Robert Boschgmbh

Hans-Wilhelm Zappen

Klaus D Muller

Gerd Bock

Friedrich Zimmermann

Herbert Zettl

Ernst Rau

High-frequency portions of the video signals are substantially damped at low signal levels by including, selectively, a low-pass filter (12) in circuit with a signal path, selectively, in accordance with the setting of a transfer switch (13), the setting of which is controlled as a function of the signal level with respect to a threshold (U.sub.St), which may vary, for example in accordance with amplification of a signal being received from a television camera tube system (1,2,3).

Video signal noise reduction circuit

A method and circuitry for reading out data from a TV pickup (image sensor) designed for the 525-line television standard, and operated in accordance with a line interlace process by once-repeated read-out of each line. In order to adapt the TV pickup (image sensor) to a 625-line television standard, every third line scan is repeated twice, i.e., every third line is read out three times. Both analog and digital circuits are presented.

Growing community of inventors

Bensheim, Germany

Hans-Wilhelm Zappen