H - Electricity – 03 – M
Patent
H - Electricity
03
M
354/82
H03M 1/18 (2006.01) H03M 1/00 (2006.01) H04N 5/53 (2006.01) H04N 7/24 (2006.01)
Patent
CA 1299754
ABSTRACT OF THE DISCLOSURE An automatic gain control system for control ling a gain of an A/D converter automatically by controlling reference voltages of said A/D converter at the time of analog-to-digital conversion of a signal which signal being clamped by a clamp circuit to a clamp level which is set to a center level before entering said A/D convertor, comprising a clamp level control circuit for detecting the clamp level from an output of said A/D converter to control the clamp level; a first D/A converter for digital-to-analog converting an output of said clamp level control circuit; an automatic clamp level control system
592720
Kawahara Isao
Kawashima Tadashi
Koga Toyokastu
Ninomiya Yuichi
Ohtsuka Yoshimichi
Marks & Clerk
Matsushita Electric Industrial Co. Ltd.
Nippon Hoso Kyokai
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