JPH10285074A - Portable information terminal equipment with communication function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent mutual interference in the case of simultaneous communication with respect to the information portable terminal equipment having plural communication functions such as radio communication and infrared ray communication. SOLUTION: The information portable terminal equipment having a communication function is provided with an arbitration circuit 52 that uses a controller 38 of a PHS section 30 to detect a transmission reception slot of PHS communication in the case of conducting simultaneously infrared ray communication and radio communication and controls a controller 18 in an infrared ray section 10 so as not to give effect on other communication state in the case of transmission by both the communication methods. Thus, the simultaneous communication is conducted without causing deteriorated communication.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable information terminal having a plurality of communication functions, such as wireless communication and infrared communication, for reducing the influence of mutual interference occurring during simultaneous communication.

[0002]

2. Description of the Related Art In a conventional portable information terminal having a plurality of communication functions such as wireless communication and infrared communication, mutual interference occurs at the time of simultaneous communication. Was banned. Alternatively, even when simultaneous communication is performed, the communication quality is degraded due to the influence of mutual interference.

[0003]

As described above, at the time of simultaneous communication in an information portable terminal having a plurality of communication functions such as wireless communication and infrared communication, a large transmission power is used during a transmission operation, so that one of the transmission timings is set. When the transmission or reception timing period coincides with the other transmission or reception timing period, there is a problem that both or one of the communication functions is deteriorated.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, an information portable terminal having a communication function according to the present invention is arranged such that one transmission / reception timing does not coincide with the other transmission / reception timing based on one transmission / reception timing. In addition, the transmission / reception timing of one of them is controlled to eliminate mutual interference that has occurred at the time of mutual communication.

In order to solve the above-mentioned problems, the portable information terminal having a communication function according to the present invention distinguishes between a ground for an infrared section and a ground for wireless communication, and is generated at the time of mutual simultaneous communication. It is characterized by eliminating mutual interference.

According to the present invention, at the time of simultaneous communication, one transmission timing does not coincide with the other transmission and reception timing, so that communication deterioration does not occur.

Further, according to the present invention, the influence of one transmission upon simultaneous communication reduces the influence on the other communication state.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention provides a method for transmitting and receiving wireless communication and infrared communication at the same time even when simultaneously operating TDMA wireless communication and ASK or IrDA infrared communication. By controlling the transmission and reception timing, one transmission and reception timing is controlled so that both transmission timings do not coincide with the other transmission and reception timing by one transmission and reception transmission timing. Eliminating mutual interference that has occurred during simultaneous communication has the effect of preventing communication degradation.

According to a second aspect of the present invention, there is provided a FIFO circuit having a transmission data buffer function and a transmission / reception switching function;
A first modulator unit having a function of converting serial data of a circuit output into data of an infrared communication system, a light emitting unit for converting the data into infrared light which is a transmission signal, and an infrared communication system which converts a reception signal of infrared light into an infrared communication system A light receiving unit that converts the data into data, a first demodulator unit that converts the data into serial data and outputs the serial data to the FIFO circuit, and a first controller that controls infrared communication with an external first control signal. An infrared communication unit, an audio codec unit that encodes an audio signal input from a microphone, a channel codec unit that performs speed conversion, scrambling, packet assembly, confidential operation, and the like on the encoded data; A second modulation circuit unit that converts the baseband signal into a compressed baseband signal; and upconverts the baseband signal into a carrier signal to form a transmission signal. A radio transmitting unit, a radio receiving unit that down-converts a received signal into a baseband signal, a demodulation circuit unit that converts the baseband signal into a digital signal, and a radio communication unit that controls radio communication with an external second control signal and TDMA wireless communication device consisting of a second controller that detects the transmission and reception status of the TDMA system, a CPU that controls all functions, a memory for communication data, and the simultaneous use of infrared communication and wireless communication. During communication, an arbitration circuit unit having a function of adjusting the timing of infrared communication with the other party so that mutual interference does not occur due to transmission / reception timing data of wireless communication from the second controller,
The channel codec section performs de-polarization, packet disassembly, descrambling, and speed conversion of the demodulated signal, and the audio codec section decodes the demodulated signal into an audio signal and outputs the signal to a microphone. One transmission / reception signal timing controls one transmission / reception timing so that one transmission timing does not match the other transmission / reception timing, thereby eliminating mutual interference at the time of simultaneous simultaneous communication and preventing communication deterioration. Have.

According to a third aspect of the present invention, there is provided a FIFO circuit having a transmission data buffer function and a transmission / reception switching function;
A first modulator unit having a function of converting serial data of a circuit output into data of an infrared communication system, a light emitting unit for converting the data into infrared light which is a transmission signal, and an infrared communication system which converts a reception signal of infrared light into an infrared communication system A light receiving unit that converts the data into data, a first demodulator unit that converts the data into serial data and outputs the serial data to the FIFO circuit, and a first controller that controls infrared communication with an external first control signal. An infrared communication unit, a modem for modulating output serial data to deemed voice, a voice codec for coding the deemed voice signal, speed conversion to the coded data, scrambling, packet assembly, confidential operation, etc. A channel codec unit for performing a digital signal, a second modulation circuit unit for converting the digital signal into a band-compressed baseband signal, A radio transmitting unit that up-converts the received signal into a carrier signal to convert the received signal into a transmission signal; a radio receiving unit that down-converts the received signal into a base band signal; a demodulation circuit unit that converts the base band signal into a digital signal; A TDMA wireless communication device including a second controller that controls wireless communication with a second control signal and detects a transmission or reception state to the outside, a CPU that controls all functions, and a communication data communication device. Arbitration for adjusting the timing of infrared communication with the other party so that mutual interference does not occur due to the transmission / reception timing data of the wireless communication from the second controller during simultaneous communication between the infrared communication and the wireless communication. A circuit unit, wherein the channel codec unit performs de-speaking of the demodulated signal, packet disassembly, descrambling, speed conversion, and the like. The audio codec unit decodes the ratio-limited digital data output by the voice codec unit into deemed voice, and the modem unit converts the deemed voice into received digital data. One of the transmission and reception timings is controlled so that the transmission timing does not match the transmission and reception timing of the other, so that it is possible to eliminate mutual interference at the time of simultaneous communication and to prevent communication deterioration.

According to a fourth aspect of the present invention, there is provided a FIFO circuit having a transmission data buffer function and a transmission / reception switching function,
A first modulator unit having a function of converting serial data of a circuit output into data of an infrared communication system, a light emitting unit for converting the data into infrared light which is a transmission signal, and an infrared communication system which converts a reception signal of infrared light into an infrared communication system A light receiving unit that converts the data into data, a first demodulator unit that converts the data into serial data and outputs the serial data to the FIFO circuit, and a first controller that controls infrared communication with an external first control signal. An infrared communication unit, and an ARQ circuit unit having a function of dividing the input unrestricted digital signal into packets at slot timings that can be processed by the next-stage channel codec unit;
A channel codec unit for performing speed conversion, scrambling, packet assembly, confidential operation, etc. on the digital data;
A second modulation circuit unit that converts the digital signal into a band-compressed baseband signal, a radio transmission unit that up-converts the baseband signal into a carrier signal and converts the signal into a transmission signal, and converts the reception signal into a baseband signal A radio receiving unit for down-conversion, a demodulation circuit unit for converting the baseband signal into a digital signal, and a second unit for controlling radio communication with an external second control signal and detecting a transmission or reception state to the outside. TD composed of various controllers
A wireless communication device of the MA system, a CPU for controlling all functions, a memory for communication data, and a transmission / reception timing data of the wireless communication from the second controller when the infrared communication and the wireless communication are simultaneously performed. To prevent interference, an arbitration circuit for adjusting the timing of infrared communication with the other party is provided, and the channel codec performs confidential cancellation of the demodulated signal, packet disassembly, descrambling, speed conversion, etc., and the ARQ The circuit section outputs an unrestricted digital signal.One transmission / reception timing is controlled by one transmission / reception timing so that one transmission timing does not coincide with the other transmission / reception timing. This has the effect of eliminating mutual interference during communication and not causing communication deterioration.

According to a fifth aspect of the present invention, even when the TDMA wireless communication and the ASK or IrDA infrared communication are simultaneously operated, mutual interference does not occur by distinguishing between the wireless communication and the infrared communication ground. The invention according to claim 6, wherein a FIFO circuit having a transmission data buffer function and a transmission / reception switching function, and having a function of converting serial data output from the FIFO circuit into data of an infrared communication system. One modulator unit, a light-emitting unit that converts the data into infrared light that is a transmission signal, a light-receiving unit that converts infrared light that is a reception signal into infrared communication data, and the FIFO that converts the data into serial data. A first demodulator unit for outputting to a circuit, an infrared communication unit including a first controller for controlling infrared communication with an external first control signal, and an input from a microphone An audio codec for encoding the encoded audio signal; a channel codec for performing speed conversion, scrambling, packet assembly, confidential operation, etc. on the encoded data; and converting the digital signal to a band-compressed baseband signal. A second modulation circuit section, a radio transmission section that up-converts the baseband signal into a carrier signal to convert it to a transmission signal, a radio reception section that downconverts a reception signal to a baseband signal, and digitally converts the baseband signal. A TDMA wireless communication device having a demodulation circuit that converts the signal into a signal, a second controller that controls wireless communication with an external second control signal and detects transmission and reception states to the outside, and all functions CP to control
U, and a memory for communication data, wherein the channel codec performs de-polarization, packet disassembly, descrambling, speed conversion, and the like of the demodulated signal, and the voice codec decodes this into a voice signal, And the ground for the infrared communication unit is distinguished from the ground for the wireless communication unit, so that there is no mutual interference even when the infrared communication and the wireless communication are performed simultaneously. In addition, even if the infrared communication and the wireless communication are performed at the same time, there is an effect that mutual interference does not occur.

According to a seventh aspect of the present invention, there is provided a FIFO circuit having a transmission data buffer function and a transmission / reception switching function;
A first modulator unit having a function of converting serial data of a circuit output into data of an infrared communication system, a light emitting unit for converting the data into infrared light which is a transmission signal, and an infrared communication system which converts a reception signal of infrared light into an infrared communication system A light receiving unit that converts the data into data, a first demodulator unit that converts the data into serial data and outputs the serial data to the FIFO circuit, and a first controller that controls infrared communication with an external first control signal. An infrared communication unit, a modem for modulating output serial data to deemed voice, a voice codec for coding the deemed voice signal, speed conversion to the coded data, scrambling, packet assembly, confidential operation, etc. A channel codec unit for performing a digital signal, a second modulation circuit unit for converting the digital signal into a band-compressed baseband signal, A radio transmitting unit that up-converts the received signal into a carrier signal to convert the received signal into a transmission signal; a radio receiving unit that down-converts the received signal into a base band signal; a demodulation circuit unit that converts the base band signal into a digital signal; A TDMA wireless communication device including a second controller that controls wireless communication with a second control signal and detects a transmission or reception state to the outside, a CPU that controls all functions, and a communication data communication device. The channel codec unit performs de-polarization, packet disassembly, descrambling, speed conversion, and the like of the demodulated signal, and decodes the output ratio-limited digital data into the deemed voice by the voice codec unit. And the modem unit converts the deemed voice into received digital data, and a ground for the infrared communication unit and a ground for the wireless communication unit. By distinguishing between grounds, mutual interference does not occur during simultaneous communication between infrared communication and wireless communication, and has the effect that mutual interference does not occur during simultaneous communication between infrared communication and wireless communication. .

The invention according to claim 8 is a FIFO circuit having a transmission data buffer function and a transmission / reception switching function;
A first modulator unit having a function of converting serial data of a circuit output into data of an infrared communication system, a light emitting unit for converting the data into infrared light which is a transmission signal, and an infrared communication system which converts a reception signal of infrared light into an infrared communication system A light receiving unit that converts the data into data, a first demodulator unit that converts the data into serial data and outputs the serial data to the FIFO circuit, and a first controller that controls infrared communication with an external first control signal. An infrared communication unit, and an ARQ circuit unit having a function of dividing the input unrestricted digital signal into packets at slot timings that can be processed by the next-stage channel codec unit;
A channel codec unit for performing speed conversion, scrambling, packet assembly, confidential operation, etc. on the digital data;
A second modulation circuit unit that converts the digital signal into a band-compressed baseband signal, a radio transmission unit that up-converts the baseband signal into a carrier signal and converts the signal into a transmission signal, and converts the reception signal into a baseband signal A radio receiving unit for down-conversion, a demodulation circuit unit for converting the baseband signal into a digital signal, and a second unit for controlling radio communication with an external second control signal and detecting a transmission or reception state to the outside. TD composed of various controllers
A wireless communication device of the MA system, a CPU for controlling all functions, and a memory for communication data are provided, and the channel codec unit performs confidential cancellation of the demodulated signal, packet disassembly, descrambling, speed conversion, etc. The ARQ circuit section outputs an unrestricted digital signal, and distinguishes the ground for the infrared communication section from the ground for the wireless communication section so that mutual interference does not occur during simultaneous communication of infrared communication and wireless communication. And operates so as not to cause mutual interference during simultaneous communication between infrared communication and wireless communication.

An embodiment of the present invention will be described below with reference to FIGS. (Embodiment 1) Embodiments of the invention described in claims 1 and 2 of the present invention will be described with reference to FIGS.

FIG. 1 is a block diagram of a portable information terminal having a voice communication using PHS and an infrared communication function of the IrDA system. A FIFO circuit 11 having a buffer function of transmission data 19 and a transmission / reception switching function, a first modulator unit 12 having a function of converting serial data output from the FIFO circuit into IrDA data, and transmitting the data with a transmission signal. A light-emitting unit 14 for converting infrared light, which is a received signal, into a IrDA data; a first demodulator unit 13 for converting the data into serial data and outputting the serial data to the FIFO circuit 11 An infrared communication unit 10 including a first controller 18 that controls infrared communication with an external first control signal 20, an audio codec unit 39 that encodes an audio signal input from a microphone 40, A channel codec section 31 for performing speed conversion, scrambling, packet assembly, confidential operation, etc. on the encoded data; A second modulation circuit 32 for converting a signal, the radio transmission unit 34 baseband signal is up-converted to carrier signal to transmit the signal
A radio receiving unit 35 for down-converting a received signal to a baseband signal, a demodulation circuit unit 33 for converting the baseband signal to a digital signal, It has a configuration in which it performs descrambling, speed conversion, etc., decodes it into an audio signal in the audio codec unit 39, and outputs it to the microphone unit 41, controls wireless communication with an external second control signal, and transmits it to the outside. And a PHS unit 30 having a second controller 38 for detecting a reception state, a CPU 50 for controlling all functions, and a memory 5 for communication data.
1 and a function of adjusting the timing of infrared communication with the other party so that mutual interference does not occur due to the wireless communication transmission / reception timing data 53 from the second controller 38 during simultaneous communication of infrared communication and wireless communication. An arbitration circuit unit 52 including: It is composed of the above blocks.

FIGS. 4 (a) and 4 (b) are a timing control flowchart of the IrDA infrared communication unit and an explanatory diagram of the mutual timing relationship. When using IrDA infrared communication,
Perform "determine whether PHS is already in use" 62. If not, use "normal IrDA operation mode" (6
In 3), if it is in use, the mode shifts to the simultaneous communication mode. In the simultaneous communication mode, “determine the timing at which PHS / IrDA simultaneous communication is possible from the PHS transmission slot synchronization signal and the reception slot synchronization signal” (64), and “establish a session with the partner device” (6).
5) Then "Detect the fastest transmission speed that both devices can support"
(66), "Determine the communication timing and data length of the partner device from the results of 64 and 65" (67), "Transmit the timing and data length to the partner device" (68), and "Start IrDA communication" (69). FIG. 4B shows a state where the timing is set so that one of the communications does not operate during the transmission between the PHS and the IrDA.

(Embodiment 2) An embodiment of the invention described in claims 1 and 3 of the present invention will be described with reference to FIGS.

FIG. 2 shows a deemed voice communication using PHS and IrD.
1 is a block diagram of a portable information terminal having an A-type infrared communication function. A FIFO circuit 11 having a buffer function of transmission data 19 and a transmission / reception switching function, a first modulator section 12 having a function of converting serial data output from the FIFO circuit into IrDA infrared communication data, and A light-emitting unit 14 for converting infrared light, which is a transmission signal, a light-receiving unit 15 for converting infrared light, which is a reception signal, to IrDA infrared communication data; and
A first demodulator section 13 for outputting to the FIFO circuit; an infrared communication section 10 including a first controller 18 for controlling infrared communication with an external first control signal 20; Modem 42 for modulating
And an audio codec unit 39 for encoding the deemed audio signal; and speed conversion, scrambling,
A channel codec section 31 for performing packet assembly, confidential operation, etc., a second modulation circuit section 32 for converting the digital signal into a band-compressed baseband signal, and up-converting the baseband signal into a carrier signal for transmission A radio transmission unit 34 for converting the received signal into a baseband signal; a radio reception unit 35 for downconverting the received signal to a baseband signal; and a demodulation circuit unit 3 for converting the baseband signal into a digital signal.
3, the demodulated signal is de-confined, de-packetized, descrambled, and speed-converted by the channel codec, and the output codec unit 31 decodes the output ratio-limited digital data into deemed voice. The modem unit 4 for converting voice into received digital data
2, a PHS unit having a second controller 38 for controlling wireless communication with an external second control signal 53 and detecting transmission and reception states to the outside, and C for controlling all functions.
The PU 20, the memory 51 for communication data, and the other party so that mutual interference does not occur due to transmission / reception timing data of the PHS communication from the second controller 38 at the time of simultaneous IrDA infrared communication and PHS communication. The arbitration circuit unit 52 having a function of adjusting the timing of infrared communication with the side is constituted by the above blocks.

FIGS. 4A and 4B are a timing control flowchart of the IrDA infrared communication unit and an explanatory diagram of the mutual timing relationship. When using IrDA infrared communication,
Perform "determine whether PHS is already in use" 62. If not, use "normal IrDA operation mode" (6
In 3), if it is in use, the mode shifts to the simultaneous communication mode. In the simultaneous communication mode, “determine the timing at which PHS / IrDA simultaneous communication is possible from the PHS transmission slot synchronization signal and the reception slot synchronization signal” (64), and “establish a session with the partner device” (6).
5) Then "Detect the fastest transmission speed that both devices can support"
(66), "Determine the communication timing and data length of the partner device from the results of 64 and 65" (67), "Transmit the timing and data length to the partner device" (68), and "Start IrDA communication" (69). FIG. 4B shows a state where the timing is set so that one of the communications does not operate during the transmission between the PHS and the IrDA.

(Embodiment 3) An embodiment of the present invention described in claims 1 and 4 of the present invention will be described with reference to FIGS.

FIG. 3 is a block diagram of an information portable terminal having an unrestricted digital signal communication using the PHS and an infrared communication function of the IrDA system. A FIFO circuit 11 having a transmission data buffer function and a transmission / reception switching function, a first modulator section 12 having a function of converting serial data output from the FIFO circuit into IrDA infrared communication data, and transmitting the data. A light emitting unit 14 for converting infrared light as a signal, a light receiving unit 15 for converting infrared light as a received signal into IrDA infrared communication data, and a first light converting unit for converting the data into serial data and outputting the serial data to the FIFO circuit A demodulator section 13, an infrared communication section 10 composed of a first controller 18 for controlling infrared communication with an external first control signal, and an input unrestricted digital signal processed by a next-stage channel codec section. An ARQ circuit unit 43 having a function of dividing a packet into slot timings that can be converted into a digital data; A second codec section 32 for converting the digital signal into a band-compressed baseband signal, and a radio transmission for up-converting the baseband signal into a carrier signal to generate a transmission signal. Part 34
A radio receiving unit 37 for down-converting a received signal to a baseband signal; a demodulation circuit unit 33 for converting the baseband signal to a digital signal; It has a configuration for performing descrambling, speed conversion, etc., and outputting an unlimited digital signal in the ARQ circuit section 43,
A PHS section having a second controller 38 that controls wireless communication with an external second control signal and detects transmission and reception states to the outside, and a CPU 50 that controls all functions;
The memory 51 for communication data and the infrared communication with the other party so that mutual interference does not occur due to PHS transmission / reception timing data from the second controller 38 during simultaneous communication of IrDA infrared communication and PHS communication. The arbitration circuit unit 52 having the function of adjusting the timing of the above is constituted by the above blocks.

FIGS. 4A and 4B are a timing control flowchart of the IrDA infrared communication unit and an explanatory diagram of the mutual timing relationship. When using IrDA infrared communication,
Perform "determine whether PHS is already in use" 62. If not, use "normal IrDA operation mode" (6
In 3), if it is in use, the mode shifts to the simultaneous communication mode. In the simultaneous communication mode, “determine the timing at which PHS / IrDA simultaneous communication is possible from the PHS transmission slot synchronization signal and the reception slot synchronization signal” (64), and “establish a session with the partner device” (6).
5) Then "Detect the fastest transmission speed that both devices can support"
(66), "Determine the communication timing and data length of the partner device from the results of 64 and 65" (67), "Transmit the timing and data length to the partner device" (68), and "Start IrDA communication" (69). FIG. 4B shows a state where the timing is set so that one of the communications does not operate during the transmission between the PHS and the IrDA.

(Embodiment 4) An embodiment of the invention described in claims 5 and 6 of the present invention will be described with reference to FIG.

FIG. 5 is a block diagram showing a portable information terminal having a voice communication using PHS and an infrared communication function of the IrDA system. A FIFO circuit 11 having a buffer function of transmission data 19 and a transmission / reception switching function, a first modulator unit 12 having a function of converting serial data output from the FIFO circuit into IrDA data, and transmitting the data with a transmission signal. A light-emitting unit 14 for converting infrared light, which is a received signal, into a IrDA data; a first demodulator unit 13 for converting the data into serial data and outputting the serial data to the FIFO circuit 11 An infrared communication unit 10 including a first controller 18 that controls infrared communication with an external first control signal 20, an audio codec unit 39 that encodes an audio signal input from a microphone 40, A channel codec section 31 for performing speed conversion, scrambling, packet assembly, confidential operation, etc. on the encoded data; A second modulation circuit 32 for converting a signal, the radio transmission unit 34 baseband signal is up-converted to carrier signal to transmit the signal
A radio receiving unit 35 for down-converting a received signal to a baseband signal, a demodulation circuit unit 33 for converting the baseband signal to a digital signal, The audio codec unit 39 performs descrambling, speed conversion, and the like, decodes the audio signal into an audio signal, and outputs the audio signal to the microphone unit 41. The external second control signal 42 controls wireless communication and controls the external communication. A PHS unit 30 having a second controller 38 for detecting a transmission or reception state;
It comprises a CPU 50 for controlling all functions and a memory 51 for communication data.
By distinguishing the ground for the S unit 30, mutual interference does not occur at the time of simultaneous communication of infrared communication and wireless communication.

(Embodiment 5) Embodiments of the present invention described in claims 5 and 7 of the present invention will be described with reference to FIG.

FIG. 6 shows a deemed voice communication using PHS and IrD.
1 is a block diagram of a portable information terminal having an A-type infrared communication function. A FIFO circuit 11 having a buffer function of transmission data 19 and a transmission / reception switching function, a first modulator section 12 having a function of converting serial data output from the FIFO circuit into IrDA infrared communication data, and A light-emitting unit 14 for converting infrared light, which is a transmission signal, a light-receiving unit 15 for converting infrared light, which is a reception signal, to IrDA infrared communication data; and
A first demodulator section 13 for outputting to the FIFO circuit; an infrared communication section 10 including a first controller 18 for controlling infrared communication with an external first control signal 20; Modem 42 for modulating
And an audio codec unit 39 for encoding the deemed audio signal; and speed conversion, scrambling,
A channel codec section 31 for performing packet assembly, confidential operation, etc., a second modulation circuit section 32 for converting the digital signal into a band-compressed baseband signal, and up-converting the baseband signal into a carrier signal for transmission A radio transmission unit 34 for converting the received signal into a baseband signal; a radio reception unit 35 for downconverting the received signal to a baseband signal; and a demodulation circuit unit 3 for converting the baseband signal into a digital signal.
3, the demodulated signal is de-confined, de-packetized, descrambled, and speed-converted by the channel codec, and the output codec unit 31 decodes the output ratio-limited digital data into deemed voice. The modem unit 4 for converting voice into received digital data
2, a PHS unit having a second controller 38 for controlling wireless communication with an external second control signal 53 and detecting transmission and reception states to the outside, and C for controlling all functions.
It consists of a PU 20 and a memory 51 for communication data, and distinguishes a ground for the infrared communication unit 10 and a ground for the PHS unit 30 so as to prevent mutual interference during simultaneous IrDA infrared communication and PHS communication. Mutual interference is prevented by the transmission / reception timing data of the PHS communication from the second controller 38.

(Embodiment 6) Embodiments of the invention described in claims 5 and 8 of the present invention will be described with reference to FIG.

FIG. 7 is a block diagram of a portable information terminal having unrestricted digital signal communication using PHS and an infrared communication function of the IrDA system. A FIFO circuit 11 having a transmission data buffer function and a transmission / reception switching function, a first modulator section 12 having a function of converting serial data output from the FIFO circuit into IrDA infrared communication data, and transmitting the data. A light emitting unit 14 for converting infrared light as a signal, a light receiving unit 15 for converting infrared light as a received signal into IrDA infrared communication data, and a first light converting unit for converting the data into serial data and outputting the serial data to the FIFO circuit A demodulator section 13, an infrared communication section 10 composed of a first controller 18 for controlling infrared communication with an external first control signal, and an input unrestricted digital signal processed by a next-stage channel codec section. An ARQ circuit unit 43 having a function of dividing a packet into slot timings that can be converted into a digital data; A second codec section 32 for converting the digital signal into a band-compressed baseband signal, and a radio transmission for up-converting the baseband signal into a carrier signal to generate a transmission signal. Part 34
A radio receiving unit 37 for down-converting a received signal to a baseband signal; a demodulation circuit unit 33 for converting the baseband signal to a digital signal; It has a configuration for performing descrambling, speed conversion, etc., and outputting an unlimited digital signal in the ARQ circuit section 43,
A PHS section having a second controller 38 that controls wireless communication with an external second control signal and detects transmission and reception states to the outside, and a CPU 50 that controls all functions;
It consists of a memory 51 for communication data, and distinguishes the ground for the infrared communication unit 10 from the ground of the PHS unit 30 to eliminate mutual interference during simultaneous communication of IrDA infrared communication and PHS communication. Can be.

[0030]

As described above, according to the portable information terminal having a communication function of the present invention, one of the portable information terminals having a plurality of communication functions, such as wireless communication and infrared communication, performs simultaneous communication. By controlling the transmission / reception timing of one side so that the transmission timing of one side does not match the transmission / reception timing of the other, the mutual interference that has occurred during simultaneous simultaneous communication is eliminated, and the mutual interference that occurs during simultaneous communication is eliminated. An information portable terminal characterized by elimination can be provided.

According to the portable information terminal having a communication function of the present invention, the simultaneous communication in the portable information terminal having a plurality of communication functions, such as wireless communication and infrared communication,
By providing a distinction between the ground for infrared communication and the ground for PHS, we provide an information portable terminal that eliminates mutual interference that occurred during simultaneous communication and eliminates mutual interference that occurred during simultaneous communication. can do.

[Brief description of the drawings]

FIG. 1 is a block diagram of a portable information terminal according to Embodiment 1 of the present invention.

FIG. 2 is a block diagram of an information portable terminal according to Embodiment 2 of the present invention.

FIG. 3 is a block diagram of an information portable terminal according to Embodiment 3 of the present invention.

FIG. 4 is an explanatory diagram of control and transmission / reception in Embodiments 1, 2, and 3 of the present invention.

FIG. 5 is a block diagram of a personal digital assistant according to a fourth embodiment of the present invention.

FIG. 6 is a block diagram of a personal digital assistant according to a fifth embodiment of the present invention.

FIG. 7 is a block diagram of a personal digital assistant according to a sixth embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Infrared communication part 11 FIFO circuit part 12, 32 1st modulator, 2nd modulator 13, 33 1st demodulator, 2nd demodulator 14 Light emitting part 15 Light receiving part 16 Infrared transmission signal 17 Infrared reception signal 18, 38 First controller, second controller 19 Serial data 20, 42 First control signal, second control signal 30 PHS section 31 Channel codec 34 Transmitting section 35 Receiving section 36 PHS transmitting signal 37 PHS receiving signal 39 Audio codec 40 Speaker 41 Microphone 42 Modem 43 ARQ circuit 50 CPU 51 Memory 52 Arbitration circuit 53 Transmission / reception timing signal 61 Infrared ground 62 Wireless communication ground

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI H04B 10/10 10/22

Claims (8)

[Claims] 1. TDMA wireless communication and ASK or I
An information portable terminal characterized by preventing mutual interference by controlling transmission / reception timing of wireless communication and infrared communication even when simultaneously operating rDA infrared communication. 2. A FIFO circuit having a transmission data buffer function and a transmission / reception switching function, a first modulator unit having a function of converting serial data output from the FIFO circuit into infrared communication data, and A light-emitting unit that converts infrared light that is a transmission signal, a light-receiving unit that converts infrared light that is a reception signal into data of an infrared communication system, and a first demodulator unit that converts the data into serial data and outputs the serial data to the FIFO circuit An infrared communication unit including a first controller that controls infrared communication with an external first control signal; an audio codec unit that encodes an audio signal input from a microphone; A channel codec unit for performing conversion, scrambling, packet assembly, confidential operation, etc., and a second modulation for converting the digital signal into a band-compressed baseband signal A circuit unit, a radio transmitting unit that up-converts the baseband signal into a carrier signal to convert the baseband signal to a carrier signal, a radio receiving unit that downconverts a received signal to a baseband signal, and converts the baseband signal into a digital signal Controls all functions, including a demodulation circuit section and a TDMA-based wireless communication device consisting of a second controller that controls wireless communication with an external second control signal and detects transmission and reception conditions to the outside CPU and
A memory for communication data, and at the same time of infrared communication and wireless communication, the timing of infrared communication with the other party is set so that mutual interference does not occur due to transmission / reception timing data of wireless communication from the second controller. An arbitration circuit unit having an adjusting function is provided, and the channel codec unit performs de-polarization, packet disassembly, descrambling, speed conversion, and the like of the demodulated signal, and the audio codec unit decodes this into an audio signal, and An information portable terminal characterized by being output to a personal digital assistant. 3. A FIFO circuit having a transmission data buffer function and a transmission / reception switching function, a first modulator unit having a function of converting serial data output from the FIFO circuit into infrared communication data, and A light-emitting unit that converts infrared light that is a transmission signal, a light-receiving unit that converts infrared light that is a reception signal into data of an infrared communication system, and a first demodulator unit that converts the data into serial data and outputs the serial data to the FIFO circuit And an infrared communication unit comprising a first controller for controlling infrared communication with an external first control signal, a modem for modulating output serial data to deemed voice, and encoding the deemed voice signal A voice codec unit, and a channel codec unit for performing speed conversion, scrambling, packet assembly, confidential operation, and the like on the encoded data,
A second modulation circuit unit that converts the digital signal into a band-compressed baseband signal, a radio transmission unit that up-converts the baseband signal into a carrier signal and converts the signal into a transmission signal, and converts the reception signal into a baseband signal A radio receiving unit for down-conversion, a demodulation circuit unit for converting the baseband signal into a digital signal, and a second unit for controlling radio communication with an external second control signal and detecting a transmission or reception state to the outside. TD composed of various controllers
A wireless communication device of the MA system, a CPU for controlling all functions, a memory for communication data, and a transmission / reception timing data of the wireless communication from the second controller when the infrared communication and the wireless communication are simultaneously performed. In order not to cause interference, an arbitration circuit for adjusting the timing of infrared communication with the other party is provided, and the channel codec performs confidential cancellation of the demodulated signal, packet disassembly, descrambling, speed conversion, etc. An information portable terminal characterized in that the output codec unit decodes the output ratio-limited digital data into deemed speech, and the modem unit converts the deemed speech into received digital data. 4. A FIFO circuit having a transmission data buffer function and a transmission / reception switching function, a first modulator unit having a function of converting serial data output from the FIFO circuit into data of an infrared communication system, and A light-emitting unit that converts infrared light that is a transmission signal, a light-receiving unit that converts infrared light that is a reception signal into data of an infrared communication system, and a first demodulator unit that converts the data into serial data and outputs the serial data to the FIFO circuit And an infrared communication unit composed of a first controller that controls infrared communication with an external first control signal, and packet division into slot timings at which an input unrestricted digital signal can be processed by the next-stage channel codec unit ARQ circuit unit having a function of performing a speed conversion, scrambling, packet assembly, secret operation, etc. on the digital data. A second modulation circuit unit for converting the digital signal into a band-compressed baseband signal; a radio transmission unit for up-converting the baseband signal into a carrier signal to generate a transmission signal; A radio receiver for down-converting to a signal,
A TDMA system comprising a demodulation circuit for converting the baseband signal into a digital signal, and a second controller for controlling wireless communication with an external second control signal and detecting a transmission or reception state to the outside Wireless communication device,
A CPU for controlling all functions, a memory for communication data, and a counterpart to prevent mutual interference due to wireless communication transmission / reception timing data from the second controller during simultaneous communication of infrared communication and wireless communication. Arbitration circuit unit for adjusting the timing of infrared communication with the side, the channel codec unit performs de-scramble of the demodulated signal, packet disassembly, descrambling, speed conversion, etc., and the ARQ
An information portable terminal characterized by outputting an unrestricted digital signal in a circuit section. 5. TDMA wireless communication and ASK or I
An information portable terminal characterized in that even if infrared communication of the rDA method is operated simultaneously, mutual interference does not occur by distinguishing the grounds of the wireless communication and the infrared communication. 6. A FIFO circuit having a transmission data buffer function and a transmission / reception switching function, a first modulator unit having a function of converting serial data output from the FIFO circuit into data of an infrared communication system, and A light-emitting unit that converts infrared light that is a transmission signal, a light-receiving unit that converts infrared light that is a reception signal into data of an infrared communication system, and a first demodulator unit that converts the data into serial data and outputs the serial data to the FIFO circuit An infrared communication unit including a first controller that controls infrared communication with an external first control signal; an audio codec unit that encodes an audio signal input from a microphone; A channel codec unit for performing conversion, scrambling, packet assembly, confidential operation, etc., and a second modulation for converting the digital signal into a band-compressed baseband signal A circuit unit, a radio transmitting unit that up-converts the baseband signal into a carrier signal to convert the baseband signal to a carrier signal, a radio receiving unit that downconverts a received signal to a baseband signal, and converts the baseband signal into a digital signal TDMA having a demodulation circuit section and a second controller for controlling wireless communication with an external second control signal and detecting a transmission or reception state to the outside
Wireless communication device, a CPU for controlling all functions, and a memory for communication data, and the channel codec section performs confidential release of the demodulated signal, packet disassembly, descrambling, speed conversion, and the like. The audio codec unit decodes the audio signal into an audio signal, which is output to the microphone unit. The ground for the infrared communication unit is distinguished from the ground for the wireless communication unit. An information portable terminal characterized by not causing interference. 7. A FIFO circuit having a transmission data buffer function and a transmission / reception switching function, a first modulator unit having a function of converting serial data output from the FIFO circuit into data of an infrared communication system, and A light-emitting unit that converts infrared light that is a transmission signal, a light-receiving unit that converts infrared light that is a reception signal into data of an infrared communication system, and a first demodulator unit that converts the data into serial data and outputs the serial data to the FIFO circuit And an infrared communication unit comprising a first controller for controlling infrared communication with an external first control signal, a modem for modulating output serial data to deemed voice, and encoding the deemed voice signal A voice codec unit, and a channel codec unit for performing speed conversion, scrambling, packet assembly, confidential operation, and the like on the encoded data,
A second modulation circuit unit that converts the digital signal into a band-compressed baseband signal, a radio transmission unit that up-converts the baseband signal into a carrier signal and converts the signal into a transmission signal, and converts the reception signal into a baseband signal A radio receiving unit for down-conversion, a demodulation circuit unit for converting the baseband signal into a digital signal, and a second unit for controlling radio communication with an external second control signal and detecting a transmission or reception state to the outside. TD composed of various controllers
A wireless communication device of the MA system, a CPU for controlling all functions, and a memory for communication data are provided, and the channel codec unit performs confidential cancellation of the demodulated signal, packet disassembly, descrambling, speed conversion, etc. The audio codec section decodes the ratio-limited digital data output by the voice codec section into deemed voice, the modem section converts the deemed voice into reception digital data, and sets the ground for the infrared communication section and the ground for the wireless communication section to An information portable terminal characterized in that mutual interference does not occur during simultaneous communication of infrared communication and wireless communication by distinguishing. 8. A FIFO circuit having a transmission data buffer function and a transmission / reception switching function, a first modulator section having a function of converting serial data output from the FIFO circuit into infrared communication data, and A light-emitting unit that converts infrared light that is a transmission signal, a light-receiving unit that converts infrared light that is a reception signal into data of an infrared communication system, and a first demodulator unit that converts the data into serial data and outputs the serial data to the FIFO circuit And an infrared communication unit composed of a first controller that controls infrared communication with an external first control signal, and packet division into slot timings at which an input unrestricted digital signal can be processed by the next-stage channel codec unit ARQ circuit unit having a function of performing a speed conversion, scrambling, packet assembly, secret operation, etc. on the digital data. A second modulation circuit unit for converting the digital signal into a band-compressed baseband signal; a radio transmission unit for up-converting the baseband signal into a carrier signal to generate a transmission signal; A radio receiver for down-converting to a signal,
A TDMA system comprising a demodulation circuit for converting the baseband signal into a digital signal, and a second controller for controlling wireless communication with an external second control signal and detecting a transmission or reception state to the outside Wireless communication device,
A CPU for controlling all functions and a memory for communication data are provided, and the channel codec performs de-polarization, packet disassembly, descrambling, speed conversion, and the like of the demodulated signal, which are not limited by the ARQ circuit. An information portable terminal, which outputs a digital signal and distinguishes between a ground for an infrared communication unit and a ground for a wireless communication unit so that mutual interference does not occur at the time of simultaneous communication between the infrared communication and the wireless communication. .