JP3461212B2 - Communication IC card - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable information device having a wireless communication function and a communication IC card used for the information device. [0002] Conventionally, portable computers and PDAs
When performing wireless telephone communication using a portable information device such as the following, the following mode is used. That is, the mobile phone is connected to the mobile information device via a dedicated cable. In this case, the data communication is performed by wirelessly transmitting data transmitted from the mobile information device to the mobile phone using the mobile phone. Done by On the other hand, voice communication is performed only by a mobile phone. However, in this embodiment, the cable connecting the portable information device and the mobile phone is obstructed during use, resulting in poor operability. Also, a dedicated cable or an adapter for connecting the mobile phone to the cable is always used. There is also the problem of having to carry around. Therefore, recently, a portable information device in which the wireless communication function of the portable telephone is built in the portable information device and which can execute the wireless telephone communication without the portable telephone has been proposed. [0005] In this way, since data communication can be performed by the portable information device alone, operability can be greatly improved. However, when making a voice call, a headset or the like must be connected to the portable information device. Portable information devices are often stored in bags when you are away from home.
Connecting the sets is inconvenient for the user. Therefore, considering the use as a mobile phone, voice communication using a headset is not practically sufficient. [0006] Conventionally, operability for data communication can be greatly improved by incorporating a wireless communication function of a mobile phone into a portable information device. To do so, a headset or the like must be connected to the portable information device. For this reason, the conventional method using a headset is not practically sufficient for making a voice call. SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and has been made to enable voice communication to be performed using a wireless communication function of a portable information device while the portable information device is housed in a bag or the like. Te, and to provide data and voice both suitable free line IC card communication to communicate the. SUMMARY OF THE INVENTION The present invention provides
Battery with input device, arithmetic processing device and display device
Can be installed in the card slot of portable information equipment that can be re-driven
Function between the portable information device and the base station.
In a communication IC card for controlling line communication,
Wireless communication of voice and data between the portable information devices
First wireless communication means for performing communication and an external device having a handset
Of wireless communication of voice with other wireless handsets
Wireless communication means, and the first and second wireless communication means
Provided between the first wireless communication means and the first wireless communication means
Transmitting a voice signal from the base station to the second wireless communication means.
The wireless communication device received by the second wireless communication means.
Audio signal from the handset to the first wireless communication means.
And an interface means for transmitting.
Voice communication between the base station and the base station.
It is characterized by having made it. In this communication IC card , a base station
Wireless communication for wireless communication of voice and data between
Wireless audio communication between the communication means and the wireless handset
And a second wireless communication means.
Interface means provided between the first wireless communication means and the second wireless communication means
By the stage, the base station received by the first wireless communication means
These audio signals are transmitted to the second wireless communication means, and the second
Voice from wireless handset received by wireless communication means
A signal is transmitted to the first wireless communication means. This allows
Data communication can be performed by a portable information device equipped with a communication IC card alone, and voice communication can be performed without connecting a headset or the like to the portable information device with a cable. It can be performed using wireless transmission and reception of audio signals between the second wireless communication means and the handset. In this case, wireless communication with the handset can be realized by a weak radio wave or the like. For this reason, a communication IC car with a portable information device stored in a bag or the like
Voice communication can be performed using the wireless communication function of the mobile phone, and a portable information device suitable for both data and voice communication can be realized. When the portable information device is a pen-input type, it is desirable to provide a stylus for pen input with a transmitter / receiver and a communication function, and use it as a handset. This makes it possible to realize a portable information device that is more excellent in portability and operability. Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a configuration of a PDA according to one embodiment of the present invention. The PDA main unit 1 includes a data processing unit for performing data processing, a first wireless communication unit for performing mobile communication, and a wireless handset 4.
And a second wireless communication unit for transmitting and receiving a voice signal. The data processing unit includes a CPU 14 for controlling the entire operation of the PDA 11, a memory 15 for storing programs and information for operating the CPU 14,
A secondary storage device 16 composed of magnetic storage devices such as D and FDD, a display controller 17 for controlling a liquid crystal display (LCD) 3 used as a display monitor of the PDA 11, a coordinate input device 18 for inputting coordinates with a pen, And a battery 33 and the like. The first radio communication section includes a radio section 23 for transmitting and receiving radio signals including a transmission / reception amplifier, a filter, and an antenna, a channel control section 22 including a microcomputer, a frequency modulation section, and a signal modulation / demodulation section. A PCM codec unit 20 for performing conversion to a PCM signal and conversion from a PCM signal to a voice signal;
It comprises an ADPCM codec section 21 for performing conversion to a PCM signal and conversion from an ADPCM signal to a PCM signal. An interface for data communication between the first wireless communication unit and the data processing unit is performed by the data input / output control unit 19. The second wireless communication unit includes an audio signal codec unit 24 that modulates an audio signal into a signal that can be transmitted by radio waves and demodulates the audio signal from the radio waves, a transmission / reception amplifier, a filter, an antenna, and the like. Be composed. Transmission and reception of audio signals between the first wireless communication unit and the second wireless communication unit are realized by a bidirectional interface between the PCM codec unit 20 and the audio signal codec unit 24. The wireless handset 4 includes a transmission / reception amplifier, a filter, an antenna and the like, a radio section 26 for transmitting and receiving radio signals, an audio signal codec section 27 for modulating an audio signal into a signal capable of being transmitted by radio waves and demodulating an audio signal from the radio waves. , Battery 34, speaker 5, and microphone 6
Is provided. FIG. 2 conceptually shows the external appearance of each of the PDA 11 and the wireless handset 4. PD
An LCD 3 formed integrally with the coordinate input device shown in FIG. 1 is provided on the upper surface of the main body of A1. A car bar 2 for protecting the surface of the LCD 3 is attached to the body of the PDA 1 so as to be freely opened and closed. A wireless unit 23 is provided inside the carver 2.
Metal wiring constituting the antenna 200 is provided. An antenna 100 for the wireless unit 25 is provided on the main body of the PDA 11. The wireless handset 4 has a cellular phone type shape as shown in the figure, and has a speaker 5, a microphone 6, and an antenna 7 mounted on its main body.
Further, a stylus 101 for inputting data using the coordinate input device 18 is provided with a speaker 102, a microphone 103, and an antenna 104 as shown in the figure, and can be used as a wireless handset. In this case, it is preferable that the antenna 104 is attached so as to be housed in the pen-shaped stylus 101 main body. Here, the PDA 1 shown in FIGS.
Will be described. Radio waves including telephone voice signals transmitted from the base station of the mobile communication device are received by the radio unit 23 of the PDA 1, and the voice signals are detected by the channel control unit 22. The detected audio signal is AD
PCM codec section 21 and PCM codec section 22
Is converted from a digital signal to an analog signal. The audio signal converted to an analog signal is modulated by the audio signal codec unit 24 into a signal that can be transmitted by radio waves, and then transmitted from the radio unit 25 by radio waves. The wireless handset 4 includes a radio unit 26
Receives a radio wave from the PDA 1 and an audio signal codec unit 27 demodulates and extracts an audio signal from the radio wave. The demodulated audio signal is output as a voice through the speaker 5 so that the telephone handset from the base station can be heard by the wireless handset 4. On the other hand, the audio signal collected by the microphone 6 of the wireless handset 4 is output to the PDA 1 via the audio signal codec unit 27 and the radio unit 26. The PDA 1 receives a radio wave from the wireless handset 4 through the radio unit 25 and converts it into an audio signal codec unit 2.
4. The radio wave is output to the base station via the PCM codec unit 20, the ADPCM codec unit 21, the channel control unit 22, and the radio unit 23. Thereby, the audio signal collected by the microphone 6 of the wireless handset 4 can be transmitted to the base station. When data is received, PDA1
Receives the radio wave from the base station by the radio unit 23. The received data is detected by the channel control unit 22 and sent to the CPU 14 via the data input / output control unit 19 for processing. At the time of data transmission, the processing data of the CPU 14 is converted into data for transmission by the data input / output control unit 19, and then transmitted to the base station via the channel control unit 22 and the radio unit 23. As described above, according to the system configuration of FIG. 1, data communication can be performed by the PDA 1 alone, and voice communication can be performed by connecting the PDA 1 to the wireless communication without connecting a headset or the like to the PDA 1 by a cable. This can be performed by using the wireless transmission and reception of the audio signal with the handset 4. In this case, wireless communication with the handset 4 can be realized by weak radio waves. For this reason, the PDA 1 is stored in a bag
The voice communication can be executed using the wireless communication function of the DA1.
DA can be realized. Next, a second embodiment of the present invention will be described with reference to FIG. The PDA main body 1 has a data processing unit for performing data processing, as in the first embodiment of FIG.
It comprises a first wireless communication unit for performing mobile communication, and a second wireless communication unit for exchanging voice signals with the wireless handset 4. The data processing unit includes a CPU 14 for controlling the entire operation of the PDA 11, a memory 15 for storing programs and information for operating the CPU 14,
A secondary storage device 16 composed of magnetic storage devices such as D and FDD, a display controller 17 for controlling a liquid crystal display (LCD) 3 used as a display monitor of the PDA 11, a coordinate input device 18 for inputting coordinates with a pen, And a battery 33 and the like. The first wireless communication section includes a transmission / reception amplifier, a filter, an antenna, etc., a radio section 23 for transmitting and receiving radio signals, a microcomputer, a frequency control section, a channel control section 22 including a signal modulation / demodulation section, PCM codec unit 20 for converting a PCM signal to an ADPCM codec unit 21 for converting a PCM signal to an ADPCM signal
Consists of An interface for data communication between the first wireless communication unit and the data processing unit is performed by the data input / output control unit 19. The second wireless communication unit includes an audio signal codec unit 24 that modulates an audio signal into a signal that can be transmitted by radio waves and demodulates the audio signal from the radio waves, a transmission / reception amplifier, a filter, an antenna, and the like. Be composed. Transmission and reception of audio signals between the first wireless communication unit and the second wireless communication unit are realized by a bidirectional interface between the PCM codec unit 20 and the audio signal codec unit 24. The wireless handset 4 includes a transmission / reception amplifier, a filter, an antenna, etc., a radio section 26 for transmitting and receiving radio signals, an audio signal codec section 27 for modulating an audio signal into a signal capable of being transmitted by radio waves and demodulating an audio signal from the radio waves. , Battery 34, speaker 5, microphone 6, LC
D9, Button (10 keys) for realizing telephone function 1
0, a microcomputer 28 for input / output control of the LCD 9 and the button 10 is provided. The button 10 corresponds to a touch-tone button of a normal portable telephone. When the button 10 is operated, the microcomputer 28 displays button information such as the telephone number of the other party on the LCD 9 and simultaneously displays the button information. The audio signal is transmitted to the PDA 1 via the audio signal codec unit 27 and the wireless unit 26 in the same manner as the audio signal. The PDA 1 receives radio waves from the wireless handset 4 by the radio unit 25, detects button information by the audio signal codec unit 24, converts the button information by the data input / output control unit 19 into information that can be processed by the CPU 14, Processes the button information. In this button information processing, for example, a dialing process is performed. The dialing process is performed by the CPU 14 instructing the microcomputer of the channel control unit 22 to execute the button information. In the PDA 1, response information as a result of executing the button information of the wireless handset 4 or information relating to the telephone function is sent from the CPU 14 or the microcomputer of the channel control unit 22 to the data input / output control unit 19, where the wireless input / output control unit 19 transmits the wireless information. Microcomputer 2 of handset 4
After being converted into information that can be processed, the radio signal is transmitted to the wireless handset 4 via the audio signal codec unit 24 and the radio unit 25. The wireless handset 4 includes a radio unit 26
Receives the radio wave from the PDA 1 and sends it to the microcomputer 28 via the audio signal codec unit 27. Microcomputer 28
Displays the received information on the LCD 9 as necessary. As described above, the wireless communication between the PDA 1 and the wireless handset 4 can include not only voice signals but also dial button information for realizing voice communication. FIG. 4 shows a configuration example of a stylus 101 for realizing the wireless handset 4 of FIG. The internal circuit of the stylus pen 101 is roughly divided into a pen function circuit unit and a communication unit. The pen function circuit is a circuit for causing the stylus pen 101 to function as a pointing device, and includes a coil 302 and an AC current generation circuit 303. The circuit including the coil 302 and the AC current generating circuit 303 is always on regardless of whether the pen switch 301 is on or off, and generates an AC magnetic field from the tip of the pen switch 301. The frequency of the AC magnetic field is controlled by the microcomputer 28. The communication unit includes the LCD 9, the button 10, the audio signal codec unit 27, the wireless unit 26, the speaker 102, the microphone 103, and the antenna 104. Next, a third embodiment of the present invention will be described with reference to FIG. The third embodiment is an example in which the communication function of the PDA 1 in the first or second embodiment is realized by the PC card 11. That is, the PDA main body 1 is constituted by a data processing section for performing data processing. The data processing unit is a CPU that controls the entire operation of the PDA 11.
14, a memory 15 serving as a storage unit for storing programs and information for operating the CPU 14, a secondary storage device 16 including a magnetic storage device such as an HDD or FDD, and a PD
A display controller 1 for controlling a liquid crystal display (LCD) 3 used as a display monitor of A11
7. Coordinate input device 18 for inputting coordinates by pen, P
It comprises a C card interface unit 30, a 68-pin PC card connector 31 conforming to PCMCIA, a battery 33, and the like. As shown in FIG. 6, the PC card 11 is removably mounted in a PC card slot 13 of the PDA main body 1, and its extension section 12 has two antennas for wireless communication. Is provided. The PC card 11 is a PC card slot 1
3, a PC card connector 32 connected to the connector 31 when attached to the host interface 29, a first wireless communication unit for performing mobile communication, and a second wireless communication unit for exchanging audio signals with the wireless handset 4. It is composed of a wireless communication unit. The first wireless communication unit includes a transmission / reception amplifier, a filter, an antenna, etc., a radio unit 23 for transmitting and receiving radio signals, a microcomputer, a frequency modulation unit, a channel control unit 22 composed of a signal modulation / demodulation unit, and a voice signal. PCM codec unit 20 for converting a PCM signal to an ADPCM codec unit 21 for converting a PCM signal to an ADPCM signal
Consists of The second wireless communication unit includes an audio signal codec unit 24 for modulating an audio signal into a signal that can be transmitted by radio waves and demodulating the audio signal from the radio waves, a transmission / reception amplifier, a filter,
It comprises a radio unit 25 that includes an antenna and transmits and receives radio signals. Transmission and reception of voice signals between the first wireless communication unit and the second wireless communication unit are realized by a bidirectional interface between the PCM codec unit 20 and the voice signal codec unit 24. Further, the first and second wireless communication units and the PD
Communication with A1 is performed by the data input / output control unit 19. Transmission and reception of a voice signal and a data signal between the base station and the wireless handset 4 are performed in the same manner as in the first and second embodiments. As described above, according to the present invention, the first wireless communication unit for communication with the base station and the second wireless communication for communication between the handset and the handset. A communication unit is provided, and data communication can be performed by the portable information device alone. For voice communication, the second wireless communication can be performed without connecting a headset or the like to the portable information device with a cable. This can be performed using wireless transmission and reception of a voice signal between the communication unit and the handset. Therefore, voice communication can be performed using the wireless communication function of the portable information device while the portable information device is housed in a bag or the like, and the portable information device suitable for both data and voice communication can be performed. Can be realized.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a configuration of a portable information device and a wireless handset according to an embodiment of the present invention. FIG. 2 is an exemplary view schematically showing the appearance of each of the portable information device and the wireless handset of the embodiment. FIG. 3 is a block diagram showing a configuration of a portable information device and a wireless handset according to a second embodiment of the present invention. FIG. 4 is a diagram showing a configuration of a stylus used as a wireless handset of the second embodiment. FIG. 5 is a block diagram showing a configuration of a portable information device and a wireless handset according to a third embodiment of the present invention. FIG. 6 is an external view showing a state where a PC card is attached to the portable information device in the third embodiment. [Description of Signs] 1 ... PDA main body, 4 ... Wireless handset, 5 ... Speaker, 6 ... Microphone, 20 ... PCM codec,
Reference numeral 21: ADPCM codec unit, 22: channel control unit, 23: radio unit, 24: audio signal codec unit, 25
... Radio section, 26 radio section, 27 audio signal codec section.

──────────────────────────────────────────────────の Continued on front page (51) Int.Cl. ⁷ identification code FI H04B 7/26 H04B 7/26 A (58) Investigated field (Int.Cl. ⁷ , DB name) H04Q 7/38 H04B 7 / 24-7/26 H04Q 7/00-7/38 H04M 1/00-1/253 H04M 1/58-1/82 H04M 11/00-11/10 G06F 15/02-15/14 G06F 3/03

Claims (1)

(57) [Claims] [Claim 1] Input device, arithmetic processing device and display device
Cards for battery-powered portable information devices with
It is configured to be attachable to a lot, and
Communication IC card that controls wireless communication with
Between the base station and the portable information device.
Voice communication between a first wireless communication means for performing wireless communication and an external wireless handset provided with a handset.
A second wireless communication means for performing wireless communication; and a second wireless communication means provided between the first and second wireless communication means;
Voice from the base station received by the first wireless communication means
Transmitting a signal to the second wireless communication means,
Sound from the wireless handset received by line communication means
An interface for transmitting a voice signal to the first wireless communication means;
Voice means for communicating with the base station by the wireless handset.
Communication IC characterized in that communication can be performed.
card.