Patents for H03B 23 - Generation of oscillations periodically swept over a predetermined frequency range (246)
02/2015
02/18/2015EP2838201A1 Circuits for generating sweep frequency signal
01/2015
01/28/2015CN104320087A 一种高速数字扫频方法 A high-speed digital sweep method
06/2014
06/25/2014CN102395899B 采用直接数字合成器的系统 Direct digital synthesizer system
06/13/2014DE202014004370U1 Schaltkreise zum Generieren eines Wobbelsignals Circuitry for generating a wobble signal
05/2014
05/06/2014US8717110 Frequency-jittering apparatuses, frequency-jittering methods and power management devices
06/2013
06/26/2013CN103178782A Frequency sweeping signal generator
05/2013
05/14/2013US8441217 Oscillator circuit with frequency sweep function
04/2013
04/16/2013US8421431 Frequency jitter controller for power converter
03/2013
03/27/2013CN202841055U High-speed frequency sweeping signal generator
02/2013
02/28/2013WO2013027314A1 Frequency sweep signal generator, frequency component analyzer, wireless device, and frequency sweep signal generating method
05/2012
05/23/2012CN102468805A 一种扫频信号发生器及扫频信号的产生方法 A method of generating a signal generator and sweep sweep
03/2012
03/28/2012CN102395899A System employing a direct digital synthesiser
08/2011
08/03/2011EP2350684A1 System employing a direct digital synthesiser
11/2010
11/10/2010EP1329019B1 Segmented spectrum clock generator apparatus and method for using same
09/2010
09/07/2010US7791426 Frequency modulator
06/2010
06/03/2010WO2010061170A1 System employing a direct digital synthesiser
06/03/2010CA2744567A1 System employing a direct digital synthesiser
12/2009
12/09/2009CN101601183A Low noise generator for frequency swept signals
12/02/2009EP2127066A2 Low noise generator for frequency swept signals
08/2009
08/12/2009CN201288989Y Stroboscopic lamp for controlling signal lamp
07/2009
07/09/2009US20090174440 Frequency-hopping pulse-width modulator for switching regulators
04/2009
04/21/2009US7521986 Switch element driver circuit and semiconductor device
02/2009
02/12/2009DE202008010435U1 Referenz Generator Reference generator
11/2008
11/12/2008EP1990916A2 Frequency modulator.
10/2008
10/02/2008WO2008093077A3 Low noise generator for frequency swept signals
10/01/2008CN201123345Y Machine of automatically sweeping frequency for expelling insects
08/2008
08/07/2008WO2008093077A2 Low noise generator for frequency swept signals
08/07/2008CA2676128A1 Low noise signal generation system
07/2008
07/02/2008CN100399698C Segmental spectrum clock generator apparatus and mehtod for using same
04/2008
04/29/2008US7365608 Digital frequency synthesiser and a method for producing a frequency sweep
04/24/2008WO2008049122A2 High frequency nanotube oscillator
04/08/2008US7355484 Oscillator and radar apparatus using the same
03/2008
03/13/2008DE19850447B4 Nicht-linearer Dispersions-Impulsgenerator Non-linear dispersion pulse generator
12/2007
12/12/2007EP1864413A1 Method for damping a high-frequency radiation of a clocked system
02/2007
02/22/2007US20070040616 Oscillator and radar apparatus using the same
12/2006
12/26/2006US7155190 DDS-PLL method for frequency sweep
09/2006
09/28/2006WO2006100147A1 Method for damping a high-frequency radiation of a clocked system
06/2006
06/21/2006EP1672381A1 FMCW radarsystem for automatic control system components of a technical installation
05/2006
05/03/2006EP1138113B1 Device for correcting non-linearities of voltage-controlled oscillators in a fmcw radar system
03/2006
03/09/2006DE19918026B4 Oszillatorschaltung mit verminderter Störstrahlung Oscillator circuit with reduced interference
08/2005
08/25/2005US20050186929 DDS-PLL method for frequency sweep
06/2005
06/14/2005US6906560 Phase-continuous frequency synthesizer
05/2005
05/19/2005WO2005046047A1 Oscillator and radar apparatus using the same
04/2005
04/20/2005EP1142112B1 A receiver and a variable frequency signal generating circuit for the receiver
09/2004
09/15/2004EP1329019A4 Segmented spectrum clock generator apparatus and method for using same
01/2004
01/28/2004CN1471756A Segmental spectrum clock generator apparatus and mehtod for using same
12/2003
12/24/2003CN2595076Y Frequency scanning circuits for R-C oscillation chips
11/2003
11/20/2003DE19939036C2 Anordnung zum Wobbeln (Sweepen) eines Frequenzsynthesesizers Arrangement of sweeping (sweep) of Frequenzsynthesesizers
08/2003
08/27/2003EP1099298B1 Synthesising a sine wave
07/2003
07/23/2003EP1329019A1 Segmented spectrum clock generator apparatus and method for using same
06/2003
06/03/2003US6573766 Synthesizing a sine wave
04/2003
04/30/2003DE4245020C2 Swept RF and microwave frequency synthesised source
04/08/2003US6545634 Method for detecting and correcting non-linearities in radio-frequency, voltage controlled oscillators
01/2003
01/22/2003CN1099720C Nonradiation dielectric transmission line apparatus and instrument for measuring characteristics of circuit board
01/07/2003US6504441 Voltage controlled oscillator with selectable frequency range
01/07/2003US6504354 Signal analysis apparatus having YTO yttrium-iron garnet tuned oscillator
09/2002
09/19/2002US20020131541 Spread spectrum modulation technique for frequency synthesizers
06/2002
06/11/2002US6404834 Segmented spectrum clock generator apparatus and method for using same
05/2002
05/28/2002US6396314 Arrangement for the warbling (sweeping) of a frequency synthesizer
04/2002
04/10/2002EP1195888A2 High range resolution radar through non-uniform sampling
03/2002
03/28/2002WO2002025806A1 Segmented spectrum clock generator apparatus and method for using same
02/2002
02/26/2002US6351485 Spread spectrum modulation technique for frequency synthesizers
11/2001
11/13/2001US6317074 High range resolution radar through non-uniform sampling
11/13/2001US6316943 Signal generator
10/2001
10/10/2001EP1142112A1 A receiver and a variable frequency signal generating circuit for the receiver
10/04/2001EP1138113A1 Device for correcting non-linearities of voltage-controlled oscillators in a fmcw radar system
08/2001
08/30/2001WO2001063742A1 Swept frequency phase locked loop
05/2001
05/25/2001WO2001036989A1 Signal analysing apparatus having yto
05/16/2001EP1099298A1 Synthesising a sine wave
03/2001
03/13/2001US6201447 Phase synchronization circuit with units for setting sweep frequency and control voltage
02/2001
02/22/2001DE19939036A1 Frequency sweeping device for frequency synthesiser of spectrum analyser, has clock frequency of accumulator control by circuit programmed for desired variation with time
11/2000
11/14/2000US6147560 Method and device relating to supervision and control of an oscillator signal
09/2000
09/05/2000US6114987 Dual-loop linearizer for FM-CW radar
08/2000
08/15/2000US6104250 Method and an apparatus for controlling an oscillator for generating a linear frequency sweep by use of a phase-locked loop
07/2000
07/18/2000US6091356 Chirp source with rolling frequency lock for generating linear frequency chirps
07/06/2000DE19857040A1 Verfahren zur Detekton und Korrektur von Nichtlinearitäten hochfrequenter, spannungsgesteuerter Oszillatoren Method for Detekton and correction of non-linearities of high frequency, voltage controlled oscillators
06/2000
06/29/2000WO2000038320A1 A receiver and a variable frequency signal generating circuit for the receiver
06/21/2000EP0873588B1 Method and device for modulating the frequency of a high-frequency signal
06/15/2000WO2000035076A1 Device for correcting non-linearities of voltage-controlled oscillators in a fmcw radar system
06/08/2000DE19855367A1 Fractional frequency synthesizer for precision frequency modulated continuous wave radar system, has memory holding frequency divider division factors generated by microprocessor
04/2000
04/11/2000US6049257 Method and arrangement for frequency modulation of a high-frequency signal
02/2000
02/22/2000US6028425 Signal generator
02/22/2000US6028388 Piezoelectric transformer driver
12/1999
12/29/1999WO1999067877A1 Synthesising a sine wave
12/29/1999CA2334975A1 Synthesising a sine wave
07/1999
07/06/1999USH1797 Linear frequency modulation apparatus and technique
07/06/1999US5920245 Nonradiative dielectric line apparatus including a specifically oriented circuit board
04/1999
04/21/1999EP0909483A1 A method of and an arrangement for controlling an oscillator
12/1998
12/22/1998US5852418 Notched-spectrum swept-frequency generator and method therefor
10/1998
10/28/1998EP0873588A1 Method and device for modulating the frequency of a high-frequency signal
07/1998
07/29/1998EP0855792A1 Method and device relating to supervision and control of an oscillator signal
07/07/1998US5777574 High resolution imaging radar linear frequency modulation bandwidth multiplier
06/1998
06/23/1998US5770989 Nonradiative dielectric line apparatus and instrument for measuring characteristics of a circuit board
06/23/1998CA2104215C Radio receiver for forming a baseband signal of time-varying frequencies
05/1998
05/12/1998US5751747 Linear swept frequency generator
02/1998
02/17/1998US5719512 Digital oscillating circuit for multiple systems-ready television receivers
01/1998
01/20/1998US5710524 Clock synthesizer for low EMI applications
01/08/1998WO1998000920A1 A method of and an arrangement for controlling an oscillator
12/1997
12/02/1997US5694132 Voltage feedback linearizer
08/1997
08/19/1997US5659587 Spread spectrum phase-locked loop clock generator with VCO driven by a symmetrical voltage ramp signal
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