JP2722037B2 - Cordless telephone equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cordless telephone device, and more particularly to a cordless telephone device which prevents unauthorized use by disassembling and remodeling a casing of a base unit or a slave unit.

[0002]

2. Description of the Related Art Generally, a master unit or a slave unit of this kind is
It is divided into an upper case and a lower case, and the two cases are combined to form a housing. In recent years, with the spread of cordless telephone devices, unauthorized use of disassembling both cases and intentionally increasing the output of radio waves has become a problem for the purpose of modification. In order to prevent this, conventionally, there have been a method in which the two cases are hardly disassembled using a special screw, and a method in which the mating surfaces of the two cases are semi-permanently joined with an adhesive.

[0003]

However, in the former example described above, even if a special screw is used, the disassembly cannot be prevented, and the remodeling cannot be completely prevented.
In the latter example, although it is an effective means for preventing disassembly and preventing remodeling, it has a drawback that maintenance and maintenance cannot be performed because it cannot be disassembled.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above-mentioned conventional disadvantages, and an object of the present invention is to provide a cordless telephone device capable of preventing remodeling and capable of maintenance and maintenance. It is in.

[0005]

In order to achieve the above object, a cordless telephone device according to the present invention is provided for detecting an unauthorized disassembly.
The switch operated by the means is connected to the CPU and the power to the CPU.
It is interposed between the power supply unit to be supplied. Also,
In the cordless telephone device according to the present invention, the switch operated by the unauthorized disassembly detecting means is arranged on a data line connecting the CPU with the IDROM storing the ID numbers of the master unit and the slave unit. In the cordless telephone device according to the present invention, the switch operated by the unauthorized disassembly detecting means is provided by a CPU.
And the state of the switch is monitored by the CPU. Further, the unauthorized disassembly detecting means includes a switch lever for operating the switch, a lock mechanism for locking the switch lever, and an engagement for releasing the lock with the lock mechanism by contacting the switch lever in conjunction with opening and closing of the case. It is composed of a rod. Further, the engaging rod of the unauthorized disassembly detecting means is integrally formed on the bottom surface of the battery housing portion of the upper case.

[0006]

According to the present invention, when the upper case and the lower case are disassembled, the illegal disassembly detecting means operates and the CPU is disassembled.
The power supply to is turned off. Or IDROM
Reading is blocked. Alternatively, the CPU detects that the unauthorized decomposition detection means is operating. Further, after disassembly, when the two cases are combined, unless the operation rod of the unauthorized disassembly detection means is locked to the lock mechanism, the unauthorized disassembly detection means is not reset. Also, the bottom of the battery compartment is close to the board mounted on the lower case,
The length of the engagement rod is reduced.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of a cordless telephone device according to the present invention, FIG. 2 is a partially cutaway side view of the slave unit housing, and FIG. 3 is an overall perspective view showing the operation of the unauthorized disassembly detection switch. In FIG. 1, a base unit 1 includes an external line interface 11, a cross point 12 as a communication path, a wireless transmission / reception unit (hereinafter, RF unit) 13, which has a control channel and a plurality of communication channels and performs wireless communication with each slave unit. CPU1
4. PB dialer 15 for generating a push button dial signal, IDROM 16 for storing the ID number of the base unit, RA
M17, a hook switch 18, a key unit 19, a toller 20 for generating various tones, and the like. Here, the outside line interface 11 in the base unit 1 closes the outside line loop and the inversion detection loop, the inversion detection circuit 11a, the incoming call detection circuit 11b, the communication circuit 11c, and the outside line loop to capture the outside line. And a transistor Q to be performed.

The handset 3 has an RF unit 31, a CPU 32, a key unit 33, an IDROM 34 for storing the ID number of the handset, a tone ringer 35 for generating various tones, It comprises a power supply 36 for supplying power to the CPU 32 and the like. And C
The switch 9a is provided between the PU 32 and the power
The switches 9b are respectively provided on the data lines of the IDROM 2 and the IDROM 34. The switch 9c is connected to the CPU 32. The CPU 32 turns on the switch 9c,
Monitors the OFF state.

[0009] Here, for example, in handset 3 ₁ outside line calling operation is performed, RF unit 13 from the main unit 1 child machine 3 ₁
When the activation request is received through the control channel of the slave unit 1, the base unit ₁ returns the idle communication channel number of the RF unit 13 to the slave unit 31 and the slave unit 3 via the idle communication channel.
External line capture data transmitted from ₁ is received to capture an external line and close the cross point 12. Then, when receiving the dial data of a result of the operation in the sub-terminal 3 ₁ performs call party and sent to the outside line capturing the dial signal, a call state by the response of the other party. This outside line communication is performed via the communication channel of the RF unit 13.

In FIG. 2, the housing of the slave unit 3 is divided into a shallow dish-shaped lower case 50 and an upper case 70 having a U-shaped cross section. A stud 50b is erected on the bottom surface 50a of the lower case 50, a plurality of small holes 51 are formed on the front end side, and a small hole 52 is formed on the rear end side. A portion 52a is provided upright, and a dial button 56a and a function button 56b are slidably supported by holes (not shown) in the center. A slit 54a is formed in the back surface 54, and a standing wall 55 having a fitting hole 55a is formed so as to protrude upward into the case 50. The microphone 61 mounted on the communication circuit board 60 disposed in the lower case 50 is fitted into the annular portion 52a, and the charging terminal 62 is exposed to the outside through the slit 54a.

At the rear end side of the upper case 70, a battery housing 71 is formed in a recessed shape, and a boss 72 protrudes from the bottom of the battery housing 71. A fitting hole 73 a is formed in a partition wall 73 of the upper case 70 from the battery storage unit 71, and an antenna 74 is provided at a tip end of the upper case 70.
Has been planted. Lid 80 to cover battery storage 71
At the rear end, a projection 81 projects horizontally, and at the tip, an elastic engagement piece 82 projects in the same direction as the projection 81.

The two cases 50 and 70 are aligned with each other so that the projections (not shown) provided at the opening edges of the two cases are engaged with the elastic engagement pieces to unite the two cases. The screw 77 from the battery housing 71
Is inserted into the boss 72 and screwed into the stud 50b, so that the two cases 50 and 70 are fixed. After fixing the two cases, the rechargeable battery 85 is stored in the battery storage section 71, and the cover 8 is
No. 81 is inserted into the fitting hole 55a, and at the same time, the elastic engaging piece 82 is inserted into the fitting hole 73a and slid. Lid 80
Is put on the battery storage section 71.

The substrate 6 corresponding to the bottom of the battery housing 71
Above 0, an unauthorized decomposition detection switch 9 is provided.
As shown in detail in FIG.
An engagement rod 9 protruding downward from the bottom surface of the battery housing 71.
Below 1, a case 92 mounted on the substrate 60 is provided. Inside the case 92, a hollow portion 93 having a substantially inverted T shape in a side view is provided in the longitudinal direction of the case 92. A pair of step-shaped shoulders 93 a are formed in the hollow portion 93, and a rectangular through hole 93 b penetrating the case 92 is provided at the upper end. A substantially cross-shaped switch lever 94 composed of a vertical member 95 and a horizontal member 96 is provided in the hollow portion 93.
Is inserted. At the upper end of the vertical member 95, an engaging rod 9 is provided.
1, corresponding to the inclined surface 91a formed at the lower end of
5a is formed at its lower end with a claw 95b.

At the lower end of the vertical member 95, a compression spring 97a that is in contact with the substrate 60 is attached, giving the habit of moving the switch lever 94 in the direction A (upward) in the figure. A hollow portion 9 is provided at the center of the switch lever 94.
A tension spring 97b, one end of which is hooked on the left side wall 93c of the third lever 3, is hooked, thereby giving the switch lever 95 the movement behavior in the B direction. A lock member 98 is fixed to the substrate 60 located below the engagement rod 91,
The lock member 98 is provided with a groove 98a with which the claw 95b engages. The compression spring 97a is formed of a conductive member, and the substrate 60 with which the spring 97a slides is provided.
A pattern not shown is provided, and a spring 97 is provided.
A contact plate 99 that forms a conventionally known switch that is turned on and off by the sliding contact of a is configured. When the switch lever 95 is locked by the lock member 98 in the state shown in FIG.
For a length h up to 8a, the vertical member 96 and the shoulder 93a
Is formed to be large. Also, the lock member 9
8, the distance L between the vertical member 95 and the right side wall 93d of the hollow portion 93 is large. The above-mentioned switches 9a, 9b and 9c are all wired so as to operate in conjunction with ON and OFF of the contact plate 99 of the unauthorized disassembly detection switch 9.

The operation of such a configuration will be described below. First, before assembling the two cases 50 and 70 together, as shown in FIG.
5b is engaged with the groove 98a of the lock member 98, and the switch lever 94 is locked to the lock member 98 to be in a holding state. In this state, the contact plate 9 is actuated by the spring 97a.
The switch 9 is ON. In this state, the open end faces of both cases 50 and 70 are joined, and the battery housing 7
A screw 77 is screwed into the stud 50b from the boss 72 from 1 to join the two cases 50 and 70 together. When the two cases are combined, the engagement rod 91 protruding from the bottom surface of the battery housing portion 71 abuts the vertical member 95 of the switch lever 94, and the vertical member 95 is opposed to the arrow B against the spring 97b. Move in the direction. With this movement, the nail 95b is
The engagement with the groove 98a is released, and the vertical member 96 is engaged with the shoulder 93a by the spring force of the spring 97a.
As a result, the switch lever 94 is positioned and held on the right side wall 93d as shown in FIG. Even in this state, the contact plate 99 is formed by the spring 97a.
Switch is ON. In this state, it is shipped from the factory as a product.

Next, when the upper case 70 is incorrectly divided from the lower case 50 with respect to the product thus shipped, the vertical member 95 is disengaged from the engaging rod 91 and the spring 97b causes an arrow. Move in the B direction,
As shown in FIG. 3C, it is located on the left side wall 93c side.
When located on the left side wall 93c side, the switch of the contact plate 99 is turned off, and the switches 9a, 9
b and 9c are opened. When the switch 9a is opened, the power supply from the power supply 36 to the CPU 32 stops, and the operation of the CPU 32 stops. When the switch 9b is opened, the ID number of the slave 3 is
It cannot be read by PU32. in this way,
When the switches 9a and 9b are opened, the handset 3 cannot perform wireless communication with the master unit 1.

The CPU 32 monitors the state of the switch 9c. When the switch 9c is opened, the CPU 32 detects this and performs control such as prohibiting reading of the IDROM 34, and performs control with the slave unit 3 and the master unit. 1 cannot be wirelessly communicated. This wireless communication disabled state is caused by the two cases 5
0, 70 again, the switch lever 94
Is maintained as it is, so that the child device 3
Wireless communication cannot be performed, and even if the handset 3 is remodeled, it cannot be used, so that fraud can be prevented.

On the other hand, when the two cases 50 and 70 are divided for the purpose of maintenance and maintenance, after the maintenance and maintenance are completed, the switch lever 94 is moved against the spring force of the spring 97b from the state shown in FIG. 3A, the claw 95b is engaged with the groove 98a, and the switch member 94 is locked and held by the lock member 98, as shown in FIG. Reset.
Thereafter, the two cases 50 and 70 are combined, and the switch 9 is set to the state shown in FIG.
By setting b and 9c to the closed state, a wireless communication between the slave unit 3 and the master unit 1 becomes possible. The switch 9 is formed extremely small so as to be accommodated in a small gap between the bottom surface of the battery accommodating portion 71 and the printed circuit board 60, and can be formed so as not to be apparently distinguished from the switch. Further, the switch lever 94 can be made operable only with a special tool.

As described above, the lock mechanism including the claw 95b and the groove 98a for temporarily holding the switch 9 as the fraud detecting means, and the lock mechanism for unlocking the lock mechanism when the two cases 50 and 70 are combined. Since the joint rod 91 is provided, when the two cases 50 and 70 are divided for the purpose of maintenance and maintenance, it is necessary to artificially engage the claw 95b with the groove 98a before reassembling. On the other hand, the switch 9 is not reset even if the two cases 50 and 70 are disassembled for the purpose of remodeling and thereafter simply combined, so that wireless communication becomes impossible and illegal use by remodeling can be prevented. In addition, since the engagement rod 91 is integrally formed on the bottom surface of the battery housing portion 71 close to the substrate 60 on which the switch 9 is mounted, the length of the engagement rod 91 can be shortened. The strength of the switch lever 94 can be increased to prevent the engagement rod 91 from being damaged when the switch lever 94 is brought into contact with the switch lever 94, and the engagement error with the switch lever 94 can be reduced.

In this embodiment, the switches 9a, 9
b and 9c are connected to the CPU 32 at the same time,
If at least one is selected and connected, the slave unit 3 and the master unit 1
It is needless to say that the wireless communication between the mobile phone and the mobile phone can be disabled. A switch 9 is provided on the slave unit 3 side.
Although a, 9b, and 9c are provided, the switch 9 is provided in the base unit 1 and the switches 9a, 9b, and 9c are connected to the CPU 14. Can of course be disabled. in this case,
By the switches 9a, 9b, 9c provided on the base unit 1,
Even if wireless communication with the slave unit 3 is disabled, the master unit 1 can be used as a telephone if a standard telephone function is provided in parallel with the outside line of the master unit 1.

[0021]

As described above, according to the present invention, the switch operated by the unauthorized decomposition detecting means is switched between the CPU and the CP.
IDRO for storing the ID numbers of the CPU and the master unit and the slave unit,
M, the power supply is not supplied to the CPU or the CPU cannot read the ID number from the ID ROM even if both cases are disassembled and modified. And wireless communication between the child device and
Unauthorized use due to disassembly for the purpose of modification can be prevented. In addition, since the state of the switch operated by the unauthorized disassembly detection means is monitored by the CPU, wireless communication between the master unit and the slave unit can be disabled by the CPU depending on the state of the switch. Unauthorized use due to disassembly for the purpose can be prevented.

The unauthorized disassembly detecting means includes a switch lever for operating the switch, a lock mechanism for locking the switch lever, and a lock mechanism for unlocking the lock mechanism by contacting the switch lever in conjunction with opening and closing of the case. When the two cases are disassembled, the switch lever is kept released from the lock mechanism when the two cases are disassembled. Wireless communication with the machine remains disabled, and unauthorized use due to disassembly for the purpose of modification can be prevented. On the other hand, when disassembling both cases for the purpose of maintenance, maintenance, etc., when combining both cases again, if the switch lever is locked by the lock mechanism, the switch can be restored and used as a wireless telephone device, , Maintenance is possible. In addition, since the engaging rod is integrally formed on the bottom surface of the battery housing portion of the other case close to the one case on which the unauthorized disassembly detecting means is mounted, the length of the engaging rod can be shortened. And the damage can be prevented.

[Brief description of the drawings]

FIG. 1 is a block diagram of a cordless telephone device according to the present invention.

FIG. 2 is a partially cutaway side view of a slave unit of the cordless telephone device according to the present invention.

FIG. 3 is an enlarged perspective view, partly broken away, showing an operation of an unauthorized disassembly detecting means of the cordless telephone device according to the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 master unit 3 slave unit 9 unauthorized disassembly detection means 9a switch 9b switch 9c switch 32 CPU 34 IDROM 36 power supply 50 lower case 70 upper case 71 battery storage unit

Claims (5)

(57) [Claims] In a cordless telephone device for performing wireless communication between a base unit and a slave unit each having a built-in wireless function, the base unit and the slave unit can be divided into a lower case and an upper case. In a cordless telephone device provided with at least one of the master unit and the slave unit, an unauthorized disassembly detection unit that detects that both cases are divided ,
The switches operated by the unauthorized disassembly detection means are set to CPU and C
A cordless telephone device interposed between a power supply unit that supplies power to a PU . 2. The cordless telephone device according to claim 1,
And the switch operated by the unauthorized disassembly detecting means is set to CP.
U and the IDROM that stores the ID numbers of the master unit and the slave unit.
Cordless, characterized by being arranged on the data line that continues
Telephone equipment. 3. The cordless telephone device according to claim 1,
And the switch operated by the unauthorized disassembly detecting means is set to CP.
Connected to U and let CPU monitor switch status
A cordless telephone device characterized by the above-mentioned. 4. The cordless telephone device according to claim 1,
And the unauthorized disassembly detection means includes a switch for operating the switch.
Lock lever and lock to lock this switch lever
Mechanism and the switch lever in conjunction with the opening and closing of the case.
An engaging rod that comes into contact with and releases the lock with the lock mechanism
A cordless telephone device characterized by comprising: 5. The cordless telephone according to claim 4,
The engagement rod to the bottom of the battery compartment of the upper case.
A roadless telephone device characterized by having a body formed.