WO2004068755A1 - 無線通信装置及び無線通信方法 - Google Patents
無線通信装置及び無線通信方法 Download PDFInfo
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- WO2004068755A1 WO2004068755A1 PCT/JP2004/000825 JP2004000825W WO2004068755A1 WO 2004068755 A1 WO2004068755 A1 WO 2004068755A1 JP 2004000825 W JP2004000825 W JP 2004000825W WO 2004068755 A1 WO2004068755 A1 WO 2004068755A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
Definitions
- the present invention relates to a wireless communication apparatus used in a mobile telephone communication system or the like, and more particularly to a wireless communication apparatus and a wireless communication method for performing wireless communication in multiple channels.
- the conventional mobile phone system is configured to include a mobile terminal (mobile phone) 100 and a base station 200.
- the mobile terminal 100 is a transmitting unit 1 1, a receiving unit 1 2, a mixer 1 3, an antenna 1 4, a communication control unit 1 5, a crystal oscillator 16, a clock control unit 1 7, data control Section 2 2, Operation ⁇ Display section 2 3, Speaker 2 4 and Microphone 25 etc. are included.
- an audio signal corresponding to the user's voice output from the microphone 25 is supplied to the data control unit 22, and converted into audio data of a predetermined format.
- the voice data is converted into a transmission signal of a predetermined channel by the communication control unit 15, and the transmission signal is supplied to the transmission unit 11.
- the transmission unit 11 modulates a carrier wave (for example, 800 MHz band) of a frequency corresponding to the channel based on the transmission signal from the communication control unit 15 to generate a transmission signal. Then, the transmission signal is radiated from the antenna 14 through the mixer 13.
- a carrier wave for example, 800 MHz band
- the transmission signal radiated from the portable terminal 100 is received by the base station 200, it is demodulated and a transmission signal (voice signal) is generated from the carrier component of the frequency corresponding to the channel. It is separated. Then, the transmission signal is sent from the base station 200 via the predetermined communication network (mobile communication network, fixed telephone network, etc.) to the other terminal (mobile terminal, fixed telephone, etc.).
- a transmission signal voice signal
- the base station 200 acquires a signal (voice signal) from the partner terminal via a predetermined communication network, a carrier corresponding to a predetermined channel is used based on the signal. Modulate the frequency band from the frequency band) To generate a transmission signal. Then, the transmission signal is radiated from the antenna of base station 200.
- the transmission signal thus radiated from the base station 200 is received by the antenna 14 of the portable terminal, and is supplied as the reception signal to the reception unit 12 via the mixer 13.
- the receiver 12 sends the received signal to the communication controller 15.
- the communication control unit 15 detects the channel used by the base station 200 from the received signal and separates the transmission signal (voice signal) from the carrier component of the frequency corresponding to the channel.
- the transmission signal is supplied to the data control unit 22, and the data control unit 22 generates an audio signal from the supplied transmission signal, and drives the speaker 24 based on the audio signal. As a result, an audio output corresponding to the audio signal is made from the speaker 24.
- Processing in accordance with the above-described procedure enables voice communication between the portable terminal and the other party's terminal.
- the output clock from the crystal oscillator 16 is supplied to the communication control unit 15 via the clock control unit 17, and the communication control unit 15 is supplied A channel of a predetermined frequency interval defined based on the clock is set as the channel to be used. That is, as shown in FIG. 9, for the received wave, a single reception to be actually used from the reception channel group C HKX having a predetermined frequency interval from the head frequency (for example, 800 MHz) A channel is set. In addition, with regard to the transmission wave, a single transmission channel group C HTX having a predetermined frequency interval from a frequency separated by a predetermined frequency width (for example, 130 MHz) from the final frequency of the reception wave is actually used. A transmission channel is set.
- Patent Document 1 Japanese Patent Laid-Open Publication No. 1-136206
- the first input signal is phase-modulated to generate a phase modulation signal
- the second input signal is amplitude-modulated to generate an amplitude modulation signal
- the phase modulation signal and the amplitude modulation are generated. It is multiplied by the signal.
- the signal obtained by the multiplication is transmitted on a single channel.
- the wireless communication apparatus on the reception side acquires the first output signal corresponding to the first input signal by synchronously detecting the received signal, and performs the second input by detecting the envelope of the received signal. Second output signal corresponding to the signal You are getting According to such a conventional wireless communication apparatus, transmission and reception of two data strings are performed on a single channel, so that it is possible to improve the information transmission efficiency.
- the present invention has been made in view of such circumstances, and it is possible to further improve the information transmission efficiency with a simpler configuration, and to realize high-speed communication of video and wireless communication device and wireless communication. Intended to provide a method. Disclosure of the invention
- the wireless communication apparatus receives clock generation means for generating a plurality of clocks, and a plurality of transmission signals to be transmitted, and specifies them based on the plurality of clocks.
- Data signal generation means for setting a transmission channel to be used out of the group of transmission channels to be used, generating a plurality of data signals including each transmission signal associated with the set transmission channel, and
- a configuration comprising: multiplexing means for multiplexing a plurality of data signals generated by the data signal generation means to generate a transmission signal; and signal transmission means for wirelessly transmitting the transmission signal obtained by the multiplexing means. It becomes.
- the clock generation means can be configured to have a plurality of clock oscillators for individually generating a plurality of clocks.
- the clock generation means may generate a plurality of clocks from a clock output from a single oscillator using a method such as division.
- the wireless communication device has a video receiving means for outputting a video signal based on the captured video, and a video dividing means for dividing the video signal, and the data signal generating means is a divided video
- a signal is input as video data, and a transmission channel to be used is set from among transmission channel groups defined based on each of a plurality of clocks, and each video data set corresponding to the set transmission channel is set.
- a transmission channel to be used is set from among transmission channel groups defined based on each of a plurality of clocks, and each video data set corresponding to the set transmission channel is set.
- a wireless communication apparatus comprises clock generation means for generating a plurality of clocks, signal reception means for receiving a wirelessly transmitted signal and outputting a reception signal, and separating a plurality of data signals from the reception signal. And a channel correlating means for correlating each of the plurality of data signals obtained by the signal separating means with the used receiving channel of the receiving channel group defined by each of the plurality of clocks. And transmission signal extraction means for separating the transmission signal from the data signal associated with the reception channel to be used based on the plurality of clocks.
- the wireless communication device further comprises: video generation means for generating video data from the transmission signal obtained by the transmission signal extraction means; and video synthesis for synthesizing a plurality of video data to obtain a video signal. And means.
- video data can be generated from the extracted transmission signal, and a plurality of video data can be synthesized to obtain a video signal.
- multiplexed video data can be received by the wireless communication device, high-speed transmission of video between wireless communication devices can be realized.
- the wireless communication apparatus comprises a transmission generation unit for generating a plurality of clocks, a plurality of transmission signals to be transmitted, and a transmission channel group defined based on each of the plurality of clocks.
- Data signal generation means for generating a plurality of data signals including the respective transmission signals associated with the set transmission channels, and the data signal generation means
- multiplexing means for multiplexing a plurality of data signals to generate a transmission signal, signal transmission means for wirelessly transmitting the transmission signal obtained by the multiplexing means, and receiving a signal transmitted by radio, reception signal For each of the plurality of data signals obtained by the signal separation means, and signal separation means for separating the plurality of data signals from the reception signal.
- channel matching means for correlating the reception channel to be used among the reception channel group defined by each of the plurality of clocks, and data corresponding to the reception channel to be used based on the plurality of queries.
- transmission signal extraction means for separating the transmission signal from the signal.
- the wireless communication apparatus has a video receiving means for capturing a video and outputting a video signal, and a video dividing means for dividing the video signal, and the data signal generating means is a divided video signal.
- the apparatus comprises a video generation means for generating video data from the transmitted signal, and a video synthesis means for synthesizing a plurality of video data to obtain a video signal.
- a plurality of divided video data are multiplexed and transmitted using a plurality of transmission channels set from a transmission channel group defined by each of a plurality of clocks.
- a transmission signal corresponding to each reception channel is extracted from a reception signal including a plurality of reception channels, video data is generated from the transmission signal, and a wireless communication apparatus for obtaining a video signal by combining a plurality of video data is realized. It will be possible. Therefore, it is possible to realize high-speed communication by enabling multiplex transmission and reception of video data.
- a transmission channel to be used is set from among transmission channel groups defined based on each clock generated by a plurality of clock generation means, and each communication channel associated with the set transmission channel is set.
- a method of generating a plurality of data signals including each of the transmission signals multiplexing the plurality of data signals to generate a transmission signal, and wirelessly transmitting the transmission signal.
- a video signal based on the captured video is output, the video signal is divided, the divided video signal is input as a video data, and the clock generation means is used.
- a method of setting a transmission channel to be used from among a transmission channel group defined based on each generated clock, and generating a plurality of data signals including each of the video data associated with the set transmission channel is there.
- a wirelessly transmitted signal is received to generate a received signal, a plurality of delay signals are separated from the received signal, and each of a plurality of data signals is transmitted.
- a method of associating the use reception channel of the reception channel group defined by each of the plurality of clocks, and separating the transmission signal from the data signal corresponding to the use reception channel based on the plurality of clocks As.
- FIG. 1 is a block diagram showing the configuration of a wireless communication apparatus according to a first embodiment of the present invention.
- FIG. 2 is a block diagram showing a detailed configuration of the wireless communication apparatus shown in FIG.
- FIG. 3 is a diagram showing a reception channel group and a transmission channel group defined by four clocks.
- FIG. 4 is a block diagram showing the configuration of a wireless communication apparatus according to a second embodiment of the present invention.
- FIG. 5 is a block diagram showing a detailed configuration of the wireless communication apparatus shown in FIG.
- FIG. 6 is a diagram showing how an image is divided, associated with a channel used from among the channels defined by four clocks, and further combined.
- FIG. 7 is a diagram showing a configuration for realizing video communication by providing a conversion device in a base station.
- FIG. 8 is a diagram showing an example of a communication system including a conventional wireless communication apparatus.
- FIG. 9 is a diagram showing a reception channel group and a transmission channel group defined by a clock used in the wireless communication apparatus shown in FIG. BEST MODE FOR CARRYING OUT THE INVENTION
- the wireless communication apparatus is configured as shown in FIG.
- the wireless communication device is configured, for example, as a mobile telephone terminal.
- the wireless communication device 10a includes: a transmitter 11; a receiver 12; a mixer 13; an antenna 14; a communication controller 20; a data controller 22; Speed power 2 4, microphone 2 5, clock control unit 3 0 and 4 crystal oscillators 3 1 A, 3 1 B, 3 1 C, 3 ID.
- the four crystal oscillators 3 1 A, 3 1 B, 3 1 C and 3 1 D respectively generate their own clocks, and supply the clocks to the clock control unit 30.
- the clock controller 30 has a clock A (corresponds to the clock from the crystal oscillator 31 A), a clock B (corresponds to the clock from the crystal oscillator 31 B), and a clock C (crystal oscillator 31) at a predetermined timing.
- Transmission section (signal transmission means) 11 performs predetermined modulation processing on the multiplexed transmission signal from the communication control section 20, and transmits the multiplexed transmission signal after the modulation processing.
- the modulated multiplexed signal is emitted from the antenna 14 through the mixer 13.
- Reception unit (signal reception means) 12 sends a received signal from mixer 13 to communication control unit 20.
- the received signal is a signal transmitted to the base station 200 (see FIG. 8) and received by the antenna 14 at the antenna 14 and supplied to the receiver 12 via the mixer 13. .
- the data control unit 22 is a voice signal corresponding to the user's voice from the microphone 25 or a data signal supplied from the outside via the data input / output multi-connector 2 2 a (eg, an image, Supply the communication control unit 20 with Further, the data control unit 22 performs processing on the transmission signal supplied from the communication control unit 20. For example, if the transmission signal supplied from the communication control unit 20 relates to voice, the transmission signal is converted to a voice signal, and the voice signal is supplied to the speaker 2 4. If the transmission signal relates to data (for example, representing an image, characters, etc.), the transmission signal is converted into a delay signal, or is directly operated as a transmission signal and supplied to the display unit 23 or the outside. Be done.
- the communication control unit 20 has four clocks from the clock control unit 30, clock A, clock B, and clock (:: predetermined frequency intervals defined based on each of clock D (for example, 15 KHz to 2).
- clock D for example, 15 KHz to 2.
- a reception channel C HRX (An) to be actually used is set from C HRX (A), and a reception channel C HRX to be actually used from reception channel group C HRX (B) specified by clock B.
- Bn) is set, receive channel group C HRX (C) power specified by clock C, etc.
- receive channel C HRX (C n) to be actually used is set, receive channel specified by clock D Actual from the group C HRX (D)
- the reception channel C HRX (Dn) to be used for is set.
- transmission waves for example, 940 MHz band
- transmission channels CHTX (A) specified by clock A set transmission channels CHTX (An) to be actually used, transmission channels specified by clock B
- the transmission channel CHTX (Bn) to be actually used is set from CHTX (B)
- the transmission channel group CHTX (Cn) to be actually used from transmission channel group CHTX (C) specified by clock C Transmission channel group set and specified by clock D CH TX (D) power Transmission channel CHTX (Dn) to be actually used is set.
- the communication control unit 20 includes a data separation / multiplexing unit 201, a system logic 202, a data matrix 203, and a signal transmission processing unit 204.
- Data separation Z multiplexer (signal separation means) 201 separates four data signals from the received signal from the receiver 12.
- the system logic 202 corrects the distortion of each of the four data signals from the data demultiplexing unit 201 and supplies it to the data matrix 203.
- a data matrix (channel associating means) 203 receives reception channel groups CHRX (A) defined by clock A, clock B, clock C, and clock D for each of four data signals. Corresponds to 3 ⁇ 4 communication channel CHRX (An), CH RX (Bn), CHRX (Cn) and CHRX (Dn) among CHRX (B), CHRX (C) and CHRX (D) (setting of receiving channel) .
- a signal transmission processing unit (transmission signal extraction unit) 204 receives a clock signal from the data signal associated with each of the reception channels CHRX (A n), CHRX (Bn), CHRX (Cn), and CHRX (Dn). Based on the clock A, the clock B, the clock C, and the clock D, the transmission signal (for example, an audio signal) is separated, and the transmission signal is supplied to the data control unit 22.
- the transmission signal for example, an audio signal
- the signal transmission processing unit 204 inputs each transmission signal (for example, an audio signal etc.) to be transmitted from the data control unit 22, and the clock A, clock B, clock C, and clock D from the clock control unit 30. Based on the above, it generates a broadcast signal including four transmission signals.
- each transmission signal for example, an audio signal etc.
- the data matrix 203 is one of the data signals from the signal transmission processing unit 204.
- C HTX (A), C HTX (B), C HTX (C), C HTX (D) defined by clock A, clock B, clock C, and clock D, respectively.
- C HTX (An), C HTX (Bn), C HTX (Cn) and C HTX (Dn) correspond to the transmission channel C HTX (An), C HTX (Bn), C HTX (Cn) and C HTX (Dn) to be used (transmission channel setting).
- the system logic 202 applies the data matrix 203 to each data signal associated with the transmission channels C HTX (An), C HTX (Bn), C HTX (Cn) and C HTX (Dn). Performs processing such as waveform adjustment, and supplies each data signal to data demultiplexing unit 201.
- Data separation Z multiplexing unit (multiplexing unit) 201 multiplexes each supplied data signal to generate a transmission signal, and supplies the transmission signal to the transmission unit 11. For this reason, the transmission signal generated by the data separation Z multiplexing unit 201 is transmitted through the data matrix 203 as a transmit channel C HTX (An), C HTX (Bn), C HTX (Cn), C HTX Each data signal to which (Dn) has been assigned is four combined (or four mixed).
- this data separation multiplexer 201 the number of codes is increased (added) as compared to the prior art.
- the conventional portable terminal 100 only the crystal oscillator 16 is provided, and only the A band.
- the wireless communication device 10 of the present invention a plurality of (four in the present embodiment) crystal oscillators 31 are provided, and a plurality of bands (in the present embodiment, A band to D) We will use bands (4 lines)).
- Each of the gates provided in the data separation / multiplexing unit 201 is described, for example, in “Device for transmitting combination data / clock signal” in Japanese Patent Application Laid-Open No. 11-13775. It can be realized by using the gate of.
- the transmission unit 11 performs transmission processing of the transmission signal supplied from the data separation / multiplexing unit 201.
- a channel group (transmission channel group, reception, etc.) defined by four clocks A, B, C, and D respectively of an audio signal, image data, and text data.
- Channel group Power Enables simultaneous transmission and reception using configured channels (transmission channel, reception channel). Since channels defined by four clocks are used, it is possible to use a single clock. It is possible to simultaneously transmit and receive more information as compared with the conventional wireless communication device which transmits signals in channels set to the defined channel group. Furthermore, in a communication system using such a wireless communication device, even in the case of call congestion during a disaster, etc., the number of channels that can be interrupted increases, and congestion resistance is also improved. In addition, the number of communication lines can be increased without extending the current radio band.
- the number of clocks for defining a channel is not particularly limited as long as it is two or more.
- a plurality of transmission signals to be transmitted are input, and a transmission channel to be used is set from among the transmission channel group defined based on each of the plurality of clocks, and these transmissions are set. Since the processing of “generating a plurality of data signals including each of the transmission codes associated with the channel” is performed in the data matrix 2 0 3 and the signal transmission processing unit 2 0 4, these data matrices 2 0 3 Also, the signal transmission processing unit 204 is generically called "data signal generation means".
- the figure is a block diagram showing the configuration of the wireless communication apparatus of the present embodiment.
- the present embodiment is different from the first embodiment in that the video signal is divided and multiplexed in addition to the audio signal etc. to enable transmission and reception. That is, in the first embodiment, audio signals and the like are mainly targeted for multiplexing communication, while in the present embodiment, a plurality of types of signals including video signals are targeted for multiplexing communication, and the video signals Is divided into a predetermined number, and it is possible to transmit and receive a plurality of divided video data in association with a channel to be used among channel groups defined based on each of a plurality of clocks. It is different. Other components are the same as in the first embodiment. Therefore, in FIG. 4, the same components as in FIG. 1 will be assigned the same reference numerals and detailed explanations thereof will be omitted.
- the wireless communication apparatus 10 b includes a transmitter 11, a receiver 12, a mixer 13, an antenna 14, a communication control unit 20, a communication control unit 22, Operation ⁇ Display 2 3, 3, A speaker 24, a microphone 25, an imaging unit 26, a clock control unit 30, and four crystal oscillators 31A, 31B, 31C, and 3 ID are provided.
- the imaging unit (video signal input / output unit) 26 is a means for capturing an image, and may use, for example, a CCD camera.
- the video captured by the imaging unit 26 is sent to the data control unit 22 as a video signal.
- the imaging unit 26 can also receive a video signal from another device (a device having a function of capturing, processing, editing, etc., a video).
- the data control unit 22 is a voice signal corresponding to the user's vocalized sound from the microphone 25, a data signal supplied from the outside (supply route is not shown), a data signal (for example, an image, characters, etc.),
- the video signals from are supplied to the communication control unit 20, respectively.
- the data control unit 22 performs processing on the transmission signal supplied from the communication control unit 20. For example, if the transmission signal supplied from the communication control unit 20 relates to a video, the transmission signal is converted / generated to a video signal, or as a transmission signal or a video signal, the operation display unit 23 or the external It is supplied (eg via data input / output multiconnector 22a).
- the digital I / O multi connector 22a is an interface for exchanging video signals with the outside, and as shown in FIG. 5, the video processing apparatus 300 can be connected. .
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- the image processing apparatus 300 is an apparatus having one or more functions related to an image (for example, functions such as imaging, recording, processing (editing, division, combining, etc.), display, external input / output (sending and receiving), etc.).
- functions such as imaging, recording, processing (editing, division, combining, etc.), display, external input / output (sending and receiving), etc.
- personal computers digital cameras, digital video, disc players and recorders (CD, MD, DVD etc.), video discs, cell phones, PHS, PDAs etc. are included.
- a video signal is transmitted and received between the video processing device 300 and the data control unit 22.
- the data control unit 22 outputs a video signal from one or both of the imaging unit 26 and the video processing device 300. It can be received.
- the imaging unit 26 has a function as “image receiving means” because it outputs an image signal based on the captured image.
- the data input / output multi-connector 22 a can also be included in the “image receiving means” because it takes in a video from an external device (video processing device 300) and outputs a video signal.
- the video control unit 22 has a video storage unit 21, a video division unit 22 2, a format conversion unit 22 3 and a video generation unit 2 24.
- the video composition unit 2 2 5 and the operation and display control unit 2 2 6 are provided.
- the B central image storage unit 21 2 is a video signal sent from the imaging unit 26 or the video processing unit 300, a video signal divided by the video division unit 22 2 (video data), communication control
- the transmission signal (video signal) sent from the signal transmission processing unit 2 0 4 of the unit 20, the video data generated by the video generation unit 2 24 and the video signal synthesized by the video synthesis unit 2 2 3 Remember. In addition, they can also store voice signals and text data.
- the video division unit (video division means) 22 2 divides the video signal (or the video signal extracted from the video storage unit 21) sent from the imaging unit 26 or the video processing device 300. Yes (Fig. 6 (a)).
- a technique for dividing the video signal any suitable technique known in the related art can be used.
- the number of divisions is not particularly limited, and can be any number.
- the number of clock generation means clock control unit 30 and crystal oscillators 3 1 A to 3 1 D
- Each of the video signals (B-center image data) divided by the video division unit 222 can be sent to the video storage unit 221 for storage.
- the format conversion unit 223 converts the divided image data into a predetermined format.
- the converted video data is sent to the signal transmission processing unit 204 of the communication control unit 20.
- a video generation unit (video generation means) 2 24 generates video data from the transmission signal sent from the signal transmission processing unit 24.
- the video synthesizing unit (video synthesizing means) 225 composites a plurality of video data generated by the video generating unit 224 (Fig. 6 (c)).
- the synthesized video data (video signal) is sent to the video storage unit 21 1 and stored.
- any conventionally known suitable technique can be used as a technique for combining video data.
- Display control unit 2 2 4 takes out the video signal from the video storage unit 2 2 1 and sends it to the operation display unit 2 3 3 to display it on the screen.
- the communication control unit 20 has a data separation / multiplexing unit 201, a system logic 202, a data matrix 203, and a signal transmission processing unit 204.
- the signal transmission processing unit 204 inputs the video data to be transmitted from the data control unit 22, and based on the clock A, the clock B, the clock C, and the clock D from the clock control unit 30. To generate a data signal including four transmission signals (FIG. 6 (b)). The generated data signal is sent to the de-tuning matrix 203. Also, the signal transmission processing unit 24 controls the clock from the data signal associated with each of the reception channels C HRX (An), C HRX (B n), C HRX (Cn), and C HRX (Dn). Based on the clock A, the clock B, the clock C, and the clock D from the unit 30, the transmission signal (image data) is separated, and the transmission signal is supplied to the data control unit 22.
- the data separation / multiplexing unit 201, the system logic 202, and the data matrix 203 are the same as the data separation / multiplexing unit 201, the system logic 202, and the system logic 202 in the first embodiment.
- the video signal is divided, and the divided video data is divided into four groups of channels A, B, and D (transmission channel group, reception Channels can be simultaneously transmitted and received using the channels (transmission channel, reception channel) used from the group of channels). Since channels defined by four clocks are used, the number of channels is larger than that of a conventional wireless communication apparatus that transmits signals in channels set to channels defined by a single clock. Can simultaneously transmit and receive information. As a result, multiplexed communication can also be performed on video, and high-speed communication of video can be realized.
- the number of channels that can be interrupted is increased, and congestion tolerance is also improved.
- the number of communication lines can be increased without expanding the current radio band.
- the video signal is divided and multiplexed to enable transmission and reception by the wireless communication apparatus.
- A-band and B-band can transmit and receive different types of signals in each band, such as video transmission and reception, C-band transmission and reception of audio, and D-band communication for bucketed communication.
- the receiving side is a transmission specified based on the same clock as the own clock (for example, clock A). Only transmission signals including transmission signals associated with the transmission channel used out of the channel group can be received. Specifically, for example, as shown in FIG. 7, when the receiving side (mobile terminal 10-X) has the clock A, the transmitting side (wireless communication device 10-1, 10-2, 1 From 0-3), a transmission signal including a plurality of transmission signals associated with the transmission channel to be used out of the transmission channels defined based on each of the clock B, the clock C and the clock D is transmitted. When this happens, the receiver will not be able to receive those transmitted signals.
- the transmitted signal is converted to the clock of the conventional portable terminal.
- the converter 210 can be provided in the base station 200.
- the base station 200 can transmit the B channel. Clock changes are made such that A clock is mixed and A clock and A clock are generated.
- the transmission signal from the transmission side is associated with the transmission channel to be used among the transmission channel group defined based on each of the clock B, the clock C, and the clock D.
- the receiver can receive the transmission signal even if it contains a signal.
- the present invention is a technology for improving transmission efficiency of data communication and realizing high-speed communication, and therefore, can be used in the field of communication.
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JP2005504748A JPWO2004068755A1 (ja) | 2003-01-31 | 2004-01-29 | 無線通信装置及び無線通信方法 |
EP04706316A EP1592156A4 (en) | 2003-01-31 | 2004-01-29 | Radio communication device and radio communication method |
US10/543,675 US20060079212A1 (en) | 2003-01-31 | 2004-01-29 | Radio communication device and radio communication method |
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EP (1) | EP1592156A4 (ja) |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2009034608A1 (ja) * | 2007-09-11 | 2009-03-19 | Sachio Takahashi | Webチューナ、画像伝送システム及び画像伝送方法 |
WO2010073632A1 (ja) * | 2008-12-24 | 2010-07-01 | Takahashi Sachio | 送信機、受信機、通信装置、通信システム、送信方法及び受信方法 |
JP2016051943A (ja) * | 2014-08-29 | 2016-04-11 | セイコーエプソン株式会社 | 表示システム、送信装置、及び、表示システムの制御方法 |
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US6549045B1 (en) * | 2002-01-11 | 2003-04-15 | Altera Corporation | Circuit for providing clock signals with low skew |
JP2007099006A (ja) * | 2005-09-30 | 2007-04-19 | Nippon Plast Co Ltd | エアバッグ |
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- 2004-01-29 KR KR1020057013035A patent/KR100829845B1/ko not_active IP Right Cessation
- 2004-01-29 JP JP2005504748A patent/JPWO2004068755A1/ja active Pending
- 2004-01-29 US US10/543,675 patent/US20060079212A1/en not_active Abandoned
- 2004-01-29 CN CN200480003333.4A patent/CN1745525A/zh active Pending
- 2004-01-29 EP EP04706316A patent/EP1592156A4/en not_active Withdrawn
- 2004-01-29 WO PCT/JP2004/000825 patent/WO2004068755A1/ja not_active Application Discontinuation
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009034608A1 (ja) * | 2007-09-11 | 2009-03-19 | Sachio Takahashi | Webチューナ、画像伝送システム及び画像伝送方法 |
WO2010073632A1 (ja) * | 2008-12-24 | 2010-07-01 | Takahashi Sachio | 送信機、受信機、通信装置、通信システム、送信方法及び受信方法 |
JP4856778B2 (ja) * | 2008-12-24 | 2012-01-18 | 幸男 高橋 | 送信機、受信機、通信装置、通信システム、送信方法及び受信方法 |
JP2016051943A (ja) * | 2014-08-29 | 2016-04-11 | セイコーエプソン株式会社 | 表示システム、送信装置、及び、表示システムの制御方法 |
Also Published As
Publication number | Publication date |
---|---|
KR100829845B1 (ko) | 2008-05-16 |
US20060079212A1 (en) | 2006-04-13 |
CN1745525A (zh) | 2006-03-08 |
KR20050091089A (ko) | 2005-09-14 |
EP1592156A4 (en) | 2012-03-28 |
JPWO2004068755A1 (ja) | 2006-05-25 |
EP1592156A1 (en) | 2005-11-02 |
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