JPH01180135A - Automobile telephone system - Google Patents

Abstract

PURPOSE:To obtain a telephone system whose user call telephone number is unchanged even if the user replaces a radio telephone set by providing a radio telephone set accommodating a ROM cartridge with an identification number increase of outgoing call and incoming call written therein a replaceable way. CONSTITUTION:An IDROM cartridge 1 accommodates a ROM in which a telephone number in case of outgoing call/incoming call is written, and in case of plug-in of the cartridge 1 to the main body 2, the ROM is connected to a decoder of the main body 2. The memory for the automatic dial function and the scratch pad function is stored in the cartridge 1. Moreover, a personal identification number is given to the user to prevent unauthorized use. By such a constitution, even when the ratio telephone set in use is replaced, the user call telephone number is unchanged and many users share one telephone set, the telephone charge can be calculated on individual basis.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a car telephone system, and more particularly to a car phone system that accommodates not only a car-mounted radio telephone but also a portable radio telephone.

[Conventional technology]

In recent years, car telephone systems have come to accommodate mobile radio telephones called portable radio telephones, so it is becoming more common for people to own a plurality of radio telephones, including an on-vehicle radio telephone.

When making and receiving calls using a wireless telephone installed in a car telephone system, the identification number of the wireless telephone is required in order to connect the wireless telephone to the other party via a wireless base station and exchange. .

This identification number is used in the public car telephone system.
This is the subscriber number.

A radio telephone housed in a conventional car telephone system has a built-in ROM in which identification number data is written, and the identification number data read from this ROM is used when making and receiving calls. Since this ROM cannot be replaced without disassembling the radiotelephone, in conventional car telephone systems, the identification number is unique to each radiotelephone.

[Problem that the invention seeks to solve]

As explained above, in conventional car phone systems, the identification number is unique to each wireless phone, so if a person owns multiple wireless phones, the identification number (telephone number)
This has the disadvantage that not only do the basic charges for public car telephone systems multiply by multiple times, but it also becomes unclear which telephone number the person on the other end should call.

SUMMARY OF THE INVENTION An object of the present invention is to provide a car telephone system in which the telephone number used to call the user does not change even if the user replaces the radio telephone.

[Means for solving problems]

The car telephone system of the present invention is configured to include a radio telephone capable of housing a replaceable ROM cartridge in which identification number data for making and receiving calls is written.

〔Example〕

The present invention will be described in detail below with reference to the drawings.

FIG. 1 is a perspective view of an example of a wireless telephone housed in an embodiment of the automobile telephone system of the present invention.

Reference numeral 1 denotes an IDROM cartridge, which is plugged into the main body 2 by press-fitting, and is formed in a structure that can be pulled out from the main body 2 and replaced.

The IDROM cartridge 1 contains a ROM in which identification number (telephone number) data for outgoing and incoming calls is written, and this ROM stores the IDROM cartridge 1 in the main unit 2.
When plugged into the main unit 2, the decoder section (not shown)
connected to.

The wireless telephone shown in FIG. 1 is an example of a car-mounted type, but if one person uses multiple wireless telephones accommodated in this embodiment,
IDROM is used in everything, whether it is in-vehicle or portable.
Cartridge 1 can be plugged in. When the user replaces the radio telephone he is using, he only has to pull out the IDROM cartridge 1 from the radio telephone he was previously using and plug it into the radio telephone he is about to use.

If your wireless telephone has an auto-dial function or a scratchpad function (memorizing data entered from the dial keys), you can store the memory for these functions in the IDROM cartridge 1, so you can easily replace the wireless telephone you are using. When doing so, the memory contents of these functions can also be transferred to the new wireless telephone.

Further, by giving each user a password and having the user dial the password and verify it at the base station when the IDROM cartridge 1 is plugged in, it is possible to prevent unauthorized use of the IDROM cartridge 1 due to theft or forgery.

〔Effect of the invention〕

As explained in detail above, the car telephone system of the present invention has a ROM cartridge in which identification number (telephone number) data is written in a replaceable manner, so that the identification number is unique to each radio telephone. Because it can be unique to each user, it has the effect that even if the wireless telephone used is replaced, the telephone number that calls the user does not change, and it is also possible to use one wireless telephone for multiple This has the effect that usage charges can be calculated separately for each user even if the wireless phone is shared by multiple users, and furthermore, since the identification number is separated from the wireless phone, it is easier to rent the hardware of the wireless phone.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an example of a wireless telephone housed in an embodiment of the automobile telephone system of the present invention. 1. IDROM cartridge, 2. Main body. Agent Patent Attorney Uchihara Oto? Genuine rice, car h1. , Ji゛

Claims (1)

[Claims] ROM containing identification number data for outgoing and incoming calls
A car telephone system characterized by comprising a wireless telephone capable of accommodating replaceable cartridges.