Patent application number | Description | Published |
20080253354 | COMMUNICATION APPARATUS, CONTROL METHOD FOR CONTROLLING COMMUNICATION APPARATUS, PROGRAM FOR CONTROLLING COMMUNICATION APPARATUS, AND STORAGE MEDIUM STORING SUCH PROGRAM - A communication apparatus determines a hibernation period on the basis of the amount of an offset in beacon period start timing among multiple beacon groups. The communication apparatus is placed in a hibernation status in accordance with the determined hibernation period. Thus, an offset in beacon period start timing among the beacon groups that would occur while the device is in hibernation can be prevented and the need for merging beacon groups and decrease in data rate during such merging are prevented. | 10-16-2008 |
20080304459 | METHOD FOR CONTROLLING A CONTROL STATION, A METHOD FOR CONTROLLING A TERMINAL STATION, A CONTROL STATION, A TERMINAL STATION, AND A COMPUTER READABLE STORAGE MEDIUM - A method for controlling a control station (H | 12-11-2008 |
20090047907 | COMMUNICATION SYSTEM, COMMUNICATION APPARATUS AND COMMUNICATION CONTROL METHOD - To adjust reception sensitivity suitable for avoiding cross-interference with another wireless communication system with an easy method. In order to achieve the above object, a control station that controls wireless communication of a dependent station determines whether or not a beacon received by the dependent station includes a beacon transmitted by a wireless terminal that is operated in asynchronization with the control station, and continues to transmit an instruction to lower the reception sensitivity of the dependent station to the dependent station until the beacon received by the dependent station does not include a beacon transmitted by the asynchronous wireless terminal. | 02-19-2009 |
20090063936 | COMMUNICATION APPARATUS, RECEPTION METHOD IN SAID APPARATUS, CODEC, DECODER, COMMUNICATION MODULE, COMMUNICATION UNIT AND DECODING METHOD - A communication apparatus includes a plurality of descramblers for subjecting a second header portion of a received frame to descrambling processing using pseudo-random sequences that differ from one another; a plurality of syndrome arithmetic units for performing a syndrome calculation, which is in accordance with a cyclic redundancy check code, with respect to headers descrambled by respective ones of the plurality of descramblers, and an error correction unit for selecting a header that has been descrambled by one descrambler among the plurality of descramblers as a receive header, in accordance with syndrome values calculated by respective ones of the plurality of syndrome arithmetic units. | 03-05-2009 |
20090129365 | CONTROL STATION, CONTROLLING METHOD THEREOF AND STORAGE MEDIA - This invention has as its object to reduce power consumption of dependent stations with low frequency of communication by controlling communications of the control station in a network. According to this invention, a control station communicating with dependent stations comprises a classification unit configured to classify the dependent stations connected to the control station into a plurality of groups; a first transmission unit configured to transmit first broadcast-frame to the dependent stations classified into first group; and a second transmission unit configured to transmit second broadcast-frame to the dependent stations classified into second group with lower frequency of communication compared to the first group, wherein the second transmission unit transmits the second broadcast-frame with a lower transmitting frequency compared to the first broadcast-frame transmitting frequency of the first transmission unit. | 05-21-2009 |
20090237265 | CONTROL DEVICE AND COMMUNICATION CONTROL METHOD - This invention eliminates unnecessary beacon transmission by a DBD and suppresses the power consumption of each device included in a wireless communication network. This invention provides a communication control method in a host which wirelessly communicates with a DBD via a wireless USB. The method includes the steps of transmitting a capture packet command to a DBD when it is activated, analyzing a received captured signal and determining the presence/absence of another Wimedia device unrecognized by the host, and upon determining that the other Wimedia device unrecognized by the host exists, instructing the activated DBD to transmit a beacon to implement wireless communication synchronized with the host. | 09-24-2009 |
20090245275 | COMMUNICATION STATION, COMMUNICATION METHOD, COMPUTER-READABLE STORAGE MEDIUM, AND COMMUNICATION SYSTEM - A communication station receives data from a transmission station, transmits a reception response representing the data reception condition, and determines, based on reception responses from other communication stations, whether communication station which has not normally received the data from the transmission station exists among the other communications. Upon normally receiving the data from the transmission station, and determining that the communication station which has not normally received the data from the transmission station exists, the communication station transfers, to the communication station which has not normally received the data, the data received from the transmission station. upon transferring, it is decided, based on a predetermined priority order, whether or not to perform the transfer to the communication station which has not normally received the data. | 10-01-2009 |
20110159803 | COMMUNICATION SYSTEM, COMMUNICATION APPARATUS, CONTROL METHOD OF COMMUNICATION APPARATUS, AND COMPUTER-READABLE STORAGE MEDIUM - This invention provides a communication system, a communication apparatus, a control method of the communication apparatus, and a computer-readable storage medium, which enable to increase the reliability of relay transmission and suppress redundant transmission. | 06-30-2011 |
20110255579 | COMMUNICATION APPARATUS, METHOD OF CONTROLLING SAME AND COMMUNICATION SYSTEM - In order to achieve more efficient data transfer by broadcast, a communication apparatus receives data that has been broadcast from a transmitting apparatus to a plurality of communication apparatuses, and transmits a response signal regarding the data using a carrier different from those of the other communication apparatuses from among a plurality of mutually orthogonal carriers. | 10-20-2011 |
20110317595 | WIRELESS COMMUNICATION APPARATUS, CONTROLLING METHOD THEREOF, AND PROGRAM - A wireless communication apparatus that conducts full-duplex wireless communication with a communication partner using a transmitting antenna and a receiving antenna is provided. The apparatus includes a transmitting unit configured to transmit a signal via the transmitting antenna using a first frequency channel, a receiving unit configured to receive a signal via the receiving antenna using a second frequency channel different from the first frequency channel, and a control unit configured to control beam angle of directionality of at least one of the transmitting antenna and the receiving antenna, so that direction of a communication path of a signal which the transmitting unit transmits and the communication party receives, and direction of a communication path of a signal which the communication party transmits and the receiving unit receives, differ from each other. | 12-29-2011 |
20120257114 | DISTRIBUTION APPARATUS AND VIDEO DISTRIBUTION METHOD - A distribution apparatus in a video display system for combining and displaying at least two video images transmitted via multiple communication paths decides the qualities of each of the video images combined and displayed based upon the transmission rates of the multiple communication paths. The apparatus distributes video images via each of the communication paths in accordance with the transmission rates of each of the communication paths and the qualities of each of the video images. | 10-11-2012 |
20130010592 | METHOD FOR CONTROLLING A CONTROL STATION, A METHOD FOR CONTROLLING TERMINAL STATION, A CONTROL STATION, A TERMINAL STATION, AND A COMPUTER READABLE STORAGE MEDIUM - A method for controlling a control station (H | 01-10-2013 |
20140106803 | COMMUNICATION APPARATUS, COMMUNICATION METHOD, AND STORAGE MEDIUM - A communication apparatus detects a radio signal from another communication apparatus which performs radio communication in another apparatus station, estimates a producing period and signal timing of the another apparatus station using the detected radio signal, determines, based on the detected radio signal, a communication apparatus which has transmitted the signal, and stores, in association with each other, the determined communication apparatus and the producing period and signal timing of the another apparatus station, wherein at least one of the stored producing period and signal timing of the other apparatus station is updated using the detected radio signal. | 04-17-2014 |
20140300199 | POWER TRANSMITTING APPARATUS, CONTROL METHOD, AND COMPUTER READABLE STORAGE MEDIUM - A power transmitting apparatus that performs power transmission to a power receiving apparatus includes an amplifier including a switching element, receives a load power amount from the power receiving apparatus, detects a value for evaluating the efficiency of the amplifier, and based on the load power amount and the detected value for evaluating the efficiency, increases or reduces a voltage that is to be supplied to the amplifier. | 10-09-2014 |