Patent ID: 8451385
Filing Date: 2013-05-28
Classification: H04N

Abstract:
1. A signal transmitting apparatus for connection to a signal receiving apparatus via a transmission line, the signal transmitting apparatus comprising: a time-axis compressor that time-axis compresses an audio signal, which is sampled by a video clock; a multiplexer that multiplexes the audio signal that has been time-axis compressed into a blank period of a video signal to generate a multiplexed signal; and a transmitter that transmits (i) the multiplexed signal, via a first channel, to the signal receiving apparatus, and (ii) a control signal to the signal receiving apparatus to be used by the signal receiving apparatus to separate the audio signal from the multiplexed signal, wherein the signal transmitting apparatus transmits the video clock to the signal receiving apparatus via a second channel that differs from the first channel to be used by the signal receiving apparatus to reproduce an audio clock for sampling the audio signal.