Apparatus and method for digital convergence correction

Details Apparatus and method for digital convergence correction Apparatus and method for digital convergence correction

1996-03-22

1998-08-04

Lee, Michael

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348806, 31536813, 31536812, H04N 928

Patent

active

057902100

ABSTRACT:
Among the total sampling points for digital convergence, a portion are selected as seed points. Correction data of each of the selected seed points is efficiently stored in a first memory. The correction data of the sampling points which are not stored is interpolated using operation values. The operation values for the interpolation operation are stored ahead of time in a look-up table. Thus, rather than using dedicated calculating circuits for performing an interpolation operation, hardware is simplified and operation speed is enhanced.

REFERENCES:
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patent: 5298985 (1994-03-01), Tsujihara et al.
patent: 5345280 (1994-09-01), Kimura et al.
patent: 5463427 (1995-10-01), Kawashima
patent: 5565744 (1996-10-01), Teuling et al.
patent: 5694181 (1997-12-01), Oh

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