JP2003066169A - Watch with noncontact data communication function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure in which, while ensuring the function as a watch and required characteristics, a noncontact data communication function can be enhanced. SOLUTION: A movement 104 and a dial 107 are arranged at the inside of a case part 101. An annular substrate 108 is attached to the back in the circumferential part of the dial 107 by an insulating adhesive 109. An antenna 111 is constituted on the substrate 108 by a conductor pattern. The movement 104 is positioned on a back lid 103. The dial 107 is coupled and held on the inner surface of the case 101.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a timepiece having a contactless data communication function.

[0002]

2. Description of the Related Art Magnetic cards have come into widespread use as telephone cards, various credit cards, point cards issued by retailers, highway highway cards, and various other purposes. However, the danger of being easily forged has become a social problem. Therefore, for the purpose of preventing forgery, holding private confidential information, and increasing the storage capacity, I
C cards are becoming popular.

However, even if the IC card is used, it is necessary to bring the reader / writer into contact with the reader / writer to transfer data. Since it had to be handed over to a writer, it was not safe with regard to forgery and confidentiality.

On the other hand, the non-contact IC card that has recently appeared can exchange data with a reader / writer without contact, so that the read / write operation is simple and the safety is improved. However, because it is a card type,
There is still the risk of loss, and there is also the complication that it must be taken out of the pocket or the like each time it is used.

For this reason, recently, a product in which the above-mentioned non-contact IC card function is built into a wrist watch always carried by a user has been put into practical use. In this wristwatch, a noncontact data communication unit including a structure built in a noncontact IC card, that is, an antenna and a transmitting / receiving means for performing noncontact data communication with the outside through the antenna is incorporated in a wrist case body. It is

FIG. 16 shows the structure of the wristwatch 10 constructed as described above. A one-piece type case body 1 in which a case portion 1A corresponding to a body and a bottom portion 1B corresponding to a back lid of a wristwatch with a back lid are integrated is provided, and a flexible portion is provided on an inner surface of the bottom portion 1B of the case body 1. A loop-shaped antenna 11 configured on the wiring board is arranged. A communication module 10IC including a transmission / reception circuit and the like is mounted on the flexible wiring board. In the wristwatch 10, the display window 2 is attached to the case body 1, and a movement 4 which is a time information display processing unit for displaying time information is arranged in the case body 1. The dial 7 is attached to the side, and the second hand 6 is attached to the movement 4 via the dial 7.
1, a minute hand 62 and an hour hand 63 are attached. A winding stem (operating shaft) 5 is connected to the movement 4, and a crown (external operating member) 6 arranged outside the case body 1 is connected to the tip of the winding stem 5.

[0007]

However, in the conventional wrist watch 10 described above, the planar shape is smaller than that of a normal non-contact IC card, and therefore, the area that determines the receiving sensitivity of the antenna (the opening area of the loop antenna is determined). )
Has a problem that the communication sensitivity is lowered and the communication distance is shortened. Therefore, there is a problem that good communication cannot be performed unless the arm is extended to a position extremely close to the antenna of the external transmitter / receiver.

Further, if the communication output is increased, it is expected that interference will occur at adjacent ticket gates or the power consumption of the wristwatch will increase, and if the opening area of the antenna is increased, the wristwatch case will be damaged. There is a problem that it becomes large.

Therefore, the present invention solves the above-mentioned problems, and an object thereof is to provide a structure capable of improving the non-contact data communication function while ensuring the function and required characteristics as a timepiece. It is in.

[0010]

In order to solve the above problems, a watch provided with a non-contact data communication function of the present invention is a display unit including a visible display plate and an antenna for performing non-contact data communication. And a non-contact communication unit including a transmitting / receiving unit, wherein the antenna is attached to the display plate via an insulating adhesive material, and the display plate is at least adhered to the antenna. It is characterized in that the existing region portion is made of an insulating material.

According to the present invention, an insulating adhesive (for example, an adhesive mainly made of an insulating resin or an insulating double-sided adhesive sheet) is used for the portion where the antenna is made of the insulating material of the display board. Since the conductive material can be configured not to be disposed on the viewing side of the antenna, the communication sensitivity can be increased and the communication distance can be increased. Further, since the antenna is attached to the display plate which constitutes a part of the display unit, the antenna is arranged on the display unit side in the timepiece,
Communication sensitivity and communication distance can be improved. Particularly, in the case of a wrist watch, the antenna is arranged at a position distant from the arm, so that the communication function can be further improved.

In the present invention, a time information display processing unit having a function of displaying time information on the display unit is provided, and the display plate is attached to the time information display processing unit via an insulating adhesive material. It is preferably attached. It is advantageous that the display plate is also attached to the time information display processing unit via an insulating adhesive material in order to improve communication sensitivity and communication distance.

Next, a timepiece having another contactless data communication function of the present invention is a contactless communication including a display unit including a visible display plate, an antenna for performing contactless data communication, and a transmitting / receiving unit. And a case body that accommodates the display unit and the non-contact communication unit, wherein the antenna is attached to the display plate, and the display plate is attached to at least the antenna. It is characterized in that the area portion is made of an insulating material, and the outer peripheral portion of the display plate is engaged with and held by the inner surface of the case body.

According to the present invention, the communication sensitivity and the communication distance can be improved in the same manner as described above, and the outer peripheral portion of the display plate is engaged with and held by the inner surface of the case body. Since the display panel inside the case body and the antenna attached to it can be easily separated from the other components, it is possible to easily replace the display panel and other components. become. In particular, by engaging and holding the display plate on the inner surface of the case part, it is possible to employ a structure in which the display plate and the time information display processing part are not directly connected, so that parts replacement and other maintenance work can be performed. It can be done more easily. Furthermore, by configuring the display plate so as to be engaged and held on the inner surface of the case portion, the display plate to which the antenna is attached and the other components can be separately configured to be incorporated into the case portion. , It becomes possible to easily assemble the watch.

In the present invention, there is provided a time information display processing unit for displaying time information on the display plate, the time information display processing unit being engaged with and held by the case body, and the display plate and the time information display processing. It is preferred that the parts are not directly fixed to each other. In this case, since the display plate is not directly fixed to the time information display processing unit, the load applied to the display plate can be reduced, and as a result, the shock resistance of the display plate can be improved. In particular, when a brittle material such as ceramics or glass is used for the display plate, it is very effective in preventing damage to the display plate. Further, since the display plate and the time information display processing section can be separately configured to be taken out from the case body, the maintainability can be further improved.

Further, it is preferable that the transmitting / receiving means is attached to the display plate. Since the transmitting / receiving means is also attached to the display board, the wiring can be easily handled and the parts replacement and other maintenance can be performed more easily. In particular, by attaching the entire non-contact communication section to the display plate, it is possible to eliminate the connection portion with the time information display means such as the movement, so that the maintenance work is greatly facilitated.

A timepiece having a different contactless data communication function of the present invention includes a display unit including a visible display plate,
A watch provided with a non-contact communication section including an antenna and a transmitting / receiving means for performing non-contact data communication, and a time information display processing section for displaying time information on the display section, wherein the antenna is on the display plate. The display plate is attached to the time information display processing unit via a separate reinforcing member, and the display plate is made of an insulating material in at least the area where the antenna is mounted. It is characterized by being attached.

According to the present invention, the communication sensitivity and the communication distance can be improved in the same manner as described above, and by providing the reinforcing member, the substantial strength of the display plate can be increased, and moreover, the display plate can be increased. It is also possible to increase the mounting strength between the time information display processing unit and the time information display processing unit. Further, since the display plate is attached to the time information display processing unit via the reinforcing member, it is possible to eliminate restrictions on the material of the display plate imposed by the attachment structure to the time information display processing unit. For example, a normal metal display plate (dial plate) is configured such that a protrusion (a dial foot) protruding from the plate surface is press-fitted and fixed into a corresponding hole portion of a time information display processing unit (movement). However, even with respect to the time information display processing unit that can deal with the protrusions in this way, it is possible to use a display plate that does not have a mounting structure corresponding to the protrusions by attaching via a reinforcing member provided with the protrusions. It will be possible. Therefore, since it is not necessary to purposely provide the above-mentioned projection on the display plate made of an insulating material, there is no need to adopt a structure in which the projection formed by another material is fixed to the display plate, and the synthetic resin with low strength or It is also possible to use brittle materials (glass, ceramics, etc.) as materials for the display board.

In the present invention, it is preferable that the reinforcing member is attached to the display plate at a position where the antenna does not overlap the antenna in plan view. Since the reinforcing member is attached to the display board at a position where it does not overlap the antenna in plan view, even if the reinforcing member is made of a conductive material such as metal, it is possible to reduce the influence on the antenna and improve the communication sensitivity. And a decrease in communication distance can be suppressed.
Further, since the antenna and the reinforcing member are arranged in parallel with the display plate, it is possible to prevent the timepiece from becoming thicker and to make the timepiece thinner.

In this case, the reinforcing member has a planar shape substantially equal to the planar shape of the time information display processing section, and the planar shapes of the reinforcing member and the time information display processing section are substantially the same. It is preferable that they are attached in a stacked state as described above. Since the reinforcing member is attached to the time information display processing unit in a state where the planar shapes thereof are substantially matched and overlapped with each other, the influence on the communication function of the antenna attached to the display plate can be further reduced. .

In the present invention, it is preferable that the reinforcing member has a fitting attachment portion that fits into the time information display processing portion. By fitting the fitting mounting portion of the reinforcing member to the time information display processing portion, the reinforcing member and the time information display processing portion can be easily positioned and the mounting strength can be secured. More specifically, for example, a protrusion (corresponding to a dial foot) protruding from the reinforcing member,
A fitting structure with a hole provided in the time information display processing unit corresponding to this protrusion may be mentioned.

Next, another timepiece having a non-contact data communication function of the present invention is a non-contact type display including a visible display plate, an antenna for non-contact data communication, and a transmitting / receiving means. A timepiece including a communication unit, comprising a holding member that engages and holds the display plate, and the antenna is attached to the holding member.

According to the present invention, since the antenna is attached to the holding member for engaging and holding the display plate,
The display plate and the antenna can be easily attached and detached, which facilitates assembly and disassembly. Further, even if the display plate is damaged, it is possible to easily replace only the display plate separately from the antenna. In this case, it is preferable that the holding member is provided with a hook-shaped engagement holding portion that can bring the display plate into an engaged and held state by a snap operation.

In the present invention, there is provided a time information display processing section for displaying time information on the display section, and a case body for accommodating the display section, the non-contact communication section and the time information display processing section. It is preferable that the holding member is positioned on the case body and engages and holds the time information display processing unit. Since the time information display processing unit is engaged and held with the holding member positioned by the case body, it becomes possible to integrally hold the display plate, the antenna and the time information display processing unit by the holding member. In addition to being easy to disassemble, the display plate and the time information display processing unit can be positioned by being incorporated into the case body. That is, it is possible to provide the same function as the middle frame in the conventional timepiece structure.
Here, it is desirable that the holding member be provided with an interposition part interposed between the display plate and the time information display processing part. By having the insertion part, it is possible to prevent a large stress from being applied between the display plate and the time information display processing part, reduce the damage of the display plate, and improve the shock resistance of the watch. You can

In the present invention, it is preferable that the antenna attached to the holding member is arranged at a position facing the display plate. Since the antenna attached to the holding member is arranged at the position facing the display plate, the holding member does not partially exist between the antenna and the display plate. It can be shortened.

In the present invention, it is preferable that all the display plates are made of an insulating material. By configuring the display plate entirely with an insulating material, it is possible to reduce the influence on the antenna and further improve the communication sensitivity and the communication distance.

In the present invention, the antenna is preferably arranged on the back surface of the display plate. By arranging the antenna on the back surface of the display plate, the degree of freedom in designing the surface of the display plate can be increased. Further, when the time information display processing unit is arranged on the back surface side of the display plate, it is possible to make effective use of the area not occupied by the time information display processing unit to make the timepiece thinner.

In the present invention, it is preferable that the antenna is formed on a substrate and the substrate is attached to the display plate. Since the antenna is formed on the board and the board is attached to the display board, the antenna can be easily attached and detached.

In the present invention, it is preferable that the antenna is formed on a substrate, and the substrate is formed in an annular shape so as to surround the time information display processing section. Since the substrate forming the antenna is formed in an annular shape so as to surround the time information display processing section, the installation area of the antenna can be increased and the sensitivity can be increased. For example, when the antenna is a loop antenna, by configuring the antenna in a shape that circulates along an annular substrate,
The aperture area that determines the antenna sensitivity can be increased without increasing the size of the watch.

In the present invention, the antenna is preferably configured in a loop so as to surround the time information display processing section. Since the antenna is configured in a loop so as to surround the time information display processing unit, the aperture area that determines the antenna sensitivity can be increased without increasing the size of the timepiece.

In each of the above inventions, the display plate may be transparent or translucent so that the antenna pattern can be seen. In this way, the existence of the non-contact data communication function can be expressed in appearance and can be used as a design of the display unit.

[0032]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of a wearable electronic device having a contactless data communication function according to the present invention will be described in detail with reference to the accompanying drawings. Each of the embodiments described below shows a configuration example of a wristwatch having a non-contact data communication function. However, the present invention is not limited to wristwatches, and can be applied to pocket watches and other portable watches, and various watches other than portable watches.

[First Embodiment] FIG. 1 is a perspective view showing the overall configuration of a contactless data communication system for a wristwatch 100 of this embodiment. The contactless data communication system includes a wristwatch 100 and an external transmitting / receiving device 510 capable of performing contactless data communication with the wristwatch 100. In the illustrated example, the external transmission / reception device 510 has a gate position (a ticket gate, etc.) that should be passed when boarding a train or a lift.
The gate device 500 installed in FIG.

The wristwatch 100 and the external transmitter / receiver 510
Non-contact data communication with the
Hz] or 125 [kHz] carrier wave (carrier signal)
Is a weak wireless communication performed by limiting the transmission output of both devices to low. Therefore, the external transceiver 51
Since the range of 0 to several centimeters is the range in which communication is possible, the user sets the wristwatch 100 to the external transmitter / receiver 5 in order to perform bidirectional data communication immediately before passing through the gate G.
Need to be close to 10 antennas.

(Structure of External Transmitting / Receiving Device) FIG. 2 is a block diagram showing the structure of the external transmitting / receiving device 510 incorporated in the gate device 500. This external transceiver 510
In, the control device 511 controls the entire external transmission / reception device 510. The transmission circuit 512 generates and outputs a transmission control signal under the control of the control device 511. Receiver circuit 513
Receives the reception signal of the antenna 515 through the high frequency circuit 514, demodulates the reception data from the reception signal and outputs the demodulated data to the control device 511. The high frequency circuit 514 generates a transmission signal based on the transmission control signal to generate the transmission signal.
The signal is transmitted to the wristwatch 100 via 15 and the reception signal from the wristwatch 100 received by the antenna 511 is output to the receiving circuit 513.

(Structure of Non-contact Communication Unit) FIG.
Contactless communication unit 11 having a contactless data communication function of 00
It is a block diagram which shows the structure of 0. In the non-contact communication unit 110 of the wristwatch 100, an antenna 111 and a transmitting / receiving unit 110 that communicates via the antenna 111.
With RF. The antenna 111 is configured in a loop shape having a loop shaft 111a oriented in a predetermined direction. The non-contact communication unit 110 is, for example, ISO
It can be configured using a non-contact IC card standard such as 14443.

The transmitting / receiving means 110RF is the antenna 1 described above.
It is composed of a tuning capacitor 112 connected to both ends of 11 and a communication module 110IC including an integrated circuit (IC) or the like.

The communication module 110IC includes a rectifying circuit 113 connected to the antenna 111 and an antenna 11
1, a receiving circuit 114 that demodulates a reception signal received by the antenna 111 and outputs reception data; and a reception circuit 114 that is connected to the antenna 111, modulates transmission data to generate a transmission signal, and sends the transmission signal to the antenna 111. The circuit 115, the reference signal generation circuit 116 that generates a predetermined reference signal based on the clock signal output from the oscillator circuit, and the reference signal transmitted from the reference signal generation circuit 116 While extracting the received data content,
A conversion processing circuit 117 which receives the contents of the transmission data to form the transmission data, a central control circuit 118 which receives the contents of the reception data from the conversion processing circuit 117 and outputs the contents of the transmission data to the conversion processing circuit 117, and a central control circuit 11
Under the control of 8, the encryption processing circuit 119 that encrypts the transmission data and the decryption of the reception data, and the memory 11 including a non-volatile memory that records the ID number and the data content.
Has 0M.

Here, the rectifier circuit 113 includes the antenna 111.
The electric power is taken out from the carrier wave (carrier signal) received at and sent to each circuit through the power supply line. Note that the power may be supplied from a power source such as a battery built in the device, instead of the power supply mode in which the power generated from the received signal is supplied. Further, the memory 110M is preferably a rewritable memory such as an EEPROM or a flash memory. Further, instead of the memory fixed in the wristwatch, or in addition to the fixed memory, a removable medium such as a memory card may be provided. In addition, the encryption processing circuit 119 uses a DES (Data Encryption Standar).
d), RSA (RL Riverst, A. Shamir, L. Adelma
It has a cryptographic processing function such as n).

(Structure of time information display processing function part) FIG. 4
FIG. 3 is a schematic block diagram showing a structure (time information display processing display unit) for realizing the main body function of the wristwatch 100.
In the time information display processing unit in the wristwatch 100, the watch C
The PU 14 and the pointer drive unit 18 are included.

The watch CPU 14 controls the entire timepiece function (time information display function). For example, drive control of time information display means such as a pointer, and display according to operation by an external operation means such as a winding stem described later. The mode and internal time are controlled.

In addition, the pointer drive section 18 includes a drive circuit 18A.
And a drive mechanism 18B. The drive mechanism 18B includes a stepping motor 310 and a drive coil 311 that generates a magnetic force by a drive pulse supplied from the drive circuit 18A.
And a stator 312 excited by the drive coil 311, and a rotor 313 rotated by a magnetic field excited inside the stator 312. In the stator 312, magnetic poles that are different due to the magnetic force generated in the drive coil 311 and face each other around the rotor 313
The magnetic saturation part 317 is provided so that it may generate | occur | produce in 5,316. Further, in order to regulate the rotation direction of the rotor 313, inner notches 318 are provided at appropriate positions on the inner circumference of the stator 312. In this structure, when the stator 312 is excited by the drive coil 311, a cogging torque is generated in the rotor 313 and the rotor 313 stops at an appropriate position. The rotation of the rotor 313 of the stepping motor 310 is caused by rotation of the fifth wheel 351, the fourth wheel 352, and the third wheel 353, 2 meshed with the rotor 313 via the pinion.
It is transmitted to each pointer by a train wheel 350 having a number wheel 354, a date wheel 355 and a hour wheel 356.

The second hand 361 is connected to the shaft of the fourth wheel & pinion 352, the minute hand 362 is connected to the second wheel & pinion 354, and the hour hand 363 is further connected to the hour wheel 356 to rotate the rotor 313. The time (time information) is displayed by these hands in conjunction with each other.

The drive circuit 18A is a circuit that supplies drive pulses of various waveforms to the stepping motor 310 in accordance with drive commands from the watch CPU 14. The drive circuit 18A includes a p-channel MOS transistor 333a,
n-channel MOS transistor 332a, p-channel MOS transistor 333b and n-channel MOS
It has a bridge circuit constituted by a transistor 332b. The driving coil 311 of the stepping motor 310 is a p-channel MOS transistor 333a.
And a connection point between the n-channel MOS transistor 332a and a connection point between the p-channel MOS transistor 333b and the n-channel MOS transistor 332b. These MOS transistors 332
When the control pulse is applied from the watch CPU 14 to the gate electrodes of a, 332b, 333a, and 333b, the drive pulse is supplied to the drive coil 311 and the rotor 313 is driven.

(Structure of Wrist Watch) Wrist Watch 10 of this Embodiment
0 is a case portion 101, as shown in FIGS.
The display window 102 attached to the front opening 101A of the case portion 101, the back cover 103 attached to the rear opening 101B of the case portion 101, and the case portion 10
Movement arranged in 1 (clock information display processing unit)
104, a winding stem (operating shaft) 105 connected to the movement 104, a crown (external operating member) 106 attached to the outer end of the winding stem 105, and a dial arranged inside the display window 102. 107 (display board) and dial 107
And an annular substrate 108 fixed to the back side of the.

Here, the movement (time information display processing section) 104 incorporates the watch CPU 14, the drive circuit 18A and the drive mechanism 18B described with reference to FIG. If necessary, the movement 104
A power source such as a battery or a large capacity capacitor may be incorporated. Further, the display portion is constituted by the display window 102, the dial 107, and the pointer portion (display means) such as the second hand 361, the minute hand 362 and the hour hand 363. The pointer driving portion of the movement 104 projects to the front side through a shaft hole 107a provided at the center of the dial 107, and the second hand 361, the minute hand 362 and the hour hand 363 are attached to the tip end portion thereof.

The substrate 108 is composed of a printed wiring board made of epoxy resin, phenol resin or the like reinforced by glass fiber or glass woven fabric as required, or a flexible wiring board made of polyimide resin or the like. A loop-shaped antenna 111 (in the illustrated example, it is wound around the substrate surface twice) is formed on the annular substrate 108. In this illustrated example, the antenna 111 is formed of a conductive pattern such as a copper foil fixed on the substrate 108. It should be noted that the illustrated antenna 111 is schematically drawn, and may actually have various patterns such as a coiled pattern and a pattern formed on both front and back surfaces of the substrate.

Further, although the antenna 111 is formed in a loop shape which is wound several times in the figure, the number of turns and the shape of the loop antenna are arbitrary. More specifically, when the frequency of the carrier wave is 13.56 [MHz], a loop antenna of 2 to 3 turns may be used, and when the frequency is 125 [kHz], several hundreds of turns are required. Become.

Since the antenna gain of the loop antenna increases as the opening area increases, it is preferable to form the antenna 111 inside the case 101 as close to the outer periphery as possible.
In the present embodiment, the substrate 108 is formed in an annular shape along the inner surface of the case portion 101. The movement 104 is provided in an opening provided inside the ring shape of the substrate 108.
Are arranged. Therefore, the antenna 111 is configured to surround the movement 104.

Further, the above communication module 110IC is mounted on the board 108 and connected to both ends of the antenna 111. The tuning capacitor 112 connected to the antenna 111 is also mounted on the substrate 108, but is not shown.

The substrate 108 is adhered and fixed by an insulating adhesive material 109 with its front surface facing the rear surface of the dial 107. The adhesive material 109 may be any material as long as it can attach the two members in contact with each other. For example, an adhesive agent having an insulating synthetic resin as a base material or both surfaces of the insulating base material. And a double-sided adhesive sheet material (so-called double-sided adhesive tape) having an adhesive surface (adhesive layer).

In the present embodiment, the case portion 101 is preferably made of an insulating material such as synthetic resin or ceramics. The back cover 103 is also preferably made of an insulating material such as synthetic resin or ceramics. It is preferable that the dial (display plate) forming a part of the display unit is also made of an insulating material such as synthetic resin or ceramics. Since these are made of an insulator, the communication sensitivity of the antenna 111 is increased and the communication distance is increased. In particular, the display window 102, dial 107, pointer 36
The display unit composed of 1,362,363, etc. is the antenna 1
11 is arranged on the front side of the antenna 11, and the antenna 11
Since it is disposed so as to face the loop-shaped opening surface of No. 1, the communication sensitivity and the communication distance can be improved by forming the entire display unit with an insulator. The dial 10
It is desirable that all of 7 are made of an insulating material, but at least the antenna 111 (the region where the substrate 108 is attached is made of an insulating material).
A conductive material such as metal may be partially attached on the surface of the dial 107.

FIG. 7 shows the case portion 101 and the dial plate 107.
FIG. 3 is an enlarged cross-sectional view (a) and (b) showing an engagement structure with
FIG. 8 is a plan view of the dial 107 and its lower layer structure.
On the inner surface 101a of the case portion 101 that faces the outer peripheral portion of the dial 107, a plurality of (in the illustrated example, 2
(3) engagement recess 101b is formed. On the other hand, on the outer peripheral portion of the dial plate 107, a convex portion 107b is formed at a position corresponding to the engaging concave portion 101b. The convex portion 107b of the dial plate 107 is engaged with the engaging recessed portion 101b, so that the dial plate 107 is engaged and held by the case portion 101.

In this embodiment, as described above, the dial 107 is engaged and held in the recess 101b provided in the inner surface 101a of the case 101, and the movement 104 is positioned and held with respect to the back cover 103. It is in a state of And the dial 107 and movement 1
04 is configured so as not to be directly fixed to each other. In this case, the dial 107 and the movement 104
Although the structure may be such that and are in contact with each other, in the illustrated example (see FIG. 5), the dial 107 and the movement 1
04 and 04 do not contact each other.

As described above, in this embodiment, the dial 1
07 and movement 104 are not directly fixed,
It is in a state of being mutually positioned through the case body. For this reason, when the back cover 103 is disassembled by being removed, the dial 107 and the movement 104 can be easily separated from each other, which facilitates maintenance such as replacement of parts. In particular, since the non-contact communication section is entirely configured on the substrate 108 as in this embodiment,
Since it is possible to eliminate a connecting portion such as a wiring between the substrate 108 and the movement 104, it is possible to more easily perform maintenance. Further, when an impact is applied from the outside, the stress applied to the dial 107 by the movement 104 can be reduced, so that the damage of the dial 107 can be reduced and the impact resistance can be enhanced.

As will be described later, when displaying the contents of communication during non-contact data communication, a display body 110DP composed of a liquid crystal display panel or the like is provided on the substrate 108 as shown by the alternate long and short dash line in FIG. It is preferable to provide the dial plate 107 with an opening that is mounted and exposes the display surface of the display body 110DP. This makes it possible to visually recognize the display content displayed on the display surface of the display body 110DP exposed from the opening of the dial 107.

By configuring the dial 107 to be transparent or semi-transparent, the antenna 1 can be displayed in the display unit.
The eleven pattern shapes may be made visible. By doing this, it becomes possible to appeal to the appearance that the watch has a non-contact data communication function.
It can also be used as part of the design of the display unit.

(Operation of the wristwatch 100) Next, the wristwatch 10
The operation of 0 will be described. FIG. 9 is a sequence diagram showing a procedure of non-contact data communication between the wristwatch 100 and the external transmission / reception device 510.

As shown in FIG. 9, an external transmitter / receiver 510
Normally transmits a polling signal (communication request) repeatedly (at a predetermined cycle) by the start-stop tuning protocol (step S101). More specifically, the control device 511 of the external transmission / reception device 510 causes the transmission circuit 512 to generate a polling signal, and the high frequency circuit 514 and the antenna 5 are connected.
It continues to send polling signals via 15. When the wristwatch 100 enters the communication range of the external transmission / reception device 510 and receives the polling signal, the wristwatch 100 starts communication. At the time of communication, first, data for mutual authentication is sent to the external transmission / reception device 510 (step S102), whereby the mutual authentication period T01 starts. External transceiver 5
The watch 10 detects that the wristwatch 100 has entered the communication range of its own, and transmits data for mutual authentication to the wristwatch 100 (step S103). Upon receiving this data, the wristwatch 100 transmits response data indicating that the mutual authentication is completed to the external transmission / reception device 510 (step S104).

When the mutual authentication is completed as described above,
The reading period T02 is entered, and the external transmission / reception device 510
Transmits read request data to read data from the wristwatch 100 (step S105). As a result, the wristwatch 100 reads out the corresponding data from the memory address in the memory 110M (see FIG. 3) corresponding to the read request data and transmits it to the external transmitting / receiving device 510 (step S106).

When the memory data from the wristwatch 100 is received by the external transmitting / receiving apparatus 510 as described above, the determination period T03 starts. In the determination period T03, the external transmission / reception device 510 recognizes the data type of the ticket, prepaid card, or the like, the expiration date, and the like from the received data, and determines whether the content is acceptable (step S107). ).

When the above determination is completed, the external transmitter / receiver 5
10 shifts to the writing period T04, and transmits data such as the presence or absence of boarding and the payout amount to the wristwatch 100 (step S108). As a result, the wristwatch 100 transmits response data for notifying that the data has been received to the external transmission / reception device 510 (step S109).

The communication is completed by the above procedure, and the wristwatch 100 shifts to the internal processing period T05. This period T0
In 5, the contents of the data sent in step S108 are written in the corresponding memory address of the memory 110M, and necessary items are recorded (boarding record) or updated (balance data, etc.). On the other hand, the external transceiver 510
In this period T05, the response data transmitted from the wristwatch 100 in step S109 is confirmed, and then the next polling process is prepared (step S110).

In the mutual processing period T10 including the mutual recognition period T01, the reading period T02, the judgment period T03, the writing period T04, and the internal processing period T05, for example, the display body shown by the two-dot chain line in FIG. 110
When a DP is provided, the display 110DP communicates with
The communication processing stage or the contents of the communication processing (records such as boarding records and balance data or payout data) may be displayed. At this time, instead of the time information, the communication state, the communication processing stage, the communication processing content, or the like may be displayed.

In the embodiment described above, FIG.
As shown in FIG.
Are used in a state in which the band 100X is attached to the arm (wrist) 10. In this state, the case part 1
The back cover 103 attached to the back side of 01 is an arm (wrist)
Touching 10 skin surfaces.

In the wristwatch 100 of this embodiment, the substrate 108 is arranged on the back surface of the dial 107 inside the case portion 101, and the antenna 1 is placed on the front surface of the substrate 108.
11 are configured. Therefore, unlike the above-described conventional example, the antenna 111 is arranged at a position away from the inner surface of the back cover 103, so that the distance to the living body such as the arm becomes long, and the display window 102 is accordingly increased. Since it is closer to the surface of the, the communication sensitivity can be increased and the communication distance can be increased.

In particular, in the wristwatch 100 of this embodiment, since the antenna 111 is arranged on the back surface of the dial 107 as described above, as shown in the drawing, the front side (in front of the central position CP in the thickness direction thereof) ( The antenna 111 is arranged on the display unit side), and as a result, it is possible to improve the communication sensitivity and the communication distance.

In the present embodiment, since the substrate 108 having the antenna 111 is arranged on the back surface of the dial 107, the antenna is located on the front side (the display section side) of the winding stem (operation axis) 105. 111 will be arranged. At this time, the communication module 110I on the substrate 108
The mounting position of C is set to a position deviating from the region where the substrate 108 and the winding stem 105 pass (a position on the opposite side to the region where the winding stem 105 passes in the illustrated example). Therefore, the interference between the communication module 110IC and the winding stem 105 can be prevented, and as a result, the case portion 101 can be made thin.

Further, since the substrate 108 having the antenna 111 is arranged on the rear surface of the dial 107, the antenna 111 is arranged on the rear surface of the dial 107. The surface design is not affected, and the antenna 111 (actually, the substrate 108 forming the antenna 111) can be supported by the dial 107, which facilitates the assembly work.

Further, as described above, since the dial plate 107 and the movement 104 are constructed so as not to be fixed directly to each other, the weight load on the dial plate 107 can be reduced, and as a result, It is possible to prevent the dial plate 107 from being damaged and improve the shock resistance of the timepiece. In the case of this embodiment, if the dial 107 is damaged, the antenna 111 and the communication module 110IC also have to be replaced, so it is important to prevent the dial 107 from being damaged. In particular, when a brittle material such as glass or ceramics is used for the dial 207, it is very effective for preventing the dial 107 from being damaged. Here, in order to prevent the dial plate 107 from being damaged more reliably and further improve the impact resistance, it is preferable that the dial plate 107 and the movement 104 are not in contact with each other as described above.

[Second Embodiment] Next, FIG. 10 to FIG.
A second embodiment of the timepiece according to the invention will be described with reference to FIG. FIG. 10 is a schematic cross-sectional view schematically showing the main body structure of the wristwatch 200 of the second embodiment, and FIG. 11 is the wristwatch 200.
FIG. 12 is a cross-sectional view schematically showing the main body structure (structure in a layer lower than the dial), and FIG. 12 is a plan view showing the internal structure of the dial and its lower layer. Also in this embodiment, FIG. 1 and FIG.
Since it is configured to perform non-contact data communication with the external transmission / reception device 510 shown in FIG. 1, description of the configuration of the external transmission / reception device 510 will be omitted.

In this embodiment, a display window 202 made of an insulating material such as glass is attached to the front opening 201A of the case portion 201 made of an insulating material such as synthetic resin or ceramics. A back cover 203 made of an insulating material such as synthetic resin or ceramics is attached to the rear side opening 201B of the case portion 2
01, the display window 202 and the back cover 203 constitute a case body.

In the case body, the time information display processing unit 204 is positioned on the back cover 203, and the time information display processing unit 204 is provided with the dial 20 via the reinforcing member 251.
It is attached to 7. The dial 207 is made of an insulating material such as synthetic resin, ceramics, shell material, etc.
It is attached to No. 1 using an adhesive or a double-sided adhesive sheet material (double-sided adhesive tape).

The reinforcing member 251 may be made of an insulating material such as synthetic resin or ceramics, but is preferably made of metal so as to ensure sufficient rigidity even if it is thin. A shaft hole 25 is provided at the center of the reinforcing member 251.
1a is provided, and the mounting foot portion 251b is provided so as to project from the lower surface of the reinforcing member 251. The mounting foot portion 251b is fitted and fixed in a hole provided in (the base plate of) the movement 204 by press fitting or the like. The reinforcing member 251 has a planar shape that is substantially the same as that of the movement 204, and is attached to the movement 204 in a stacked state so that the planar shapes thereof are substantially the same.

An annular substrate 208 is attached on the back surface of the outer peripheral portion of the dial plate 207 via an insulating adhesive material (for example, an insulating adhesive agent or an insulating double-sided adhesive sheet material) 209. A loop-shaped antenna 211 formed of a conductor pattern is formed on the surface of the substrate 208.
A communication module 210IC similar to that of the first embodiment is mounted on the back surface of the substrate 209. This communication module 210IC is mounted and arranged in a region other than a region where the winding stem 205 connecting between the movement 204 and the crown 206 overlaps the substrate 208 in plan view.

In this embodiment, the central portion of the dial 207 is fixed to the movement 204 from the back cover 203 side through the reinforcing member 251, and the outer peripheral portion of the dial 207 has the display window 202 side (display portion). The case portion 201 abuts from the side or the visible side). Therefore, the integrated movement 204, the reinforcing member 251, and the dial 207 are fixed in a state of being sandwiched by the case portion 201 and the back cover 203 from both front and back sides.

In this embodiment, as described above, the dial 2
Since 07 is attached to the movement 204 via the reinforcing member (reinforcing plate) 251, the movement 204
It is possible to reduce the damage of the dial 207 due to the stress received from the dial. Further, the dial 207 is a reinforcing member 251.
Since it is supported from behind by the, the substantial strength of the dial 207 itself is improved.

As described above, the reinforcing member 251 is preferably made of metal in terms of strength, but when the reinforcing member 251 is made of a conductive material such as metal, the antenna 2
11 may adversely affect the communication sensitivity and the communication distance. On the other hand, in the present embodiment, the reinforcing member 251 is arranged only on the area where the antenna 211 is not attached to the dial plate 207, so that the influence on the communication state is suppressed. Further, the reinforcing member 251 is formed to have substantially the same plane shape (or almost the same outer shape) as the movement 204, and the reinforcing member 251 and the movement 204 are formed.
By mounting them so that and are substantially in line with each other, the influences on the communication sensitivity and the communication distance are further reduced.

In the above embodiment, the dial plate 207 and the reinforcing member 251 are attached to each other by adhesion.
07 and the reinforcing member 251 may be fixed by fitting (press-fitting). For example, as shown in FIG. 13, a dial 207 '
And the reinforcing member 252 are overlapped with each other, the convex portion 252c and the concave portion 207c ′ are integrally deformed by a diamond stitch or the like, whereby the dial plate 207 ′ and the reinforcing member 252 are formed.
And may be attached to each other. The reinforcing member 252 may be provided with a mounting foot portion (a dial foot) 252b for mounting on the movement 204.

[Third Embodiment] Next, the structure of a wristwatch 300 according to a third embodiment of the present invention will be described with reference to FIG. Also in this embodiment, since the non-contact data communication with the external transmitting / receiving apparatus 510 shown in FIGS. 1 and 2 is performed, the external transmitting / receiving apparatus 510 is configured.
The description of the configuration will be omitted.

As shown in FIG. 14, the wristwatch 300 includes a case portion 301, a display window 302, a back cover 303, a movement 304, a winding stem 305, a crown 306, a dial 307, a substrate 308, an antenna 321, and a communication module 320I.
A C hand, a second hand 361, a minute hand 362, and an hour hand 363 are provided.

In the wristwatch 300 of this embodiment, the ring-shaped holding member 3 positioned by the case portion 301.
31 are accommodated. The material of the holding member 331 is not particularly limited, but it is preferably an insulating material such as synthetic resin. The holding member 331 has a front surface side (a dial 307).
The ring-shaped concave groove 331a for housing the ring-shaped substrate 308 having the antenna 321 and the dial plate 30.
7, a hook-shaped engagement holding portion 331b configured to be engaged with and held from the outer peripheral portion of 7 and an inner peripheral edge, and is introduced into a gap between the movement 304 and the dial plate 307, A flange-shaped insertion portion 331c configured to intervene between the two, and a hook-shaped insertion portion 331c configured to engage and hold the movement 304 from the back side at a position facing the insertion portion 331. Engagement holder 331d
And are provided.

The holding member 331 is mounted with the substrate 308 which constitutes the antenna 321, and the movement 3
04 and the dial 307 are indirectly held in the case body (that is, a function as an inner frame). In addition, the interposition portion 331c is the movement 304
Is disposed between the dial plate 307 and the dial plate 307, and has a function of reducing or suppressing the stress acting between the dial plate 307 and the like due to an impact force received from the outside, and particularly reducing the deformation and damage of the dial plate 307. By providing such a holding member 331, damage to the dial plate 307 is reduced, impact resistance is enhanced, and in particular, a brittle material such as glass or ceramics can be used for the dial plate 307.

Further, since the substrate 308 accommodated in the concave groove 331a of the holding member 331 is arranged so as to face the dial plate 307, the antenna 321 has the dial plate 307 as in the first and second embodiments. It is possible to configure a communication environment substantially equivalent to the case where the communication environment is arranged on the back surface of the. On the other hand, in the present embodiment, since the dial plate 307 and the substrate 308 are not fixed as in the first and second embodiments, the dial plate 3 can be simply removed from the holding member 331.
07 and substrate 308 can be replaced individually.

The back cover 303 of the wristwatch 300 includes an annular cover frame portion 303A made of an insulating material, and the cover frame portion 303A.
And a closing portion 303B which is attached so as to close the opening portion of and is made of an insulator or the like. Here, the lid frame portion 30
The inner end of 3A is brought into contact with the holding member 331 from the back side, and the holding member 331 is sandwiched between the holding member 331 and the case portion 301, thereby performing vertical positioning in the drawing. Further, in the case back 303, the closed portion 303B is made of a transparent material such as a glass material, so that a timepiece having a skeleton structure can be constructed.

The wristwatch having the non-contact data communication function of the present invention is not limited to the above-mentioned illustrated example, and various changes can be made without departing from the scope of the present invention. is there.

[0087]

As described above, according to the present invention,
In a watch provided with a non-contact data communication function, it is possible to improve the communication function and at the same time secure required characteristics as a watch.

[Brief description of drawings]

FIG. 1 is a schematic explanatory diagram showing a usage mode of a first embodiment of a communication system including a watch having a non-contact data communication function according to the present invention.

FIG. 2 is a block diagram showing a schematic configuration of an external transmission / reception device in a communication system.

FIG. 3 is a block diagram showing a schematic configuration of a non-contact data communication unit of the wristwatch according to the first embodiment.

FIG. 4 is an explanatory diagram schematically showing a schematic configuration of a time information display processing unit of the first embodiment.

FIG. 5 is a schematic vertical cross-sectional view schematically showing the main body structure of the first embodiment (the right side of the central one-dot chain line is the 3 o'clock side cross section, and the left side is the 8 o'clock side cross section).

FIG. 6 is a cross-sectional view schematically showing the internal structure of the first embodiment.

7A and 7B are enlarged partial cross-sectional views (a) and (b) showing the engagement holding structure between the case portion and the dial plate in the first embodiment.

FIG. 8 is a plan view of a dial according to the first embodiment.

FIG. 9 is a sequence diagram showing a communication procedure of the communication system.

FIG. 10 is a vertical cross-sectional view schematically showing the main body structure according to the second embodiment of the present invention (the right side of the central dashed line is the 3 o'clock side cross section, and the left side is the 8 o'clock side cross section).

FIG. 11 is a cross-sectional view schematically showing the internal structure of the second embodiment.

FIG. 12 is a plan view of a dial according to the second embodiment.

FIG. 13 is a sectional view showing a joint structure of a dial and a reinforcing member that can be used in the second embodiment.

FIG. 14 is a vertical sectional view schematically showing a main body structure of a second embodiment according to the present invention.

FIG. 15 is an explanatory diagram showing a usage state of the first embodiment.

FIG. 16 is a schematic vertical sectional view schematically showing the structure of a conventional timepiece having a non-contact data communication function.

[Explanation of symbols]

100 watches 101 case 102 display window 103 case back 104 movement 105 Makishin 106 Crown 107 dial 108 substrate 109 adhesive 110 Non-contact communication section 110IC communication module 111 antenna

Front page continuation (51) Int.Cl. ⁷ Identification code FI theme code (reference) H01Q 1/44 H01Q 1/44 F term (reference) 2F002 AA01 AA05 AB02 AB03 AB04 AB06 AC01 AC03 BB02 BB06 GA06 2F082 AA00 BB00 EE03 EE05 EE08 FF01 FF04 5J046 AA04 AA07 AB11 SA06 5J047 AA04 AA07 AB11 FC01 FD01

Claims (16)

[Claims] 1. A timepiece including a display unit including a visible display plate and a non-contact communication unit including an antenna and a transmitting / receiving unit for performing non-contact data communication, wherein the antenna is provided on the display plate. In contrast, the display plate is attached via an insulating adhesive material, and the display board has a contactless data communication function characterized in that at least a region where the antenna is adhered is made of an insulating material. . 2. A time information display processing unit having a function of displaying time information on the display unit, wherein the display plate is attached to the time information display processing unit via an insulating adhesive material. The timepiece according to claim 1, wherein 3. A display unit including a visible display plate, a non-contact communication unit including an antenna and a transmitting / receiving unit for performing non-contact data communication, and a case body accommodating the display unit and the non-contact communication unit. A timepiece provided with, wherein the antenna is attached to the display plate, the display plate, at least a region portion where the antenna is attached is made of an insulating material, the outer peripheral portion of the display plate is A timepiece having a non-contact data communication function, which is engaged and held on the inner surface of the case body. 4. A time information display processing unit for displaying time information on the display plate, the time information display processing unit being engaged with and held by the case body, the display plate and the time information display processing unit. The timepiece having a contactless data communication function according to claim 3, wherein the timepieces are not directly fixed to each other. 5. A display unit including a visible display plate, a non-contact communication unit including an antenna and a transmitting / receiving unit for performing non-contact data communication, and a time information display processing unit for displaying time information on the display unit. A timepiece provided with the antenna, the antenna being attached to the display plate, the display plate, at least a region portion where the antenna is attached is made of an insulating material, the display plate is a separate body The timepiece having a non-contact data communication function, which is attached to the time information display processing unit via the reinforcing member of. 6. The non-contact data communication function according to claim 5, wherein the reinforcing member is attached to the display plate at a position where the reinforcing member does not overlap the antenna in plan view. clock. 7. The reinforcing member has a planar shape that is substantially equal to the planar shape of the time information display processing section, and the planar shapes of the reinforcing member and the time information display processing section are substantially the same. The timepiece having a non-contact data communication function according to claim 6, wherein the timepiece is attached in a state of being overlapped. 8. The non-contact data according to claim 5, wherein the reinforcing member has a fitting attachment portion that fits into the time information display processing portion. A clock with a communication function. 9. A timepiece including a display unit including a visible display plate and a non-contact communication unit including an antenna for performing non-contact data communication and a transmission / reception means, wherein the display plate is engaged and held. A timepiece having a non-contact data communication function, characterized in that the antenna is attached to the holding member. 10. A holding unit comprising: a time information display processing unit for displaying time information on the display unit; and a case body accommodating the display unit, the non-contact communication unit and the time information display processing unit. The timepiece having a non-contact data communication function according to claim 9, wherein a member is positioned on the case body and engages and holds the time information display processing unit. 11. The contactless data communication function according to claim 9, wherein the antenna attached to the holding member is arranged at a position facing the display plate. clock. 12. The timepiece having a non-contact data communication function according to claim 1, wherein all the display plates are made of an insulating material. 13. The antenna according to claim 1, wherein the antenna is arranged on a back surface of the display plate.
A watch provided with the non-contact data communication function according to any one of 2 above. 14. The contactless data communication function according to claim 1, wherein the antenna is formed on a substrate, and the substrate is attached to the display plate. Watch with. 15. The antenna according to claim 2, wherein the antenna is formed on a substrate, and the substrate is formed in an annular shape so as to surround the time information display processing unit. Either claim 10 or claim 1
A watch provided with the contactless data communication function according to the item. 16. The antenna according to claim 2, wherein the antenna is configured in a loop shape so as to surround the time information display processing section.
A watch provided with the non-contact data communication function according to claim 11.