| Patent application number | Description | Published |
|---|
| 20090190673 | Power line communication apparatus, integrated circuit for power line communication and transmission/reception methods - Transmitter | 07-30-2009 |
| 20090257432 | TERMINAL - Provides a terminal for performing multiple access transmission suitable to a transmission path having varied characteristics. The terminal ( | 10-15-2009 |
| 20100104030 | COMMUNICATIONS DEVICE AND COMMUNICATIONS METHOD - A communications device | 04-29-2010 |
| 20100195656 | COMMUNICATION APPARATUS AND COMMUNICATION METHOD - There is provided a communication apparatus which, in an ad-hoc network, when receiving control packets from a plurality of terminals, can determine whether or not there is a collision among the control packets, and, based on the determination, can be prevented from continuing to be out of the network due to a collision among the control packets transmitted from the plurality of terminals. In the communication terminal, a communication section receives a control packet which periodically comes up on a communication path. When the communication apparatus receives a plurality of control packets which are defective in at least payload portions thereof within a predetermined time period, if a control section determines that source addresses included in header portions of the control packets which are defective in the payload portions thereof include a source address which is not identical to the other source addresses, the control section determines that the control packets are transmitted from a plurality of terminals and collide with each other. | 08-05-2010 |
| 20110090067 | COMMUNICATION APPARATUS ENABLING COEXISTENCE OF SYSTEMS - A frequency band is divided into N subchannels. Sub-channels are first allocated for a power line communication system having a higher priority, such as public communication or the like. Sub-channels for a power line communication system having a relatively low priority, such as in-home communication or the like, are allocated from free subchannels. In this case, the subchannels used by the power line communication system having the high priority are limited to a plurality of consecutive subchannels from an upper side or a lower side of the frequency band. | 04-21-2011 |
| 20110161490 | TERMINAL CAPABLE OF SUBSTITUTING FOR CONTROL STATION - A terminal of the present invention comprises a control frame detection portion of detecting a control frame issued from a control station, a control frame memory portion of storing control information contained in the control frame, a substitute frame issuance determination portion of determining to issue a substitute frame when the control frame is not detected until a predetermined first time period is elapsed, and a substitute frame issuance portion of creating a frame which is the same as or equivalent to the control frame, as the substitute frame, based on the control information stored in the control frame memory portion when the substitute frame issuance determination portion determines to issue the substitute frame, and issuing the created substitute frame. | 06-30-2011 |
| 20110222554 | COMMUNICATION APPARATUS ENABLING TEMPORAL COEXISTENCE OF SYSTEMS - A coexistence controller which performs management and control of time division for coexistence, is provided in a power line communication modem which has a function as a QoS controller for a QoS type communication system and a power line communication modem for a best-effort type communication system. In the QoS type communication system, by controlling allocation of a communication band in accordance with priorities given to the communication systems by cooperation of the coexistence controller and the QoS controller, the power line communication systems having different schemes can coexist. | 09-15-2011 |
| 20110243157 | COMMUNICATION SYSTEM AND METHOD, AND COMMUNICATION APPARATUS - A communication system ( | 10-06-2011 |
