H - Electricity – 04 – N
Patent
H - Electricity
04
N
350/47
H04N 5/14 (2006.01) H04N 5/228 (2006.01)
Patent
CA 1243395
ABSTRACT OF THE DISCLOSURE In an image pickup apparatus or television camera tube in which a signal corresponding to a target current of the television camera tube is supplied to its beam current control electrode to thereby control the beam quantity to become corresponding to the variation of the incident light amount thereon, the present invention is to provide an automatic beam current control system for a television camera in which the signal corresponding to the target current is supplied through a line adder circuit to the beam current control electrode. The line adder circuit may use, for example, a one horizontal period delay line. Since the control signal supplied to the beam current control electrode is an added value or an average value of the target currents obtained over two scanning periods, the stable control signal is always supplied to the beam current control electrode of the television camera tube so that the image picked up signal of high definition without a line crawl componet can be obtained.
495892
Tanaka Sadaaki
Ushijima Hisashi
Gowling Lafleur Henderson Llp
Sony Corporation
LandOfFree
Automatic beam current control system for television camera does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Automatic beam current control system for television camera, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic beam current control system for television camera will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1287046