Patent ID: 6961345
Filing Date: 2005-11-01
Classification: H04N

Abstract:
1. A data transmission system comprising: a transmission line operable to transmit isochronous data to be processed at a timing in synchronization with a reference signal having a fixed cycle, and asynchronous data to be processed at an arbitrary timing a plurality of source devices operable to transmit the isochronous data to said transmission line; and at least one sink device operable to receive a plurality of pieces of the isochronous data which have been transmitted to said transmission line; wherein: a specific device which is one of said sink device and said plurality of source devices is operable to transmit, to said transmission line, reference signal information for reproducing a predetermined reference signal as a reference for a processing timing of the isochronous data; said plurality of source devices other than said specific device are operable to receive the reference signal information which has been transmitted to said transmission line, to obtain the predetermined reference signal, and to output the isochronous data which are synchronized with the reference signal; and said sink device is operable to respectively receive the isochronous data from said plurality of source devices in a timing that is synchronous with the reference signal, and to output the plurality of pieces of received isochronous data to a data processing device which is not connected to said transmission line in a timing that is synchronous with the reference signal.