Television camera and pick-up tube suitable therefore

Details Television camera and pick-up tube suitable therefore Television camera and pick-up tube suitable therefore

H - Electricity

04

N

350/55

H04N 5/30 (2006.01) H04N 9/07 (2006.01)

Patent

CA 1098617

PHN 8627 21.1.1977 ABSTRACT : A black-white or colour television camera comprising a pick-up tube, provided with a signal electrode composed of separated strips. Prior to a line scan to be performed by an elec- tron beam, the signal electrode strips are con- nected to a reference potential. After a scan the strips are through-connected successively through associated switches for supplying information. The switch outputs are alternatingly, in at least two groups through-connected and connected to at least two output leads. Always two switches, which are connected to two adjacent strips are closed simultaneously. In this way it is avoided that a capacitive voltage distribution across the strips and switch inputs influence the picture signal obtained in a disturbing manner. -37-

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