IC card-type radio communication device

An IC card-type radio communication device includes a main body of equipment, a storage unit, a sound input unit, a sound output unit and a modulation-demodulation unit. The main body of equipment has an interface which is in accordance with a predetermined standard and forms a physical shape which is in accordance with the standard. The main body of equipment is inserted into an entry installed on an external terminal unit. The storage unit is installed on the main body of equipment and stores an attribute information and an information necessary for data communication with the terminal unit. The sound input unit inputs a sound signal when a conversation is executed and the sound output unit outputs the sound signal. The modulation-demodulation unit modulates and demodulates data of the terminal unit on the basis of the information stored in the storage unit when the main body of equipment is inserted into the entry installed on the terminal unit, and modulates and demodulates the sound signal when the conversation is executed.

BACKGROUND OF THE INVENTION
 1. Field of the Invention
 The present invention related to an IC card-type radio communication
 device, and more particularly, to an IC card-type radio communication
 device in which both a radio data communication and a conversation are
 executed using a portable telephone.
 2. Description of the Related Art
 Of a traditional radio communication device, the portable telephone is
 connected to a modem (modulator and demodulator) or an IC card which
 executes a digital signal processing through a cable for a signal wire,
 when the radio communication is executed by using the portable telephone.
 For instance, a digital data transmitted from a personal computer is
 modulated by the modem installed on the IC card to obtain an analog
 signal.
 The analog signal is outputted to a head set terminal of the portable
 telephone by the cable, and the analog signal is modulated into a radio
 signal by the portable telephone. The radio communication is executed by
 the modulated radio signal.
 However, the conventional radio communication device includes the portable
 telephone, the IC card installed on the modem and the cable. For this
 reason, an operational performance of the device is deteriorated and the
 cost is rather high.
 Another conventional radio communication device exists. Which unifies the
 portable telephone and a modem circuit through the cable so that the
 operational performance will be improved.
 However, such accessories as the cable and RS232C connector are necessary
 for connecting the personal computer to the modem circuit. Also, it is
 difficult to make the accessories portable, since the RS232C connector
 itself is relatively large.
 Further, an example 3 of the traditional radio communication device exists.
 In which, an interface between the personal computer and the portable
 telephone is formed in accordance with a standard of Japan Electronic
 Industry Development Association (JEIDA)/Personal Computer Memory Card
 International Association (PCMCIA). However, a cable for connecting an
 earphone or a microphone to the portable telephone is needed, when the
 portable telephone is used for a conversation.
 Also, an IC card mentioned in 140895 number of an official report of patent
 disclosure in 1992 was used for the radio communication, and it was
 miniaturized to the size of a business card. However, a dedicated
 interface for connecting the IC card to a host computer is needed.
 SUMMARY OF THE INVENTION
 An object of the present invention is to provide an IC card-type radio
 communication device which maintains a compatibility of interface for
 traditional data communication, and improves a portability without using
 accessories.
 The IC card-type communication device of the present invention includes a
 body of equipment, a storage unit, a sound input unit a sound output unit
 and a modulation-demodulation unit. The IC card-type communication device
 of the present invention has a physical interface and an electrical
 interface of JEIDA/PCMCIA standard on a part of the portable telephone,
 and reduces such accessories as a cable and executes a radio conversation
 and a radio data communication.
 The body of equipment has an interface unit which is in accordance with a
 predetermined standard and forms a physical shape which is in accordance
 with the standard, and is inserted into a entry installed on an external
 terminal unit. The body of equipment is, for instance, a sheet-type IC
 card.
 The storage unit is installed on the body of equipment, and stores an
 attribute information of the body of equipment and an information
 necessary for data communication to the data of the terminal unit. The
 storage unit is a ROM (Read Only Memory) and a RAM (Random Access Memory)
 and so on.
 The sound input unit inputs a sound signal when a conversation is executed.
 The sound input unit is a microphone and so on. The sound output unit
 outputs the sound. The sound output unit is a speaker and so on.
 The modulation-demodulation unit modulates and demodulates the data of the
 terminal unit on the basis of the information stored in the storage unit,
 when the body of equipment is inserted into the entry installed on the
 terminal unit, and modulates and demodulates the sound signal when the
 conversation is executed. The modulation-demodulation unit includes of
 LSI(Large Scale Integrated circuit) and so on.
 Hereupon, it is preferable that the predetermined standard is at least one
 of a standard of Japan Electronic Industry Development Association (JEIDA)
 and a standard of Personal Computer Memory Card International Association
 (PCMCIA).
 Further, a joining body of equipment which forms a plane that is almost
 identical to the body of equipment so as to be registered with the body of
 equipment, and is joined to the body of equipment in one side can be also
 provided. The sound input unit can be installed on one of the joining body
 of equipment and the body of equipment, and the sound output unit can be
 installed on the other of the joining body of equipment and the body of
 equipment.
 The joining body of equipment can be opened in a predetermined angle to the
 body of equipment when the conversation is executed, and the body of
 equipment can be inserted into the entry installed on the terminal unit,
 when the data communication by the terminal unit is executed.
 Further, a joining body of equipment which has a plane that is almost
 identical to the body of equipment and an arbitrary thickness can be
 provided. The joining body of equipment can be isolated from the body of
 equipment electrically.
 Besides, one of the joining body of equipment and the body of equipment can
 be provided with a slot unit which is slid physically and is locked in a
 predetermined position by the other of the joining body of equipment and
 the body of equipment.
 Further, a magnet can be installed on each surface of the joining body of
 equipment and the body of equipment so as to unify the joining body of
 equipment and the body of equipment physically.
 Further, an input unit for inputting a dial information when the
 conversation is executed, and an invalidating unit for invalidating the
 dial information transmitted from the input means when the input is
 inserted into the entry of the terminal unit can be provided. The input
 unit is, for instance, a sheet switch.
 The body of equipment can be provided with a secondary cell unit for
 supplying the sound input unit, the sound output unit, the storage unit
 and the modulation-demodulation unit with electric power. The secondary
 cell unit is charged by the electric power supplied from a power supply of
 the terminal unit, when the interface is inserted into a connector which
 is installed on the entry and is in accordance with the standard.
 An indicator which displays a charging state of the secondary cell unit
 which is charged by the electric power supplied from the power supply of
 the terminal unit can be provided.
 Another secondary cell unit which forms a shape that is almost identical to
 the secondary cell unit also can be provided. The another secondary cell
 unit is connected to the body of equipment through the interface unit,
 when the conversation is executed. The another secondary cell unit is
 removed from the body of equipment and the body of equipment is connected
 to the entry installed on the terminal unit, when the data communication
 is executed.
 A voltage conversion circuit for receiving an electric power supplied from
 a power supply installed on an external terminal unit to convert a
 predetermined voltage into another voltage, and a cell unit for executing
 a charge with another voltage converted by the voltage conversion circuit
 also can be provided.
 An information storage unit for storing specific information and a control
 unit for exchanging the information stored in the information storage unit
 between the information storage unit and the terminal unit, when the body
 of equipment is inserted into the entry installed on the terminal unit
 also can be provided.
 An input unit for inputting a personal identification password as a
 personal information is provided, and the control unit writes the personal
 identification password inputted from the input unit into the information
 storage unit to check the password between the information storage unit
 and the terminal unit. The input unit is, for instance, a switch.
 According to the present invention, the body of equipment has an interface
 unit which is in accordance with a predetermined standard and forms a
 physical shape which is in accordance with the standard, and is inserted
 into an entry installed on an external terminal unit. Namely, the body of
 equipment is inserted into the entry of the terminal unit without using
 such accessories as a cable, and the interface unit can be connected to
 the terminal unit without difficulty.
 Besides, the IC card-type radio communication device has a radio data
 communication function according to the storage unit and the
 modulation-demodulation unit, and has a radio conversation function
 according to the sound input unit, the sound output unit and the
 modulation-demodulation unit. Accordingly, it is not necessary to use such
 accessories as a cable for a microphone and a speaker, and the portability
 can be improved.
 Besides, the compatibility with the traditional data communication
 interface can be maintained, if the standard is one of a standard of Japan
 Electronic Industry Development Association (JEIDA) and a standard of
 Personal Computer Memory Card International Association (PCMCIA).
 Further, the conversation can be executed by using the sound input unit and
 the sound output unit in a condition that the joining body of equipment is
 opened to the body of equipment in a predetermined angle. The data
 communication according to the terminal unit can be executed by inserting
 the body of equipment into the entry installed on the terminal unit.
 The portability can be improved, since the joining body of equipment which
 has a plane that is almost identical to the body of equipment and has an
 arbitrary thickness is isolated from the body of equipment electrically.
 The unification of the joining body of equipment and the body of equipment
 can be attempted, since the slot unit installed on one of the joining body
 of equipment and the body of equipment is slid and is locked in the
 predetermined position by the other of joining body of equipment and the
 body of equipment.
 The joining body of equipment can be unified with the body of equipment by
 the mutual attraction of the magnet on the surface of the joining body of
 equipment and the magnet on the surface of the body of equipment.
 For instance, a wrong operation can be avoided, since the invalidating
 circuit invalidates a dial information transmitted by an accidental push
 of a sheet switch, when the sheet switch is inserted into the entry of the
 terminal unit.
 The consumption of the secondary cell unit can be restrained, since the
 secondary cell unit is charged by the electric power supplied from a power
 source of the terminal unit, when the interface unit is inserted into a
 connector of the terminal unit. The usage of the secondary cell unit can
 be understood, since a charging state of the secondary cell unit is
 displayed on the indicator.
 Another secondary cell unit is connected to the body of equipment through
 the interface to receive an electric power supply of the another secondary
 cell unit, when the conversation is executed. The consumption of the
 secondary cell unit can be reduced, since the another secondary cell unit
 is removed from the body of equipment and the body of equipment is
 connected to the entry installed on the terminal unit to charge the
 secondary cell unit, when the data communication is executed.
 The utility value of the device will be raised, since the control unit
 exchanges the information stored in the information storage unit between
 the information storage unit and the terminal unit, when the body of
 equipment is inserted into the entry installed on the terminal unit.
 The exchange of the personal information between the information storage
 unit and the terminal unit can be restricted, since the control unit
 writes the personal identification password inputted from the input unit
 into the information storage unit to check the password between the
 information storage unit and the terminal unit.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
 The embodiments of the present invention will be described by referring to
 the drawings as follows.
 EMBODIMENT 1
 FIG. 1 is a construction diagram indicating an IC card-type radio
 communication device according to the embodiment 1 of the present
 invention. The IC card-type radio communication device 1a of the
 embodiment 1 has a interface unit 14a which is in accordance with a
 predetermined standard, and forms a physical shape which is in accordance
 with the standard, and is provided with a body of equipment 10 which can
 be inserted into an entry installed on an external terminal unit 2. The
 body of equipment is a sheet-type IC card.
 The predetermined standard is at least one of a standard of Japan
 Electronic Industry Development Association (JEIDA) and a standard of
 Personal Computer Memory Card international Association (PCMCIA).
 The body of equipment 10 comprises a storage unit 221a, a sound input unit
 122a, a sound output unit 112a and a modulation-demodulation unit 222a to
 which the units are connected. The storage unit 221a stores an attribute
 information of a card and an information necessary for data communication
 to the data of the terminal unit. The storage unit 221a is a ROM or a RAM
 and so on.
 The sound input unit 122a inputs a sound signal when a conversation is
 executed. The sound input unit 122a is a microphone and so on. The sound
 output unit 112a outputs the sound signal. The sound output unit 112a is a
 speaker and so on. The modulation-demodulation unit 222a modulates and
 demodulates the data of the terminal unit 2 on the basis of the
 information stored in the storage unit 221a, when the body of equipment 10
 is inserted into the entry installed on the terminal unit 2. The
 modulation-demodulation unit 222a modulates and demodulates the sound
 signal when the conversation is executed, and consists of LSI (large scale
 integrated circuit) and so on.
 The terminal unit 2 has the entry 31, and is, for instance, a personal
 computer. The giving and receiving of the data is executed between the
 terminal unit 2 and the body of equipment 10 through the entry 31.
 FIG. 2 is a flowchart indicating an operation of an IC card-type radio
 communication device according to the embodiment 1 of the present
 invention. The operation will be described by referring to FIG. 1 and FIG.
 2.
 First of all, one of a data communication and a conversation is selected
 (Step S1). The body of equipment should be inserted into the entry 31 of
 the terminal unit 2, when the data communication is selected (Step S2).
 Then, the modulation-demodulation unit 222a inputs an attribute information
 of a card and an information necessary for data communication from the
 storage unit 221a (Step S3). The modulation-demodulation unit 222a
 modulates and demodulates the data stored in the terminal 2 on the basis
 of the information through the interface unit 14a (Step S4).
 On the other hand, the modulation-demodulation unit 222a inputs a sound
 signal from the sound input unit 122a, when the conversation is executed
 (Step S5). Further, the modulation-demodulation unit 222a modulates the
 sound signal inputted from the sound input unit 122a and transmits it
 outside with a radio signal (Step S6).
 Besides, the modulation-demodulation unit 222a demodulates the received
 radio signal and outputs the sound signal to the sound output unit 112a.
 As mentioned hereinbefore, according to the embodiment 1, the body of
 equipment 10 has an interface unit 14a which is in accordance with a
 predetermined standard and forms a physical shape which is in accordance
 with the standard, and is inserted into an entry 31 of an external
 terminal unit 2. Namely, the body of equipment 10 is inserted into the
 entry 31 of the terminal 2 without using such accessories as a cable, and
 the interface unit 14a can be connected to the terminal unit 2 without
 difficulty.
 Besides, the IC card-type radio communication device has a radio data
 function according to the storage unit 221a and the
 modulation-demodulation unit 222a, and a radio conversation function
 according to the sound input unit 122a, the sound output unit 112a and the
 modulation-demodulation unit 222a.
 Accordingly, such accessories as the cable for the microphone and the
 speaker are needless, and the portability can be improved. Besides, the
 compatibility with the traditional data communication interface can be
 maintained, if the standard is one of a standard of Japan Electronic
 Industry Development Association (JEIDA) and a standard of Personal
 Computer Memory Card International Association (PCMCIA).
 EMBODIMENT 2
 Then, the embodiment 2 of an IC card-type radio communication device of the
 present invention will be described. The IC card-type radio communication
 device executes a radio data communication and a radio conversation. FIG.
 3 is a diagram indicating a state of use of the IC card-type radio
 communication device of the embodiment 2, when the data communication is
 executed, and when the conversation is executed.
 The IC card-type radio communication device 1 (hereinafter referred to as
 communication device) of the embodiment 2 comprises an upper part body of
 equipment 11, a lower part body of equipment 12 and an antenna 13 for
 radio equipment which is installed on one side of the upper part body of
 equipment 11 and transmits a radio signal.
 A 68 pin connector 14 of JEIDA/PCMCIA standard for connecting the
 communication device 1 to the personal computer 2 which is mentioned later
 is installed on the one side of the lower part body of equipment 12.
 The lower part body of equipment 12 has a physical shape which is in
 accordance with JEIDA/PCMCIA standard.
 The upper part body of equipment 11 has a plane which is almost identical
 to the lower part body of equipment 12 and has a predetermined thickness.
 The upper part body of equipment 11 is constructed to be connected to the
 lower part body of equipment 12 in one side 15 physically and electrically
 and to be registered with the lower part body of equipment 12. FIG. 4 is a
 diagram indicating a receiving state of the communication device 1, when
 it is unused. The upper part body of equipment 11 is registered with the
 lower part body of equipment 12, when the communication device 1 is not
 used.
 The upper part body of equipment 11 comprises an indicator 111 which
 displays a dial information and so on, a speaker 112 which sound-outputs a
 receiving signal received from the antenna 13 and a portable telephone
 circuit 222 which is mentioned later.
 The lower part body of equipment 12 comprises a dial button 121(or a sheet
 switch) which inputs a dial information, a microphone 122 which inputs a
 sound signal, a JEIDA card-type secondary cell unit (hereinafter, referred
 to as secondary cell unit a secondary cell unit) and an attribute memory
 221 which is mentioned later. Further, the portable telephone circuit 222
 can be installed on the lower part body of equipment.
 FIG. 5 is a diagram indicating a state of a radio data communication when
 the communication device 1 is mounted on a personal computer. As shown in
 FIG. 5, the upper part body of equipment 11 should be set to a state in
 which it is opened to the lower part body of equipment 12 in a
 predetermined angle. In the state, the lower part body of equipment 12
 should be inserted into an IC card slot (an entry) 31 installed on the
 personal computer 2.
 Then, the connector 14 installed on the lower part body of equipment 12 is
 connected to the unillustrated connector on the personal computer 2 side.
 And the data stored in the personal computer 2 is transmitted to the body
 of equipment 11, 12 through the connector 14. By these operations, the
 radio data communication by the personal computer 2 will be executed.
 FIG. 6 is a construction diagram indicating an IC card-type radio
 communication device of the embodiment 2. In FIG. 6, the communication
 device 1 comprises the connector 14 as JEIDA/PCMCIA interface which is
 connected to the personal computer 2, the attribute memory 221 and the
 portable telephone circuit 222.
 The attribute memory 221 is a card configuration register card which sets
 up a card attribute and so on. The attribute memory 221 comprises a card
 configuration option register 221a (hereinafter referred to as COR221a
 hereinafter), a card configuration status register 221b (hereinafter
 referred to as CCSR221b) and a card information structure 221c
 (hereinafter referred to as CIS221c).
 The CIS221c consists of a read only memory (ROM), and stores a device
 information which indicates a attribute of the communication device 1,
 such product information as a maker of product and a version of product,
 an interruption mode information and a voltage and electric power
 information in addresses of OOO-3EFh.
 The CCOR221a consists of a random access memory (hereinafter referred to as
 RAM), and stores a selective information of COM 1, 2, 3, 4, a card enable
 information CE for switching the power supply ON and a soft reset
 information SR in an address 3FOh.
 The CCSR221b consists of RAM, and stores a power down mode selective
 information PD, an audio monitor selective information AM and a ringer
 output selective information RO in an address 3F2h.
 The portable telephone circuit 222 comprises a microprocessor (MPU) 222a, a
 modulation-demodulation LSI222b, a ROM222c, a RAM222d and an EEROM222e.
 Further, the microprocessor controls each of the indicator 111, the speaker
 112, the dial button 121 and the microphone 122.
 The microprocessor 222a executes a packeting of data transmitted from the
 personal computer 2, a detection of errors and a call control, and
 executes such functions as a modem function corresponding to the contents
 of the ROM222c at the same time.
 The modulation-demodulation LSI222b modulates and demodulates the data for
 the personal computer 2 on the basis of the commands of the microprocessor
 222a, when the data communication is executed, and modulates and
 demodulates the sound signal when the conversation is executed. The
 modulation-demodulation LS1222b outputs a digital audio to the personal
 computer 2 through a gate 226.
 Such device programs as a communication protocol, a network control
 procedure and a modulation-demodulation program are stored in the ROM222c.
 Such information as a data compression is stored in the RAM222d. Such
 information as a setting information and a telephone number are stored in
 the EEROM222e.
 Further, a address bus 223 and a data bus 224 are connected to a MPU222a
 and a gate 225. The gate 225 is opened by a COM information transmitted
 from the CCOR221a.
 FIG. 7 is a flowchart indicating an operation of the embodiment 2 when a
 radio data communication is executed. Then, the operation of the
 embodiment 2 constructed in the above-mentioned way will be described.
 First of all, the communication device 1 is inserted into the personal
 computer 2, and the connector 14 consisting of 68 pin is inserted into the
 IC card slot 31 installed on the personal computer 2 (Step S11).
 Then, the personal computer 2 detects that a card diction CD transmitted
 from the communication device 1 is "L", and actuates the power source of
 the communication device 1 (Step S12). The personal computer 2 reads out
 the contents stored in the CIS221c which is loaded within the
 communication device 1, namely, the device information (Step S13).
 Then, the personal computer 2 recognizes from the contents of the CIS221c
 that the communication device 1 can be used as an I/O card (Step S14).
 Further, the personal computer 2 prepares for the data communication in
 which a communication software is loaded on the communication device 1
 (Step S15). The personal computer 2 writes such necessary information as
 an audio monitor AM into the CCSR221b loaded within the communication
 device 1 (Step S16).
 And the personal computer 2 writes such information as an information of
 COM port and a card enable CE into the CCOR221a loaded within the
 communication device 1 (Step S17). Then, the portable telephone circuit
 222 will be driven (the power source is ON) by writing the "ON" of the
 card enable CE.
 Besides, the personal computer 2 opens the gate 225 by writing the
 selective information COM of the COM port, and connects the data bus 224
 and the address bus 223 to the MPU222a.
 Further, the personal computer 2 drives the prepared communication software
 to control the portable telephone circuit 222 installed on the
 communication device 1 (Step S18). Then, the microprocessor 222a reads out
 the communication protocol, the network control procedures and the
 modulation-demodulation program stored in the ROM222c to execute them.
 Further, the modulation-demodulation LSI222b executes the
 transmission-receiving of the modulated data in accordance with the
 instructions of the microprocessor 222a to initiate the radio data
 communication. Besides, the radio conversation also can be executed in the
 same procedure as the radio data communication.
 As mentioned hereinbefore, the radio data communication and the radio
 conversation can be executed by only inserting the lower part body of
 equipment 12 which has a physical shape of JEIDA/PCMIA standard within the
 communication device 1 and the connector 14 of JEIDA/PCMIA standard into
 the personal computer 2. Accordingly, the communication device 1 also can
 be used as a portable telephone without using such accessories as a cable,
 and the portability will be improved.
 Then, the secondary cell unit 16 which is one characteristic of the
 embodiment 2 will be described. FIG. 8 is a diagram indicating a
 construction of the secondary cell unit 16. In FIG. 8, the secondary cell
 unit 16 is connected to the personal computer 2 through one part of
 terminals VCC, CD1, CD2 installed on the connector 14, and is connected to
 the antenna 13 through the portable telephone circuit 222.
 The secondary cell unit 16 comprises a DC-DC convertor 161 which is
 connected to the terminal VCC, a secondary cell 162, a comparator 163
 consisting of the comparators 163a-163c and an indicator 164 which is
 connected to the secondary cell 162 through each of the comparators and
 the resistances R2-R4 corresponding to the comparator. The secondary cell
 162 is connected to the DC-DC convertor 161 through the diode D1 and the
 resistor R1, and is connected to the portable telephone circuit 222.
 Further, a voltage stabilization circuit which sets the voltage transmitted
 from the personal computer 2 to the predetermined voltage can be used in
 place of the DC-DC convertor 161.
 In the above-mentioned construction, as shown in FIG. 5, the personal
 computer 2 will connect the card diction terminals CD1 and CD2 on the
 JEIDA/PCMCIA interface to the terminal GND, if the lower part body of
 equipment 12 is inserted into the IC card slot 31.
 Then, the personal computer 2 recognizes that an ordinary IC card is
 mounted when the lower part body of equipment 12 is inserted into the IC
 card slot 31, and supplies the terminal VCC with the electric power. The
 electric power is supplied to the secondary cell 162 through the DC-DC
 convertor 161 so that the secondary cell 162 will be charged.
 Then, the portable telephone circuit 222 is actuated by the electric power
 supplied from the secondary cell 162, and the radio data communication is
 executed.
 Besides, the charging voltage which is charged into the secondary cell 162
 is compared with the threshold voltage which was set up previously in each
 of comparators 163a-163c. The corresponding light-emitting diodes
 164a-164c installed on the indicator 164 are lighted up, when the charging
 voltage exceeds the threshold voltage.
 Accordingly, the charging state of the secondary cell 162 can be recognized
 by the number of lightings of the light-emitting diode. Hereupon, the
 indicator 111 can be provided with the function mentioned above, even
 though the indicator 164 is provided separating from the indicator 111.
 As mentioned hereinbefore, the portable telephone circuit 222 is actuated
 and the radio communication can be executed, when the lower part body of
 equipment 12 is inserted into the personal computer 2 in a state that the
 upper part body of equipment 11 is opened to the lower part body of
 equipment 12 in a predetermined angle. In this case, the consumption of
 the secondary cell 162 can be reduced, since the secondary cell 162 is
 charged by the electric power supplied from the personal computer 2.
 Besides, the secondary cell 162 included in the communication device 1 can
 be charged by only inserting the lower part body of equipment 12 into the
 IC card slot 31, even if neither the conversation nor the data
 communication is executed.
 Further, the communication device 1 of the embodiment 2 can be used as a
 portable telephone by the electric power of the secondary cell 16 included
 in the communication device 1, when it is not connected to such other
 terminal units as the personal computer 2.
 EMBODIMENT 3
 Then, the embodiment 3 of the present invention will be described. It is
 difficult to mount the projects of the dial button 121 on the
 communication device 1, when the communication device 1 is used as a
 portable telephone. For this reason, it is effective to load the sheet
 switch 121a on the communication device 1.
 However, it sometimes happens that the sheet switch 121a will be operated
 wrongly by pressure, if the sheet switch 121a is inserted into the IC card
 slot 31 of the personal computer 2, when the sheet switch 121a is mounted
 on the JEIDA/PCMCIA connector 14 side.
 The communication device 1-2 of the embodiment 3 is constructed to prevent
 the wrong operation of the sheet switch 121a. FIG. 9 is a diagram
 indicating a construction of principle parts of the embodiment 3 of the
 present invention. In FIG. 9, the communication device 1-2 of the
 embodiment 3 is provided with an AND circuit which obtains a AND of the
 input information inputted from the sheet switch 121a and the register
 signal(hereinafter referred to as -REG signal "L") supplied from the
 personal computer 2 through the connector 14, when the communication
 device 1-2 is mounted on the personal computer 2 and supplies the portable
 telephone circuit 222 with the output.
 Further, other constructions are the same as those of the embodiment 2, so
 the detailed description about them will be omitted.
 According to the above-mentioned construction, -REG signal "L" which is
 supplied from the personal computer 2 to the card side is inputted into
 the AND circuit 168, when the sheet switch 121a is inserted into the
 personal computer 2.
 On the other hand, the input information "H" is inputted into the AND
 circuit 168, when one sheet of a plurality of sheets included in the sheet
 switch 121a is pushed by the wrong operation.
 Then, the output of the AND circuit 168 is converted into "L" so that the
 portable telephone circuit 222 will not be actuated. Namely, the portable
 telephone circuit 222 will not be actuated, even if the sheet switch 121a
 is operated wrongly, so the wrong operation can be avoided.
 Further, although the sheet switch 121a is mounted on the communication
 device 2-1 in the embodiment 3, the wrong operation can be avoided, even
 if , for instance, the dial switch is mounted.
 EMBODIMENT 4
 Then, the embodiment 4 of the present invention will be described. FIG. 10
 is a diagram indicating a construction of principle parts of the
 embodiment 4 of the present invention. In FIG. 10, the communication
 device 1-3 comprises a dial switch 121, a portable telephone circuit 222,
 an AND circuit 169, a LSI 170, a nonvolatile memory 172 which stores a
 telephone directory data and a personal identification password and a MPU
 171 which controls the principle parts.
 The data bus DO-15 of 16 bits and the address bus AO-25 of 26 bits are
 connected to the LSI 170 from the personal computer 2 through the
 connector 14. REG signal is inputted into the AND circuit 169.
 Other constructions are the same as those of the embodiment 2, so the
 detailed description about them will be omitted.
 According to the above-mentioned construction, the REG signal will be
 converted into "L", when the communication device 1-3 is mounted on the IC
 card slot 31 of the personal computer 2. The output of the AND circuit 169
 will be converted into "L", and the output will be inputted into the LSI
 170.
 The LSI 170 connects the nonvolatile memory 172 to the digital data buses
 DO-D15 and the analog data buses AO-A15.
 By these operations, the nonvolatile memory 172 within the communication
 device 1-3 can be easily accessed by the personal computer 2.
 Besides, the switch selective signal transmitted from the dial switch 121
 is outputted to the portable telephone circuit 222 and the MPU 171, and
 MPU 171 monitors the input from the dial switch 121 all the time.
 Hereupon, the MPU 171 executes the writing or the reading of the switch
 selective signal following the specific input for the nonvolatile memory
 172, when a specific input was detected from the dial switch 121.
 The writing of data into the nonvolatile memory 172 by the dial switching
 operation will be described in detail. FIG. 11 is a flowchart indicating a
 procedure for writing data into the nonvolatile memory by the dial
 switching operation of the embodiment 4 of the present invention. The
 writing of data will be described by referring to FIG. 11.
 First of all, the MPU 171 compares the switch selective signal transmitted
 from the dial switch 121 with the predetermined initiation switch input
 procedure (Step S31). Hereupon, the process returns to the process of Step
 S31, when the switch selective signal is not the same procedure as the
 initiation switch input procedure.
 On the other hand, the switch selective signal should be stored in the
 unillustrated register Rn installed on the MPU 171, when the switch
 selective signal is the same procedure as the initiation switch input
 procedure (Step S32).
 Then, MPU 171 compares the switch selective signal with the predetermined
 termination switch input procedure (Step S33). Hereupon, the process
 returns to the process of Step S32, when the switch selective signal is
 not the same procedure as the termination switch input procedure.
 On the other hand, the MPU 171 sets the gate signal *G which is transmitted
 to the bus buffer of the LSI 170 to "H" and separates the nonvolatile
 memory 172 from the personal computer 2, when the switch selective signal
 is the same procedure as the termination switch input procedure (Step
 S34).
 Further, the MPU 171 reads out the switch selective signal from the
 unillustrated register Rn which exists inside, and writes it into the
 nonvolatile memory 172 Step S35). The MPU 171 sets the gate signal *G
 which is transmitted to the bus buffer of the LSI 170 to "L", and connects
 the nonvolatile memory 172 to the personal computer 2 (Step S36).
 By these operations, the data can be written into the nonvolatile memory
 172 by the operation of the dial switch 121. Besides, the nonvolatile
 memory 172 can be accessed from the personal computer 2.
 Accordingly, the telephone directory data can be exchanged between the
 communication device 1-3 and the personal computer 2, when the data is the
 telephone directory data. Besides, the exchange information can be limited
 by checking the password between the nonvolatile memory 172 in which the
 personal identification password is stored and the personal computer 2,
 when the data is a personal identification password.
 EMBODIMENT 5
 Then, the embodiment 5 of the present invention will be described. In the
 communication device 1-4 of the embodiment 5, another secondary cell unit
 18 is added to the communication device l shown in the embodiment 5. FIG.
 12 is a diagram indicating a construction of a communication device in the
 embodiment 5, when a conversation is executed. FIG. 13 is a diagram
 indicating a construction of another secondary cell of the embodiment 5.
 FIG. 14 is a diagram indicating a charge of another secondary cell unit by
 the electric power supplied from a personal computer. As shown in FIG. 13,
 another secondary cell unit 18 forms a physical shape of JEIDA/PCMCIA
 standard, and the edge unit A is projected against the plane unit B in
 step-wise.
 A 68 pin connector 14a of JEIDA/PCMCIA standard is installed on one side of
 the edge unit A. The 68 pin connector 14a is a female connector, and
 interfits a male connector of the 68 pin connector 14 of JEIDA/PCMCIA
 standard, when the lower part body of equipment 12 of the communication
 device 1 is mounted on the plane unit B.
 Besides, a 68 pin connector 14b of JEIDA/PCMCIA standard is installed on
 one side of the plane unit B of another secondary cell unit 18. The 68 pin
 connector 14b is a male connector. As shown in FIG. 14, the male connector
 interfits an unillustrated female connector, when another secondary cell
 unit 18 is inserted into the personal computer 2.
 FIG. 15 is a diagram indicating a construction of the another secondary
 cell unit. In FIG. 15, the construction of another secondary cell unit 18
 is the same as the construction of the secondary cell unit 16
 fundamentally. Hereupon, the another secondary cell unit 18 comprises a
 DC-DC convertor 181 which is connected to the personal computer 2 through
 the connector 14b, a diode D11 which is connected to the DC-DC convertor
 181 and a secondary cell 182 which is connected to the diode D11.
 Further, the CD terminal will be grounded and the electric power will be
 supplied from the personal computer 2 to the terminal VCC, if the
 secondary cell unit 18 is inserted into the personal computer 2.
 In the above-mentioned construction, for instance, another secondary cell
 unit 18 should be connected to the communication device 1 when a
 conversation is executed, as shown in FIG. 12. The 68 pin connector 14a
 interfits the 68 pin connector 14, when the conversation is executed. The
 communication device 1-4 receives the electric power from the secondary
 cell 182 within another secondary cell unit 18 to be actuated.
 On the other hand, another secondary cell unit 16 should be removed from
 the communication device 1 to connect the communication device 1 to the
 personal computer 2, when the data communication is executed. Then, the
 communication device 1 receives the electric power from the personal
 computer 2 to be actuated.
 As mentioned hereinbefore, the consumption of the secondary cell unit 18
 included in the communication device 1 can be reduced and the portability
 can be improved, since another secondary cell unit 18 is used. Further, as
 shown in FIG. 14, another secondary cell unit 18 can be inserted into the
 personal computer 2 to be charged, when another secondary cell unit is not
 used.
 EMBODIMENT 6
 Then, the embodiment 6 of the present invention will be described. FIG. 16
 is a diagram indicating a construction of the embodiment 6 of the present
 invention. The communication device 1-5 of the embodiment 6 is a
 slide-lock mode IC card-type communication device. In FIG. 16, the
 communication device 1-5 comprises a fixed body of equipment 11a and a
 slide body of equipment 12a which slides the fixed body of equipment. The
 fixed body of equipment 11a is separated from the slide body of equipment
 12a electrically.
 The slide body of equipment 12a comprises the speaker 112, the attribute
 memory 221, a radio modem circuit 230 and the connector 14. The fixed body
 of equipment 11a comprises a microphone 122, the dial switch 121, the
 indicator (LCD) 111, an unillustrated secondary cell and so on.
 The radio modem circuit 230-comprises a microprocessor 222a within a
 portable telephone circuit 222 shown in FIG. 6, a modulation-demodulation
 LSI 222b, a ROM 222c, a RAM 222d and an EEROM 222e.
 The fixed body of equipment 11a has a slot unit 19, and its cross-section
 forms a C-character shape. The slide body of equipment 12a is inserted
 into the slot unit 19, and the slide body of equipment 12a slides the slot
 unit 19.
 As shown in FIG. 17, only the slide body of equipment 12a should be
 inserted into the card slot 31 of the personal computer 2, when the radio
 data communication is executed in the above-mentioned construction.
 Whereupon, the connector 14 installed on the slide body of equipment 12a is
 connected to the unillustrated connector of the personal computer 2. Then,
 the slide body of equipment 12a receives the electric power from the power
 source of the personal computer 2 to be actuated. Namely, the radio data
 communication can be initiated.
 Besides, as shown in FIG. 18, the slide body of equipment 12a should be
 inserted into the slot unit 19 of the fixed body of equipment 11a, when
 the communication device is received as a portable telephone.
 EMBODIMENT 7
 Then, the embodiment 7 of the present invention will be described. FIG. 19
 is a diagram indicating a construction of the embodiment 7 of the present
 invention. The communication device 1-6 comprises a first body of
 equipment 12b and a second body of equipment 11b. The first body of
 equipment 12b is separated from the second body of equipment 11b
 electrically.
 The first body of equipment 11b comprises the speaker 112, the attribute
 memory 221, the radio modem circuit 230, the connector 14 and the magnets
 20c, 20d on the both sides.
 The second body of equipment 12b comprises the microphone 122, the dial
 switch 121, the magnets 20a, 20b on the both sides, the connector 14, the
 unillustrated secondary cell and so on.
 The magnet 20d corresponds to the magnet 20a, and the magnet 20c
 corresponds to the magnet 20b.
 The radio data communication can be initiated by inserting only the first
 body of equipment 12b into the card slot 31 of the personal computer 2,
 when the radio data communication is executed in the above-mentioned
 construction.
 Besides, the magnet 20d should be attached to the magnet 20a and the magnet
 20c should be attached to the magnet 20b, when the communication system is
 received as a portable telephone. Namely, the first body of equipment 12b
 should be mounted on the second body of equipment 11b.