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