| Patent application number | Description | Published |
|---|
| 20080298517 | RECEIVING APPARATUS, PROGRAM AND RECEIVING METHOD - A receiving portion for receiving a wireless signal generated on the basis of a baseband signal having either a predetermined frequency band or a baseband signal having any of partial frequency bands; a signal processing portion for generating the baseband signal; a band shifter for shifting the frequency band of the baseband signal by such an amount of shift that the center frequency of at least a specific partial frequency band is in the vicinity of 0 Hz; a filter portion for outputting a partial signal, which is gained by sampling a signal component of the frequency band having a bandwidth of the specific partial frequency band with approximately 0 Hz as the center frequency, from the baseband signal; and a determining portion for determining the frequency band of the baseband signal on the basis of the partial signal. | 12-04-2008 |
| 20090274229 | WIRELESS COMMUNICATION APPARATUS, WIRELESS COMMUNICATION METHOD, COMPUTER PROGRAM, AND WIRELESS COMMUNICATION SYSTEM - There is provided a wireless communication apparatus including: a matrix estimating unit that estimates a channel matrix of N rows and M columns (N and M are natural numbers); a selecting unit that selects S rows (S is a natural number, and S| 11-05-2009 | |
| 20090274236 | Wireless Communication Apparatus, Wireless Communication Method, Wireless Communication System, and Computer Program - There is provided a wireless communication apparatus including: a matrix estimating unit that estimates a channel matrix of N rows and M columns (N and M are natural numbers); a selecting unit that selects S rows (S is a natural number, and S| 11-05-2009 | |
| 20100079261 | COMMUNICATION DEVICE, COMMUNICATION METHOD, COMPUTER PROGRAM AND COMPUTER SYSTEM - A communication device includes: a first communication processing unit performing contactless communication operations in a first communication rate in which waveform distortion hardly become a problem; a second communication processing unit performing contactless communication operations in a second communication rate in which waveform shaping by adaptive equalization is necessary; and a control unit controlling communication processing by the first and second communication processing units, wherein the first communication processing unit stores the contents of a packet received in the first communication rate, and the second communication processing unit, when receiving the packet of the same contents in the second communication rate, performs adaptive equalization processing by using the stored contents of the packet. | 04-01-2010 |
| 20100134256 | COMMUNICATION DEVICE, COMMUNICATION METHOD, COMPUTER PROGRAM AND ADAPTIVE EQUALIZER - A communication device is provided for receiving a packet including a preamble part having a continuous waveform, a sync part having a specific pattern and a data part, which has been modulated by changing electrical load. The communication device includes: a preamble detection unit for detecting the preamble part from a received signal to extract sampling timing based on the continuous waveform; a sync detection unit for detecting the sync part from the received signal based on the sampling timing to output a timing signal indicating a start position of the sync part; a delay buffer for giving a delay to the received signal so that the head of the sync part is not outputted until the detection of the sync part is determined; an adaptive equalization unit for performing adaptive equalization using the sync part based on the timing signal by inputting the delayed received signal; and a decoding unit for performing decoding processing of an equalized output signal from the adaptive equalization unit. | 06-03-2010 |
| 20100254477 | TRANSMISSION APPARATUS AND COMMUNICATIN SYSTEM - Disclosed herein is a transmission apparatus including a first transmission block configured to modulate a carrier-wave signal having a predetermined frequency on the basis of a first input signal, thereby outputting a first transmission signal; and a second transmission block configured to modulate a carrier-wave signal having a predetermined frequency on the basis of a second input signal, thereby outputting a second transmission signal; wherein a first input point for inputting the first transmission signal outputted from the first transmission block into a waveguide and a second input point for inputting the second transmission signal outputted from the second transmission block into the waveguide are shifted by a distance for providing a predetermined phase difference between the first transmission signal and the second transmission signal. | 10-07-2010 |
| 20110026443 | RADIO COMMUNICATING DEVICE, ROTATIONAL STRUCTURE, AND ELECTRONIC DEVICE - Disclosed herein is a radio communicating device including: a first communicating block; a second communicating block rotatable about an axis of rotation relative to the first communicating block; and a radio signal transmission line capable of information transmission by radio between the first communicating block and the second communicating block; wherein between the first communicating block and the second communicating block, a signal to be transmitted is converted into a radio signal of a circularly polarized wave, and the radio signal of the circularly polarized wave is transmitted via the radio signal transmission line. | 02-03-2011 |
| 20110037863 | IMAGING DEVICE - Disclosed herein is an imaging device including: a first substrate having a first communication device; a second substrate having a solid-state imaging device and second communication device to exchange signals with the first substrate; a shake correction section adapted to detect the shake of an enclosure and correct the shake based on the detection result by moving the first substrate in the plane vertical to the optical path; and a millimeter wave signal transmission line that permits transmission of information in the millimeter wave band between the first and second communication devices, wherein a signal to be transmitted between the first and second communication devices is converted into a millimeter wave signal first before being transmitted via the millimeter wave signal transmission line. | 02-17-2011 |
| 20110038282 | WIRELESS TRANSMISSION SYSTEM AND WIRELESS TRANSMISSION METHOD - Disclosed herein is a wireless transmission system, including: a plurality of systems of millimeter wave signal transmission lines capable of individually transmitting information in a millimeter waveband independently of each other; a sending section disposed on one end side of each of the plural systems of millimeter wave signal transmission lines; and a reception section disposed on the other end side of each of the plural systems of millimeter wave signal transmission lines. The sending section is adapted to convert a signal of an object of transmission into a millimeter wave signal and supply the millimeter wave signal to the millimeter signal transmission line. The reception section is adapted to receive the millimeter wave signal transmitted thereto through the millimeter wave signal transmission line and convert the received millimeter wave signal into the signal of the object of transmission. | 02-17-2011 |
| 20110075581 | Wireless transmission system, wireless communication device and wireless transmission method - Disclosed herein is a wireless transmission system including a plurality of antenna pairs; a demodulation functional unit; and a transmission characteristic correction unit. The plurality of antenna pairs each including a transmission antenna and a reception antenna. A wireless signal transmitted from a transmission antenna directly arrives as a desired wave at a corresponding reception antenna. Meanwhile, a wireless signal transmitted from a different transmission antenna directly arrives as an unnecessary wave at the reception antenna. The demodulation functional unit corresponding to each antenna pair demodulates a modulation signal received by the reception antenna. The transmission characteristic correction unit carries out correction calculation based on a transmission characteristic of a transmission space between the transmission and reception antennae based on demodulation signals demodulated by the demodulation functional units to acquire an output signal corresponding to a transmission subject signal. | 03-31-2011 |
| 20110075747 | Wireless transmission system, wireless communication device and wireless transmission method - Disclosed herein is a wireless transmission system. Transmission antennas are provided on a first communication apparatus while reception antennas individually corresponding to the transmission antennas are provided on a corresponding second communication apparatus. Each reception antenna receives a desired wave from a corresponding transmission antenna as a direct wave and receives an unnecessary wave from a different transmission antenna as a direct wave. The first communication apparatus modulates only the amplitude of a carrier signal for all channels. The second communication apparatus demodulates composite waves of desired waves and unnecessary waves received by the reception antennas by envelope detection or square-law detection and carries out correction operation for the demodulation signals based on transmission characteristics of transmission spaces between the transmission and reception antennas to acquire transmission subject signals. | 03-31-2011 |
| 20110076944 | Wireless communication device, wireles transmission system and wireless transmission method - Disclosed herein is a wireless communication device, including: a plurality of communication units for transmission adapted to modulate and transmit a transmission subject signal; the communication units for transmission including a communication unit or units for transmission which adopt a method which modulates the amplitude and a communication unit or units for transmission which adopt a modulation method which modulates at least the phase or the frequency and requires transmission power lower than that of the method which modulates the amplitude. | 03-31-2011 |
| 20110098010 | RADIO TRANSMISSION SYSTEM, RADIO COMMUNICATION APPARATUS, AND RADIO TRANSMISSION METHOD - A radio transmission system includes: antenna pairs, each antenna pair being a combination of a transmitting antenna and a receiving antenna in one-to-one correspondence. A radio signal from the transmitting antenna in one of the antenna pairs reaches the receiving antenna of the one antenna pair as a desired wave directly, and a radio signal from the transmitting antenna of another antenna pair different from the one antenna pair reaches the receiving antenna of the one antenna pair as an unnecessary wave directly. A transfer characteristic correction section which performs a correction operation based on the transfer characteristic of a transmission space between the transmitting antenna and the receiving antenna for a transmission-target signal corresponding to the transmitting antenna, and a modulation functional section which modulates a carrier signal with a corrected signal after having been corrected by the transfer characteristic correction section and transmits the modulated carrier signal from the corresponding transmitting antenna, are provided in correspondence with each antenna pair. | 04-28-2011 |
