Apparatus and method for converting an HDTV signal to a non-HDTV

Television – Basic receiver with additional function – Multimode

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348402, 348443, H04N 701

Patent

active

055194460

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.

REFERENCES:
patent: 5187575 (1993-02-01), Lim
patent: 5365276 (1994-11-01), Imai et al.
patent: 5371549 (1994-12-01), Park
patent: 5384974 (1995-02-01), Bae
IEEE Transaction on Consumer Electronics-vol. 35, No. 3-Aug. 1989.

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