Patents
Sitemap › H03 - Basic electronic circuitry › H03K - Pulse technique › H03K 7 - Modulating pulses with a continuously-variable modulating signal
Patents for H03K 7 - Modulating pulses with a continuously-variable modulating signal (4,039)
11/1998
11/12/1998WO1998036493A3 Method of correcting the symbol shape error of multilevel pulses in baseband transmission caused by the use of pulse-rate modulation
11/10/1998US5835042 Signal transmission method and signal transmission apparatus
11/04/1998EP0875994A1 Delta-sigma pulse width modulator
10/1998
10/27/1998US5828270 Method and apparatus for modulating and demodulating a carrier
10/20/1998US5825242 Modulator/demodulator using baseband filtering
09/1998
09/30/1998EP0868028A2 Pulse width modulation circuit
09/23/1998CN2292355Y AC purified voltage stabilized power source
09/16/1998CN2291754Y All-digital three-phase pulsewidth modulated wave generator
09/11/1998CA2262955A1 Improvements in ultrafast time hopping cdma-rf
08/1998
08/27/1998DE19707289A1 Information coding and transmission method
08/20/1998WO1998036493A2 Method of correcting the symbol shape error of multilevel pulses in baseband transmission caused by the use of pulse-rate modulation
08/18/1998US5796302 Single pole negative feedback for class-D amplifier
08/11/1998US5793808 Digital processing apparatus and method to control multiple pulse width modulation drivers
08/11/1998US5793234 For multiple channels
08/04/1998US5789992 Method and apparatus for generating digital pulse width modulated signal using multiplied component and data signals
07/1998
07/28/1998US5786713 Driver circuit and a method for generating a driving signal
07/22/1998EP0854646A2 Digital automatic gain control (AGC) circuit
07/21/1998US5784495 Image processing device for producing a variable period pulse-width modulated binary image signal
06/1998
06/25/1998WO1998027648A1 Very low duty cycle pulse width modulator
06/09/1998US5764697 Transmitter for a radio control device
06/04/1998WO1998024203A1 Transit modulator for jittering signals
06/04/1998DE19650839A1 Durchgangsmodulator zum Verjittern von Signalen Passage modulator for jittering signals
06/03/1998EP0845863A2 Pulse-width controller
06/03/1998CN1183675A Pulse-width controller
05/1998
05/20/1998DE19744893A1 Pulse width modulated signal generator circuit
05/05/1998US5748428 Pulse width modulation and protection circuit
04/1998
04/29/1998CN1180470A Improvement in or relating to loudspeakers
04/21/1998US5742494 Circuit arrangement for driving a converter
04/14/1998US5739711 Regulation circuit for bipolar voltage switching circuits having logic circuitry using a single error amplifier for regulation of both positive and negative voltages
04/07/1998US5736893 Digital method and apparatus for reducing EMI emissions in digitally-clocked systems
03/1998
03/24/1998US5731968 X-ray apparatus comprising a power supply section for powering an X-ray tube
03/10/1998US5726609 Pulse amplitude modulator using direct digital synthesizer
02/1998
02/17/1998US5719906 Signal generator and wireless mobile system including the same
02/03/1998US5715353 Sine-wave modulator and playback/recording modulator-demodulator for a high-fidelity video playback/recording system
01/1998
01/28/1998EP0821304A1 Method and device of PWM control
01/27/1998US5712871 Method and apparatus for implementing a direct-sequence code division multiple access communication system with an M-ary pulse-position modulated spreading-sequence signal
01/14/1998EP0818122A1 Improvements in or relating to loudspeakers
12/1997
12/17/1997CN1168026A Device for production of nanosecond modulated narrow pulse
12/16/1997US5699005 Clock generator for generating a system clock causing minimal electromagnetic interference
12/04/1997DE19703986A1 Signal shaper for input signal wave form reshaping
11/1997
11/27/1997WO1997044899A1 Circuit and method for modulating pulse width
11/19/1997CN1165594A Digital pulse width modulator with integrated test and control
11/13/1997WO1997042703A1 Dithered clock circuit for reduced radio interference
11/11/1997US5686869 Pulse-width modulating device
10/1997
10/22/1997EP0801842A1 Circuit for driving a converter
10/07/1997US5675609 Sinusoidal pulse and pulse train signaling apparatus
10/01/1997EP0798856A1 Impulse generator circuit
09/1997
09/17/1997CN1159685A Signal transmission method and equipment
09/09/1997US5666385 Jitter compensation circuit
07/1997
07/30/1997EP0786867A1 Digital method and apparatus for reducing EMI emissions in digitally-clocked systems
07/29/1997US5652548 PTM signal generator combining outputs of two same frequency oscillators
07/23/1997CN2258328Y Global locating system signal automatic frequency locking device
07/09/1997EP0783147A2 Modulator having individually placed edges
07/03/1997DE19654585A1 One-bit digital signal transmission device
07/03/1997DE19635261A1 Integrated soft=start pulse width modulation power supply circuit
07/02/1997CN1153429A V/f变换器 V / f converter
06/1997
06/17/1997US5640419 Covert communication system
06/10/1997US5638017 Pulse width modulation circuit
05/1997
05/28/1997EP0776088A2 Amplifier output stage
05/28/1997EP0775384A1 Digital pulse width modulator with integrated test and control
05/07/1997EP0772296A1 Recovery of the propagation delay in a PWM circuit
05/07/1997EP0772285A1 Enhanced resolution pulse width modulation control
05/06/1997US5627500 Phase modulator having individually placed edges
04/1997
04/15/1997US5621604 PWM multiplexed solenoid driver
03/1997
03/04/1997US5608758 Radio control device having crystal high frequency module and high frequency phase lockloop for selective use, modules detachably mounted
02/1997
02/25/1997US5606296 Pulse width modulation control circuit
01/1997
01/29/1997EP0756380A1 Pulse width modulation & protection circuit
01/22/1997CN1140957A Sine-wave modulator and play-back/recording modulator-demodulator for high-fidelity video play-back-recording system
01/14/1997US5594631 Digital pulse width modulator for power supply control
01/08/1997EP0752778A1 Method and apparatus for a DS-CDMA communication system with M-ar PPM spreading-sequence signal
01/08/1997CA2153423A1 Method and apparatus for implementing a direct-sequence code division multiple access communication system with an m-ary pulse-position modulated spreading-sequence signal
12/1996
12/31/1996US5589805 Enhanced resolution pulse width modulation control
12/17/1996US5586145 Transmission of electronic information by pulse position modulation utilizing low average power
12/17/1996US5585716 Multiple stage frequency modulated circuit
11/1996
11/28/1996DE19620207A1 Pulse width modulation circuit for several channels
11/19/1996US5577071 Method for and apparatus to extract a frequency reference, a time reference and data from a single information system
11/07/1996WO1996035157A1 Method and system for demodulation of m-ary signaling
10/1996
10/31/1996DE19515487A1 Voltage to frequency converter with integrating stage
10/23/1996EP0739082A1 Switched inverter-modulator
10/22/1996CA2041222C Pulse width modulated self-clocking and self-synchronizing data transmission telephonic switching system
10/15/1996US5565820 Pulse width power supply modulator
10/03/1996WO1996031086A1 Improvements in or relating to loudspeakers
10/01/1996US5561402 Pulse width modulation method for triggering analog actuators
09/1996
09/11/1996EP0513330B1 Circuit for generating variable width pulses for a liquid cristal display driver
09/10/1996US5555168 For connection to an ac power line
09/10/1996US5554925 Pulse duration modulator and pulse duration modulation type switching power source
09/04/1996EP0730344A1 Single pole negative feedback for class-D amplifier
07/1996
07/30/1996US5541955 Adaptive data rate modem
07/30/1996US5541600 Signal processing circuit including a variable gain input stage
06/1996
06/26/1996EP0718972A2 Digital circuitry for noise blanking
06/12/1996EP0716561A1 X-ray apparatus with a power supply unit for an x-ray tube
06/05/1996EP0715408A1 Clock generator to generate a system clock with low radiation
06/05/1996EP0536326B1 Electronic time vernier circuit
06/05/1996CN1123973A Phase delaying device
05/1996
05/28/1996US5521550 Digital circuitry for noise blanking
05/23/1996WO1996015590A1 Electrical circuit utilizing avalanche transistor for generating and transmitting sine-wave energy pulses
05/21/1996US5519361 Pulse width controller adopting feedback PWM integration system employing carrier-synchronous signal
05/15/1996EP0712211A2 Phase modulation having individual placed edges
05/15/1996DE4438671C1 Schaltungsanordnung zur Ansteuerung eines Umrichters Circuit arrangement for driving a converter
05/09/1996WO1996013893A1 Circuit for driving a converter
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