Patents for H03B 19 - Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source (1,662) |
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06/06/1995 | US5422584 Variable phase sine wave generator for active phased arrays |
05/31/1995 | EP0655840A2 Delay locked loop based clock synthesizer using a dynamically adjustable number of delay elements therein |
05/23/1995 | US5418500 High-frequency oscillator circuit |
05/04/1995 | DE4336655A1 Schaltungsanordnung zur Frequenzmultiplikation Circuit arrangement for frequency multiplication |
04/11/1995 | US5406237 Wideband frequency multiplier having a silicon carbide varactor for use in high power microwave applications |
03/09/1995 | CA2110478A1 Microwave frequency doubler circuit |
03/07/1995 | US5396659 Direct-coupled FET frequency multiplier and mixer circuit |
02/21/1995 | US5392014 Frequency multiplier |
02/14/1995 | US5389886 Quadrature signals frequency doubler |
01/10/1995 | CA2038585C Signal detecting circuit for detecting a signal specified in a designated frequency |
12/14/1994 | EP0629039A1 Transient discriminate harmonics generator |
12/13/1994 | US5373260 Plural saw oscillators producing combined high frequency output |
11/29/1994 | US5369373 Comb data generation |
11/15/1994 | US5365182 Method and apparatus for low power clock generation for high speed applications |
10/26/1994 | EP0621682A1 Frequency divider device |
10/21/1994 | CA2121411A1 Frequency dividing device |
09/14/1994 | EP0505391B1 Comb generator, device and process for the calibration of radiated-emission test sites |
09/01/1994 | DE4306074A1 Circuit arrangement for the digital generation of an output pulse sequence from an input pulse sequence which occurs at a low frequency compared with the former |
08/24/1994 | EP0612189A2 A frequency multiplier |
08/23/1994 | US5341111 Microwave oscillator circuit |
08/18/1994 | DE4320087C1 Control generator with phase-locked loop |
06/28/1994 | US5325129 Millimeter wavelength energy detector pixel having intermediate frequency amplification |
06/09/1994 | DE4341179A1 Surface acoustic wave oscillator - has resonator with good reflectors and interdigital converters on piezoelectric substrate, oscillators and frequency multiplier |
06/07/1994 | US5319267 Frequency doubling and mixing circuit |
05/18/1994 | EP0597617A1 Push-push ring resonator oscillator |
04/26/1994 | US5307029 Method and apparatus for generating multiple frequency tones using a digital frequency divider |
04/19/1994 | US5304938 Method and apparatus for providing a lower frequency signal with reference to a higher frequency signal |
04/12/1994 | US5303417 Mixer for direct conversion receiver |
04/12/1994 | US5303259 Frequency-hopped electronic signal transmitter |
04/12/1994 | US5302918 Subharmonic optically injection locked oscillator |
02/23/1994 | EP0583804A1 A phase locked loop circuit |
02/23/1994 | EP0583802A1 A signal generator suitable for use in a frequency synthesizer |
02/23/1994 | EP0583801A1 A phase locked loop circuit including a frequency detection function |
02/23/1994 | EP0583800A1 A voltage controlled oscillator |
02/22/1994 | US5289139 Push-push ring resonator oscillator |
01/26/1994 | EP0580357A1 Varactor diode frequency multiplier |
01/11/1994 | US5278444 Planar varactor frequency multiplier devices with blocking barrier |
01/11/1994 | US5278427 Quantum collector hot-electron transistor |
01/04/1994 | US5276904 Antenna system |
12/29/1993 | EP0576149A2 High-voltage generating circuit |
11/16/1993 | US5263197 Dual port oscillator for two-stage direct conversion receiver |
11/09/1993 | US5260608 Phase-locked loop and resulting frequency multiplier |
10/19/1993 | US5254955 Advanced phase locked loop circuit |
10/05/1993 | US5250910 Push-push oscillator having in-phase and anti-phase output combining circuits |
09/28/1993 | US5248945 Power amplifiers |
09/22/1993 | EP0561560A1 Frequency divider with variable capacitance |
09/19/1993 | CA2091753A1 Frequency divider with variable capacitance |
08/10/1993 | US5235406 Object displacement detection |
07/13/1993 | US5228067 Semiconductor integrated circuit |
06/30/1993 | EP0548542A1 Radiofrequency frequency multiplier comprising an automatic level control cicuit |
06/08/1993 | US5218313 Frequency synthesizer for implementing generator of highly pure signals and circuit devices, such as VCO, PLL and SG used therein |
04/21/1993 | EP0537750A1 Quadrature modulation and demodulation circuit |
03/16/1993 | US5194820 Frequency doubling device |
03/09/1993 | US5192875 Analog frequency divider utilizing two amplifiers and a LC resonant circuit |
03/03/1993 | EP0529620A1 Semiconductor integrated circuit comprising an oscillator and a selectable frequency divider |
02/17/1993 | EP0527470A1 Push-push oscillator |
01/20/1993 | EP0523938A1 A radio receiver |
01/12/1993 | CA1312658C Tuned oscillator |
01/07/1993 | EP0521653A2 Gain control amplifier |
01/07/1993 | EP0521652A2 Frequency multiplier |
01/05/1993 | US5177453 Gain control amplifier |
11/10/1992 | US5163169 Frequency divider having the power supply connected to the gaas substrate |
11/10/1992 | US5163074 Dynamic frequency divider circuit with capacitor in loop to achieve fifty percent duty cycle output |
11/03/1992 | US5160902 Voltage controlled oscillator with controlled capacitance ratio in positive feedback loop to broaden bandwidth |
11/03/1992 | US5160894 Digital frequency synthesizer and method of frequency synthesis |
10/27/1992 | US5159631 Audio scrambling system using in-band carrier |
09/30/1992 | EP0505391A1 Comb generator, device and process for the calibration of radiated-emission test sites. |
09/29/1992 | US5151661 Direct digital FM waveform generator for radar systems |
09/10/1992 | DE4135851C1 Frequency divider for GHz range - has amplifying FET synchronised to input frequency and producing wave of selected divided frequency |
09/09/1992 | EP0501991A1 Frequency synthesizer |
09/02/1992 | EP0500889A1 Power amplifiers |
08/12/1992 | EP0498221A1 Frequency doubling and mixing circuit |
08/11/1992 | US5138284 Push-push oscillator using a transmission line resonator and differential output |
07/21/1992 | US5132632 Frequency multiplier |
07/14/1992 | US5130763 Integrated semiconductor device with an insulated-gate field effect transistor having a negative transconductance zone |
06/16/1992 | US5122763 Frequency snythesizer for implementing generator of highly pure signals and circuit devices, such as vcq, bll and sg, used therein |
06/11/1992 | WO1992010026A1 Amplitude and phase balanced voltage-controlled oscillator |
06/09/1992 | US5121069 Low frequency sinewave generator |
05/27/1992 | EP0487386A1 Frequency doubler |
05/20/1992 | EP0486132A2 Frequency division network having low phase noise |
05/13/1992 | EP0485050A1 A low phase noise frequency multiplier |
05/05/1992 | US5111161 Pll with lock detector for detecting a specified signal in a plurality of input signals |
04/28/1992 | CA1299769C Sequential-quenching resonant-tunneling transistor |
04/09/1992 | DE4031535A1 Selective fundamental wave switching circuit of HF signal - has double path diode circuit with push-pull effect for fundamental doubling |
03/19/1992 | WO1992004768A1 Power amplifiers |
03/18/1992 | EP0474916A2 Frequency multiplier with analog function generator with linear electronic components |
03/17/1992 | CA1297544C Method of and apparatus for digitally setting a control frequency |
03/10/1992 | US5095279 Variable frequency sine wave carrier signal generator |
02/25/1992 | US5091699 Frequency division network having low phase noise |
02/18/1992 | US5089717 Intergrated semiconductor device including a frequency divider for microwave applications |
01/08/1992 | EP0465314A1 Amplifier with dual band output |
01/07/1992 | US5079524 Microwave oscillation circuit |
01/02/1992 | EP0463561A1 Signal processing method and apparatus, and a system such as a displacement detecting device using the same |
12/31/1991 | US5077546 Low phase noise frequency multiplier |
12/31/1991 | CA1293775C Harmonically pumped monolithic planar doped barrier mixer |
09/25/1991 | EP0448048A2 A signal detecting circuit for detecting a signal specified in a designated frequency |
09/19/1991 | WO1991009317A3 Comb generator, device and process for calibrating measurement sections |
09/11/1991 | EP0445979A2 Fractional frequency divider for providing a symmetrical output signal |
09/03/1991 | US5045815 Amplitude and phase balanced voltage-controlled oscillator |
08/14/1991 | EP0441684A1 Phase lock circuit and resulting frequency multiplier |