Patent ID: 8213450

Claim:
A communication apparatus that performs isochronous transfer of isochronous packets using a set isochronous channel, the communication apparatus comprising: a plurality of communication chips each assigned a unique node ID and including a physical layer and a data link layer, each of which confirm to the IEEE 1394 standard; a channel setting unit conforming to the IEC 61883 standard, the channel setting unit configured to set up a plurality of isochronous channels between the communication apparatus and a second communication apparatus, and to set UP an asynchronous transfer using a first communication chip of the plurality of communication chips, wherein the channel setting unit sets up the plurality of isochronous channels, respectively, in the plurality of communication chips; and a control unit that causes the plurality of isochronous channels to perform isochronous transfer of isochronous packets that indicate a node ID of a transmission source node that is assigned to the first communication chip instead of a node ID assigned to the communication chip itself.