Patents
Sitemap › H03 - Basic electronic circuitry › H03B - Generation of oscillations, directly or by frequency-changing, by circuits employing active elements which operate in a non-switching manner; Generation of noise by such circuits › H03B 1 - Details
Patents for H03B 1 - Details (4,410)
02/1992
02/11/1992CA1295696C Dual gate tunable oscillator
01/1992
01/21/1992US5083098 Tunable VCO frequency sensitivity
01/15/1992EP0466388A2 Voltage controlled balanced crystal oscillator circuit
01/15/1992EP0465845A2 Microwave window
01/14/1992US5081431 Digital temperature-compensated oscillator
01/14/1992US5081430 Overtone crystal oscillator having resonance amplifier in feedback path
12/1991
12/27/1991EP0462747A1 Tunable oscillator with noise degeneration
12/27/1991EP0462304A1 Arrangement for the amplitude regulation of an oscillator
12/24/1991US5075643 Frequency modulator
12/21/1991CA2045014A1 Voltage controlled oscillator
12/11/1991EP0460958A1 Method for reducing phase noise in a microwave oscillator
11/1991
11/26/1991US5068627 Narrow band microstrip isolator
11/06/1991EP0455298A1 Electrically controllable oscillator circuit and electrically controllable filter arrangement comprising said circuit
10/1991
10/31/1991DE4013181A1 HF oscillator for microwave transmitter - has signals from two identical active oscillator circuits combined
10/22/1991US5059927 Microwave oscillator with reduced phase noise
10/22/1991CA1291226C Microwave diode oscillator
10/09/1991EP0450750A2 Lockproof low level oscillator using digital components
10/08/1991US5056144 Fast switching drive circuit for a ferri-resonant oscillator
10/03/1991CA2035645A1 Lockproof low level oscillator using digital components
10/02/1991DE4009729A1 Converter for digital radio receiver system - uses phase locked loop controlled by DC voltage to provide reference mixer signal
10/01/1991US5053773 Doppler compensated airborne weather radar system
09/1991
09/03/1991US5045815 Amplitude and phase balanced voltage-controlled oscillator
08/1991
08/14/1991EP0441532A2 A frequency linearization circuit for a microwave VCO in ridged waveguide
08/13/1991US5039956 Frequency synthesizer for frequency agile modem
07/1991
07/30/1991US5036299 Method and apparatus for reducing microwave oscillator output noise
07/24/1991EP0437976A2 Voltage-controlled oscillator mounted on laminated printed circuit board
07/17/1991EP0437313A1 Shield case structure for an electronic device
07/16/1991US5032800 Tunable oscillator with noise degeneration
07/09/1991US5030926 Voltage controlled balanced crystal oscillator circuit
07/02/1991US5028886 Swept frequency slope correction system for synthesized sweeper
06/1991
06/26/1991EP0434109A1 Voltage-controlled oscillator
06/18/1991US5025231 Temperature-controlled crystal oscillator circuit
06/12/1991EP0431887A2 Variable capacitance capacitor array
06/11/1991US5023571 Digitally-synchronized sweep signal source
06/05/1991EP0429896A2 Tunable resonance amplifier or oscillator
05/1991
05/28/1991US5019791 Millimeter wave oscillator with flicker (1/f) noise suppression
05/22/1991EP0428222A2 Harmonic crystal oscillator
05/14/1991US5016202 Interpolated swept parameter system for synthesized sweeper
05/07/1991US5014021 Frequency linearization circuit for a microwave VCO in ridged waveguide
04/1991
04/23/1991US5010308 Crystal oscillator with offset and hysteresis
04/16/1991US5008638 Installation structure of a microwave oscillation circuit unit
04/03/1991EP0420495A2 Shield case structure for an oscillator
04/03/1991EP0420082A2 Digitally synchronized sweep signal source
04/02/1991US5004989 Oscillator for controlling a mixer stage in a tuner
04/02/1991US5004988 Quartz crystal oscillator with temperature-compensated frequency characteristics
04/02/1991CA1282466C Variable capacitance circuit
03/1991
03/12/1991US4999589 Low phase noise voltage controlled oscillator
03/12/1991US4999587 Waveguide oscillator tunable through integrated varactor diode and coupling probe
02/1991
02/27/1991EP0414260A2 Frequency synthesizer for implementing generator of highly pure signals and circuit devices, such as VCO, PLL and SG, used therein
02/19/1991US4994763 Universal voltage-controlled multivibrator
02/13/1991CN1011649B Low distortion oscillator
02/05/1991US4990866 Voltage controlled microwave oscillator using a varactor as inductance
02/05/1991US4990865 Transistor microwave oscillator having adjustable zone of potential instability
01/1991
01/29/1991US4988957 Electronically-tuned thin-film resonator/filter controlled oscillator
01/22/1991US4987389 Lockproof low level oscillator using digital components
01/19/1991WO1991001590A1 Low voltage vco temperature compensation
01/19/1991CA2064086A1 Low voltage vco temperature compensation
01/15/1991CA1279111C High frequency oscillator with discrete frequency determining elements
12/1990
12/27/1990EP0404404A2 Crystal oscillator with broad tuning capability
12/18/1990US4978930 Low voltage VCO temperature compensation
12/18/1990CA1278050C Integrated microwave oscillator
12/12/1990EP0401919A1 Temperature controlled crystal oscillator circuit
11/1990
11/27/1990WO1990014709A1 Electronically controlled oscillator
11/27/1990US4973920 Controllable quadrature oscillator
11/27/1990CA2057073A1 Electronically controlled oscillator
11/15/1990DE3917510C1 Digital valve corrector for start and/or stop voltages of wobbulator - modulates output frequency with frequency raster generating equidistant frequency marks
11/14/1990EP0396576A1 Microwave diode tuning circuit.
10/1990
10/31/1990DE3914359A1 Monolithically integrated HF VCO - consists of inverting amplifier stage, followed by non-inverting one, with latter feedback to former
10/18/1990WO1990012450A1 Oscillator
10/16/1990US4963831 Self adjusting frequency demodulating integrated circuit
09/1990
09/25/1990US4959625 Wide bond balanced output frequency modulator using a video signal as a modulation signal
09/19/1990EP0387746A1 High frequency transistor oscillator
09/19/1990EP0387745A1 High frequency VCO
09/11/1990US4956617 Mechanical adjustment arrangement for dielectric resonator oscillator
09/04/1990US4954792 Multi-grid electron tube high frequency power oscillator
08/1990
08/21/1990US4951006 Antenna coupled millimeter wave oscillator
07/1990
07/25/1990EP0379258A2 Tunable Waveguide oscillators
07/10/1990US4940953 Millimeter wave microstrip IMPATT diode oscillator
07/04/1990EP0376718A1 A semiconductor device
07/03/1990US4939481 Low phase noise voltage controlled oscillator
06/1990
06/27/1990EP0375497A1 Device for the direct modulation or demodulation of ultra-high frequencies
06/27/1990EP0375034A2 Oscillator for supplying a mixer stage in a tuner
06/20/1990CA2005755A1 Direct microwave modulation and demodulation device
06/06/1990EP0371549A1 Controllable quadrature oscillator
05/1990
05/30/1990EP0370169A2 Signal generator utilizing a combined phase locked and frequency locked loop
05/15/1990US4926142 Oscillator having a dielectric resonator, and electronic frequency tuning using a varactor, in particular in the 22 GHz range
05/09/1990EP0366762A1 An improved oscillator
05/08/1990US4924195 Crystal oscillator with broad tuning capability
05/08/1990CA1268827A1 Tuned oscillator
05/01/1990US4922211 Microwave oscillator in which the dielectric resonator is hermetically sealed
04/1990
04/17/1990CA1267941A1 Wide range electronic oscillator
03/1990
03/27/1990CA1267197A1 Very high frequency oscillator with gyromagnetic resonators
03/15/1990DE3829722A1 Circuit for generating alternating voltages with an improved conversion efficiency
03/07/1990EP0357121A1 High-frequency power oscillator
02/1990
02/01/1990DE3825238A1 Voltage-controlled oscillator
01/1990
01/31/1990EP0352695A2 Quartz crystal oscillator with temperature-compensated frequency characteristics
01/17/1990EP0351153A2 Frequency modulator
01/02/1990US4891610 UHF-feedback oscillator
12/1989
12/26/1989US4890301 Arrangement for compensating errors in a quadrature modulator
12/26/1989US4890071 Signal generator utilizing a combined phase locked and frequency locked loop
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