Patents
Patents for H03K 5 - Manipulating pulses not covered by one of the other main groups in this subclass (25,714)
03/1990
03/08/1990WO1990002448A1 A bicmos inverter circuit
03/07/1990EP0357213A2 Low power sense amplifier for programmable logic device
03/07/1990EP0357131A2 Amplifier arrangement, in particular for amplifying a digital signal
03/07/1990EP0357046A2 Signal processing device for analogue to digital conversion
03/07/1990EP0356986A2 Buffer circuit for logic level conversion
03/07/1990CN1007116B Digital wire receiver
03/07/1990CN1007112B Frequency synthesizer circuit for generating analog of digitally step-adjustable frequency
03/06/1990US4907121 Comparator with extended common-mode input voltage range
03/06/1990US4906871 Level shift circuit for converting a signal in an ecl level into a signal in a cmos logic level
03/06/1990US4906867 Buffer circuit with load sensitive transition control
02/1990
02/28/1990EP0356042A1 Method and apparatus for synchronising clock signals
02/28/1990EP0355922A1 Input circuit with accelerated switching
02/28/1990EP0355835A2 Self-timing analog-to-digital converting system
02/28/1990EP0355769A2 Clock supply circuit
02/28/1990EP0355329A2 Circuit for phase shifting
02/28/1990EP0134220B1 Write strobe generator for clock synchronized memory
02/27/1990US4904948 Phase comparator circuit
02/27/1990US4904947 Method and circuit for measuring pulse width
02/27/1990US4904924 Output circuit for outputting a level shifted output signal
02/21/1990CN1039938A Conversion circuit
02/21/1990CN1006950B Method and apparatus for editing particle produced electrical pulses
02/20/1990US4902970 Apparatus for measuring the speed of an object with circuit for converting analog signals into logic signals and circuit for varying sensitivity
02/20/1990US4902913 Analog comparator
02/20/1990US4902911 Semiconductor integrated circuit having a built-in power voltage generator
02/20/1990CA1266098A1 Phase detecting circuit
02/15/1990DE3826881A1 Method for converting a sequence of pulses with a smaller duty ratio into a wave form having a larger duty ratio
02/14/1990EP0354842A1 Transition steepener for digital signals and digital-to-analogue converter containing such transition steepener in its input
02/14/1990EP0354357A2 Delay device
02/14/1990CN1039688A Cmos programmable logic array
02/13/1990US4901315 Integrated data and timing circuitry for automatic circuit tester
02/13/1990US4900952 Voltage comparison apparatus
02/13/1990US4900951 Latch-up restoration circuit
02/13/1990US4900950 Power on reset circuit for a MOS technology integrated circuit
02/13/1990CA1265848A1 Method of obtaining a digital signal and a digital difference frequency mixer
02/08/1990WO1990001233A1 Conversion circuit
02/07/1990EP0353807A1 Phase detection circuit for stepwise measurement of a phase relation
02/07/1990EP0265435B1 Circuit for protecting against interference voltages occurring on signalling lines
02/06/1990US4899152 Method and apparatus for temperature compensating a digital to analog converter
02/06/1990US4899071 Active delay line circuit
02/06/1990US4899068 Comparison circuit with error compensated mos switches
01/1990
01/31/1990EP0353134A2 Circuit to perform variable threshold logic
01/31/1990EP0352758A2 Method and circuit configuration for detecting rapid damping changes with a proximity switch
01/30/1990US4897857 FSK demodulating device
01/30/1990US4897569 CMOS amplifier for memories
01/30/1990US4897559 Variable clock delay circuit utilizing the R-C time constant
01/29/1990EP0306519A4 Current sensing differential amplifier.
01/24/1990EP0351874A2 Output circuit
01/24/1990EP0351820A2 Output circuit
01/24/1990EP0351697A1 Converter circuit
01/23/1990US4896059 Circuit to perform variable threshold logic
01/16/1990US4894791 Delay circuit for a monolithic integrated circuit and method for adjusting delay of same
01/16/1990US4894651 Broadband signal switching equipment
01/16/1990US4894626 Variable length shift register
01/11/1990DE3822858A1 Method and circuit arrangement for producing a phase-shifted clock signal
01/10/1990EP0350184A2 Pulse train interruption sensing circuit
01/10/1990EP0350178A2 An output circuit for outputting a level shifted output signal
01/10/1990EP0349981A2 Logic circuit
01/10/1990EP0349954A2 Voltage clamped differential to single ended converter circuit
01/10/1990EP0349715A2 Method and circuit for producing a phase-delayed clock signal
01/10/1990EP0203096B1 Self-correcting frequency dividers
01/10/1990CN1038731A Binary data regenerator with adaptive threshold level
01/09/1990US4893274 Semiconductor memory device having level converters
01/09/1990US4893122 Parallel analog to digital converter employing sample and hold stages
01/09/1990US4893036 Differential signal delay circuit
01/09/1990US4893029 Power supply noise protection circuit
01/03/1990EP0349205A2 Differential analog comparator
01/03/1990EP0349028A2 Integrated semiconductor circuit comprising a differential pair of FETs
01/03/1990EP0348643A1 Threshold circuit with a preset threshold
01/03/1990EP0348539A1 Programmable CMOS logic array
01/02/1990US4891627 Device for detecting object
12/1989
12/28/1989DE3821229A1 Circuit arrangement for producing pulses having a high edge gradient
12/27/1989EP0348079A2 Symmetric integrated amplifier with controlled DC offset voltage
12/27/1989EP0348051A1 Output circuit having a voltage level shifting circuit
12/27/1989EP0347983A2 Electronic delay control circuit
12/27/1989EP0347759A2 Speed enhancement technique for CMOS circuits
12/27/1989CN1006217B Device for indicating elevator remove
12/26/1989US4890308 Scanning pulse generating circuit
12/26/1989US4890022 Delay circuit device utilizing the Miller effect
12/21/1989DE3820314A1 Circuit arrangement for monitoring clocks which are to be synchronized to one another
12/20/1989EP0347359A2 CMOS data recovery system
12/20/1989EP0347189A2 Circuit for protecting input of semiconductor device
12/20/1989EP0347048A2 A CMOS differential driver
12/20/1989CN1038191A Voltage level conversion circuit
12/19/1989US4888790 Timing recovery system using bipolar-pattern center estimator
12/19/1989US4888603 Light emitting diode array
12/19/1989US4888505 Voltage multiplier compatible with a self-isolated C/DMOS process
12/13/1989EP0345893A1 Integrated semiconductor circuit comprising a frequency divider circuit dividing by two
12/13/1989EP0345621A2 High speed CMOS comparator with hysteresis
12/12/1989US4886983 Reset pulse generating device
12/06/1989EP0344368A1 Improvements in or relating to delay circuits
12/05/1989US4885585 Ramp generator reset circuit
12/05/1989US4885484 Voltage clamped differential to single ended converter circuit
12/05/1989US4885475 Precision 50 percent duty cycle controller
11/1989
11/30/1989WO1989011755A1 Driver circuit
11/30/1989DE3816789A1 Pulse regenerator
11/29/1989EP0343899A2 Circuit for generating pulses having controlled duty cycle
11/29/1989EP0343898A2 Frequency doupling circuit
11/29/1989EP0343537A2 Timing generator
11/29/1989EP0343484A2 Touchless proximity switch for railway installations
11/29/1989EP0343317A2 Filter circuit