Method and apparatus for making corrections in a video monitor d

Details Method and apparatus for making corrections in a video monitor d Method and apparatus for making corrections in a video monitor d

1994-06-13

1996-04-02

Groody, James J.

Television

Monitoring, testing, or measuring

348190, H04N 1700, H04N 1702, H04N 973

Patent

active

055045219

ABSTRACT:
A circuit within a video monitor for making corrections during horizontal scan includes a data storage device containing information relating to a selected display parameter, an integrator receptive of the stored information and adapted to produce an integrated signal therefrom, and an amplifier receptive of the integrated signal for supplying signals to the video monitor based on the integrated signal. The information supplied from the data storage device to the integrator is encoded in a pulse density modulated wave form via a tri-state gate and a one-shot timer. The information stored in the data storage device is stored in bytes, each byte containing a "sign bit" and a plurality of data bits.

REFERENCES:
patent: 4058826 (1977-11-01), Schneider
patent: 4772948 (1988-09-01), Irvin
patent: 4816908 (1989-03-01), Colineau et al.
patent: 5020116 (1991-05-01), McCauley
patent: 5059979 (1991-10-01), Micic et al.
patent: 5081523 (1992-01-01), Frazier
patent: 5216504 (1993-06-01), Webb

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