Television – Format conversion – Line doublers type
Patent
1997-02-14
2000-03-21
Faile, Andrew I.
Television
Format conversion
Line doublers type
348452, H04N 701, H04N 1120
Patent
active
060408685
ABSTRACT:
A video display converting circuit for converting scanning patterns from interlaced scanning to sequential scanning of a display device includes an input terminal for receiving an input interlaced scanning video signal having alternating odd and even fields of scanning lines; a first line memory for storing picture elements of the input interlaced scanning video signal in a first line of an odd field; a second line memory for storing picture elements of the input interlaced scanning video signal in a last line of an even field; a plurality of sequential line memories for storing picture elements of the input interlaced scanning video signal in sequence for each scanning line; a demultiplexer for sequentially inputting the picture elements of the input interlaced scanning video signal into each of the first line memory, the second line memory and each of the plurality of sequential line memories in accordance with a write clock signal; a first multiplexer for producing a first output signal by multiplexing between the picture elements of the input interlaced scanning video signal stored in one of the first line memory, the second line memory and selected one from the plurality of sequential line memories in accordance with a read clock signal; an interpolator for interpolating picture elements between adjacent scanning lines of the input interlaced scanning video signal in one of the odd field and the even field to produce interpolated picture elements; a second multiplexer for producing a second output signal representing a sequential scanning video signal by multiplexing between the picture elements contained in the first output signal and the interpolated picture elements provided from the interpolator; and a control section for controlling operations of each of the demultiplexer, the first and second demultiplexers.
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Bushnell Esq. Robert E.
Chu Dinh Cao Peter
Faile Andrew I.
Samsung Electronics Co,. Ltd.
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