Patents
Patents for H03K 4 - Generating pulses having essentially a finite slope or stepped portions (2,412)
02/1995
02/28/1995US5394020 Vertical ramp automatic amplitude control
02/07/1995US5387882 Switched capacitor charge pump and sawtooth oscillator using same
02/07/1995CA2039775C Parabola generators with auxiliary reset function
01/1995
01/25/1995EP0396679B1 Programmable triangle wave generator
01/24/1995US5384554 Voltage controlled oscillator circuit employing integrated circuit component ratios
01/18/1995CN1027470C Integrated poly-phase power meter
01/10/1995US5381044 Bootstrap circuit for driving a power MOS transistor
12/1994
12/06/1994CA2002100C Apparatus for conducting measurements of electrochemiluminescent phenomena
12/01/1994DE4317154A1 Circuit for driving a switching transistor
11/1994
11/30/1994EP0626669A2 Deflection apparatus for raster scanned CRT displays
11/29/1994CA2000011C Self-adapting vertical scan circuit for raster-scanned cathode ray tube displays
11/09/1994CN1026543C 信号延迟电路 Signal delay circuit
11/08/1994US5363022 Horizontal deflection circuit with reduced VLF electric fields from CRT displays
10/1994
10/19/1994CN1093809A Wave generator
10/11/1994US5355390 Communication apparatus for transmitting and receiving communication signals through common transmission line
09/1994
09/13/1994US5347176 Analog ramp generator with digital correction
09/08/1994DE4306950A1 Electronic switching device
09/07/1994EP0521937B1 Circuit arrangement for producing a vertical frequency deflection current
08/1994
08/23/1994US5341071 Piecewise linearized focus voltage circuit for television apparatus
08/23/1994CA1331637C High-energy ignition generator especially for a gas-turbine
07/1994
07/26/1994CA2052248C Constant current circuit and an oscillating circuit controlled by the same
07/19/1994US5331256 Focus yoke, electromagnetically focused CRT display with the focus yoke, and negative feedback circuit with stray-capacitor-cancellation means used for the CRT display or the like
07/12/1994US5328111 Method for controlling the position of the inversion point of the yarn, particularly for spooling machines, and corresponding equipment
06/1994
06/28/1994CA2012418C Method and apparatus for conducting electrochemiluminescent measurements
06/22/1994EP0603077A1 Controlled delay digital clock signal generator
06/22/1994EP0602109A1 Vertical deflection circuit.
06/21/1994CA1330371C Linear deflection amplifier with energy recovery
06/17/1994CA2111054A1 Controlled delay digital clock signal generator
06/01/1994EP0599823A1 A deflection driver in a video apparatus
06/01/1994DE4239666A1 Tangential equalisation of vertical deflection circuits - generating second sawtooth voltage by capacitor charging with load current until discharge
05/1994
05/31/1994US5317199 Ramp generator system
05/18/1994CN1024620C Deflection driver in video apparatus
05/17/1994US5313146 Circuit arrangement for producing a vertical frequency deflection current
05/10/1994US5311150 Convertible oscillator circuit
04/1994
04/20/1994CN1085699A Analog type step wave generator
04/07/1994DE4233366A1 Vertical deflection output stage for TV receiver - includes power transistors with base-to-emitter resistor ensuring sufficient flyback current from less than base-to-emitter voltage
04/05/1994US5300821 Power controller
03/1994
03/31/1994DE4219790A1 Pulse forming module for data word pulse sequence - uses flank generator providing rounded rectangular pulses with given pulse flank gradient
03/22/1994US5296191 Method and apparatus for conducting electrochemiluminescent measurements
03/22/1994CA2000673C Programmable triangle wave generator
02/1994
02/08/1994US5285251 Apparatus and methods for optical emission spectroscopy
02/01/1994US5283515 Automatic calibration system for a ramp voltage generator
02/01/1994US5283476 Waveform generator
01/1994
01/27/1994DE4224586A1 Capacitor recharging circuit with three current banks - has first bank supplied with constant current to provide capacitor charging current, with second bank representing control input
01/12/1994EP0578021A2 Hearing aid
01/12/1994EP0578020A2 Hearing aid with an integrated circuit
01/05/1994EP0576994A1 A signal wave forming circuit
12/1993
12/30/1993CA2099236A1 Hearing aid
12/30/1993CA2099208A1 Hearing aid having an integrated circuit
12/22/1993EP0574982A1 Switched capacitor charge pump, as well as sawtooth oscillator comprising such a switched capacitor charge pump
12/22/1993EP0574979A1 Sawtooth oscillator
12/22/1993EP0574379A1 Coupled regenerative oscillator circuit
12/09/1993WO1993024996A1 Automatic calibration system for a ramp voltage generator
12/07/1993US5268847 Digital synthesis of waveforms
11/1993
11/25/1993DE4310151A1 Digitised frequency-amplitude characteristic storage and evaluation circuit for RAM, ROM and EPROM stored values - has clocked counter for outputting sequential even numbered outputs, and for receiving counter reset pulse for odd numbered contents.
11/25/1993DE4234735C1 Sawtooth voltage generation system - uses two capacitors each supplied with respective charging and discharging currents to provide frequency compensation
11/16/1993US5262684 Driving circuit for horizontal output circuit
11/11/1993WO1993022833A1 Improved ramp generator system
10/1993
10/06/1993EP0564271A1 Waveform generating circuit
10/06/1993EP0564033A1 Electric circuit comprising a local oscillator circuit and local oscillator for such a circuit
09/1993
09/22/1993CN1076573A Service adjustment arrangement for a sawtooth generator of a video display
09/21/1993US5247253 Eddy current proximity sensing means and method useful for determining throttle position
09/21/1993US5247243 Method and apparatus for conducting electrochemiluminescent measurements
09/08/1993EP0559058A1 A generator for sawtooth signal with selectable retrace slope for a deflection apparatus
09/08/1993EP0559052A1 Service adjustment arrangement for a sawtooth generator of a video display
09/07/1993US5243263 Service adjustment arrangement for a sawtooth generator of a video display
08/1993
08/25/1993EP0556596A1 Fully-differential relaxation-type voltage controlled oscillator and method therefor
08/25/1993EP0556273A1 Proximity sensing means and method
08/03/1993US5233419 Vertical deflection device of high definition television
08/03/1993US5233315 Coupled regenerative oscillator circuit
07/1993
07/27/1993US5231362 Circuit device for phasing an oscillator
07/06/1993US5225714 Sawtooth waveform generator for a convergence correction circuit
06/1993
06/29/1993US5224015 High energy ignition generator in particular for a gas turbine
06/29/1993US5223799 Parabolic signal generator
06/15/1993US5220201 Phase-locked signal generator
06/01/1993US5216336 Generator for sawtooth signal with selectable retrace slope for a deflection apparatus
04/1993
04/20/1993US5204561 Gate control circuit for mos transistor
04/13/1993US5202846 Prime number spur reduction for digital synthesis
03/1993
03/31/1993EP0534519A1 Method for controlling the position of the inversion point of the yarn for spooling machines, and corresponding equipment
03/30/1993US5198731 Linearization of vertical reference ramp
03/23/1993US5196732 Step voltage generator
03/18/1993WO1993005575A1 Vertical deflection circuit
03/17/1993EP0532164A2 Parabolic signal generator
03/16/1993US5194831 Fully-differential relaxation-type voltage controlled oscillator and method therefor
02/1993
02/24/1993CN1069378A Slow turn-on in deflection circuit
02/17/1993EP0527328A1 Slow turn-on in a deflection circuit
02/03/1993EP0525869A1 Bootstrap circuit for driving a power MOS transistor in pull-up mode
01/1993
01/27/1993EP0308540B1 Oscillator circuit
01/13/1993EP0521937A1 Circuit arrangement for producing a vertical frequency deflection current.
01/13/1993CN1067999A Linearization of vertical reference ramp
01/05/1993US5177414 Vertical deflection circuit
12/1992
12/30/1992EP0520331A2 Horizontal deflection circuit with a driving transformer
11/1992
11/24/1992US5166540 Stepped signal generating circuit
11/17/1992US5164611 Low noise communication bus driver
10/1992
10/13/1992US5155452 Linearized and delay compensated all CMOS VCO
09/1992
09/30/1992EP0343177B1 Digital-to-time converter
09/23/1992EP0504687A2 A feedback arrangement in a deflection circuit
09/17/1992WO1992016050A1 Voltage-frequency converter
09/09/1992CN1064382A 垂直偏转电路 Vertical deflection circuit
09/08/1992US5146188 Constant current circuit and an oscillating circuit controlled by the same
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