Television – Format conversion – Changing number of lines for standard conversion
Patent
1997-04-07
2000-10-17
Lee, Michael H.
Television
Format conversion
Changing number of lines for standard conversion
348441, 348445, 348581, 348704, H04N 701
Patent
active
061339563
ABSTRACT:
A video signal processor interpolating lines in a vertical filter (24) in dependence on whether the lines are of a 625 line frame or a 525 line frame. The interpolated lines are filtered in a horizontal filter (26). The resultant lines are vertically and horizontally decimated by controlling the writing of the lines into a FIFO (28). A reduced size image is produced which has the same number of lines and pixels per line for both 525 and 625 line frames. The reduced size image is data compressed in a JPEG codec (50). The compression factor for a 525/60 signal is 6/5 of that for a 625/50 signal so the data rate per unit time is the same for both signals.
REFERENCES:
patent: 3742135 (1973-06-01), Baldwin
patent: 4610026 (1986-09-01), Tabata et al.
patent: 4658284 (1987-04-01), Kawamura et al.
patent: 4694337 (1987-09-01), Lyons
patent: 4751573 (1988-06-01), Kubota
patent: 5325131 (1994-06-01), Penney
patent: 5327235 (1994-07-01), Richards
patent: 5343299 (1994-08-01), Ishikawa
patent: 5381183 (1995-01-01), Ishizuka et al.
patent: 5410357 (1995-04-01), Rieger et al.
patent: 5473382 (1995-12-01), Nohmi et al.
patent: 5475442 (1995-12-01), Matsushita et al.
patent: 5497198 (1996-03-01), Kim
patent: 5534934 (1996-07-01), Katsumata et al.
patent: 5642169 (1997-06-01), Yamamoto et al.
patent: 5812210 (1998-09-01), Arai et al.
patent: 5822009 (1998-10-01), keating et al.
patent: 5828415 (1998-10-01), Keating et al.
patent: 5835151 (1998-11-01), Sun et al.
Greenwood Jonathan Mark
Ludgate Michael John
McGrath Mark John
Desir Jean W.
Frommer William S.
Lee Michael H.
Sony Corporation
Sony United Kingdom Limited
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