Abstract:
PROBLEM TO BE SOLVED: To provide a communication device capable of simplifying various settings in a display device such as a television which provides information concerning an article (a communication device).SOLUTION: The communication device comprises a first processing unit 35, a first power supply unit 101, a use state detection unit 7020, a first memory 174, a second antenna 21, an RF-ID47, a second memory 52, and a second power supply unit 91. The RF-ID47 switches between a first communication mode which the first processing unit 35 reads use state information from the first memory 174 and transmits to another communication device by a short-range wireless communication in a state that the first power supply 101 supplies electric power to the first processing unit 35 and the first memory 174 based on an instruction received from the other communication device, and a second communication mode which the RF-ID47 reads identification information from the second memory 52 in a state that the second power supply unit 91 supplies electric power to the second memory 52.
Abstract:
PROBLEM TO BE SOLVED: To provide a relay apparatus which prevents the generation of packet loss with effectiveness, when relaying a flow with high burst. SOLUTION: The relay apparatus 15 includes: a transmission queue buffer 24 that is assigned to a flow as a set of a plurality of packets constituting a series of communication; a reception control part 21 for storing the received packet in the transmission queue buffer 24; a burst index calculating part 23 for calculating a burst index indicating a variance of the transmission rate of the flow; a priority control part 25 that changes at least either of packet transmission wait time included in the flow and the buffer size of the transmission queue buffer 24 for storing the flow on the basis of the burst index; and a transmission control part 26 that sends the packet at such timing, when the transmission wait time lapses, after the transmission path becomes available. COPYRIGHT: (C)2010,JPO&INPIT