Television – Basic receiver with additional function – For display of additional information
Patent
1997-03-04
1998-09-22
Lee, Richard
Television
Basic receiver with additional function
For display of additional information
348629, 348722, H04N 5262, H04N 5272, H04N 5278, H04N 5445
Patent
active
058122117
ABSTRACT:
The image signal processing apparatus for prompter provides a screen easy to view from which horizontal flickering on an image in horizontal scroll is eliminated. In a unit for displaying image data of a manuscript with interlace scanning, and horizontally scrolling the displayed manuscript in various speeds, a timing signal generator circuit generates clock signals with half a cycle shift, and a control circuit reads and processes even fields with clock signals with half a cycle shift at a scroll speed of, for example, a screen/six seconds, and reads and processes the last one of three continuous fields with the clock signals with half a cycle shift at a scroll speed of a screen/12 seconds. This enables it to continuously move pixels in the horizontal scroll.
REFERENCES:
patent: 4602251 (1986-07-01), Sawada et al.
patent: 5146329 (1992-09-01), Flamm
patent: 5432563 (1995-07-01), Kasahara
patent: 5555443 (1996-09-01), Ikehama
patent: 5715019 (1998-02-01), Yata
patent: 5721586 (1998-02-01), Shimamura et al.
Fuji Photo Optical Co., Ltd.
Lee Richard
Snider Ronald R.
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