Patent ID: 8935740
Filing Date: 2015-01-13
Classification: H04B,H04N

Abstract:
1. A video signal transmission apparatus comprising: an optical transmitter, connected to a video source device, that uni-directionally transmits video data input from the video source device; an optical receiver, connected to a sink device, that receives the video data transmitted from the optical transmitter and outputs the received video data to the sink device; a first transmission medium, connected to the optical transmitter and the optical receiver, that transmits the video data at a speed higher than a predetermined reference transmission speed; a second transmission medium, connected to the optical transmitter and the optical receiver independently from the first transmission medium, that transmits identification information for identifying the sink device at a speed lower than the predetermined reference transmission speed; an identification information acquisition control section, provided in the optical transmitter, that acquires the identification information from the sink device through a bidirectional communication using the second transmission medium in accordance with a request from the video source device; a storage section, provided in the optical transmitter, that stores general-purpose identification information generally used for a plurality of types of sink devices that are connectable to the optical receiver; an acquisition possibility determination section that determines whether the identification information can be acquired from the sink device through the second transmission medium; and a general-purpose identification information reply control section that replies the general-purpose identification information stored in the storage section to the video source device if the acquisition possibility determination section determines that the identification information cannot be acquired from the sink device through the second transmission medium; and a setting section provided at the optical transmitter which is configured to falsely report to the video source device that the video source device is connected to the sink device when the sink device is not connected to the optical transmitter via the second transmission medium,