CPC Class H04N

A sink device is bi-directionally communicably connected to the source device. The sink device includes a first memory, and a controller. Stored in the first memory is a plurality of pieces of audio format information including information representing an audio format that the sink device can process. The controller selects, from among the plurality of pieces of audio format information stored in the first memory, one piece of audio format information corresponding to receiver format information representing an audio format that a receiver device connected to the sink device can process. The controller then outputs the selected audio format information to the source device.

A handset or other end device in a local service domain receives video service notifications. The video service notifications can provide information to a user of the end device about a video service (e.g., a television program or a movie) available within a local network. The video service notification can include a request for a response to the notification, with the request having a corresponding URI or other type of link to cause a desired action (e.g., to commence recording or playing content associated with a particular video service). A mobile device configurable for direct communication in a wide area wireless network can join a local service domain and receive services through a gateway of that local service domain.