Signal transmission apparatus

Abstract

A transmission apparatus for digitally transmitting a video signal through a transmission path, includes an acquiring unit to acquire a video signal generated by decoding a compressively coded signal, and a transmission pass coder to multiplex a luminous signal and a color difference signal which compose the acquired video signal in a video signal period, and multiplex a control signal related to the video signal in a blanking period. The control signal is (1) information to be used by a receiving apparatus which receives the video signal to adjust image quality of the video signal, and (2) includes information indicating whether the compressively coded signal based on which the video signal transmitted by the transmission pass coder is generated is I picture, P picture, or B picture.

1 . A transmission apparatus for digitally transmitting a video signal through a transmission path, comprising:
 an acquiring unit to acquire a video signal generated by decoding a compressively coded signal; and   a transmission pass coder to multiplex a luminous signal and a color difference signal which compose the acquired video signal in a video signal period, and multiplex a control signal related to the video signal in a blanking period,   wherein the control signal is (1) information to be used by a receiving apparatus which receives the video signal to adjust image quality of the video signal, and (2) includes information indicating whether the compressively coded signal based on which the video signal transmitted by the transmission pass coder is generated is I picture, P picture, or B picture.