JPH0555979A - Portable telephone set - Google Patents

Abstract

PURPOSE:To deal with accidental erasure of information in a volatile storage device due to a worn battery without need of a backup power supply by providing an external storage device storing an identification number and an abbreviation number or the like to the telephone set separately from the portable telephone set main body. CONSTITUTION:An external storage device 15 is provided to the telephone set separately from the portable telephone set main body A. An identification number of the portable telephone set and a manufacture number and an abbreviation number written in a one-time ROM 11 are stored in a memory 16 of the storage device 15. When power of a battery 14 of the main body A is worn, the information written in a RAM 12 is erased. However, after the battery 14 is charged again, when the main body A, an interface 13, and an interface 17 of the storage device 15 are connected and a load instruction is entered by using a key pad 6, the content of the memory 16 of the storage device 15 is written in the RAM 12 of the main body A.

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 having a storage device inside a mobile station of a cellular telephone system.

[0002]

2. Description of the Related Art In recent years, the development of cellular phones such as cellular phone systems has been remarkable, and the number of users has been increasing.

A mobile phone device of a conventional cellular phone system will be described below. FIG. 3 is a block diagram of a mobile phone device of a conventional cellular phone system, where 51 is an antenna section for transmitting and receiving radio waves, 52 is a radio section for transmitting and receiving signals, and modulation and demodulation, 53 is an expander, compander, A voice processing unit that processes a voice signal, such as a compressor, 54 is a data processing unit that processes a dial digit signal, 55 is a control unit that controls the entire telephone device, and 56 is an external telephone number or call command. Etc., a keypad part for inputting, etc., 57 is a display part for displaying information such as input from the keypad part and received electric field strength, 58 is a microphone for inputting voice, 59 is a speaker for outputting voice, 60 is a program And a memory that stores identification numbers and speed dials used when the base station communicates with a mobile phone device that is a mobile station. 61 is a battery that is the main power source of the mobile phone. , 62 is a power supply dedicated to memory backup.

The operation of the conventional portable telephone device will be described. After the power is turned on, the device is in a state of making a call or waiting for a call according to the program written in the memory 60. When receiving a call, in the cellular telephone system, an incoming call signal is added to each mobile telephone device from the base station and transmitted. The mobile phone device compares the received identification number with its own identification number stored in the memory 60. If the identification numbers match, the mobile phone device determines that it is an incoming call to itself and sounds the ringer sound of the mobile phone device. Then, the user is notified of the incoming call. Also in the case of calling, the request for calling is made by adding the identification number to the calling request, and the base station knows from which mobile telephone device the calling request is made by the identification number. In a mobile phone device capable of registration such as speed dial, a telephone number corresponding to each speed number is stored in the memory 60, and when the user makes a call using the speed dial, the memory 30 is referred to.

Next, the memory 60 will be described. memory
60 is composed of a non-volatile memory (ROM) in which a program is written and a volatile memory (SRAM) in which an identification number, an abbreviated number, etc. are written. As shown in FIG. 3, in this case, in addition to the battery 61 for the main power supply for operating the mobile phone device in order to retain the contents of the SRAM, the power supply 62 dedicated for the backup of the SRAM.
Is equipped with. As another conventional example, SRA is used.
EEPRO that does not need a backup power supply instead of M
M is also used.

[0006]

However, in the above-mentioned conventional portable telephone device, when SRAM is used as the memory in the portable telephone device, a power source for backup is required and the portable telephone device body becomes large. In addition, there is a problem that the cost becomes high when the EEPROM is used.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems and provide a mobile phone device that does not require a backup power source or an EEPROM in the mobile phone device body.

[0008]

In order to solve the above-mentioned problems, a portable telephone device of the present invention is provided with an antenna section for transmitting and receiving radio waves and extraction and amplification of desired signals from received radio waves or transmission signals. A radio unit that performs generation and amplification, a microphone that inputs voice, a speaker that outputs voice, a voice processing unit that performs each process of a voice signal, and a data processing unit that processes a device control data signal. A first input means for inputting a telephone number and the like, a control section for controlling the entire system, and a second input means for reading information from an external storage device prepared separately from the main body of the mobile phone device,
It is provided with a volatile storage means for storing the information read by the second input means, and a power supply for supplying electric power to the apparatus.

[0009]

With the above-described structure, in the normal state, the entire system of the portable telephone device body functions by receiving the power supplied from the power source, and the volatile storage means is supplied from the first input means via the control section. Information such as an input speed dial is stored, and the information is appropriately used.

When the power of the power source is consumed, the volatile storage means cannot maintain the information storage operation and the information is erased. However, by inputting information to the storage means via the second input means by an external storage device prepared separately from the main body of the mobile phone device together with charging to the power supply or after charging to the power supply. It is possible to re-store the information in the storage means and refer to the information when the mobile phone device is operating. For this reason, it is not necessary to provide a backup power source for maintaining the memory operation of the memory means when the power source is consumed, and the shape of the mobile phone device body can be downsized. The cost can be reduced because the above is not used.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of a portable telephone device and an external storage device of a cellular telephone system according to an embodiment of the present invention.

In FIG. 1, 1 is an antenna section for transmitting and receiving radio waves, 2 is a radio section for extracting and amplifying a desired signal from received radio waves or generating and amplifying a transmission signal, 3 is an expander, compander, An audio processing unit that processes audio signals, including a compressor,
Reference numeral 4 is a data processing unit for processing dial digit signals and the like, 5 is a control unit for controlling the entire telephone device, 6 is an external telephone number input, a calling command, and a load command for reading information from an external storage device. A keypad section for inputting, 7 is a display section for displaying information such as input from the keypad section and received electric field strength, 8 is a microphone for inputting voice,
9 is a speaker for outputting sound, 10 is a ROM in which a program is written, 11 is a one-time ROM in which the serial number of the portable device is written, 12 is a RAM for storing information read from the outside, 13 is a An interface for reading information from the outside, 14 is a battery of a mobile phone. An external storage device 15 is provided separately from the mobile phone device main body A configured by the above members.

In the external storage device 15, 16 is an identification number for the base station to recognize the mobile phone and the one-time R.
A memory in which information such as a manufacturing number and abbreviated number written in the OM 11 is stored, 17 is an interface for outputting information in the memory 16, and 18 is a power supply for holding the contents of the memory 16.

The operations of the portable telephone device and the external information device configured as described above will be described below. In the normal state, the wireless unit 2, the voice processing unit 3, the data processing unit 4, the control unit 5, the keypad unit 6, the display unit 7, the microphone 8, the speaker 9, the ROM 10, and the one-time unit, which constitute the mobile phone main body A, are included. Electric power is supplied from the battery 14 to each of the ROM 11, the RAM 12, and the interface 13, and the entire system of the mobile phone device body A functions by receiving the electric power. At this time, RA
N12 stores information such as a speed dial input from the keypad unit 6 via the control unit 5, and the information is appropriately used by the control unit 5.

When the power of the battery 14 is exhausted, the RAN 12 cannot maintain the information storing operation and the information is erased. But the battery 14
The information can be re-stored by the external storage device 15 prepared separately from the mobile phone main body A after charging the battery 14 or after charging the battery 14.

That is, by connecting the interfaces 13 and 17 of the mobile phone main unit A and the external storage unit 15 and inputting a load command from the keypad 6, the external storage unit 15 is stored in the RAM 12 of the mobile phone main unit A. The contents of memory 16 are read. At this time, the serial number stored in the one-time ROM 11 is compared with the portion showing the information related to the contents of the one-time ROM 11 in the memory 17 of the external information device, and only when they match, writing to the RAM 12 is performed. As a result, the number of mobile phone bodies that can write to RAM from one external storage device is limited to one. In this configuration, when the base station of the cellular telephone system communicates with the mobile station, the information regarding the identification number for recognizing the mobile station (mobile telephone device) is also read from the external storage device 15, so that the mobile telephone device The battery of the main body A runs out and R
If the identification number written in AM12 disappears, the battery will be stored if the mobile phone device body A does not have a dedicated external storage device 15.
Since it is not possible to communicate with the base station just by charging 14,
It also has the effect of minimizing abuse during theft.

FIG. 2 shows another structure of the present invention. In FIG. 2, reference numeral 21 is an antenna section for transmitting and receiving radio waves, 22 is a radio section for extracting and amplifying a desired signal from received radio waves or generating and amplifying a transmission signal, and 23 is an expander, compander, compressor or the like. Voice processing unit for processing voice signals, 24 is a data processing unit for processing dial digit signals, 25 is a control unit for controlling the entire telephone device, 26 is an external telephone number output, a calling command, etc. Keypad section for input, 27 is a display section for displaying information such as input from the keypad section and received electric field strength, 28 is a microphone for inputting voice,
29 is a speaker for inputting voice, 30 is a ROM in which a program is written, 31 is a one-time ROM in which the serial number of the portable device is written, 32 is a RAM for storing information read from the outside, 33 is a Interface for reading information from outside and battery charging terminal,
34 is a battery of the mobile phone, 35 is a detector for detecting that the mobile phone device is attached to the charger-integrated external storage device, and 36 is a signal from 35 for turning on / off the power supply of the control unit. It is a switch. Further, 37 is a charger-integrated external storage device integrated with the charger, 38 is a memory in which information such as abbreviated number to be written in the RAM 32 is stored, 39 is an interface for outputting information in the memory 38 And a charging current output terminal of the charger, 40 is a power source for backing up the memory 38 of the charger integrated external storage device 37,
31 is a rectifier circuit that produces a direct current charging current from a commercial power source.

The operations of the portable telephone device B and the charger-integrated external storage device 37 configured as shown in FIG. 2 will be described below. When the charging terminal 33 of the mobile phone main body B is attached to the output terminal 39 of the charger integrated external storage device 37, the battery 34 is charged, and at the same time, the switch of 36 is switched by the signal of the detector 35. Is turned on. And the control unit
In the case of 25, from the output of the detector 35, the charger integrated external storage device
When it is detected that 37 is attached, the contents of the memory 38 are read and the writing to the RAM 32 is performed.

With this configuration, it becomes possible to write the information from the external storage device 37 into the RAM 30 of the mobile phone device at the same time as charging the mobile phone device body B as described above.

[0020]

As described above, according to the present invention, the RA of the portable telephone device body is eliminated even when the battery of the portable telephone device body is exhausted.
Since it is not necessary to hold the contents of M, the mobile phone device main body does not need a memory backup power supply, and the mobile phone device main body can be downsized. In addition, when compared to a mobile phone device that uses an EEPROM that does not require a backup power source as a storage device, it is an inexpensive RAM and ROM.
It is possible to provide a low-priced device because it can be configured only by itself.

[Brief description of drawings]

FIG. 1 is a block diagram of a mobile phone device and an external storage device of a cellular phone system according to an embodiment of the present invention.

FIG. 2 is a block diagram of a mobile phone device and a charger-integrated external storage device according to another embodiment of the present invention.

FIG. 3 is a block diagram of a conventional mobile phone device.

[Explanation of symbols]

 5 Control part 6 Keypad part 12 RAM 13 Interface 14 Battery 15 External storage device 16 Memory 17 Interface 18 Memory backup power supply

Claims (1)

[Claims] 1. An antenna section for transmitting and receiving radio waves,
A radio unit that extracts and amplifies a desired signal from a received radio wave or that generates and amplifies a transmission signal, a microphone that inputs a voice, a speaker that outputs a voice, and a voice processing unit that performs each process of a voice signal. , A data processing unit for processing a device control data signal, a first input means for inputting a telephone number, a control unit for controlling the entire system, and an external storage prepared separately from the main body of the mobile phone device. A portable device comprising: second input means for reading information from the device; volatile storage means for storing the information read by the second input means; and a power supply for supplying power to the device. Telephone device.