| Patents for H03B 21 - Generation of oscillations by combining unmodulated signals of different frequencies (1,067) |
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| 04/20/2006 | US20060082398 Noise reduction in digital systems |
| 04/19/2006 | CN1252858C A non-radiative dielectric waveguide circuit |
| 04/13/2006 | WO2006039099A1 System and method for introducing dither for reducing spurs in digital-to-time converter direct digital synthesis |
| 04/13/2006 | DE102004015771B4 Anordnung zur Drehmomentmessung von rotierenden Maschinenteilen Arrangement for measuring torque of rotating machinery |
| 04/04/2006 | US7023378 Self-calibrating wideband phase continuous synthesizer and associated methods |
| 04/04/2006 | US7023368 Digital-to-analog signal converting apparatus and method to extend usable spectrum over Nyquist frequency |
| 03/30/2006 | DE102004015022B4 Direktfrequenzsynthesizer für einen Versatzschleifensynthesizer Direct frequency synthesizer for an offset loop synthesizer |
| 03/29/2006 | CN1248411C High-frequency oscillator |
| 03/23/2006 | WO2006030342A1 Device for ultra wide band frequency generating |
| 03/14/2006 | US7012453 Phase continuous synthesizer with phase coasting and associated methods |
| 02/16/2006 | US20060035599 Frequency synthesizer and multi-band radio apparatus using said frequency synthesizer |
| 02/16/2006 | US20060035598 Frequency synthesizer and multi-band radio apparatus using said frequency synthesizer |
| 01/31/2006 | US6993356 Frequency generating system for a mobile radio dual-band transceiver |
| 01/31/2006 | US6992531 Dual-oscillator signal synthesizer having high frequency offset stage |
| 01/31/2006 | US6992510 Multiplier circuit with offset compensation and quadricorrelator |
| 01/18/2006 | EP1616171A1 Improvements to rupture event sensors |
| 01/18/2006 | CN1723610A Regenerative divider for up and down conversion of radio frequency (RF) signals |
| 01/18/2006 | CN1723608A Multiple band local oscillator frequency generation circuit |
| 01/18/2006 | CN1722610A Frequency transforming method and receiver |
| 01/11/2006 | EP1613948A1 Crystal oscillator |
| 01/10/2006 | US6985701 Frequency synthesizer and multi-band radio apparatus using said frequency synthesizer |
| 01/05/2006 | US20060002501 Ultra-fast hopping frequency synthesizer for multi-band transmission standards |
| 12/27/2005 | US6980353 Frequency synthesiser |
| 12/22/2005 | US20050280476 Filter control apparatus and filter system |
| 12/21/2005 | EP1425845B1 Harmonic mixer |
| 12/20/2005 | US6977556 Rational frequency synthesizers |
| 12/01/2005 | US20050264325 System and method for open-loop synthesis of output clock signals having a selected phase relative to an input clock signal |
| 11/30/2005 | EP1449272A4 Temperature compensated oscillator |
| 11/29/2005 | US6970687 Mixer |
| 11/22/2005 | US6967508 Compact frequency doubler/multiplier circuitry |
| 11/17/2005 | US20050254595 Method and apparatus for estimating a sample delay between a transmission signal and a feedback signal in a mobile communication system, and a base station transmitter using the same |
| 11/15/2005 | US6965759 Frequency synthesizer capable of obtaining signals in three frequency bands |
| 11/02/2005 | EP1590886A1 Regenerative divider for up and down conversion of radio frequency (rf) signals |
| 11/01/2005 | US6960943 Suppressed micro phonic phase stable synthesizer |
| 10/27/2005 | DE102004015771A1 Anordnung zur Drehmomentmessung von rotierenden Maschinenteilen Arrangement for measuring torque of rotating machinery |
| 10/20/2005 | WO2005098383A1 Arrangement for measuring the torque of rotating machine parts |
| 10/12/2005 | EP1393436B1 Circuit arrangement for translating an oscillator frequency into a carrier frequency |
| 09/29/2005 | US20050212566 Compensating for leakage currents in loop filter capacitors in PLLs and the like |
| 09/21/2005 | EP1417750B1 Mixer circuit with image frequency rejection which is intended, in particular, for an rf receiver with zero or low intermediate frequency |
| 09/08/2005 | US20050194999 Compact frequency doubler/multiplier circuitry |
| 09/07/2005 | CN1218490C Clock signal generator |
| 08/31/2005 | CN1217518C Complex circuit safety frequency mixing system |
| 08/25/2005 | DE102004005503A1 Verfahren zur Frequenzumsetzung und Empfänger Method for frequency conversion and receiver |
| 08/23/2005 | US6933791 Frequency synthesizing circuit having a frequency multiplier for an output PLL reference signal |
| 08/09/2005 | US6928091 Opto-electronic oscillator including a tunable electro-optic filter |
| 08/04/2005 | WO2005071841A1 Oscillator array and its synchronization method |
| 08/04/2005 | US20050170807 Method for frequency conversion and receiver |
| 08/04/2005 | US20050168248 [frequency synthesizing and back-end processing circuit and method thereof] |
| 08/04/2005 | CA2554230A1 Oscillator array and its synchronization method |
| 07/28/2005 | US20050163206 Arbitrary waveform synthesizer using a free-running ring oscillator |
| 07/27/2005 | EP0988691B1 Frequency synthesis circuit tuned by digital words |
| 07/26/2005 | US6922089 Digital frequency synthesizing circuit and system thereof using interpolation and linear feedback shift register (LFSR) |
| 07/21/2005 | US20050156634 Phase continuous synthesizer with phase coasting and associated methods |
| 07/20/2005 | CN1643774A Circuit arrangement for frequency conversion and mobile radio device with the circuit arrangement |
| 07/14/2005 | DE19928998B4 Elektronische Schaltungsanordnung zur Erzeugung einer Sendefrequenz Electronic circuit arrangement for generating a transmit frequency |
| 07/14/2005 | CA2547688A1 Wideband dds synthesizer |
| 07/06/2005 | EP1550204A2 Multiple band local oscillator frequency generation circuit |
| 07/05/2005 | US6914935 Fractional N synthesizer with reduced fractionalization spurs |
| 07/05/2005 | US6914463 Frequency output generation through alternating between selected frequencies |
| 06/30/2005 | US20050143041 Frequency generation apparatus and method for data transmission |
| 06/22/2005 | EP1488507A4 An arbitrary waveform synthesizer using a free-running ring oscillator |
| 06/16/2005 | DE10351416A1 High-frequency (HF) signal generation device for producing HF sinusoidal signals has frequencies lying very close to a defined reference frequency |
| 06/15/2005 | CN1628294A Arbitary wave form synthesizer using free-running ring Oscillator |
| 06/02/2005 | US20050116742 Non-fixed oscillatory wave signal generating method and apparatus |
| 05/26/2005 | WO2003007470A8 Harmonic mixer |
| 05/12/2005 | US20050102337 Frequency locked digitally tuned oscillator synthesizer |
| 05/12/2005 | US20050101269 Residual carrier and side band processing system and method |
| 05/11/2005 | CN1201211C Device for generating singal having substantially temperature-independent frequency |
| 04/28/2005 | US20050090221 Circuit arrangement for frequency conversion and mobile radio device with the circuit arrangement |
| 04/21/2005 | US20050083142 Frequency synthesizer with on-chip inductor |
| 04/21/2005 | US20050083085 Method and apparatus for fractional RF signal synthesis |
| 04/19/2005 | US6882234 Frequency adjustable oscillator and methods of operation |
| 04/13/2005 | CN2692917Y Multiple circuit safety digital mixer system |
| 04/07/2005 | US20050073367 Dual-oscillator signal synthesizer having high frequency offset stage |
| 03/15/2005 | US6867625 Method and apparatus for high frequency digital carrier synthesis from plural intermediate carrier waveforms |
| 03/10/2005 | US20050054310 Heterodyne system |
| 03/02/2005 | EP1395841B1 Low noise microwave synthesizer employing high frequency combs for tuning drift cancel loop |
| 03/02/2005 | EP1219019B1 Local oscillator apparatus for radio frequency communication systems |
| 02/22/2005 | US6859073 Fast VCO calibration for frequency synthesizers |
| 02/17/2005 | US20050035793 Digital frequency synthesizing circuit and system thereof using interpolation and linear feedback shift register ( LFSR) |
| 02/09/2005 | CN1577443A Current driver and display device |
| 02/03/2005 | US20050024100 Current driver and display device |
| 02/01/2005 | US6850749 Local oscillator architecture to reduce transmitter pulling effect and minimize unwanted sideband |
| 02/01/2005 | US6850121 TDMA transmit frequency generator suppressing frequency jumps caused by feedback |
| 01/26/2005 | EP1500205A1 Frequency synthesizers for supporting voice communication and wireless networking standards |
| 01/26/2005 | CN1572054A 谐波混合器 Harmonic mixer |
| 01/20/2005 | US20050012528 Synthesizer |
| 01/18/2005 | US6844758 Frequency synthesizer |
| 01/13/2005 | US20050007203 Frequency synthesizing circuit |
| 01/11/2005 | US6842077 Voltage controlled oscillator for use in a phase locked loop |
| 12/30/2004 | US20040264977 Method and apparatus for waveform generation |
| 12/30/2004 | US20040263268 Temperature compensated oscillator |
| 12/22/2004 | EP1488507A2 An arbitrary waveform synthesizer using a free-running ring oscillator |
| 12/08/2004 | EP1483827A1 Circuit arrangement for frequency conversion and mobile radio device with the circuit arrangement |
| 12/07/2004 | US6828863 Multi-band frequency synthesizer for mobile terminals |
| 12/01/2004 | CN1552057A Method and circuit for creating a sub-harmonic of a periodic signal |
| 11/23/2004 | US6822488 Frequency synthesizer |
| 11/09/2004 | US6816021 Multiple band local oscillator frequency generation circuit |
| 11/04/2004 | WO2004095012A1 Crystal oscillator |
| 11/04/2004 | WO2004095011A1 Improvements to rupture event sensors |