Apparatus and method for converting an HDTV signal to a non-HDTV signal
First Claim
1. A digital video signal reception apparatus comprising:
- multiplexer selection control means for outputting a plurality of control signals according to a format of a compressed input digital video signal;
decoding means for decoding the compressed input digital video signal;
frame rate conversion means for convening a frame rate of the decoded digital video signal from said decoding means into a desired value under the control of said multiplexer selection control means;
first multiplexing means for selecting one of the decoded digital video signal from said decoding means and an output video signal from said frame rate conversion means under the control of said multiplexer selection control means;
decimation means for performing a decimation operation to convert the number of horizontal scanning lines of an output video signal from said first multiplexing means into a desired value;
display mode conversion means for performing a display mode conversion operation so that an output video signal from said decimation means can be displayed in a desired display mode; and
display processing means for displaying an output video signal from said display mode conversion means on a screen of a monitor.
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Abstract
A digital video signal reception apparatus comprising a multiplexer selection controller for outputting a plurality of control signals according to a format of a compressed input digital video signal, a decoder for decoding the compressed input digital video signal, a frame rate conversion circuit for convening a frame rate of the decoded digital video signal from the decoder into a desired value under the control of the multiplexer selection controller, a multiplexer for selecting one of the decoded digital video signal from the decoder and an output video signal from the frame rate conversion circuit under the control of the multiplexer selection controller, a decimation circuit for performing a decimation operation to convert the number of horizontal scanning lines of an output video signal from the multiplexer into a desired value, a display mode conversion circuit for performing a display mode conversion operation so that an output video signal from the decimation circuit can be displayed in a desired display mode, and a display processor for displaying an output video signal from the display mode conversion circuit on a screen of a monitor. The received video signal can be displayed on an existing non-high definitions TV receiver in various display modes. Therefore, the user can view an HDTV broadcasting even on the existing non-high definitions TV receiver.
86 Citations
23 Claims
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1. A digital video signal reception apparatus comprising:
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multiplexer selection control means for outputting a plurality of control signals according to a format of a compressed input digital video signal; decoding means for decoding the compressed input digital video signal; frame rate conversion means for convening a frame rate of the decoded digital video signal from said decoding means into a desired value under the control of said multiplexer selection control means; first multiplexing means for selecting one of the decoded digital video signal from said decoding means and an output video signal from said frame rate conversion means under the control of said multiplexer selection control means; decimation means for performing a decimation operation to convert the number of horizontal scanning lines of an output video signal from said first multiplexing means into a desired value; display mode conversion means for performing a display mode conversion operation so that an output video signal from said decimation means can be displayed in a desired display mode; and display processing means for displaying an output video signal from said display mode conversion means on a screen of a monitor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification