JP2000224274A - Portable telephone set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively use a small display area of a portable telephone set by using a battery display area so as to display setting of a car kit mode when the portable telephone set is mounted on a vehicle and charging in the car kit mode. SOLUTION: The portable telephone set is provided with a control means with which, when a charging state of an internal power supply 20 is detected and a set detection means 18 detects that the portable telephone set is placed on a placing section, an external speaker mode is set, a voice of a receiver is outputted to an external speaker connection section and display of power consumption of the internal power supply 20 is inhibited and when the mode is not the external speaker mode, the voice of the receiver is not outputted to the external speaker connection section and the display of the consumption of the internal power supply 20 is permitted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable telephone device which can be charged from an external power supply.

[0002]

2. Description of the Related Art When a portable telephone device is used in a vehicle,
It has been considered that hands-free communication is performed using an external speaker or an external microphone for traffic safety (Japanese Patent Application Laid-Open Nos. 10-226281 and 10-32745).
No. 3). On the other hand, when the vehicle is stopped or when the passenger uses the mobile phone, the user can also use the internal ear speaker so as to make a private call. As described above, there are an external speaker mode and an internal speaker mode in a mobile phone device that can be mounted on a vehicle. Here, the external speaker mode is a mode using an external speaker, and includes a hands-free mode and a car kit mode. The internal speaker mode is a mode in which a speaker inside the mobile phone is used, and is also referred to as a telephone mode here. The internal speakers include not only ordinary ear speakers, but also internal speakers used as surrounding people and hands-free. External speakers also include earphones.

[0003]

However, a portable communication terminal has a small display section for miniaturization, and it is difficult to display the switching state between the external speaker mode and the internal speaker mode.

[0004]

SUMMARY OF THE INVENTION The communication terminal of the present invention has been made in view of the above points. The communication terminal detects that the rechargeable battery is being charged by the charging detection means, and the device is mounted on the mounting part by the mounting detection means. When the external speaker mode is detected, the sound of the received voice is output to the external speaker connection unit as the external speaker mode, and the display of the consumption amount of the rechargeable battery is prohibited. A control unit that does not output sound to the external speaker connection unit and allows display of a consumption amount of the rechargeable battery.

[0005]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a main part of the embodiment. The communication terminal of this embodiment is a CDMA mobile phone that uses a plurality of carriers of the same frequency in the same cell.

A communication unit (1) transmits a signal from a baseband unit (3) to be described later to a base station via an antenna (2), and transmits a signal from a base station via the antenna (2). Or receive.

[0007] (3) is a baseband unit, which is CDMA
It has a processing circuit (31) and an audio codec (32).
The CDMA processing circuit (31) performs code division multiple access, scrambling, error control, and timing detection. The audio codec (32) compresses (encodes) and decompresses (decodes) audio.
Or a conversion between analog and digital, and changes the reception volume and microphone sensitivity by an internal amplifier circuit (not shown).

Reference numeral (4) denotes a speaker which is used for a telephone call to the ear, and converts the electric signal of the baseband section (3) amplified by the amplifier circuit (5) into sound. (6) is a microphone used for telephone conversation, which converts voice into an electric signal. (7) is an amplifying circuit, which amplifies the output of the microphone (6) and outputs it to the baseband unit (3).
(8) is a speaker for making a call available to surrounding people, and is provided on the back of the surface on which the ear speaker (4) is provided. The speaker (8) converts the electric signal of the baseband section (3) amplified by the amplifier circuit (9) into sound. The speaker (8) also sounds an incoming call notification.
Reference numeral (10) denotes a connection part, and an external speaker (301) of the car kit (30) and an external microphone (302) are connected via a cable (303 in FIG. 2). The external speaker (301) and the external microphone (302) are used for hands-free communication.

A switching circuit (11) is a control circuit (described later) for connecting the three respective amplifier circuits (5), (7), (9) and the connection section (10) to the baseband section (3). 11)
ON / OFF by the control of. Note that these three amplifier circuits (5), (7), and (9) have fixed gains, and cannot change the receiving sound volume or the sensitivity of the microphone.
The control of the control circuit (1
The audio codec (32) of the baseband unit (3) performs the control under the control of (2).

Reference numeral (12) denotes a control circuit composed of a microprocessor, and a ROM (1) storing an operation program.
Each part is controlled based on 3). (14) is a RAM for storing information necessary for the operation of the control circuit (12).

Reference numeral (15) denotes a liquid crystal display, which displays the amount of battery consumption or the external speaker mode in a predetermined display area (see FIGS. 5 to 7). (16) is a vibrator, which generates vibration at the time of an incoming call under the control of the control circuit (12). (17) is a voice synthesizing circuit which converts a character designated by the control circuit (12) into a voice signal.

(18) is a placement detecting means having a magnetic detecting section (181) such as a reed switch or a Hall element.
As shown in FIG. 2, a mounting portion (40) having a magnet (401) is fixed to a vehicle, and when a mobile phone device is mounted on the mounting portion, a magnetism detection unit close to the magnet (401) is provided. (1
81) detects magnetism, and the placement detection means (18) outputs a signal indicating that the placement has been made to the control circuit (12).

Numeral (19) is an input means, which is a numeric keypad (191) for inputting a telephone number, a call key (192) for starting a call, and an end key (193) for operating a call end. And

(20) is an internal power supply composed of a rechargeable battery. Reference numeral (21) denotes a connection portion for an external power supply, which is connected to an external power supply (50) (vehicle battery) via a cable (303 in FIG. 2). A switching circuit (22) switches the supply of power from the internal power supply (20) and the external power supply (50). When the ignition switch is turned on, the voltage of the external power supply (50) is applied to the connection (12), and the connection (21) outputs this to the control circuit (12). Then, the control circuit (12) supplies power to the internal power supply (2).
0) to the external power supply (50).

Next, the main operation of the present invention will be described. FIG. 3 is a flowchart showing the operation of the control circuit (12). The control circuit (12) determines whether or not the external power supply (50) is connected by the connection section (21), that is, the cable (30).
It is checked whether or not 3) is connected to the mobile phone device (S)
1). When the cable (303) is connected, an external speaker (301) and an external microphone (302) are also connected to the mobile phone device in addition to the external power supply (50).

If the external power supply (50) is not connected in step S1, the control circuit (12) causes the portable telephone device to supply the power of the internal power supply (S2). Then, the mode is set to the telephone mode for receiving a call using the internal speaker (S3).
The internal speakers include an ear speaker (4) and a surrounding speaker (8). The surrounding speaker (8) is turned on / off by operating a key (not shown). The control circuit (12) prohibits reception of the external speaker in the telephone mode. Then, as shown in FIG. 4, the control circuit (12) displays the amount of consumption of the rechargeable internal power supply in the battery display area of the display unit (15) (S4). The amount of consumption is performed in four stages as shown in FIG.

If the external power supply (50) is connected in step S1, the control circuit (12) causes the portable telephone device to supply the power of the external power supply (50) (S5). External power supply (5
By supplying 0), the internal power supply (20) is charged. The control circuit (12) checks whether or not the mobile phone device is mounted on the mounting portion (40) by the mounting detection means (18) (S).
6). If not, the process proceeds to step S3 to set the telephone mode.

If it is placed (Y in S6), a car kit mode for receiving a call using the external speaker (301) is set (S7). Then, as shown in FIG. 6, an icon indicating the car kit mode is displayed in the battery display area of the display unit (15) (S8). As shown in FIG. 7, for the reason of hardware or the simplicity of software, nothing may be displayed in the battery display area to indicate the car kit mode.

As described above, when the portable telephone device is placed in the vehicle and charged and is in the car kit mode, it is not necessary to display the amount of consumption of the internal power supply. Indicates that the mode is set. Thereby, a small display area of the mobile phone device can be used effectively.

In the above-described embodiment, when the portable telephone device is lifted from the mounting portion, the mode is switched from the car kit mode to the telephone mode, and the amount of consumption of the internal power supply is displayed even during charging. This is to inform the user that contact with the internal power supply (rechargeable dry battery) is poor due to a shock given to the mobile phone device when the mobile phone device is lifted, or that charging is poor due to other reasons. .

In the above-described embodiment, charging is continued even if the portable telephone device is lifted (even when the telephone mode is set). The present invention can be applied.

In the above-described embodiment, the external power supply and the internal power supply are switched by the switching circuit. However, the external power supply having the same voltage as the internal power supply is connected in parallel with the internal power supply without providing the switching circuit. The power supply to the inside and the charging of the internal power supply may be performed.

[0023]

As described above, when the portable telephone device is placed in the vehicle and charged and in the car kit mode,
The fact that the mode is the car kit mode is displayed using the battery display area. Thereby, a small display area of the mobile phone device can be used effectively.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a main configuration of an embodiment of the present invention.

FIG. 2 is a diagram showing a state in which the mobile phone device of the embodiment is mounted on a vehicle.

FIG. 3 is a flowchart showing a main operation of the embodiment.

FIG. 4 is a diagram showing a display of a battery display area when not in a car kit mode.

FIG. 5 is a diagram illustrating a display stage of a consumption amount of a rechargeable battery.

FIG. 6 is a diagram showing a display of a battery display area in a car kit mode.

FIG. 7 is a diagram showing another display example of FIG. 6;

[Explanation of symbols]

 Reference Signs List 4 speaker (internal: for ears) 8 speaker (internal: for surrounding people) 10 connection part (for car kit) 12 control circuit 15 display part 18 placement detection means 20 internal power supply (rechargeable battery) 21 connection part (external Power supply) 30 car kit 301 external speaker 302 external microphone 40 mounting part 50 external power supply

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5K011 DA29 HA03 HA05 HA06 JA01 LA01 5K027 AA11 AA16 BB02 FF14 FF22 GG04 HH03 5K067 AA27 BB04 EE02 FF19 FF23 KK06 KK13

Claims (1)

[Claims] A rechargeable battery that can be charged from an external power source;
Charging detection means for detecting whether or not the rechargeable battery is being charged from an external power supply; mounting detection means for detecting whether the device is mounted on a mounting portion; and displaying a consumption amount of the rechargeable battery. A display unit, an external speaker connection unit, and the charging detection unit that detects that the rechargeable battery is being charged, and that the placement detection unit detects that the device is placed on the placement unit. When the external speaker mode is set, the received voice is output to the external speaker connection unit and the display of the consumption amount of the rechargeable battery is prohibited, and when not in the external speaker mode, the received voice is output to the external speaker connection unit. And a control means for allowing the display of the amount of consumption of the rechargeable battery.