Television – Camera – system and detail – Combined image signal generator and general image signal...
Patent
1993-10-08
1994-12-06
Harvey, David E.
Television
Camera, system and detail
Combined image signal generator and general image signal...
348518, 348914, H04N 514
Patent
active
053715403
ABSTRACT:
In the present invention, a drive circuit 12 drives a solid-state image-pickup element 11 in synchronism with a synchronizing signal generated by a synchronizing signal generation circuit 13, and the solid-state image-pickup element 11 issues an output signal prior to an end time of a horizontal blanking period by a time period T.sub.A. This output signal is processed in a digital signal processing circuit 14 and is issued as a picture signal. At that time, the picture signal is delayed from the synchronizing signal by a time period (T.sub.B -T.sub.A) owing to the signal processing, whereas the synchronizing signal is delayed by a delay circuit 15, in which a delay time made by subtracting a time period T.sub.A from a delay time T.sub.B of the digital signal processing circuit 14 is given, and can be issued in a proper timing for a picture signal output of the digital signal processing circuit 14. Further, by incorporating the delay circuit 15 in an LSI which constitutes the digital signal processing circuit 14, a circuit-construction can be minimized and a disturbance, which is given to the picture signal by the synchronizing signal, can be remarkably eliminated.
REFERENCES:
patent: 3987243 (1976-10-01), Schwartz
patent: 4670790 (1987-06-01), Sawada et al.
patent: 4803553 (1989-02-01), Schrock et al.
patent: 4858013 (1989-08-01), Matsuda
Kitamura Yoshinori
Morimura Atsushi
Tamura Akihiro
Harvey David E.
Matsushita Electric Industrial Co.
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