JPH09270836A - Communication terminal equipment and power supply equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To extend the application of the communication terminal equipment, by providing a radio reception function in an attachable/detachable power supply section thereby using the communication terminal equipment for a radio receiver. SOLUTION: A battery pack 20 is connected to a portable telephone set main body, and power is supplied from a secondary battery 12 in the battery pack 20. Then a radio reception circuit 24 is provided in the inside of the battery pack 20. The radio reception section 24 receives a sound broadcast wave, such as AM or FM broadcast programs and receives power from the secondary battery 21. However, a power switch 29 as connected between the secondary battery 21 and the radio reception section 24, and only when the power switch 29 is closed, is the power supplied. Furthermore, a speaker 25 for radio sound output, an antenna 26 for radio broadcast reception, a sound volume control variable resistor 27, and a tuning volume adjustment variable resistor 28 are connected to the radio reception section 24, and they are contained in the battery pack 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication terminal such as a mobile phone and a wireless information terminal, and a power supply device attached to the communication terminal.

[0002]

2. Description of the Related Art In recent years, various types of wireless telephones (hereinafter referred to as mobile telephones) which have a relatively small size for portable use have been developed. This mobile phone is connected to a telephone line by performing wireless communication with a predetermined base station and can talk with a desired partner. In this case, power is supplied from a battery (generally a secondary battery) in a power supply device (hereinafter referred to as a battery pack) attached to a mobile phone to a communication circuit in the phone to operate.

Also, in communication terminals other than mobile phones, those having a relatively small size for portable use generally have a battery pack attached so that power is supplied from a secondary battery in the battery pack. There is.

[0004]

By the way, as a battery pack in which these communication terminals are used, a battery pack prepared exclusively for each terminal device is used, and the battery pack is not generally versatile. Therefore, even if the user has a battery pack for each communication terminal, the battery pack can be used only for a communication terminal suitable for each, and cannot be used as a power source for other purposes.

A communication terminal such as a mobile phone is generally carried by each user at all times so that a call can be made immediately when a call is made. It is often a relatively short period of time, and is generally unused for longer periods of time. However, it cannot be used for other purposes except during a call.

On the other hand, among communication systems that have been put to practical use as mobile phones, wireless telephones having a relatively limited service area such as a personal handyphone system (PHS) are available. System exists. In the case of such a system, even if the mobile phone used in this system is called, there is a high possibility that it is not in the service area, and there are many cases where the call cannot be made. Therefore, a user of a mobile phone of such a system has an individual calling device called a pager device or a pager at the same time, and uses the system of the individual calling device when the wireless telephone system cannot make a call. It is being done so that it can be surely called. However, carrying a plurality of communication devices such as a mobile phone and a calling device is inconvenient for the user of the mobile phone.

In view of the above point, the present invention has an object to enable effective utilization of a communication terminal and a power supply device used for the communication terminal.

[0008]

In order to solve such a problem, the present invention is to incorporate various electronic equipments into a power supply unit detachably attached to a communication terminal.

According to this structure, the communication terminal is used in a state where the power supply unit is attached to the communication terminal, so that the application of the communication terminal is expanded.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS.

In this example, the present invention is applied to a battery pack attached to a mobile phone for wireless communication with a base station provided as a radio telephone system. The mobile phone is attached to this mobile phone. The structure of the battery pack is shown in FIG.

First, the structure of the mobile phone will be described. The mobile phone main body 10 is provided with an antenna 11, which is connected to a high frequency section 12, and the high frequency section 12 modulates transmission data by a predetermined method. At the same time, this modulated signal is frequency-converted into a predetermined transmission frequency and wirelessly transmitted from the antenna 11. Further, the high frequency section 12 converts a signal of a predetermined frequency received by the antenna 11 into an intermediate frequency signal, and demodulates the intermediate frequency signal by a predetermined method to obtain received data.

A transmission / reception data processing unit 13 is connected to the high frequency unit 12, and the transmission data created by the transmission / reception data processing unit 13 is supplied to the high frequency unit 12.
The reception data supplied from the high frequency unit 12 is received and processed in the transmission / reception data processing unit 13.

The following processing is performed to create transmission data in the transmission / reception data processing unit 13. That is, an analog audio signal supplied from the analog audio processing unit 14 (this analog audio signal is obtained by processing the audio signal picked up by the microphone 16 in the processing unit 14) is digital audio compressed and encoded by a predetermined method. Data. And
Control data supplied from the controller 17 and synchronization data generated in the transmission / reception data processing unit 13 are added to the digital audio data to form data having a predetermined slot configuration, and the data having the slot configuration is transmitted. Data.

Further, as the reception processing of the reception data in the transmission / reception data processing section 13, the digital voice data and the control data included in this reception data are extracted. Then, the extracted digital audio data is converted into an analog audio signal and supplied to the analog audio processing unit 14. Further, the extracted control data is supplied to the controller 17.

Then, in the analog voice processing unit 14, the analog voice signal supplied from the transmission / reception data processing unit 13 is subjected to analog voice processing such as amplification, and the speaker 15 is processed.
It is supplied to and is made to sound. Then, the voice signal picked up by the microphone 16 is subjected to analog voice processing by the analog voice processing unit 14 and supplied to the transmission / reception data processing unit 13.

The processing in the transmission system and the reception system is performed under the control of the controller 17, which is a microcomputer for controlling each operation of the mobile phone. The controller 17 is supplied with operation information of a plurality of keys 18 arranged in a predetermined state on the main body 10.
Further, a display unit 19 composed of a liquid crystal display panel or the like is connected to the controller 17, and the controller 1
It is possible to display numbers, characters, figures, etc. on the display unit 19 under the control of 7.

When the controller 17 determines that there is an incoming call to this mobile phone based on the received control data, the controller 15 controls the speaker 15 (or a dedicated speaker for ringing sound) to determine a predetermined value. The ringtone of the tone is output. However, by setting the mode by key operation or the like, it is possible to prevent the ringing tone from sounding at the time of an incoming call. When the controller 17 discriminates the incoming call, an incoming call response signal indicating that the incoming call is to be answered is processed by the transmission / reception data processing unit 13 and the high frequency unit 12 under the control of the controller 17, and a specific control data Causes the base station to transmit on a frequency.

A battery pack 20 is connected to the mobile phone body 10, and the battery pack 20 is connected to the battery pack 20.
Power is supplied from the secondary battery 21 inside. That is, as shown in FIG. 2, the mobile phone body 1 of this example
Back of 0 (side opposite to the side where the keys 18 are placed)
The battery pack 20 is detachably attached to the lower part of the. In FIG. 2, the mechanism for connecting the battery pack 20 is omitted.

As shown in FIG. 1, a secondary battery 21 is arranged inside the battery pack 20 in a predetermined state, and the power source of a predetermined voltage discharged from the secondary battery 21 is the battery pack. The mobile phone body 10 is connected via the connection terminals 22 and 23 (see FIG. 2) exposed on the surface of the mobile phone 10.
It is supplied to each circuit inside so that each circuit operates. Therefore, when the battery pack 20 is not attached, or even when the battery pack 20 is attached, the portable telephone does not operate when the remaining charge of the secondary battery 21 inside is small.

The battery pack 20 of this embodiment has a radio receiver 24 inside. This radio receiver 24
Receives audio broadcasting waves such as AM broadcasting and FM broadcasting, and is supplied with power from the secondary battery 21, as shown in FIG. However, a power switch 29 is connected between the secondary battery 21 and the radio receiver 24, and power is supplied only when the power switch 29 is in the ON state.

A speaker 25 for outputting radio sound, an antenna 26 for receiving radio broadcast, a volume control 27, and a tuning control 28 are connected to the radio reception section 24, each of which is connected to the radio reception section 24. It is stored in the battery pack 20.

FIG. 3 shows the stored state. In the battery pack 20 of this example, three cylindrical secondary batteries (nickel hydrogen battery, lithium ion battery, etc.) are arranged side by side. By connecting two secondary batteries in series,
It functions as a secondary battery 21 that can obtain a predetermined voltage. A circuit board 24a in which a circuit that constitutes the radio receiving section 24 is assembled is arranged in a space beside the three secondary batteries arranged side by side. in this case,
The circuit board 24a has a surface 20 that is connected to the mobile phone body.
It is arranged at an angle of about 45 ° with respect to a so that the space inside the battery pack 20 is effectively utilized.

Then, the side surface 20b of the battery pack 20.
A power switch 29 and volumes 27, 28 are arranged in the. Further, the speaker 25, which is configured to be relatively thin, is attached in close contact with the surface 20c (that is, the surface opposite to the surface 20a) exposed to the outside when attached to the main body of the mobile phone.

Although not shown in the circuit of FIG. 1, the circuit board 24a is also provided with a circuit for controlling charging / discharging of the secondary battery 21 and a protection circuit for charging / discharging.

With the battery pack 20 configured as described above, when the secondary battery 21 is charged, the switch 29 is turned on and the volume 27, 2 is turned on.
By adjusting 8, the radio broadcast of a predetermined frequency functions as a radio receiver output from the speaker 25.

Therefore, when the battery pack 20 is attached to the mobile phone body 10, the mobile phone is operated by the power source supplied from the secondary battery 21 in the battery pack 20, and the mobile phone is also a radio receiver. It will also function as a mobile phone, expanding the applications of mobile phones. In this case, since the mobile phone body side does not perform any processing for receiving the radio broadcast, the mobile phone body side does not need any circuit for radio reception, and the mobile phone body that has been conventionally used can be used as it is. Can be used.

Further, the battery pack 20 alone removed from the mobile phone body 10 also functions as a radio receiver. Therefore, for example, when a spare battery back is prepared, the spare battery back 20 is used as a radio receiver. It becomes possible to do.

The power switch 29 may also be used as another switch required by the radio receiver, such as a reception band changeover switch. In addition, the battery pack 20 is provided with the minimum necessary switches, and the output volume adjustment function and the reception frequency adjustment function are omitted, so that reception at a specific volume or reception at a specific frequency is performed. Is also good. Further, instead of providing the speaker in the battery pack 20, an earphone jack is provided to allow the battery pack 20 to be installed.
You may connect an earphone to.

Next, a second embodiment of the present invention will be described with reference to FIG. In FIG. 4 showing the configuration of the second embodiment, parts corresponding to those of FIGS. 1 to 3 described in the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

In this example, the secondary battery 31 is arranged in a predetermined state in the battery pack 30 connected to the mobile phone body 10 ', and the radio receiving section 34 is arranged in the battery pack 30 for radio broadcasting. It is made possible to receive. Here, in the case of this example, the volume adjustment and the reception frequency adjustment at the time of receiving the radio broadcast can be performed by the predetermined key 18 on the side of the mobile phone body 10 ', and the received voice of the radio broadcast is The output is made from the speaker 15 on the side of the mobile phone body 10 '.

That is, in the battery pack 30 of this example, the connection terminals 35 and 3 are provided in addition to the connection terminals 32 and 33 for supplying power.
6,37. Then, the connection terminal 35 connects the radio receiver 34 to the controller 17 on the telephone side, and the controller 17 controls the reception frequency and the like at the radio receiver 34. Further, the signal line drawn from the antenna 11 on the telephone side via the antenna duplexer 11 a is connected to the antenna connection section of the radio reception section 34 via the connection terminal 36. Furthermore, the radio receiver 34
The audio signal output section of is connected to the analog audio processing section 14 via the connection terminal 37, and the audio signal output from the radio receiving section 34 is subjected to analog audio processing such as amplification by the analog audio processing section 14, It is output from the speaker 15. In this case, the controller 17 controls the amplification state and the like in the analog audio processing unit 14.

When the frequency of the radio broadcast is adjusted by operating the key 18 arranged on the main body 10 'of the mobile phone, the controller 17 supplies the control data corresponding to the radio receiving section 34 to the radio receiving section. At 34, the corresponding frequency is received. At this time, the controller 1
The reception frequency may be displayed on the display unit 19 under the control of 7. Then, with respect to the volume output from the speaker 15, the volume is adjusted by adjusting the level in the analog audio processing unit 14 under the control of the controller 17 based on the operation of the key 18.

The antenna duplexer 11a is composed of, for example, a filter or the like, and a signal in a frequency band (for example, several hundreds of megahertz to several GHz) used for communication in a mobile phone receives the antenna 11 and the high frequency part 12. And a frequency band in which a radio broadcast wave exists (for example, several hundreds k to 100M).
A signal of about Hz) is configured to pass from the antenna 11 to the terminal 36 (that is, the radio receiving unit 34) side.

The portable telephone 10 'used in this example.
Is the same as the mobile phone 10 connected in the first embodiment, except for the above-mentioned configuration related to radio reception.

When the battery pack 30 of the present embodiment thus constructed is connected to the mobile phone body 10 ',
A radio receiver is built into the mobile phone,
The applications of mobile phones are expanding. In the case of the present example, the keys for setting the reception frequency, the speaker, and the like provided in the main body of the mobile phone are used, so that the configuration on the battery pack 30 side can be simplified accordingly.
Further, since the antenna 11 included in the mobile phone is also used as an antenna for radio reception, an antenna that is larger and has higher reception sensitivity than the antenna in the battery pack can be used, and the reception sensitivity of radio broadcasting can be improved. Can be higher.

Further, control of radio reception as in this example
By performing the operation with the controller 17 of the mobile phone body 10 ', it becomes possible to control radio reception according to the usage state of the mobile phone. For example, when an incoming call is received by a mobile phone during radio reception, control such as interruption of radio broadcast reception becomes possible.

The power switch 38 connected between the secondary battery 31 and the radio receiver 38 may be arranged on the side surface of the battery pack as in the case of the first embodiment. A switch electrically controlled by the control of 17 may be used.

Next, a third embodiment of the present invention will be described with reference to FIGS. 5 and 6 showing the configuration of the third embodiment, FIG. 1 described in the first embodiment is used.
The parts corresponding to those in FIG. 3 are designated by the same reference numerals, and detailed description thereof will be omitted.

In this example, the secondary battery 41 is arranged in a predetermined state in the battery pack 40 connected to the mobile phone body 10, and the incoming call notification means for notifying an incoming call by vibration is arranged in the battery pack 40. It is a thing.

That is, the secondary battery 41 is arranged in the battery pack 40 in a predetermined state, and the power source of a predetermined voltage discharged from the secondary battery 41 is exposed to the connection terminal 42 on the surface of the battery pack 40. , 43, and is supplied to each circuit in the mobile phone main body 10 to activate each circuit.

The battery pack 40 of this example is provided with a specific signal receiving section 44 inside, and power is supplied from the secondary battery 41 via the power switch 45.
The specific signal receiving unit 44 receives a signal in a specific frequency band from the signals received by the small antenna 46 incorporated in the battery pack 40, and determines a specific code included in the received signal. It is a circuit that performs processing. Here, the frequency received by the receiving unit 44 is the transmission frequency of the control signal (incoming call response signal) transmitted from the mobile phone to the base station side when the mobile phone receives an incoming call, The code to be discriminated is a code transmitted as a response signal of this incoming call (hereinafter referred to as an incoming call response signal). The receiving sensitivity of the receiving unit 44 is set so that only the incoming call response signal transmitted from a very close distance can be identified.

When the specific signal receiving section 44 determines the incoming call response signal, the vibrator 47 connected to the specific signal receiving section 44 is driven for a predetermined time. The vibrator 47 is composed of a motor 47a that is operated by a power source from the secondary battery 41 and a rotating body 47b that is eccentrically rotated by the drive of the motor 47a (see FIG. 6 for both). The rotation causes the housing of the battery pack 40 to vibrate. The vibrator 4
7, a strength / weakness changeover switch 48 is connected, and the vibration state can be adjusted to three stages, for example, weak, medium, and strong by switching operation of this switch 48.

Here, FIG. 6 shows the storage state in the battery pack 40. In the battery pack 40 of this example, three cylindrical secondary batteries (nickel hydrogen battery, lithium ion battery, etc.) are arranged side by side. They are arranged, and by connecting the three secondary batteries in series, they function as the secondary battery 41 that can obtain a predetermined voltage. And this 3
A circuit board 44 in which a circuit configuring the specific signal receiving section 44 is assembled in a space beside the secondary batteries arranged side by side.
a is arranged. In this case, the circuit board 44a is arranged at an angle of about 45 ° with respect to the surface 40a connected to the main body of the mobile phone, so that the space inside the battery pack 40 is effectively utilized.

A motor 47a and a rotating body 47b are arranged in a space adjacent to the circuit board 44a,
The battery pack 40 itself is arranged so that it can be vibrated. In this case, the power switch 45 and the strength changeover switch 48 are integrally arranged on the side surface. That is, when the switches 45 and 48 are moved from the off state by one step, they are set to vibrate weakly, and by further moving the switches by one step and two steps, the medium and strong vibration states are set. There is.

Although not shown in the circuit of FIG. 5, the circuit board 44a is also provided with a circuit for controlling charging / discharging of the secondary battery 41 and a protection circuit for charging / discharging.

The battery pack 40 having the above structure
By attaching the to the mobile phone main body 10, the mobile phone of this example can perform a vibration call process called a vibrator call as a call process at the time of an incoming call. That is, when the place where the person who has the mobile phone is the place where the ringing tone is not preferable, the mode setting for prohibiting the output of the ringing tone is performed on the mobile phone body 10 side. Then, the power switch 45 of the battery pack 40 is turned on to stand by.

By doing so, when an incoming call is received by this portable telephone, an incoming call response signal for responding to the incoming call is transmitted to the base station. It is determined by the specific signal receiving section 44 in the back 40,
The vibrator 47 comes to vibrate. Therefore, the person who carries the mobile phone can recognize the incoming call not by the sound but by the vibration, and can detect the incoming call without disturbing the surroundings.

In this case, the electrical connection between the battery pack 40 and the mobile phone body 10 in this example is as follows.
Since there is no need to transmit data for incoming call detection, etc., only connection via the power supply connection terminals 42 and 43, no special circuit is required on the mobile phone main body side, and the conventional mobile phone Can be used to add the function of making a vibrator call.

Note that the battery pack 40 of the present example, even when it is not attached to the mobile phone body 10 alone (a different battery pack is attached to the mobile phone body 10), notifies the incoming call by vibration. Functions as a notification device. However, in view of the setting of the receiving sensitivity in the specific signal receiving unit 44, it functions as an incoming call notification device only when it is placed very close to the mobile phone.

Further, in the third embodiment, the incoming call is announced by vibration, but the incoming call may be announced by other processing. For example, the mobile phone body 10
A ringing tone different in tone color, volume, etc. from the ringing tone output from may be output. Alternatively, the incoming call may be notified by light emission. Also, when notifying by vibration, the vibration state as described above may be switched not only by the strength and weakness but also by the vibration cycle.

Next, a fourth embodiment of the present invention will be described with reference to FIG. In FIG. 7 showing the configuration of the fourth embodiment, parts corresponding to those in FIG. 1 described in the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

In this example, the secondary battery 41 is arranged in a predetermined state in the battery pack 50 connected to the mobile phone body 10, and an individual call signal receiving section called a pager device is provided in the battery pack 50. It is provided so that a call can be announced by a communication system other than the mobile phone.

That is, the secondary battery 51 is arranged in a predetermined state in the battery pack 50, and the power source of a predetermined voltage discharged from the secondary battery 51 is connected to the connection terminal 52 exposed on the surface of the battery pack 50. , 53, and is supplied to each circuit in the mobile phone main body 10 to activate each circuit.

The battery pack 50 of this embodiment is provided with an individual call signal receiving section 54 inside, and the power switch 5
The power is supplied from the secondary battery 51 via the battery 5. The individual call signal reception unit 54 receives a signal in a specific frequency band from the signals received by the small antenna 56 built in the battery pack 50, and determines a specific code included in the received signal. This is a circuit for performing the processing. Here, the frequency received by the receiving unit 54 is a predetermined transmission frequency of the individual calling signal, and a specific identification code included in the received frequency (a unique identification code set in the calling signal receiving unit 54 is included. (Identification code) is determined.

Then, when the identification code set in the receiving section 54 is discriminated, the vibrator 57 connected to the individual call signal receiving section 54 is driven for a predetermined time. This vibrator 57 is, for example, similar to the third embodiment described above, a motor operated by a power source from the secondary battery 51,
It is composed of a rotating body that is eccentrically rotated when driven by this motor, and vibrates the housing of the battery pack 50. Note that the vibrator 57 is connected to a strength / weakness changeover switch 58, and the vibration state can be adjusted to three levels, for example, weak, medium, and strong by the switching operation of the switch 58.

The battery pack 50 having the above structure
By attaching the to the mobile phone body 10, the mobile phone of the present example can receive a call by the communication system to which the mobile phone belongs and a call by the communication system to which the individual calling device configured in the battery pack 50 belongs. Like Therefore, for example, when you are outside the service area of the communication system to which the mobile phone belongs,
It becomes possible to receive a call by the individual calling device configured in the battery pack 50, and the range of use as a communication terminal is expanded. In this case, in the present example, the function as the individual calling device can be newly added by simply using the conventional mobile phone and exchanging only the battery pack for the present example.

The battery pack 50 of this example functions as an individual calling device even when it is not attached to the mobile phone body 10 and is a single unit.

Further, in the fourth embodiment, the call is notified by vibration, but the call process may be performed by another process. For example, the calling process may be performed by outputting some sound or emitting light. Alternatively, a plurality of calling processes such as sound and vibration may be performed at the same time.

Further, in the above-mentioned embodiment, the calling process is performed only when the calling signal is received.
For example, the display unit such as a liquid crystal display panel is attached to the battery pack 5
It may be set to 0, and when the calling signal is received, if there is an accompanying message, the message may be displayed on the display unit by letters or numbers. If message data can be transmitted to the mobile phone body 10 side, the message may be displayed on the display unit 19 of the mobile phone body 10 side. Also, the battery pack 5
Instead of the antenna 56 in 0, the antenna 11 included in the mobile phone 10 may be used for receiving the individual call signal as in the second embodiment.

As the individual call signal to be discriminated in the battery pack 50, in addition to the system for discriminating a signal transmitted by using a dedicated frequency band for the individual call signal, a broadcast wave of FM broadcast or the like is used. It may be a system that determines an individual call signal as data transmitted using a subcarrier.

Next, a fifth embodiment of the present invention will be described with reference to FIGS. 8 and 9. 8 and 9 showing the configuration of the fifth embodiment, FIG. 1 explained in the first embodiment.
The parts corresponding to those in FIG. 3 are designated by the same reference numerals, and detailed description thereof will be omitted.

In this example, the secondary battery 61 is arranged in a predetermined state in the battery pack 60 connected to the mobile phone body 10, and the illuminating means functioning as a flashlight is arranged in the battery pack 60. is there.

That is, the secondary battery 61 is arranged in a predetermined state inside the battery pack 60, and the power source of a predetermined voltage discharged from the secondary battery 61 is exposed at the connection terminal 62 on the surface of the battery pack 60. , 63 to be supplied to each circuit in the mobile phone body 10 so that each circuit operates.

In the battery pack 60 of this embodiment, a light bulb 65 that lights up with a DC low voltage signal is arranged inside, and power is supplied from the secondary battery 61 via the power switch 64.

FIG. 9 shows the arrangement of the light bulb 65 and the circuit components around the light bulb 65. As shown in FIG.
Three cylindrical secondary batteries (nickel-hydrogen battery, lithium-ion battery, etc.) are arranged side by side.
Predetermined voltage can be obtained by connecting secondary batteries in series 2
It functions as the secondary battery 61. And, in the space beside the three secondary batteries arranged side by side,
A circuit board 64a to which the power switch 64, a light bulb socket 66, and the like are connected is arranged. In this case, the circuit board 64a is approximately 4 times larger than the surface connected to the mobile phone body.
It is arranged to be inclined by 5 ° so that the space inside the battery pack 60 is effectively utilized.

The light bulb socket 66 is connected to one end of the circuit board 64a, and the light output from the light bulb 65 attached to the socket 66 is supplied to the battery pack 6.
It is radiated to the outside from the through holes 60a and 60b provided on the two surfaces of No. 0. The through holes 60a and 60b are closed with a transparent resin or glass, and an optical component such as a lens (not shown) is arranged near the light bulb 65. Further, it is preferable that the surface provided with the through holes 60a and 60b through which light is output is a surface exposed to the outside when the battery pack 60 is attached to the mobile phone body 10.

Although not shown in the circuit of FIG. 8, the circuit board 64a is also provided with a circuit for controlling charging / discharging of the secondary battery 61 and a protection circuit for charging / discharging.

The battery pack 60 constructed in this way
By attaching the to the mobile phone body 10, the mobile phone of the present example also functions as a flashlight, and can be used as lighting means at night or in an emergency. Further, when the battery pack of the mobile phone is replaced in a dark place such as at night, by turning on the power switch 64 to light up the surroundings of the mobile phone,
Very easy replacement work.

When a battery having a memory effect such as a nickel-cadmium battery or a nickel-hydrogen battery is used as the secondary battery 61 incorporated in the battery pack 60, the light bulb 65 is used as a discharge resistor. Is also good. That is, for example, the power switch 64 can be set to a discharge mode in addition to on and off, and when the discharge mode is set, the control circuit of the secondary battery 61 (the circuit board 6).
4a), the light bulb 65 may be connected to the secondary battery 61 to discharge the secondary battery 61 until the remaining charge of the secondary battery 61 reaches a predetermined capacity. Alternatively, instead of discharging by switch operation, discharging may be automatically performed before charging.

In each of the above-described embodiments, the example is applied to the battery pack attached to the communication terminal connected to the mobile telephone and the wireless telephone line used, but it is attached to various other communication terminals. Of course, it can be applied to a battery pack.

Further, in each of the embodiments, the battery pack in which the secondary battery is mounted is used, but it is also applicable to the battery pack in which the primary battery (dry cell etc.) is mounted.

[0073]

According to the communication terminal of the present invention, since the detachable power supply unit has the radio receiving function, the communication terminal can be used as a radio receiver, the application as a communication terminal is expanded, and the radio reception is performed. The power supply at this time can be supplied from the battery in the power supply unit, and if a power supply is prepared as a communication terminal, radio reception becomes possible.

Further, in this case, the antenna provided for communication in the communication terminal main body is connected to the radio receiving section in the power supply section to be used as a radio receiving antenna, and the sound received by the radio receiving section is obtained. Since the signal is output from the speaker in the main body of the communication terminal, excellent radio reception using the communication terminal can be achieved by newly providing only the reception processing circuit on the power supply unit side.

Further, in the above-mentioned case, by displaying the operating state of the radio receiving section in the power supply section on the display section in the communication terminal main body, various displays as a radio such as the reception frequency can be displayed in a dedicated display section. It becomes possible without providing.

Further, according to the power supply device of the present invention, since the radio receiving unit is provided, the communication terminal becomes a communication terminal having a radio receiving function only by connecting the power supply device to the communication terminal, and the power supply is provided. The application as a communication terminal is widened only by replacing the supply device with that of the present invention.

According to the communication terminal of the present invention, when the power supply unit has the incoming call notification means, the means for notifying the incoming call of the communication terminal is integrated with the communication terminal, and the incoming call notification means is carried separately. Compared with, the portability is improved and the power source can be shared.

Further, as an incoming call notification means in this case, a receiving section for receiving an incoming call response signal wirelessly transmitted from the communication terminal and a housing of the power supply section are vibrated when the incoming call response signal is received by this receiving section. By providing the vibrating section, it is possible to effectively notify an incoming call to the communication terminal by vibrating.

Further, according to the power supply device of the present invention, by having the incoming call notification means, the communication terminal becomes a communication terminal provided with the predetermined incoming call notification means only by connecting the power supply device to the communication terminal. By simply replacing the power supply device with that of the present invention, the application as a communication terminal is expanded.

Further, according to the communication terminal of the present invention, since the power supply unit has the illuminating means, the communication terminal can be used as an illuminating device at night or in some emergency, and the application of the communication terminal is widened.

Further, according to the power supply device of the present invention, by having the illuminating means, the communication terminal becomes a communication terminal equipped with the illuminating means only by connecting the power supply device to the communication terminal, and the power supply device is provided. By simply replacing it with the one of the present invention, the application as a communication terminal is expanded, and the power supply device alone can be used as an illumination device.

Further, according to the communication terminal of the present invention, since the power supply unit has the individual selection signal receiving means, the individual selection signal receiving device and the communication terminal are integrated, the portability is improved, and the power is supplied. It has the effect of being shared by both devices.

Further, according to the power supply device of the present invention, by having the individual selection signal receiving means, the communication terminal is provided with the individual selection signal receiving means only by connecting the power supply device to the communication terminal. Therefore, by simply replacing the power supply device with that of the present invention, the application as a communication terminal is expanded, and the power supply device alone can be used as an individual selection signal receiving device.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a first embodiment of the present invention.

FIG. 2 is a perspective view showing a configuration of a terminal side of the first embodiment.

FIG. 3 is a perspective view showing the battery pack of the first embodiment with a part thereof cut away.

FIG. 4 is a configuration diagram showing a second embodiment of the present invention.

FIG. 5 is a configuration diagram showing a third embodiment of the present invention.

FIG. 6 is a perspective view showing a battery pack of a third embodiment with a part thereof cut away.

FIG. 7 is a configuration diagram showing a fourth embodiment of the present invention.

FIG. 8 is a configuration diagram showing a fifth embodiment of the present invention.

FIG. 9 is a perspective view showing a battery pack of a fifth embodiment, partially broken away.

[Explanation of symbols]

10,10 'Mobile phone body 11,26,46,5
6 antennas, 11a antenna duplexer, 12 high frequency section, 13 transmission / reception data processing section, 14 analog voice processing section, 15 speaker, 16 microphone, 17 controller, 18 key, 19 display section, 20, 30,
40, 50, 60 Battery packs 21, 31, 4
1, 51, 61 secondary battery, 22, 23, 32, 33,
35, 36, 37, 42, 43, 52, 53, 62, 6
3 connection terminals, 24, 34 radio receiver, 24a,
44a, 64a circuit board, 25 speaker, 27 volume control, 28 tuning volume, 2
9, 45, 55, 64 Power switch, 44 Specific signal receiving section, 47, 57 Vibrator, 48, 58 Strength change switch, 54 Individual call signal receiving section, 65
light bulb

Claims (11)

[Claims] 1. A communication terminal having a detachable power supply unit, wherein the power supply unit has a radio receiving function. 2. An antenna provided for communication in a communication terminal main body is connected to a radio receiving section in the power supply section to be used as a radio receiving antenna, and an audio signal received by the radio receiving section is received. The communication terminal according to claim 1, wherein the speaker is output from a speaker in the communication terminal body. 3. The communication terminal according to claim 1, wherein the operating state of the radio receiving section in the power supply section is displayed on a display section in the communication terminal body. 4. A power supply device attachable to and detachable from a communication terminal, comprising a radio receiver. 5. A communication terminal having a detachable power supply unit, wherein the power supply unit has an incoming call notification means of the communication terminal. 6. A receiving unit for receiving an incoming call response signal wirelessly transmitted from the communication terminal, as the incoming call notification means,
The communication terminal according to claim 5, further comprising a vibrating unit that vibrates a housing of the power supply unit when the receiving unit receives the incoming call response signal. 7. A power supply device attachable to and detachable from a communication terminal, comprising an incoming call notification means. 8. A communication terminal having a detachable power supply unit, wherein the power supply unit has an illumination means. 9. A power supply device attachable to and detachable from a communication terminal, comprising an illuminating means. 10. A communication terminal having a detachable power supply unit, wherein the power supply unit has an individual selection signal receiving means. 11. A power supply device attachable to and detachable from a communication terminal, comprising: an individual selection signal receiving means.