Television – Format conversion – Line doublers type
Patent
1998-11-04
2000-06-06
Kostak, Victor R.
Television
Format conversion
Line doublers type
348452, H04N 701
Patent
active
060725311
ABSTRACT:
In a scanning system converting system for a display unit, a decoder decodes a coded image data to output a decoded image data and a control data. The coded image data is obtained by coding a first image data, and the control data indicates whether a scanning system of the first image data is a progressive scanning system or an interlace scanning system and whether fields of the first image data are correlated. A control section selectively generates the effective indication signal and first and second control signals based on the control data supplied from the decoder. A converting section selectively outputs, as a second image data, one of a current field of the decoded image data, a previous field of the decoded image data and an interpolated image data for every line based on the first and second control signals supplied from the control section. The interpolated image data is interpolated from the current field of the decoded image data for a current line and at least one line associated with the current line. A transfer section transfers the second image data to the display unit in response to the effective indication signal.
REFERENCES:
patent: 5365273 (1994-11-01), Correa et al.
patent: 5532751 (1996-07-01), Lui
patent: 5689301 (1997-11-01), Christopher et al.
patent: 5754248 (1998-05-01), Faroudjon
Japanese Office Action, dated Oct. 12, 1999, with English Langauge Translation of Japanese Examiner's comments.
Yasuada, K., "International Standard of MPEG/Multimedia Labeling,"1.sup.st Edition, Maruzen; Sept. 30, 1994, pp. 35-57.
Kostak Victor R.
NEC Corporation
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