Video camera and its control method

Details Video camera and its control method Video camera and its control method

1995-06-14

1996-09-17

Garber, Wendy R.

Television

Camera, system and detail

Combined image signal generator and general image signal...

348229, H04N 973

Patent

active

055573258

ABSTRACT:
A video camera comprises an image pickup device, an extracting circuit to extract a partial image signal corresponding to a picture plane range of a predetermined portion from a whole image signal which is generated from the image pickup device, and a microcomputer to determine a correction value of the whole image signal on the basis of an output signal of the extracting circuit. The extracting circuit has a function to generate an interruption signal to the microcomputer at a time point when the extracting operation of the partial image signal by the extracting circuit ends. The video camera further has a correcting circuit to correct the whole image signal on the basis of the correction value decided by the microcomputer.

REFERENCES:
patent: 4719511 (1988-01-01), Hirobe et al.
patent: 5093716 (1992-03-01), Kondo et al.
patent: 5128769 (1992-07-01), Arai et al.
patent: 5184172 (1993-02-01), Miyazaki
patent: 5363137 (1994-11-01), Suga et al.
patent: 5489939 (1996-02-01), Haruki et al.
Encyclopedia of Computer Science & Engineering, 2nd ed., Ralston and Reilly, Jr., editors, 1983 Hellerman, Herbert, Interrupt, pp. 801-804.

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