Convergence device for a color-camera

Details Convergence device for a color-camera Convergence device for a color-camera

1982-01-20

1984-03-13

Chin, Tommy P.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358163, 358164, H04N 526, H04N 928

Patent

active

044371101

ABSTRACT:
A convergence device for a color camera having a correction memory for storing predetermined scanning correction signal values associated with each of the LN rectangles resulting from dividing the screen of the camera into L groups of N lines each and M columns, a sequencer for controlling the application of these correction signals to the camera scanner and an attenuator for attenuating the discontinuities existing between scanning correction signals associated with two adjacent lines of the same column.

REFERENCES:
patent: 3743772 (1973-07-01), Pieters et al.
patent: 3869567 (1975-03-01), Covington
patent: 3902011 (1975-08-01), Pieters et al.
patent: 4285004 (1981-08-01), Morrison et al.
Recent Advances in Broadcast Camera Design, by John O. Ryan, Conference: International Broadcasting Convention, Brighton, England Sep. 20-23, 1980) pp. 27-30.

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