Television camera and pick-up tube having stripes for improved r

Details Television camera and pick-up tube having stripes for improved r Television camera and pick-up tube having stripes for improved r

1976-04-29

1977-11-22

Martin, John C.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 44, 358217, H04N 907, H04N 530

Patent

active

040598403

ABSTRACT:
A black-white or color television camera has a pick-up tube having a signal electrode comprising separate strips. Before a line scanning operation to be performed by an electron beam takes place, the signal electrode strips are coupled to a reference potential. After the line scan, the strips which are coupled separately to parallel inputs of a switching circuit which is provided with switches coupled to the parallel inputs, are coupled for supplying video information. This results in a separation between electron beam scanning and picture signal supply by the pick-up tube, which has the advantage that the beam scanning does not affect the picture quality in the direction of line scan. Furthermore, the construction with strips yield an improved signal-to-noise ratio. The switching circuit may, possibly together with a shift register, be integrated in a semiconductor body, which is provided near the signal electrode in the pick-up tube or outside the pick-tube.

REFERENCES:
patent: 3878324 (1975-04-01), Tubbs et al.
patent: 3921206 (1975-11-01), Bohm et al.
patent: 3969763 (1976-07-01), Tan

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