Patents
Patents for H03B 28 - Generation of oscillations by methods not covered by groups , including modification of the waveform to produce sinusoidal oscillations (1,097)
03/2001
03/20/2001US6204733 Multiple-phase-interpolation LC voltage-controlled oscillator
03/15/2001WO2001019047A1 Phase interpolation receiver for angle modulated rf signals
02/2001
02/27/2001CA2201352C Multi-channel transceiver having an adaptive antenna array and method
02/15/2001DE19619916C2 Ratengeneratorschaltung für Halbleiter-Prüfsystem Rate generator circuit for semiconductor test system
02/06/2001US6185594 Versatile signal generator
01/2001
01/31/2001CN2417632Y Direct digital frequency synthesis device
01/09/2001US6173301 Method of generating signal amplitude responsive to desired function, and converter
12/2000
12/28/2000WO2000055973A3 Direct digital frequency synthesis enabling spur elimination
12/26/2000US6167102 System and method employing a reduced NCO lookup table
12/26/2000US6167099 Multi-channel digital transceiver and method
12/26/2000US6166568 Method and arrangement for generating orthogonal sinusoidal signals
12/06/2000EP1057252A1 Direct digital synthesis of precise, stable angle modulated rf signal
11/2000
11/30/2000WO2000072120A1 Digital synthesizer with coherent division
11/30/2000CA2374707A1 Digital synthesizer with coherent division
11/28/2000US6154640 Method and apparatus for communication and signal synthesis
10/2000
10/24/2000US6137326 Clock signal producing device
09/2000
09/21/2000WO2000055973A2 Direct digital frequency synthesis enabling spur elimination
09/20/2000EP1037379A2 Direct-digital synthesizers
09/19/2000US6122326 High precision, low phase noise synthesizer with vector modulator
09/19/2000CA2079320C Direct digital synthesizer driven phase lock loop frequency synthesizer with hard limiter
09/14/2000WO2000054401A1 Method for generating a signal with adjustable frequency using a dither signal generator
08/2000
08/22/2000US6107848 Phase synchronisation
08/15/2000US6104252 Circuit for automatic frequency control using a reciprocal direct digital synthesis
07/2000
07/25/2000US6094101 Direct digital frequency synthesis enabling spur elimination
07/19/2000EP1020023A1 Multiple-phase-interpolation lc voltage-controlled oscillator
06/2000
06/28/2000EP1012803A1 Drive circuit for reactive loads
06/20/2000US6078629 Digital synthesizer
06/14/2000CN1053536C Signal generator
06/08/2000WO2000033456A1 Oscillator and telecommunications system with such an oscillator
06/07/2000CN1256023A Frequency synthetic circuit regulated by digit
05/2000
05/17/2000CN1253332A Direct digital integrator
05/09/2000US6060917 Frequency synthesizer
05/03/2000EP0997809A2 Direct digital synthesizer
05/03/2000CN1252186A AFC-digital tuning through mutual digital synthesis
05/02/2000US6057715 Clock signal generating circuit for generating a clock signal having an arbitrary frequency
04/2000
04/29/2000CA2281407A1 Direct digital synthesizer
04/19/2000EP0901713B1 Generator for producing a high-frequency, low-noise signal
04/19/2000EP0704117B1 Compensated digital frequency synthesizer
04/18/2000US6052105 Wave generation circuit for reading ROM data and generating wave signals and flat matrix display apparatus using the same circuit
03/2000
03/29/2000EP0989669A1 Digital frequency generator
03/29/2000EP0988691A1 Frequency synthesis circuit tuned by digital words
03/29/2000EP0870359B1 Digital frequency generator
03/23/2000WO2000008792A3 Frequency shifting using convolution and an nco
02/2000
02/23/2000EP0934625A4 Numerical voltage controlled oscillator
02/22/2000US6028412 Digital frequency generator
02/17/2000WO2000008792A2 Frequency shifting using convolution and an nco
02/10/2000WO2000007290A1 Multiple-phase-interpolation lc voltage-controlled oscillator
01/2000
01/26/2000EP0974196A1 Afc-digital tuning through mutual digital synthesis
01/19/2000EP0570444B1 Frequency synthesiser
01/05/2000EP0969349A1 Digital signal synthesiser
12/1999
12/29/1999WO1999067877A1 Synthesising a sine wave
12/29/1999CA2334975A1 Synthesising a sine wave
12/08/1999EP0963075A2 Clock signal producing device
12/08/1999EP0962056A1 Circuit including a discrete time oscillator
12/08/1999CN1047267C Method and device for generating amplitud-coupled voltage and for controlling multi-phase winding electric machine
11/1999
11/02/1999US5977805 Frequency synthesis circuit tuned by digital words
10/1999
10/28/1999WO1999043080A9 Direct digital synthesis of precise, stable angle modulated rf signal
10/27/1999EP0951750A1 Method and circuit configuration for producing sinusoidal/cosinusoidal oscillations
09/1999
09/14/1999US5952895 Direct digital synthesis of precise, stable angle modulated RF signal
09/14/1999CA2158667C Method and apparatus for communication and signal synthesis
09/10/1999WO1999033182A3 Circuit including a discrete time oscillator
08/1999
08/26/1999WO1999043080A1 Direct digital synthesis of precise, stable angle modulated rf signal
08/11/1999EP0935339A1 Versatile signal generator
08/11/1999EP0934625A1 Numerical voltage controlled oscillator
07/1999
07/29/1999WO1999038252A1 Frequency synthesis circuit tuned by digital words
07/29/1999CA2284842A1 Frequency synthesis circuit tuned by digital words
07/27/1999US5929635 Digital oscillator and supply circuit for an eddy current probe
07/20/1999US5926093 Drive circuit for reactive loads
07/01/1999WO1999033182A2 Circuit including a discrete time oscillator
06/1999
06/16/1999EP0697151B1 Numerically controlled oscillator and digital phase locked loop
06/15/1999US5912927 Multi-channel transmitter having an adaptive antenna array
05/1999
05/26/1999CN1217606A Phase-accumulated sine-wave producer
05/06/1999EP0912921A1 Method of generating signal amplitude responsive to desired function, and converter
04/1999
04/14/1999EP0909035A2 Phase synchronisation device and phase quadrature signal generating apparatus
03/1999
03/25/1999WO1999014848A1 Method and arrangement in a digital oscillator
03/25/1999CA2300138A1 Method and arrangement in a digital oscillator
03/17/1999EP0901713A1 Generator for producing a high-frequency, low-noise signal
03/17/1999CN1211328A Method of generating signal amplitude responsive to desired function, and converter
03/16/1999US5883530 Methods and devices for generating cycled waveforms of nonsingle period
02/1999
02/25/1999WO1999009536A1 Drive circuit for reactive loads
02/23/1999US5874846 Circuit for generating an output clock signal
01/1999
01/12/1999US5859883 Subscriber unit for wireless digital subscriber communication system
01/12/1999US5859570 Frequency synthesizer using divided and frequency converted DDS signal as reference for PLL
01/12/1999US5859501 Radio frequency generating systems and methods for forming pulse plasma using gradually pulsed time-modulated radio frequency power
12/1998
12/23/1998EP0885510A1 Method and apparatus for routing a digitized rf signal to a plurality of paths
12/01/1998US5844388 Drive systems for a brushless motor employing predefined driving profiles stored in a nonvolatile memory
11/1998
11/17/1998US5838956 Clock generating circuit
11/04/1998EP0875987A1 Frequency synthesiser
11/03/1998US5831481 Phase lock loop circuit having a broad loop band and small step frequency
10/1998
10/15/1998WO1998045950A1 Afc-digital tuning through mutual digital synthesis
10/14/1998EP0870359A1 Digital frequency generator
10/13/1998US5822376 High-speed multiplier to multiply a digital signal by a periodic signal
10/13/1998US5822229 Circuit arrangement for frequency multiplication
10/06/1998US5818883 Multi-channel digital transceiver and method
09/1998
09/29/1998US5815504 PDH/SDH signal processor with dual mode clock generator
09/29/1998US5815045 Oscillation apparatus
09/23/1998EP0866560A1 Improved digital clock synthesizer
09/22/1998US5812605 Multi-channel digital transceiver and method
09/15/1998US5808517 PTM signal generator combining outputs of multiple oscillators
09/01/1998US5801654 Apparatus and method for frequency translation in a communication device
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