Abstract: In an adapter apparatus, a wireless communication circuit wirelessly transmits an audio-visual signal to an adapter apparatus, and receives an HPD pulse signal from the adapter apparatus. A controller controls a DVD player to execute a predetermined initialization processing, by converting the HPD pulse signal into an HPD signal and outputting the HPD signal to the DVD player. In the adapter apparatus, a wireless communication circuit receives the audio-visual signal from the adapter apparatus, and wirelessly transmits the HPD pulse signal to the adapter apparatus. A controller controls the DVD player to execute the predetermined initialization processing, by controlling the wireless communication circuit to wirelessly transmit the HPD pulse signal to the adapter apparatus.

Abstract: An adapter apparatus wirelessly transmits a TMDS signal to an adapter apparatus using a first radio channel, wirelessly transmits a DDC downstream signal and a CEC downstream signal to an adapter apparatus using a second radio channel, and receives a radio signal including a DDC upstream signal and a CEC upstream signal from the adapter apparatus using the second radio channel. The adapter apparatus receives the TMDS signal using the first radio channel, receives the radio signal including the DDC downstream signal and the CEC downstream signal using the second radio channel, and wirelessly transmits the DDC upstream signal and the CEC upstream signal to the adapter apparatus using the second radio channel.

Abstract: In a wireless repeater apparatus communicating with wireless communication apparatuses, a switching circuit transfers a data packet received through any one of antennas to any one of antennas for transmission. A correspondence table memory stores a correspondence table that includes relations of an identifier of each antenna between an identifier of each wireless communication apparatus. A wireless repeater apparatus control circuit controls transfer of the data packet by the switching circuit based on the correspondence table.

Abstract: A satellite digital broadcasting receiver apparatus is provided which includes a communication circuit that transmits and receives apparatus management information and apparatus control information required for viewing a satellite digital broadcasting program to and from a management center apparatus for managing the apparatus management information and the apparatus control information is provided. A VoIP interface circuit of the communication circuit is connected to an IP (Internet Protocol) network, transmits data including the apparatus management information to the management center apparatus via the IP network and an access point communication apparatus using a VoIP (Voice over Internet Protocol) packet signal, and receives data including the apparatus control information from the management center apparatus via the access point communication apparatus and the IP network using the VoIP packet signal.

Abstract: An informational outlet has an outlet frame body having a wiring holder for connecting the informational wiring installed in a wall face; and an information exchange section having the first connector provided in the room side for connecting the informational wiring of an informational terminal, and for performing the transit, exchange, or processing of information between the informational wiring in the wall face and said informational wiring of said informational terminal.