Television standard converter for endoscope

Details Television standard converter for endoscope Television standard converter for endoscope

2005-08-23

2005-08-23

Vo, Tung (Department: 2613)

Television

Special applications

With endoscope

C600S101000, C348S071000

Reexamination Certificate

active

06933963

ABSTRACT:
To provide a first memory for storing an odd field data, a second memory for storing an even field data acquired in an NTSC system, a third memory for storing the same video data stored in the first and second memories, and a TV standard conversion circuit. For the data in a period for which a writing of a next data overtakes reading of the data from the first memory or the second memory, a writing into the third memory is inhibited, and the data is read from the third memory, whereby the signal of the NTSC system is converted into the signal of a PAL system. In this manner, an excellent video is displayed on a PAL monitor without any the bar noise.

REFERENCES:
patent: 5598218 (1997-01-01), Inoue
patent: 6476852 (2002-11-01), Okada
patent: 2001/0022612 (2001-09-01), Higuchi et al.

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