Patents
Patents for H03K 4 - Generating pulses having essentially a finite slope or stepped portions (2,412)
12/1990
12/04/1990US4975600 Bicmos TTL output driver circuit
11/1990
11/29/1990DE3934319C1 Controlling width of output pulses - comparing capacitor charge with variable control voltage below set max. voltage
11/20/1990CA1276690C Pulse shaper
11/14/1990EP0397239A1 Circuit arrangement for supplying a periodic, substantially parabolic signal
11/07/1990EP0396291A2 Apparatus and methods for optical emission spectroscopy
11/06/1990CA1276042C Digitally programmable signal generator and method
10/1990
10/31/1990CN1046647A Deflection driver in video apparatus
10/24/1990EP0394024A1 A deflection driver in a video apparatus
10/24/1990EP0393839A2 Self-adapting vertical scan circuit for raster-scanned cathode ray tube displays
10/24/1990CN1046419A Control arrangement for inverter current
10/09/1990US4962344 Segmented waveform generator
10/04/1990WO1990011511A1 Method and apparatus for conducting electrochemiluminescent measurements
10/03/1990EP0390356A2 An analog pulse shaper
09/1990
09/25/1990US4959616 For generating a periodic wave form data
09/25/1990US4959594 Power saving electromagnetic deflection display system for dual mode deflection amplifier
09/11/1990US4956587 Horizontal deflection-high voltage circuit
09/04/1990US4954757 Linear deflection amplifier with energy recovery
08/1990
08/14/1990CA1272797A1 Gamma correction circuit
07/1990
07/31/1990US4945292 Dynamic vertical height control circuit
07/17/1990US4942341 Vertical ramp generator
07/17/1990CA1271858A1 Timebase generator with improved linearity and recovery time
07/04/1990EP0376391A1 Line deflection circuit arrangement for a picture display device
07/04/1990EP0375880A1 Frequency synthesis device
07/03/1990US4939443 Method and apparatus for the generation of voltage pulses
07/03/1990US4939405 Piezo-electric vibrator pump
06/1990
06/20/1990EP0373693A2 Generator of drive signals for transistors connected in a half-bridge configuration
06/12/1990US4933769 Picture display device including a staircase generator
06/05/1990US4931668 MIS transistor driven inverter circuit capable of individually controlling rising portion and falling portion of output waveform
05/1990
05/31/1990WO1990006019A1 Programmable triangle wave generator
05/29/1990US4929883 Circuit for sensing the transistor current waveform
05/17/1990WO1990005411A1 Apparatus and method for conducting measurements of electroluminescent phenomena
05/15/1990US4926131 Triangle waveform generator for pulse-width amplitude multiplier
05/03/1990DE3936234A1 Vertical deflection circuit for high resolution TV receiver - uses storage of vertical deflection current data supplied in synchronism with vertical synchronisation signal
05/03/1990DE3836531A1 Stepper motor controller
05/02/1990EP0366130A2 Linear deflection amplifier with energy recovery
04/1990
04/10/1990US4916371 Vertical deflection circuit for kinescope yokes, with flyback voltage generator
04/04/1990EP0362014A1 High energy ignition generator, especially for a gas turbine
04/03/1990US4914359 Deflecting voltage generating circuit
03/1990
03/27/1990CA1267195A1 Technique for synthesizing the modulation of a time varying waveform with a data signal
03/21/1990EP0359171A2 Circuit for sensing the transistor current waveform
03/20/1990US4910702 Field deflection circuit in a picture display device
03/14/1990EP0358098A2 Switching voltage regulator with stabilized loop gain
03/06/1990US4906904 Cathode ray tube deflection circuit with solid state switch
02/1990
02/27/1990US4904960 Precision CMOS oscillator circuit
02/27/1990US4904959 Current-controlled saw-tooth wave oscillator stage
02/14/1990EP0354357A2 Delay device
02/06/1990US4899152 Method and apparatus for temperature compensating a digital to analog converter
01/1990
01/31/1990CN2052165U Signal generator capable of simulating pile-up pulse
01/30/1990US4897581 Horizontal deflection circuit
01/30/1990US4897580 Amplifier drive circuit for inductive loads
01/24/1990EP0352137A2 Pulse-width modulator and driving unit using the same
01/23/1990US4896333 Circuit for generating a trapezoidal current waveform with matched rise and fall times
01/16/1990US4894560 Dual-slope waveform generation circuit
01/09/1990US4893117 Liquid crystal driving systems
01/02/1990US4891565 Field deflection circuit in a picture display device
12/1989
12/26/1989US4890043 Arrangement for generating a sawtooth current
12/14/1989DE3918783A1 Horizontalablenkschaltung fuer eine kathodenstrahlroehre Horizontal deflection for a kathodenstrahlroehre
12/12/1989US4887011 Computer monitor vertical sweep generator having frequency independent height control and "S" waveform correction
12/05/1989US4885585 Ramp generator reset circuit
11/1989
11/29/1989EP0343177A1 Digital-to-time converter.
11/28/1989US4884012 Vertical deflection current generator
11/23/1989EP0342801A2 Signal processing system for period-to-voltage conversion
11/14/1989US4881190 Digitally programmable signal generator and method
11/07/1989US4879505 Temperature and power supply compensation circuit for integrated circuits
11/02/1989EP0339312A1 Process for the production of a triangular-like voltage
10/1989
10/11/1989EP0336316A2 Vertical deflection circuit with service mode operation
10/03/1989US4871985 Low noise relaxation oscillator
09/1989
09/27/1989EP0334303A2 Mechanical analysis apparatus with circuitry for processing low frequency signals
09/26/1989CA1261011A1 Method for the digital slope control of the output signals of power amplifiers of semiconductor chips with vlsi circuits for a computer
09/26/1989CA1260156A1 Field-deflection circuit for use in a picture display device
09/19/1989US4868464 Linearity correction circuit for television receiver
09/12/1989US4866311 Multi-function circuit with double ended charging system
09/05/1989US4864247 High speed base drive for power amplifier
09/05/1989US4864197 Horizontal deflection circuit for video display monitor
09/05/1989US4864196 Line scanning and accelerating voltage generating circuit
08/1989
08/30/1989EP0330033A2 Current-controlled saw-tooth wave oscillator stage
08/29/1989CA1258889A1 Apparatus for smoothing an abrupt change in signal level
08/23/1989EP0329216A1 Picture display device including a waveform generator/and a compensation circuit, and integrated circuit incorporating the same
08/22/1989US4859955 Apparatus for smoothing an abrupt change in signal level
08/08/1989US4855651 Timebase circuit
07/1989
07/25/1989US4851709 Variable frequency, fixed amplitude digital sweep generator
07/19/1989EP0324089A2 Method for producing voltage pulses
07/18/1989US4849652 Circuit for producing a periodic, essentially parabolic signal
07/11/1989US4847549 Switching voltage regulator with stabilized loop gain
07/11/1989US4847524 Gamma correction circuit
07/05/1989EP0322899A2 Piezo electric vibrator pump
07/05/1989CN1033721A Picture display device including staircase generator
07/04/1989CA1256941A1 High efficiency ringing generator
06/1989
06/29/1989DE3834045A1 Dual-slope wave generator circuit
06/28/1989EP0322030A2 Arrangement for generating a sawtooth current
06/28/1989EP0322012A1 Picture display device including a staircase generator
06/28/1989EP0321794A2 Low frequency triangular wave generator easy to integrate
06/27/1989US4843255 Self-latching monostable circuit
06/20/1989US4841497 Digital time base with corrected analog interpolation
06/20/1989US4841251 Method of generating a voltage with a triangular shape from a sawtooth waveform
06/13/1989US4839653 High-speed voltage-to-frequency converter
06/07/1989CN1033322A Integrated poly-phase power meter
06/06/1989US4837464 Phase regulation circuit, particularly for horizontal phase regulation in data displays
06/06/1989US4837457 High voltage power transistor circuits
05/1989
05/30/1989US4835727 Field deflection circuit in a picture display device
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