(1) The respective isochronous packets are transferred to a digital TV system through the 1394 link layer 33 and the physical layer 95.(2) An isochronous data pipe provides a bidirectional path for data between an application and a bus structure.(3) This is not the case unless the hub supports delivery of both the standard Ethernet and isochronous channels.(4) A 1394 port can support isochronous data, delivering data at a guaranteed speed.(5) A demultiplexer for an isochronous multiplex signal is described which signal consists of isochronous sub-signals interleaved block by block.(6) PowerAV features quality of service features specific to video and transmits it isochronously .