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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Yost; Thomas D.
Address:
Indianapolis, IN
No. of patents:
9
Patents:












Patent Number Title Of Patent Date Issued
5473390 Component to composite video signal converter circuit December 5, 1995
A bias source (R7,R8,C24) connected to a summing amplifier (Q1) produces a first DC bias at the amplifier input (emitter) and a second DC bias at the amplifier output (collector). A first circuit node (B) is AC coupled (22) to a luminance signal source (Y1, 18), DC coupled via a first re
4583121 Backporch gating pulse generator subject to disabling during vertical sync interval April 15, 1986
In a TV receiver, a line-rate gating pulse generator includes a source of line-rate timing pulses of "backporch" timing relative to the horizontal blanking intervals of received TV signals. Normally, the time constant of a capacitor charging circuit, enabled by the leading edge of each t
4581630 Constant width burst gate keying pulse generator April 8, 1986
A keying pulse generator for a color television burst gate provides a gating pulse in response to horizontal synchronizing pulses when present and in response to horizontal retrace pulses when sync pulses are absent. A timing circuit is provided to maintain a constant width keying pulse
4554577 Keyed DC stabilization system with protection from error introduction during vertical sync inter November 19, 1985
DC stabilization system for a color TV receiver includes three control loops, each including a keyed comparator for comparing a respectively different one of a set of blue, green and red color signals with a common reference voltage during keying periods determined by line rate keying of
4400733 Synchronizing pulse separator August 23, 1983
A synchronizing pulse separator providing output having reduced dependence upon the average signal amplitude level of the composite video signal input comprises a low pass filter coupled to the source of composite video signals. The low pass filter removes high frequency noise components
4371891 Chrominance signal processor February 1, 1983
A frequency selective chrominance signal translating circuit for use in a color television receiver employing a comb filter is disclosed. The comb filter responds to switching signals for providing separate outputs from which the luminance and chrominance television signal components are
4316214 Keying signal generator with input control for false output immunity February 16, 1982
A source of keying signals for use by keyed circuits in a television receiver comprises a keyed transistor, an input coupling circuit including a timing control circuit responsive to video sync signals for timing the operation of the keyed transistor to normally produce keying signals
4313130 Keying signal generator with false output immunity January 26, 1982
A circuit for generating a composite keying signal comprises a gate pulse generating circuit and a voltage translating network in a television receiver also including keyed video signal processing circuits. The composite keying signal comprises a first pulse developed by the translat
4207590 Combined phase shift filter network in a color video signal processing system employing dynamic June 10, 1980
A combined phase shift and bandpass filter circuit in a color television receiver including color signal demodulators, and an automatic flesh tone correction network which provides a reference signal for the color demodulators, is disclosed. The circuit comprises an integral bandpass










 
 
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