Patent ID: 6947422

Claim:
A transmission method of transmitting data having a predetermined data length as a unit between devices for transmitting data through a predetermined transmission line by a predetermined format, said transmission method comprising the steps of: locating label data indicating a system of transmitted audio stream data at a starting portion of said data having said predetermined data length as a unit; and locating said audio stream data of said system at an interval behind said label data and transmitting resultant data, wherein said predetermined format is a format complying with a protocol for transmitting data in an isochronous transfer mode through said transmission line and a plurality of data having said predetermined data length as a unit are located at an interval following a header prescribed by said protocol, and wherein sub-label data is located at an interval following said label data, and data accompanying said audio stream data of said system is located at an interval following said sub-label data in data of a part of a unit of said plurality of data having the predetermined data length as a unit, and said audio stream data of said system is located at an interval following said label data in data of a remaining unit.