TRANSMITTING APPARATUS AND TRANSMITTING/RECEIVING APPARATUS
First Claim
1. A transmitter for transmitting a video/audio signal, comprising:
- dummy signal production means for producing a dummy video signal; and
video/audio transmitter means for multiplexing together the dummy video signal and an input audio signal input to the transmitter to produce and transmit a video/audio signal.
2 Assignments
0 Petitions
Accused Products
Abstract
A transmitter 14, which receives an input video signal VS_IN and an input audio signal AS_IN from an MPEG decoder 17, includes therein a dummy signal production circuit 11 and a selection circuit 12. The dummy signal production circuit 11 produces a dummy video signal VS_D having a higher resolution than that of the input video signal VS_IN. The selection circuit 12 outputs one of the input video signal VS_IN and the dummy video signal VS_D as a selected video signal VS to a video/audio transmitter circuit 13, based on a control signal CS input based on an amount of information of the input audio signal AS_IN. The video/audio transmitter circuit 13 multiplexes the input audio signal AS_IN with the selected video signal VS to produce and transmit a video/audio signal VAS. Thus, irrespective of the format of the video signal, an audio signal having a high sample rate or a multi-channel audio signal can be transmitted while being multiplexed with the video signal.
13 Citations
16 Claims
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1. A transmitter for transmitting a video/audio signal, comprising:
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dummy signal production means for producing a dummy video signal; and video/audio transmitter means for multiplexing together the dummy video signal and an input audio signal input to the transmitter to produce and transmit a video/audio signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification