H - Electricity – 04 – N
Patent
H - Electricity
04
N
350/47, 355/6
H04N 5/14 (2006.01) H04N 5/228 (2006.01)
Patent
CA 1176758
PHN 9874 8 ABSTRACT: A television camera comprises a control cir- cuit for controlling the electron beam current intensity in at least one pick-up tube. To prevent oscillations in a positive feedback control loop a picture signal amplifier in the control loop is provided with a multi- step signal limiter. To this end, for a two-step signal limitation, a diode and a Zener diode have been provided the junction of which is connected to the base of a biased signal amplifier transistor via a resistor, a second resistor being arranged between the other ter- minals of the diode and the Zener diode. The junction of the first diode and the second resistor is connected via at least a second diode to the collector of the sig- nal amplifier transistor and the base of an emitter fol- lower transistor connected thereto. The junction of the first Zener diode and the second resistor is connected via a second Zener diode to a voltage terminal.
388486
Van Buul Marinus C.w.
Philips'gloeilampenfabrieken N.v.
Van Steinburg C.e.
LandOfFree
Television camera comprising a control circuit for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Television camera comprising a control circuit for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Television camera comprising a control circuit for... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1271129