H03B 21 - Generation of oscillations by combining unmodulated signals of different frequencies

Patents for H03B 21 - Generation of oscillations by combining unmodulated signals of different frequencies (1,067)
09/2012
09/20/2012	US20120235709 Unified frequency synthesizer for direct conversion receiver or transmitter
09/13/2012	US20120229220 Temperature compensated oscillator including MEMS resonator for frequency control
09/13/2012	US20120229171 Frequency synthesizer and frequency synthesizing method for converting frequency's spurious tones into noise
09/11/2012	US8264284 Atomic frequency acquisition device based on self-mixing interference
08/2012
08/30/2012	WO2012116374A2 Semiconductor device having on-chip voltage regulator
08/30/2012	US20120218005 Semiconductor Device Having On-Chip Voltage Regulator
08/21/2012	US8248113 Method and apparatus for accurate clock synthesis
06/2012
06/26/2012	US8207793 Mixing waveforms
06/07/2012	US20120139587 Frequency synthesiser
06/07/2012	US20120139586 Frequency synthesizer and frequency synthesizing method
05/2012
05/08/2012	US8174328 Dual-band wideband local oscillation signal generator
05/08/2012	US8174293 Time to digital converter
05/03/2012	US20120105111 Transmitter including polar modulation circuit
05/03/2012	US20120105110 Signal level adjusting device and high-frequency apparatus
05/01/2012	US8169266 Mixer circuits and methods
04/2012
04/05/2012	US20120081155 Dual-Mode Voltage Controlled Oscillator, Frequency Synthesizer and Wireless Receiving Device
04/03/2012	US8149022 Digital delay line based frequency synthesizer
02/2012
02/29/2012	EP1588483B1 Device and method for carrying out frequency synthesis
02/21/2012	US8120433 Multi-output oscillator using single oscillator
02/21/2012	US8120389 Digital to frequency synthesis using flying-adder with dithered command input
02/14/2012	US8115519 Phase accumulator generating reference phase for phase coherent direct digital synthesis outputs
01/2012
01/05/2012	US20120001660 Software-defined radio
01/03/2012	US8090755 Phase accumulation
12/2011
12/29/2011	US20110319036 Apparatus and Method for Digitally Controlling Capacitance
12/15/2011	US20110304361 Time-to-digital converter with calibration
12/01/2011	US20110291706 Elimination of fractional n boundary spurs in a signal synthesizer
11/2011
11/30/2011	EP2391000A1 Digital Signal Generator
11/22/2011	US8063669 Frequency synthesizer having a plurality of independent output tones
10/2011
10/27/2011	WO2011131237A1 A direct analog frequency synthesizer
10/27/2011	US20110260757 Method and system for generating a pulse signal of the ultra wide band type
10/20/2011	WO2011128671A1 Frequency synthesizer with reduced noise and spurious spectral components
10/19/2011	EP2378665A1 Frequency synthesizer with reduced noise and spurious spectral components
10/18/2011	US8040971 High performance mixed signal circuit
10/17/2011	DE202011004587U1 Lautsprechersystem als Abhörmonitor Speaker system as the monitor screen
10/04/2011	US8031019 Integrated voltage-controlled oscillator circuits
10/04/2011	US8031010 Ruggedized chip scale atomic clock
10/04/2011	CA2381094C Rational frequency synthesizers
09/2011
09/28/2011	EP1488507B1 An arbitrary waveform synthesizer using a free-running ring oscillator
09/06/2011	US8013641 Frequency synthesizer including a digital lock detector
09/06/2011	US8013640 Programmable ultrasound transmit beamformer integrated circuit and method
08/2011
08/18/2011	WO2011100387A1 Rom-based direct digital synthesizer with pipeline delay circuit
08/18/2011	US20110199128 ROM-Based Direct Digital Synthesizer with Pipeline Delay Circuit
08/18/2011	US20110199127 Phase Accumulator Generating Reference Phase for Phase Coherent Direct Digital Synthesis Outputs
08/16/2011	US8001410 Efficient clocking scheme for ultra high-speed systems
08/16/2011	US7999578 Waveform generation device, waveform generation method, and computer readable medium
08/04/2011	WO2011094715A1 Methods and systems for generating millimeter-wave oscillations
08/02/2011	US7990186 Signal conditioning circuit with a shared oscillator
07/2011
07/28/2011	US20110183639 Sampling circuit and receiver using same
07/26/2011	US7986192 Harmonic rejection mixer and harmonic rejection mixing method
07/19/2011	US7982546 Quadrature local oscillator generation for direct conversion radio transceiver
07/14/2011	US20110169533 Frequency synthesizer
06/2011
06/28/2011	US7969205 Peak power reduction method
06/23/2011	US20110151804 Semiconductor device, wireless communication device and method for generating a synthesized frequency signal
06/16/2011	US20110140743 Digital Frequency Generator
05/2011
05/31/2011	US7952396 AWG having arbitrary factor interpolator and fixed frequency DAC sampling clock
05/31/2011	US7952395 Universal CMOS current-mode analog function synthesizer
05/26/2011	US20110121867 High-speed compression architecture for memory
05/26/2011	US20110121866 Frequency difference detection apparatus and method, frequency discrimination apparatus and method, and frequency synthesis apparatus and method
05/24/2011	US7948274 Frequency generation circuitry and method
05/18/2011	CN101447764B Method and device for synthesizing and transmitting waveform signal
05/18/2011	CN101183852B Digitally controlled oscillators and all-digital phase-locked loops
05/17/2011	CA2456658C A mixer circuit with image frequency rejection, in particular for an rf receiver with zero or low intermediate frequency
05/12/2011	US20110109349 Waveform Generation from an Input Data Stream
04/2011
04/28/2011	US20110095791 Low-power oscillator
04/19/2011	US7928808 Selectable local oscillator
04/19/2011	US7928807 Frequency synthesizer architecture for multi-band ultra-wideband system
04/19/2011	US7928780 Phase-locked-loop circuit
04/19/2011	US7928773 Multiple frequency synchronized phase clock generator
04/14/2011	US20110084732 Universal cmos current-mode analog function synthesizer
04/05/2011	US7920933 Digital mixing system with double arrangement for fail safe
03/2011
03/31/2011	US20110074469 Frequency Generation Circuitry And Method
03/29/2011	US7917798 Superconducting digital phase rotator
03/22/2011	US7912564 Digital mixing system with double arrangement for fail safe
03/22/2011	US7911242 Signal generating apparatus, test apparatus and circuit device
03/22/2011	US7911241 Frequency synthesizer circuit comprising a phase locked loop
03/02/2011	EP0875094B1 Method and apparatus for selecting from multiple mixers
03/02/2011	CN101119159B Infrared signal processing circuit having carrier detection circuit
03/01/2011	US7898345 Method of frequency synthesis for fast switching
02/2011
02/24/2011	US20110043258 Direct digital frequency synthesizer using hybrid digital to analog converter and synthesizing method thereof
02/17/2011	US20110037502 Digital high-frequency generator circuit
02/17/2011	US20110037501 High agility frequency synthesizer phase-locked loop
02/15/2011	US7888973 Matrix time-to-digital conversion frequency synthesizer
02/10/2011	US20110032005 Frequency synthesizer
02/02/2011	EP2280330A1 Frequency synthesiser for a fill level measuring device and fill level measuring device
01/2011
01/13/2011	US20110006849 Harmonic rejection mixer and harmonic rejection mixing method
01/13/2011	US20110006811 Frequency synthesizer for a level measuring device and a level measuring device
12/2010
12/30/2010	US20100327916 Frequency synthesizer noise reduction
12/23/2010	US20100323643 Frequency synthesis
12/23/2010	US20100321068 Frequency Synthesizer
12/09/2010	US20100308871 Delay chain circuit
12/07/2010	USRE41981 Arbitrary waveform synthesizer to generate one or more arbitrary waveforms
12/07/2010	US7847602 Digitally controlled frequency generator
11/2010
11/30/2010	US7844650 Pulse output direct digital synthesis circuit
11/17/2010	CN101019307B Device for ultra wide band frequency generating
11/16/2010	US7834713 Synthesized local oscillator and method of operation thereof
11/11/2010	US20100283513 Rf sensing circuit with a voltage-controlled oscillator
11/02/2010	US7825702 Synthesizer module
10/2010
10/28/2010	US20100271072 Digital lock detector and frequency synthesizer using the same
10/06/2010	EP2237412A1 Digitally controled frequency generator
10/05/2010	US7808283 Synchronous frequency synthesizer

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