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Class Information
Number: 331/74
Name: Oscillators > Combined with particular output coupling network
Description: Subject matter wherein the oscillator has coupled or connected to its output circuit an additional network, which network may be passive or active, the driven load being coupled or connected to the output of the additional network.










Sub-classes under this class:

Class Number Class Name Patents
331/75 Space discharge or unilaterally conductive device in output network 82
331/77 Wave filter 73


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11

Patent Number Title Of Patent Date Issued
5661439 Method and apparatus for cancelling phase noise Aug. 26, 1997
5650754 Phase-loched loop circuits and voltage controlled oscillator circuits Jul. 22, 1997
5635876 Phase difference and amplitude correction circuit Jun. 3, 1997
5625327 Modified Colpitts oscillator for driving an antenna coil and generating a clock signal Apr. 29, 1997
5614868 Phase locked loop having voltage controlled oscillator utilizing combinational logic Mar. 25, 1997
5606292 Ring oscillator having its output amplified in a comparator Feb. 25, 1997
5606293 Clock generator for microcomputer having reduced start-up time Feb. 25, 1997
5606294 Automatic gain control circuit and method Feb. 25, 1997
5602513 Reversed phase-locked loop Feb. 11, 1997
5602514 Quadrature oscillator having a variable frequency Feb. 11, 1997
5587691 Digital trimming for frequency adjustment Dec. 24, 1996
5576667 Voltage control type oscillator Nov. 19, 1996
5568097 Ultra high availability clock chip Oct. 22, 1996
5568100 Synchronous power down clock oscillator device Oct. 22, 1996
5564100 Frequency modulator having a modulation varactor coupled to output of a VCO Oct. 8, 1996
5550545 Electronic circuit having a linearised and symmetrized response, an oscillator having such a circuit, and a telecontrol transmitter having such an oscillator Aug. 27, 1996
5530407 Digital trimming for frequency adjustment Jun. 25, 1996
5512861 Buffer stage for use with a current controlled oscillator Apr. 30, 1996
5502418 Voltage-controlled oscillating circuit Mar. 26, 1996
5491441 Method and apparatus for generating a clock signal from a continuous oscillator signal including a translator circuit Feb. 13, 1996
5491458 Apparatus for spreading the spectrum of a signal and method therefor Feb. 13, 1996
5488333 Wireless thermally insulated crystal oscillator having power and signals coupled through transceivers Jan. 30, 1996
5485126 Ring oscillator circuit having output with fifty percent duty cycle Jan. 16, 1996
5483204 Clock circuit Jan. 9, 1996
5483205 Low power oscillator Jan. 9, 1996
5481228 Method and apparatus for controlling oscillator duty cycle Jan. 2, 1996
5475344 Multiple interconnected ring oscillator circuit Dec. 12, 1995
5469116 Clock generator circuit with low current frequency divider Nov. 21, 1995
5467060 Voltage controlled oscillator having a current mirror circuit as current source Nov. 14, 1995
5465076 Programmable delay line programmable delay circuit and digital controlled oscillator Nov. 7, 1995
5457434 Integrated circuit oscillator with high voltage feedback network Oct. 10, 1995
5455542 Symmetrical clock crystal oscillator circuit Oct. 3, 1995
5448191 Frequency synthesizer using noninteger division and phase selection Sep. 5, 1995
5442325 Voltage-controlled oscillator and system with reduced sensitivity to power supply variation Aug. 15, 1995
5406231 Oscillator unit with improved frequency stability Apr. 11, 1995
5399996 Circuit and method for minimizing electromagnetic emissions Mar. 21, 1995
5394114 One nanosecond resolution programmable waveform generator Feb. 28, 1995
5357217 Signals generator having non-overlapping phases and high frequency Oct. 18, 1994
5347232 Phase locked loop clock generator Sep. 13, 1994
5339051 Micro-machined resonator oscillator Aug. 16, 1994
5315166 Substrate voltage generator and method therefor in a semiconductor device having selectively activated internal stepped-down power supply voltages May. 24, 1994
5304859 Substrate voltage generator and method therefor in a semiconductor device having internal stepped-down power supply voltage Apr. 19, 1994
5301365 Bidirectional clocking apparatus with automatic sensing Apr. 5, 1994
5294894 Method of and apparatus for startup of a digital computer system clock Mar. 15, 1994
5291152 Proximity switch having oscillator inductively coupled through pulsed Faraday shield to resonant target Mar. 1, 1994
5289140 Consistent diagnostic test method using microwaves Feb. 22, 1994
5270670 High frequency producing device and oscillator comprising differential amplifiers Dec. 14, 1993
5268656 Programmable clock skew adjustment circuit Dec. 7, 1993
5264809 Oscillator circuit and proximity switch using Nov. 23, 1993
5262735 Ring oscillator having outputs that are selectively combined to produce different frequencies Nov. 16, 1993

1 2 3 4 5 6 7 8 9 10 11










 
 
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