Lerner, David, Littenberg, Krumholz & Mentlik, LLP
Electronic equipment, control information transmission and reception methods having bidirectional communication using predetermined lines
A communication method for performing transmission of video data and audio data, communication of device control data, and local area network communication by using a single cable may include connecting a connectable device to a pair of differential transmission lines; performing the local area network communication through bidirectional communication via the pair of differential transmission lines; and notifying a connection state of an interface with the connectable device by using a DC bias potential of at least one of the differential transmission lines of the pair. The connection state may include a first notification from a first one of the pair of differential transmission lines whether the connectable device is connected to the single cable.
Sony Corporation
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Takamichi Hidekazu Yasuhisa
Mitsuhashi Kikuchi Nakajima