JPH06291719A - Radio telephone set - Google Patents

Abstract

PURPOSE:To relax the limits on the use of a radio telephone set for equipments and areas. CONSTITUTION:An IC card 3 is inserted in the battery pack 2 of a main body 1. In the RAM 33 of the IC card, subscriber's individual data such as telephone numbers, etc., is stored, it is read by a CPU 31, delivered from a card I/O part 34 to the battery pack 2 and transmitted to a logical control part/storage part 15 via a card I/O part 18. The logical control part/storage part 15 has the control program of each communication system, and controls a radio transmission part 12 and a radio reception part 13 which are adaptable to each communication system and performs a communication by the communication system selected, based on the subscriber's individual data.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable wireless terminal used in various types of cellular wireless telephone systems, an in-vehicle wireless terminal, and a portable wireless terminal used in a simplified wireless telephone system (PHP system). The present invention relates to a wireless telephone including a terminal and an integrated device that can be incorporated in a desk top device or an OA device (fax, personal computer, etc.) and can use these wireless telephone systems.

[0002]

2. Description of the Related Art In recent years, a cellular radio telephone system has been put into practical use, and a simplified radio telephone system (PHP) has also entered a practical stage, and such a radio telephone system will increase in number of subscribers and become widespread. Is expected to go.

[0003]

Obviously, the advantage of wireless telephones is that they can be dialed wherever they go. On the other hand, mainly due to billing problems, wireless phones that can be used by subscribers have been specified, and they cannot be used unless the subscriber carries a mobile wireless terminal or is in a vehicle equipped with an in-vehicle wireless terminal. There is. That is, only one subscriber telephone number is assigned to one subscriber-side wireless telephone. Therefore, it has been impossible to provide public mobile phones such as buses and taxis and public rental telephones corresponding to passengers' individual systems in rental cars.

There are also restrictions on the areas where calls can be made. Currently, there are multiple wireless telephone systems in Japan (NTT analog system / IDO analog system /
TACS system / JDC digital system) and area-division system allocation. For this reason, business operation is very complicated.For example, when a subscriber who has subscribed to a certain operator moves to an area outside the allocation of that operator, the mobile wireless terminal must be replaced because the communication method is different. First of all, accessories such as a charger and a secondary battery pack must be replaced. Also, the change procedure is very complicated. If it is an in-vehicle wireless terminal, it is necessary to attach / detach the main body, handset, and antenna at a factory specializing in installation.

Further, when it is necessary to change the communication control software written in the wireless telephone for some reason, it is necessary to collect the wireless telephone owned by the user and rewrite the program.
Especially for commercial in-vehicle devices for business use, it takes a great deal of time to collect them, and prompt improvement service for sold-out portable devices is extremely difficult.

Therefore, an object of the present invention is to provide a radiotelephone in which a subscriber is not restricted to a specific radiotelephone call and the restriction due to the difference in regional or various communication systems is relaxed. Especially.

[0007]

In order to achieve the above-mentioned object, the invention according to claim 1 is to connect by connecting to an IC card storing subscriber individual data necessary for connection of a radio telephone and an insertion port. A wireless telephone is constructed by reading out the individual subscriber data from the read IC card and performing a wireless communication based on the read individual subscriber data.

According to a second aspect of the present invention, the wireless telephone main body selects a wireless communication system capable of communicating with the built-in wireless communication device based on the subscriber individual data read from the IC card to perform wireless communication. The wireless telephone set forth in claim 1 is configured to perform.

According to a third aspect of the present invention, the IC card can store at least a part of a communication control program for controlling each device mounted on the main body of the wireless telephone. The wireless telephone according to claim 1 is configured so that the communication control unit calls the communication control program as needed.

According to a fourth aspect of the present invention, the IC card has a built-in pager acceptance module required for calling a pager, and the main body of the wireless telephone has an IC by switching modes.
The wireless telephone set forth in claim 1 is configured so that the pager acceptance module built in the card is activated to switch to the pager call waiting state and the power supply to the device for wireless telephone connection is stopped.

[0011]

Since the present invention has the above-mentioned structure, it has the following effects.

In the radiotelephone according to the first aspect of the present invention, the individual subscriber data necessary for connecting the radiotelephone is stored in the IC card. IC on the wireless phone
When the card is inserted and connected, the individual subscriber data is read from the IC card to the main body side. The wireless telephone body performs wireless communication based on the read individual subscriber data.

In the radiotelephone according to the present invention, the radiotelephone main body reads the subscriber individual data from the IC card, and the radiotelephone mounted on the radiotelephone main body is read based on the read subscriber individual data. A wireless communication method capable of communicating with the communication device is selected, and wireless communication is performed according to the selected wireless communication method.

In the wireless telephone according to the third aspect of the present invention, the communication control program including parameters necessary for communication (for example, information for switching to the low charge system) is stored in the IC card, and the wireless telephone main body. The communication control unit of (1) calls a communication control program from the IC card as necessary to perform communication control.

In the radio telephone according to the invention of claim 4, the IC card has a built-in pager acceptance module necessary for calling a pager. The mode of the wireless telephone is switched to the state of waiting for a pager activation by operating the pager acceptance module built in the IC card by mode switching. At the same time, the power supply to the equipment for wireless telephone connection is stopped. The mode switching is performed automatically or manually when the user moves out of the area where wireless telephone communication is possible.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments shown in the drawings will be described below.

FIG. 1 is a block diagram showing the configuration of an embodiment of a wireless telephone according to the present invention.

In FIG. 1, a wireless telephone which is a portable wireless terminal comprises a main body 1, a battery pack 2 and an IC card 3,
As shown in FIG. 2, the main body 1 and the battery pack 2 are combined, the IC card 3 is inserted into the insertion opening 21 of the battery pack 2, and the main body 1 and the IC card 2 are electrically connected. It is composed of The IC card 3 and the insertion slot 21 are mechanisms that allow the IC card 3 to be easily inserted and removed.

The main body 1 and the battery pack 2 are, for example, public transportation such as a limousine bus, a taxi, and a hire,
Private cars, rental cars, sightseeing boats, corporate campus shuttle buses, temporary event venues, construction sites,
It is rented out in a large-scale amusement park. The IC card 3 is carried by the subscriber.

The main body 1 includes an antenna 11, a radio transmitter 12 connected to the antenna 11, a radio receiver 13, a local frequency oscillator 14 of a PLL synthesizer type for setting a radio channel of the radio receiver 13, and a logic controller. It comprises a storage unit 15, a display unit 16, a power supply unit 17, and a card I / O unit 18.

The wireless transmission unit 12 and the wireless reception unit 13 include a transmitter unit and a receiver unit, respectively, and are circuits capable of supporting the NTT analog system, IDO analog system, TACS system, JDC digital system, and PHP system, respectively. It is a composition. Further, the local frequency oscillating unit 14 can also support each system.

A microcomputer is built in the logic control unit / storage unit 15 and controls the radio transmission unit 12 and the local frequency oscillation unit 14. A communication control program for controlling each device is stored in the logic control unit / storage unit 15, and each device is controlled by the microcomputer reading and executing the communication control program.

The display unit 16 is a liquid crystal screen and displays a telephone number and the like. The power supply unit 17 supplies electric power to each device of the main body 1. The card I / O unit 18 is connected to the I / O unit via the battery pack 2.
It is connected to the C card 3.

The battery pack 2 comprises an insertion / insertion portion 22 in the insertion opening 21 and a battery cell portion 23. Battery cell section 23
Is a power supply terminal connected to the power supply unit 17 of the main body 1,
It has a charging terminal connected to a charger (not shown).

The insertion / insertion section 22 has terminals to be connected to the card I / O section 18 of the main body 1 and the IC card 3. Although the terminal is a metal terminal, a non-contact terminal by an optical signal terminal or a wireless inductive type electrical coupling can also be applied.

The IC card 3 includes a CPU 31, a ROM 32,
RAM 33, card I / O unit 34, backup battery 3
5, consisting of the command aircraft unit 36. By inserting the IC card 3 into the insertion opening 21 of the battery pack 2, the card I / O unit 34 is connected to the terminal of the insertion / attachment unit 22 of the battery pack 2 described above, and is connected to the card I / O unit 18 of the main body. Connected.

The CPU 31 of the IC card 3 has a ROM 32
According to the program stored in the non-volatile RAM33
The subscriber individual data necessary for the connection of the wireless telephone is read from the
The data is transferred to the storage unit 15 and the individual subscriber data is written in the RAM 33.

In the ROM 32, a part of a communication control program including parameters necessary for communication (for example, information for switching to a low fee system, etc.) is written. This communication control program is used when the IC card 3 is connected to the main body 1 as described later, and the logic control unit / storage unit 15 of the main body 1 is used.
It is transferred to, stored in, and used for communication control as subroutine software.

That is, the logic control unit / storage unit 15 of the main body 1
Is a routine software capable of controlling various operations such as a receiver, dial operation, outgoing call, and incoming call, and a communication control software portion common to each communication method is stored. ROM3
In 2, the sequence software that matches each protocol of each communication system is stored, and is called to the main body 1 side for communication when necessary.

The backup battery 35 supplies power to the CPU 31 and the like. The backup battery 35 is charged from the terminals of the battery cell unit 23 of the battery pack 2.

The acceptance unit 36 is a pager acceptance module, which operates by mode switching on the main body 1 side, and displays a message message on the display unit 16 of the main body 1 when called in the pager acceptance mode. Ringing sound and power supply share each circuit of the main body 1. The commander unit 36 has a main body 1
Data such as a telephone number to call and a frequency can be written by inputting keys.

The mode switching on the main body 1 side is performed automatically or manually. For example, when the user moves to an area where wireless telephone communication is not possible, the mode is automatically switched and the command receiver unit 36 is operated so that the pager can receive the command. In addition, a time period such as nighttime when a wireless telephone call is not required frequently can be preset by a timer or can be switched by key input of the main body 1.

When the mode is changed to the pager acceptance mode, power supply to most circuits necessary for connection of the radio telephone of the main body 1 is stopped to save the battery. Generally, a wireless telephone must constantly perform location registration for incoming calls, and therefore must frequently transmit location registration signals. By switching to the pager acceptance mode, the wireless telephone connection function is stopped to save the power required for transmission.

Next, the operation of this embodiment will be described.

The subscriber obtains the individual subscriber data such as a telephone number and ID necessary for connection of the wireless telephone from the business operator and writes the individual subscriber data in the RAM 33 of the IC card 3. Writing to the RAM 33 is performed through the main body 1 by a write-only device prepared by a business operator or by data communication using encryption using a wireless telephone line.

When the IC card 3 in which the individual subscriber data is written is inserted into the insertion slot 21 of the battery pack 2, the CPU
Subscriber individual data is read from the RAM 33 by the card 31, and the card I / O of the main body 1 is passed through the card I / O unit
The data is transferred from the unit 18 to the logic control unit / storage unit 15.

The logical control unit / storage unit 15 that has received the individual subscriber data operates the wireless transmission unit 12 to start the location registration by one communication method. For example, it is assumed that the individual subscriber data is in the DDI analog system. First, the logic control unit / storage unit 15 calls software conforming to the NTT analog protocol from the ROM 32.
It cannot be transmitted because the position registration signal in the T analog system is not specified. Even if the call request can be made after the location registration, there is no response because the corresponding subscriber individual data is not registered in the NTT base station.

Similarly, there is no response when the IDO analog system is tried, and when the DDI analog system is transmitted next, there is a response and the connection is possible. After that, it is the same as a normal wireless telephone. Charges are made by the base station not to the wireless telephone but to the subscriber corresponding to the individual subscriber data stored in the IC card 3.

As described above, according to the wireless telephone of the present embodiment, the IC card 3 is sufficient for the subscriber to own.
If the IC card 3 is carried, it is possible to talk on a wireless telephone without selecting the main body 1. Therefore, even if the subscriber does not carry a portable wireless terminal or is not in a vehicle equipped with an in-vehicle wireless terminal, for example, if a wireless telephone is installed in a taxi when going out, the IC is inserted in the insertion slot 21 of the battery pack 2.
By inserting the card 3, it is possible to transmit and receive by wireless telephone.

In the past, on-board wireless terminals had to be individually installed at the factory by the contract of the subscribers, but since the devices that can be used by the subscribers are not limited, wireless telephones are used at the automobile factory. It is also possible to ship with the mounted.

Further, since the main body 1 side can support a plurality of communication systems and selects a matching communication system according to individual subscriber data, as long as the area is suitable, regardless of the communication system of the subscribing business operator. Connection is possible.

Furthermore, since a part of the communication control program is stored in the ROM 32 of the IC card 3 and called to the main body 1 side as necessary, even when it is necessary to rewrite the communication control program, R of IC card 3
It is sufficient to rewrite the contents of the OM 32, and it becomes unnecessary to collect the main body 1.

Furthermore, since the IC card 3 is provided with a payer commander unit 36 and the pager can be called by a wireless telephone automatically or manually by mode switching, the pager can be contacted even in an area where the wireless telephone cannot communicate. It is possible. Also, in the pager acceptance mode, power supply to devices required for wireless telephone connection is stopped, so
Power consumption can be saved by keeping the wireless telephone always connectable.

The embodiments of the present invention have been described above.
It is needless to say that the present invention is not limited to the above-mentioned embodiments and can be appropriately modified within the scope of the gist of the present invention.

[0044]

As described above, according to the wireless telephone set forth in the first aspect of the present invention, the subscriber only needs to have the IC card, and if the IC card is carried, the wireless telephone body is limited. You can make calls without Therefore, even if the subscriber does not carry a portable wireless terminal or is not in a vehicle equipped with an in-vehicle wireless terminal, he / she can use his / her wireless card by inserting his / her IC card if he / she has a wireless telephone in public transportation. It is possible to send and receive.

According to the wireless telephone set forth in the second aspect of the present invention, it is possible to support a plurality of communication systems and the communication system is selected based on individual subscriber data. It is possible to connect with all communication methods contracted with the business operator in advance regardless of the communication method of the person.

According to the wireless telephone set forth in claim 3, at least a part of the communication control program is stored in the IC card, and the communication control section of the wireless telephone main body calls it as subroutine software if necessary. Thus, even if it is necessary to rewrite the communication control program, it is sufficient to rewrite the contents of the IC card, and it is not necessary to collect the wireless telephone body.

According to the wireless telephone set forth in claim 4, the IC card has a built-in pager acceptance module, and the pager can be called automatically or manually by mode switching, so that the wireless telephone can communicate. Even in areas where it is not possible, you can contact by payer. In the pager acceptance mode, power supply to devices required for wireless telephone connection is stopped, so power consumption can be saved by keeping the wireless telephone connectable.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of a wireless telephone according to the present invention.

FIG. 2 is a perspective view showing the external appearance of the embodiment of FIG.

[Explanation of symbols]

 1 Main Body 12 Radio Transmitter 13 Radio Receiver 15 Logic Control / Memory 18 Card I / O Unit 2 Battery Pack 3 IC Card 31 CPU 32 ROM 33 RAM 34 Card I / O Unit

Claims (4)

[Claims] 1. An IC card storing subscriber individual data necessary for connection of a wireless telephone, and subscriber individual data is read from an IC card inserted into an insertion port and connected, and based on the read subscriber individual data. A wireless telephone, which comprises a wireless telephone body for wireless communication. 2. The wireless telephone main body performs wireless communication by selecting a wireless communication system capable of communicating with a built-in wireless communication device based on subscriber individual data read from an IC card. Wireless phone. 3. The IC card can store at least a part of a communication control program for controlling each device mounted in the wireless telephone main body, and the communication control unit of the wireless telephone main body stores the communication control program. The wireless telephone according to claim 1, wherein the program is called up as needed. 4. The IC card has a built-in pager acceptance module necessary for calling a pager, and the wireless telephone main body is in a standby state for a pager call by operating the pager acceptance module included in the IC card by mode switching. The wireless telephone according to claim 1, wherein the power supply to the device for wireless telephone connection is stopped together with switching.