Transmission device and reception device

Patent metadata

Field	Value
Publication number	US-2017055029-A1
Application number	US-201615345977-A
Country	US
Kind code	A1
Filing date	Nov 8, 2016
Priority date	Mar 5, 2008
Publication date	Feb 23, 2017
Grant date	—

Abstract

An external device may recognize, in the case of including a communication unit that executes communication via a communication path made up of a pair of differential transmission paths included in a transmission path, information relating to the communication unit thereof.
A disk recorder transmits function information indicating that a communication unit (high-speed data line I/F 213 ) configured to execute communication with an external device via a communication path made up of a reserve line and an HPD line of an HDMI cable to a television receiver via a CEC line that is a control data line of the HDMI cable. The television receiver receives function information, whereby whether or not the disk recorder is an eHDMI-compatible device can be determined, and in the case of an eHDMI-compatible device, a compatible transmission format (application) can be recognized.

First claim

1 . A transmission device comprising:
a video signal transmission unit configured to transmit video signals to an external device via a transmission path with a plurality of channels using a differential signal; a communication unit configured to communicate with said external device via a communication path made up of a pair of differential transmission paths included in said transmission path; a function information transmission unit configured to transmit first function information indicating that said transmission device includes said communication unit to said external device via a control data line making up said transmission path; and a function information reception unit configured to receive second function information indicating that said external device includes a communication unit configured to execute communication via said communication path, which is transmitted from said external device.

Assignees

• Sony Corp

Inventors

• Kitano Masaki
• Kondo Kazumoto
• Hayashi Toshihide
• Ichimura Gen

Classifications

• H04N21/44227

  Monitoring of local network, e.g. connection or bandwidth variations; Detecting new devices in the local network (configuring of peripheral devices in general G06F9/4411; monitoring connectivity in data switched networks H04L43/0811) · CPC title

• H04N21/43622

  Interfacing an external recording device · CPC title

• H04N21/43635 Primary

  HDMI · CPC title

• H04N5/775 Primary

  between a recording apparatus and a television receiver · CPC title

• H04N21/43615

  Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals (home Audio Video Interoperability [HAVI] data switching networks H04L12/2805) · CPC title