JPS6238624A - Radio communication equipment - Google Patents

Abstract

PURPOSE:To decrease the man-hour and cost required for the updating of a program by providing a programmable ROM storing a program for updating or changing a program for operation control sent from a base station so as to facilitate the updating of the function of program. CONSTITUTION:In a mobile station on automobile, in order to improve the function of program for operation control stored in advance in the programmable ROM 9, the updated program sent through an automobile radio communication line from the base station corresponding to a radio zone where the automobile resides is received and demodulated by a receiver 4 via an antenna 1 and a duplexer 2 as a data signal. Moreover, in a digital signal modulator-demodulator 7, a received demodulation signal is decoded and stored as the updated program in the ROM 9 through the data processing action by a processor 8 and a RAM 10. When the storage of the updated program to the ROM 9 is finished, a start address of a new program for control is set via the end of call processing and the state is restored to the state restarting the operation control.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a wireless communication device, and particularly relates to an improvement in a wireless communication device that is program-operated and controlled in correspondence with a predetermined base station.

[Conventional example]

Conventionally, in mobile wireless communication devices installed in, for example, automobiles, various continuous control functions including frequency selection, data reception/generation, transmission/reception control, operational procedures, etc.
In order to smoothly perform the prescribed procedures, a prescribed processor and a mask ROM or a programmable ROM for electric writing and ultraviolet erasing are built-in, and the above-mentioned various programs are stored in advance in the ROM. Operational control actions are being performed.

[Problem that the invention seeks to solve]

In the above-mentioned conventional wireless communication device, a mask ROM or an electric writing/ultraviolet erasing R, OM is used as the memory for storing the operation control program. Therefore, in order to improve the operation control effect for the wireless communication device, when upgrading the functions of the programs stored in the mask ROM or the electric writing ultraviolet erasing ROM, these ROMs themselves are collected and new functions are added. It is necessary to replace the ROM with a ROM that stores the updated program1.For this reason, if a large number of wireless communication devices are installed in different locations, it is necessary to collect and replace the ROM. The drawback is that the required man-hours and costs are enormous, and this becomes an obstacle to efficient operation of communication lines including wireless communication devices.

[Failure to solve the problem]

In order to solve the above-mentioned drawbacks, the wireless communication device of the present invention corresponds to a specific base station 2 and is equipped with a processor to execute a program. The wireless communication device is equipped with a programmable ROMf for program operation control that stores a program for revising or renewing the program sent from the base station.

〔Example〕

Hereinafter, the present invention will be explained in detail with reference to the drawings.

FIG. 1 is a block diagram showing the main parts of an embodiment of the present invention, and is an example of application to a car telephone device.

As shown in FIG. 1, this embodiment includes an antenna 1,
duplexer 2, transmitter 3, receiver 4, and amplifier 5
and 6, a digital signal modulator/demodulator 7, a processor 8, and an electrically written and electrically erased programmable ROM 9.
and RAM (Randoma access memo)
ry) 10, a dial signal receiver 11, a dial key 12, and a handset 13.

In FIG. 1, in a car telephone device installed in a car as a mobile station, when improving the functionality of an operational control program stored in ROM 9 in advance, a mobile telephone device corresponding to the radio zone in which the car is located is used. The update program sent from the base station via the automobile wireless communication line is received and demodulated as a data signal by the receiver 4 via the antenna 1 and the duplexer 2, and sent to the digital signal modulator/demodulator 7. In the digital signal modulator/demodulator 7, the received demodulated signal input from the receiver 4 is decoded and stored in the ROM 9 as a renewal program through data processing by the processor 8 and the RAM 10. R,0M9 is a programmable 1'LOM with electrical write and electrical erase, usually EEPROM (E
electricalRyErasable and P
R+OM). When the storage of the renewal program in the OM9 is completed, the start address of the new program for control is set through call termination processing, and the state is returned to the state where operation control is resumed6.1. If the incoming signal is a normal telephone call, the call signal received and demodulated by the receiver 4 via the antenna 1 and duplexer 2 is amplified by the amplifier 6 and sent to the handset 13, and a call is started. be done. A call signal transmitted from the car telephone device side via the handset 13 is transmitted to an amplifier 5. Transmitter 3. The signal is transmitted to the base station via the duplexer 2 and antenna 1. Note that FIG. 2 shows a flowchart corresponding to the above-mentioned operational operation.

In the above explanation, we have explained the operational operation in the case of an incoming call in which the renewal program or call signal sent from the base station side is received on the mobile telephone device side. When making a call,
The dial signal transmitted by the dial key 12 is
The digital signal modulator/demodulator 7. is input to the processor 8 via the dial transmitter 11 and is controlled by the program stored in the ROM 9. Transmitter 3. The signal is transmitted to the base station via the duplexer 2 and the antenna 1 via a communication channel designated by the base station. When this dial signal is connected to the other party via the base station, a call is started via the handset 13t- as described above.

Therefore, the programmable ROM 9 in the car telephone device
The program for operation control stored in the vehicle can be updated very easily via the vehicle wireless communication line, and furthermore, it is possible to immediately enter the normal operating state after updating the program.

(Effects of the Invention) As explained above, the present invention provides a wireless communication device that supports a specific base station, includes a processor, and is operationally controlled by a program, using EEPR, OM as a storage means for storing the program. By using this, it is possible to easily update the functions of the program, reduce the man-hours and costs required for updating the program, and enable efficient operation of communication lines related to the update. This has the effect of eliminating obstacles to

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the main parts of an embodiment of the present invention, and FIG. 2 is a flowchart of operation operations during reception in the embodiment.・・・・・・
Deplexer, 3...Transmitter, 4...
Receiver, 5, 6...Amplifier, 7...Digital modulator/demodulator, Processor, 9...
...ROM, 10...R, AM, 11...
Dial signal receiver, 12...-dial key, 13... handset.

Claims (1)

[Claims] In a wireless communication device that corresponds to a specific base station and is equipped with a processor and whose operation is controlled by a program, a program operation control device that stores a program for revising or renewing the program sent from the base station. Programmable ROM (Bead Only memo)
ry).