Method for correcting digital convergence of multi-mode projecti

Details Method for correcting digital convergence of multi-mode projecti Method for correcting digital convergence of multi-mode projecti

1995-03-07

1997-05-06

Kostak, Victor R.

Television

Video display

Projection device

31536812, 348807, H04N 928

Patent

active

056276052

ABSTRACT:
A method for correcting digital convergence performed with respect to four modes of NTSC, ED, MUSE and ZENITH only by adjusting the convergence for a single mode on a software basis includes the steps of adjusting a specific mode and calculating correction data based on adjustment data for the specific mode and storing adjustment data and correction data in memory, and calculating correction data of other modes based on correction data stored for the specific mode, thereby remarkably improving the accuracy of the convergence, facilitating adjustment time and adjustment itself, simplifying the system to cut down the price of the system while enabling digital convergence of a multi-sync projection television to apply it to household use and monitors for personnel computers and video conferencing.

REFERENCES:
patent: 4672275 (1987-06-01), Ando
patent: 4673847 (1987-06-01), Louie et al.
patent: 4816908 (1989-03-01), Coleneau et al.
patent: 5216497 (1993-06-01), Tsujihara et al.
patent: 5272421 (1993-12-01), Kimura et al.
patent: 5345280 (1994-09-01), Kimura et al.

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