| Patent application number | Description | Published |
|---|
| 20080201627 | Communication Device, Communication Method, and Computer Program - A communication device configured to perform packet reception processing, with the header of a packet including a header sequence and a Reed-Solomon code, includes: a header check sequence inspecting unit configured to detect, based on the header check sequence included in a received packet header, an error of the header; a Reed-Solomon encoding unit configured to encode the header of a received packet other than the Reed-Solomon code to generate a Reed-Solomon code; a Reed-Solomon code inspecting unit configured to detect whether or not the Reed-Solomon code generated by the Reed-Solomon encoding unit is completely identical to the Reed-Solomon code within the received packet header; and a processing control unit configured to control payload processing of a received packet in accordance with the inspection results of the header check sequence inspecting unit and the Reed-Solomon code inspecting unit. | 08-21-2008 |
| 20080291976 | COMMUNICATION DEVICE, COMMUNICATION METHOD, COMMUNICATION SYSTEM AND PROGRAM - A communication device of the present invention includes channel compensations, an adaptive processor, a MAC and a controller. The channel compensations weight each of signals received by a plurality of antennas based on an SN ratio of the received signals so as to control the antennas to operate as combining diversity systems. The adaptive processor weights each of the signals received by the plurality of antennas so as to suppress the interference signal and to control the antennas to operate as adaptive array antennas. The MAC detects frequency hopping information of the received signals. The controller changes between the operation of the combining diversity systems and the operation of the adaptive array antennas, based on the frequency hopping information. | 11-27-2008 |
| 20090041087 | WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION METHOD - Transmission data spread over a frequency domain and a time domain is efficiently received. When a spread signal is received, if the SNR exceeds a predetermined value, it is determined that a despreading process is not necessary for all blocks, and a block selection flow is started. If a block having a channel estimation result indicating that a decoding process is possible without despreading is present, only that block is subjected to the decoding process, and despreading processes over the frequency domain and time domain are terminated. Moreover, when decoding is performed by despreading only some of the blocks, the despreading process over the frequency domain is preferentially performed so as to efficiently terminate FFT with regard to the spread signal over the time domain for which despreading is not performed. | 02-12-2009 |
| 20090122838 | Transmission Device, Reception Device, Communication System, Transmission Method and Program - A transmission device of the present invention includes a MAC that generates data I transmitted by a band group M and generates data J transmitted by a band group N; signal switching parts that exchange a part of the data I and a part of the data J; and antennas that simultaneously transmit the data I and the data J after data exchange is performed by the signal switching parts, by the band group M and the band group N. | 05-14-2009 |
| 20090135929 | Receiving Apparatus, Communication System, Receiving Method and Program - A receiving apparatus according to the present invention has a plurality of synchronizing circuits which is provided corresponding to different preamble signals of a reception signal and operate simultaneously at the time of receiving the preamble signals so as to output synchronous signals, a correlation value comparing section which compares correlation values of the synchronous signals output from the plurality of synchronizing circuits, and a synchronizing section which determines whether the received signal is for the subject apparatus based on a comparison result from the correlation value comparing section. | 05-28-2009 |
| 20090207888 | Transmission Apparatus, Transmission Method, Reception Apparatus, Reception Method, and Transmission System - It is desired to suitably carry out transmission processing and reception processing carried out when transmitting a multicarrier signal where specific subcarriers are omitted. Therefore, the present invention carries out transmission avoidance processing operable when transmitting a multicarrier signal to replace signals corresponding to subcarriers, in a plurality of subcarriers, at frequency positions where transmission is avoided with a null signal. Subsequently, an inverse Fourier transform is carried out on the output of the transmission avoidance processing, the transmission power of the multicarrier signal that has been transformed is amplified in accordance with the number of subcarriers replaced with the null signal and the multicarrier signal is transmitted. When this multicarrier signal is received, subcarriers where transmission was avoided are estimated, and when it is estimated in the estimation that subcarriers where transmission was avoided are present, despreading and demodulation are carried out without using the subcarriers where transmission was avoided. | 08-20-2009 |
| 20090251309 | WIRELESS COMMUNICATION APPARATUS, WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION METHOD, AND PROGRAM - A wireless communication apparatus according to the present invention includes a wireless communication transmitting circuit and a wireless communication receiving circuit that perform communication with another apparatus connected through a wireless communication network; a power situation acquiring unit that acquires a power situation of the wireless communication apparatus; and a wireless power transmitting circuit that wirelessly supplies power to another apparatus in accordance with a power supply request from another apparatus connected through the wireless communication network, when the power situation of the wireless communication apparatus satisfies a predetermined condition. | 10-08-2009 |
| 20090254766 | Wireless Communication Apparatus, Wireless Communication System, Wireless Communication Method, and Program - A wireless communication apparatus according to the present invention includes a user terminal information acquiring unit that acquires user terminal information related to user terminals, which are connected through a wireless communication network to enable communication, from the user terminals; a wireless power transmitting circuit that wirelessly supplies power to the user terminals; a control unit that determines whether or not to supply the power to the user terminals based on the user terminal information; a user terminal location acquiring unit that acquires location information of the user terminals where the power is supplied; and a transmission power direction instructing unit that controls directivity of power supply based on the location information of the user terminals. | 10-08-2009 |
| 20090264069 | WIRELESS COMMUNICATION APPARATUS, POWER SUPPLY METHOD, PROGRAM, AND WIRELESS COMMUNICATION SYSTEM - The present invention provides a wireless communication apparatus including: a communication processing unit that transmits and receives a radio signal; a wireless power transmitting unit that supplies power wirelessly to an apparatus located within a power supplyable range; a location data obtaining unit that obtains location data of a power receiver apparatus; and a control unit that controls a power supply to the power receiver apparatus based on the location data of the power receiver apparatus obtained by the location data obtaining unit. | 10-22-2009 |
| 20100228768 | Information Providing Server, Information Providing System, Information Providing Method and Program - An information providing server of present invention including a state information acquiring unit for acquiring state information related to a state of a user using a client terminal detected at the client terminal connected through a communication network, a database for accumulating data of a content to be used by the user, a selection unit for selecting a part of the data accumulated in the database based on the state information, and a transmission unit for transmitting the data selected by the selection unit to the client terminal. | 09-09-2010 |
