Apparatus and method for controlling a charge coupled device ima

Details Apparatus and method for controlling a charge coupled device ima Apparatus and method for controlling a charge coupled device ima

1993-01-15

1994-06-14

Groody, James J.

Television

Synchronization

Sync generation

348522, 348322, 348222, H04N 506, H04N 5067

Patent

active

053215095

ABSTRACT:
Apparatus and method for controlling a charge coupled device (CCD) image sensor provides, in accordance with a television standard, horizontal and vertical CCD control signals to obtain a purely sequential mode of operation on the one hand, and alternatively a modified mode of operation to permit image signals to be viewed directly on a standard viewfinder display. The apparatus includes a frequency generator, a standard timing generator, a pixel clock generator, and a small number of additional timers and logic units which are driven by signals from the generators to selectably generate the vertical and horizontal CCD control signals for the alternate modes of operation. The method includes generating a plurality of precisely timed pulses referenced to television standard synchronizing and control signals, and logically combining these pulses and standard signals to generate the vertical and horizontal CCD control signals.

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