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)
12/2007
12/29/2007CA2573707A1 Phase-coherent signal generator
12/11/2007US7308240 Numerical control oscillator, digital frequency converter and radio frequency unit
12/11/2007US7307481 Minimum synchronization frequency discriminator
11/2007
11/29/2007DE10351116B4 Frequenzgenerator Frequency generator
11/27/2007US7302237 Wideband signal generators, measurement devices, methods of signal generation, and methods of signal analysis
11/13/2007US7295076 Synchronously coupled oscillator
10/2007
10/16/2007US7282970 Device and method for generating one-shot bipolar waveform
09/2007
09/26/2007CN101043199A Voltage controlled oscillator with automatic amplitude control
09/18/2007US7271669 Voltage controlled oscillator and phase locked loop circuit having the same
07/2007
07/24/2007US7248658 Method and circuit for deriving a second clock signal from a first clock signal
07/19/2007US20070164793 Apparatus for generating clock pulses using a direct digital synthesizer
05/2007
05/17/2007US20070109027 Free-running numerically-controlled oscillator using complex multiplication with compensation for amplitude variation due to cumulative round-off errors
05/16/2007EP0885510B1 Method and apparatus for routing a digitized rf signal to a plurality of paths
05/09/2007CN1960182A Direct digital frequency synthesizer of shaped frequency noise
05/01/2007US7211926 Temperature compensated oscillator including MEMS resonator for frequency control
04/2007
04/26/2007WO2006098857A3 Temperature compensated oscillator including mems resonator for frequency control
04/24/2007US7209937 Method and apparatus for generation of arbitrary mono-cycle waveforms
04/10/2007US7202712 Multiphase resonant pulse generators
03/2007
03/28/2007CN1937400A Direct digital synthesizer, direct digital synthesizer for transmission and detection, and mri apparatus
03/27/2007US7196658 Waveform generation method, waveform generation program, waveform generation circuit and radar device
03/22/2007US20070063754 Frequency generator
03/22/2007DE4226669B4 Wellenformgenerator Waveform generator
03/20/2007US7193479 Local oscillator circuit
03/15/2007US20070057706 Multiphase resonant pulse generators
02/2007
02/14/2007CN1914579A A free-running numerically-controlled oscillator using complex multiplication with compensation for amplitude variation due to cumulative round-off errors
02/08/2007US20070030080 Voltage controlled digital analog oscillator and frequency synthesizer using the same
01/2007
01/24/2007CN1902814A 频率发生器 Frequency Generator
01/16/2007US7164323 Phase synchronous multiple LC tank oscillator
01/09/2007CA2338556C System and method employing a reduced nco lookup table
01/03/2007EP1739841A1 Waveform generation method, radar device, and oscillator for radar device
12/2006
12/28/2006WO2006137034A1 Wideband rf pseudo-sine signal generator.
12/13/2006CN1879305A Waveform generation method, radar device, and oscillator for radar device
12/12/2006US7148763 Integrated circuit including processor and crystal oscillator emulator
11/2006
11/21/2006US7139329 Receiver in a radio communication system
11/15/2006EP1012803B1 Drive circuit for reactive loads
11/02/2006US20060244497 Device and method for generating one-shot bipolar waveform
11/02/2006DE102005018820A1 Light emission method, involves exciting sound waves` charge carriers in semiconductor layer structures in higher energy intraband conditions and relaxing carriers again in energy sound conditions to emit electromagnetic radiations
11/01/2006CN1856932A Voltage controlled digital analog oscillator and frequency synthesizer using the same
11/01/2006CN1855694A Method of generating test tone signal and test-tone-signal generating circuit
10/2006
10/31/2006US7130327 Digital frequency synthesis
10/25/2006CN1852023A Adding-up apparatus and digital circuit unit of its direct digit frequency synthesizing apparatus
10/18/2006EP1711879A1 A free-running numerically-controlled oscillator using complex multiplication with compensation for amplitude variation due to cumulative round-off errors
10/12/2006WO2006106945A1 Microwave generating apparatus and microwave generating method
10/03/2006US7116956 Power oscillator for control of waveshape and amplitude
09/2006
09/20/2006CN1835389A Method able to eliminate frequency error of digital controlled oscillator and phase accumulator
09/13/2006CN1831541A Multichannel synchronous sinusoidal signal generator
09/12/2006US7106142 Ring-type voltage oscillator with improved duty cycle
09/06/2006EP1698047A1 Multiplier of an electric signal, using a local oscillator signal, and method used by said multiplier
08/2006
08/24/2006US20060186967 Sine wave shaper with very low total harmonic distortion
07/2006
07/26/2006EP1683264A1 Frequency generator
07/26/2006CN2800642Y Programmable inversion type sine wave producer
07/19/2006CN1805271A High order íãí¸ noise shaping interpolator for direct digital frequency synthesis
07/06/2006US20060145773 Ring-type voltage oscillator with improved duty cycle
07/04/2006US7072925 Generator structures and methods that provide low-harmonic curvilinear waveforms
07/04/2006US7072264 VCO with phase modulated output
06/2006
06/20/2006US7065474 Frequency rectification system: apparatus and method
06/14/2006CN1787362A Low power consumption non-ROM searching list phase amplitude converter
06/07/2006CN1783702A Clock generating circuit and a display device having the same
05/2006
05/30/2006US7053676 Circuit arrangement for generating a signal having a specific waveform with an adjustable voltage level
05/16/2006US7046053 Total harmonic distortion standard
05/10/2006EP0974196B1 Afc-digital tuning through mutual digital synthesis
05/09/2006US7042301 Crystal oscillator emulator
05/04/2006US20060091966 Synchronously coupled oscillator
04/2006
04/26/2006CN1254006C Voltage controlled oscillator circuit and its PLL circuit
04/19/2006CN1762092A Sine wave shaper with very low total harmonic distortion
04/12/2006EP1645027A1 Method and apparatus for generation of arbitrary mono-cycle waveforms
04/12/2006CN2772126Y Digital frequency synthesizer
04/04/2006CA2522325A1 Waveform control circuit
03/2006
03/29/2006EP1639702A1 Self-oscillating power circuit
03/28/2006US7019567 Sine wave generation circuit
03/08/2006CN1744435A Frequency rectification system, apparatus and method
03/01/2006CN1741399A Radio communication equipment and radio communication control method, and sampling device used therein
02/2006
02/28/2006US7005930 Synchronously coupled oscillator
01/2006
01/25/2006EP1619790A1 Direct digital frequency synthesis enabling spur elimination
01/18/2006EP1617563A1 Integrated circuit including crystal oscillator emulator
01/18/2006CN1721965A Integrated circuit including processor and crystal oscillator emulator
01/04/2006CN2750567Y An improved signal generator
01/04/2006CN1716760A Numerically controlled oscillator and method of operation
12/2005
12/28/2005EP1609237A1 Sine wave shaper with very low total harmonic distortion
12/15/2005WO2005119231A1 Characteristic measuring apparatus and characteristic measuring method
12/14/2005EP1604454A1 Method of generating sinusoidal signal
12/14/2005CN1707939A Trigonometric wave generation circuit using series expansion
12/07/2005EP1456940A4 Low noise oscillator
11/2005
11/23/2005CN1700590A Wideband signal generators, measurement devices, methods of signal generation, and methods of signal analysis
11/22/2005CA2240473C Digital frequency generator
11/17/2005US20050256656 Frequency rectification system: apparatus and method
11/16/2005EP1596207A2 Frequency rectification system: apparatus and method
11/10/2005US20050251709 Waveform generating device and method, and decoder
10/2005
10/26/2005EP1214790B1 Direct digital frequency synthesis enabling spur elimination
10/20/2005US20050231292 Jitter generator
10/19/2005CN1685611A Method and arrangement for generating cyclic pulses
10/12/2005CN1681196A Annular voltage controlled oscillator
09/2005
09/29/2005US20050215221 Local oscillator circuit
09/07/2005CN1666407A Waveform generating device and method, and decoder
09/01/2005US20050189969 Total harmonic distortion standard
08/2005
08/24/2005EP1565985A1 Method and arrangement for generating cyclic pulses
08/11/2005WO2005073829A1 A free-running numerically-controlled oscillator using complex multiplication with compensation for amplitude variation due to cumulative round-off errors
08/10/2005CN1214534C AFC-digital tuning circuit through related DDS
08/09/2005US6928091 Opto-electronic oscillator including a tunable electro-optic filter
08/03/2005EP1560335A2 Wideband signal generators, measurement devices, methods of signal generation, and methods of signal analysis.
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