Television – Modular image display system
Patent
1996-04-18
1998-06-23
Kostak, Victor R.
Television
Modular image display system
348747, H04N 566
Patent
active
057710724
ABSTRACT:
A video signal processing apparatus includes synchronizing signal separation (31) for extracting a synchronization information of an input video signal, a reference clock signal source (32) for generating a signal having a constant period, phase synchronization control (33) which receives input with a clock signal output from the reference clock signal source and which outputs a phase-locked clock signal at a timing of outputting the synchronization information, and a memory (35) for storing a correction data used for correcting a video signal of one scanning line amount. The correction data is read out from the memory (35) based on the clock signal to process the input video signal. When a synthesized picture is projected, the correction data is a data which permits a luminance level of the video signal of each scanning line amount to be faded in and/or faded out at a start portion and/or an end portion thereof linearly or like a predetermined curve.
REFERENCES:
patent: 4974073 (1990-11-01), Inova
patent: 5136390 (1992-08-01), Inova et al.
patent: 5574508 (1996-11-01), Diamant
Patent Abstracts of Japan, vol. 014, No. 537 (E-1006). Nov. 27, 1990 & JP-A-02 228180 (Hitachi Denshi Ltd), Sep. 11, 1990.
Mitani Masaaki
Tokoro Tomio
Chromatek Inc.
Frommer William S.
Kostak Victor R.
Sony Corporation
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