Television receiver using non-interlaced scanning format with ve

Details Television receiver using non-interlaced scanning format with ve Television receiver using non-interlaced scanning format with ve

1984-05-03

1986-09-16

Shepperd, John W.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 31, 358105, H04N 978, H04N 701

Patent

active

046125671

ABSTRACT:
The television receiver displays the picture information of an interlaced signal, such as a baseband NTSC signal, in a non-interlaced scanning format. The NTSC signal is comb filtered in a line comb filter to extract a luminance representative component signal. When no motion occurs in the picture scene, vertical detail is added and substracted, respectively, from the luminance representative component signal to form first and second enhanced luminance signals, respectively. During each horizontal line interval of the NTSC signal, the corresponding portions of the first and the second signals contain luminance information capable of being displayed in consecutive non-interlaced scan lines, respectively, of the interlaced display. When motion is detected, vertical detail enhancement is diminished so that artifacts that may be more pronounced in the presence of motion, become less visible.

REFERENCES:
patent: 4050084 (1977-09-01), Rossi
patent: 4218700 (1980-08-01), Kashigi
patent: 4241363 (1980-12-01), Maeyama et al.
patent: 4295160 (1981-10-01), Lagoni
patent: 4498100 (1985-02-01), Bunting et al.
patent: 4530004 (1985-07-01), Achiha et al.
patent: 4553158 (1985-11-01), Acamporn
Article by M. Achiha et al., entitled "A Motion Adaptive High-Definition Converter for NTSC Color TV Signals", submitted to the 13th International Television Symposium in Montreaux, Canada, May 1983.
U.S. Patent Appln. Ser. No. 526,702, filed Aug. 26, 1983, entitled "Progressive Scan Television System Employing Vertical Detail Enhancement", by D. H. Pritchard, et al.

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