Abstract:
PROBLEM TO BE SOLVED: To prevent out-of-synchronization between communication nodes.SOLUTION: The communication node performs communication using a time division multiple access system where the length of a frame to be transmitted/received can be changed. The communication node comprises: a data length detecting unit detecting the length of the frame on the basis of the frame received from another communication node; a data length determining unit determining whether the length of the frame detected by the data length detecting unit is equal to or smaller than a first threshold or equal to or larger than a second threshold; and a timing correcting unit that corrects a transmission/reception timing when the data length determining unit determines that the data length detected by the data length detecting unit is equal to or smaller than the first threshold or equal to or larger than the second threshold. The timing correcting unit corrects the transmission/reception timing in consideration that the frame has not been received.
Abstract:
PROBLEM TO BE SOLVED: To provide a communication apparatus for reducing ringing on a transmission line in signal transition, while keeping communication performance. SOLUTION: The communication apparatus for communicating with another apparatus via the transmission line 12 1 includes: a terminating part 20 for suppressing the ringing in the transmission line 12 1 ; a communication end detecting part 22 for detecting the end of the communication with another apparatus; and a terminal end driving part 24 for connecting the terminal end 20 to the transmission line 12 1 for a prescribed time from the end of the communication when the communication end detecting part 22 detects the end of the communication. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide information communication equipment corresponding to low power consumption for preventing any unnecessary wakeup.SOLUTION: This information processor 10 corresponding to low power consumption is provided with: an arithmetic means 11 for performing various information processing; a state control means 12 for performing the state control of an operating state and a resting state to the arithmetic means 11 for low power consumption; a communication control means 14 for performing communication control between the arithmetic means 11 and a local area network 2; and a frame identification means 13 for identifying whether the frame received from the local area network 2 is a control frame for information communication or a wakeup frame for switching the arithmetic means 11 from the resting state to the operating state. When the arithmetic means 11 is in the resting state, the communication control means 14 abandons the frame identified as the control frame by the frame identification means 13.