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Class Information
Number: 331/46
Name: Oscillators > Plural oscillators
Description: Subject matter comprising an electrical system including at least two significant oscillators.










Sub-classes under this class:

Class Number Class Name Patents
331/48 Adjustable frequency 107
331/50 Cascade or tandem connected 62
331/47 Oscillator used to vary amplitude or frequency of another oscillator 137
331/56 Parallel connected 199
331/49 Selectively connected to common output or oscillator substitution 276
331/55 Synchronized, triggered or pulsed 173


Patents under this class:
1 2 3 4 5 6 7

Patent Number Title Of Patent Date Issued
7797118 Real-time clock calibration method and system Sep. 14, 2010
7791423 Two-frequency switchover type crystal oscillator Sep. 7, 2010
7793132 Integrated circuit having frequency dependent noise avoidance Sep. 7, 2010
7777586 Multi-brand electronic apparatus and multi-band signal processing method Aug. 17, 2010
7772933 Multiple band oscillator system Aug. 10, 2010
7764130 Electronic circuitry Jul. 27, 2010
7764131 Precision, temperature stable clock using a frequency-control circuit and dual oscillators Jul. 27, 2010
7756659 Delay stabilization for skew tolerance Jul. 13, 2010
7756487 Local oscillator with non-harmonic ratio between oscillator and RF frequencies using pulse generation and selection Jul. 13, 2010
7746179 Method and apparatus for selecting a frequency generating element Jun. 29, 2010
7741921 Trigger-mode distributed wave oscillator system Jun. 22, 2010
7728684 Crystal reference clock and radio localization receiver Jun. 1, 2010
7724100 Oscillator structure May. 25, 2010
7714671 Wideband nonlinear "channelizer" for rapid processing of static and time-varying signals May. 11, 2010
7710208 Multi-speed ring oscillator May. 4, 2010
7692503 Random number generator based on oscillator noise Apr. 6, 2010
7683725 System for generating a multiple phase clock Mar. 23, 2010
7679457 Oscillating apparatus Mar. 16, 2010
7675371 Electronic circuitry Mar. 9, 2010
7659783 System and method for phase-locked loop (PLL) for high-speed memory interface (HSMI) Feb. 9, 2010
7646254 Radiation hard oscillator and differential circuit design Jan. 12, 2010
7602253 Adaptive bandwidth phase locked loop with feedforward divider Oct. 13, 2009
7598790 Clock synthesis using polyphase numerically controlled oscillator Oct. 6, 2009
7592875 Injection-locked oscillator circuit Sep. 22, 2009
7586382 Methods and systems for temperature related frequency drift compensation Sep. 8, 2009
7586377 Real time clock Sep. 8, 2009
7581132 System and method for configuring a microcontroller clock system Aug. 25, 2009
7567131 Device for ultra wide band frequency generating Jul. 28, 2009
7548120 Frequency switching method Jun. 16, 2009
7545228 Dynamic temperature compensation for a digitally controlled oscillator using dual MEMS resonators Jun. 9, 2009
7535306 Oscillator coupling system May. 19, 2009
7526087 Random number generator Apr. 28, 2009
7519140 Automatic frequency correction PLL circuit Apr. 14, 2009
7511585 Automatic page detector Mar. 31, 2009
7511590 Differential crystal oscillator Mar. 31, 2009
7508280 Frequency adjustment techniques in coupled LC tank circuits Mar. 24, 2009
7504895 Multi-phase interleaved oscillator Mar. 17, 2009
7495516 Method of establishing an oscillator clock signal Feb. 24, 2009
7463096 Dynamic voltage and frequency management in integrated circuits Dec. 9, 2008
7436266 LC quadrature VCO having startup circuit Oct. 14, 2008
7427901 Oscillator array, and synchronization method of the same Sep. 23, 2008
7420429 Source coupled differential complementary colpitts oscillator Sep. 2, 2008
7414490 Dual-band voltage-controlled oscillator using bias switching and output-buffer multiplexing Aug. 19, 2008
7411867 Stable composite clock Aug. 12, 2008
7400209 Oscillator circuit Jul. 15, 2008
7397311 Oscillator coupling to reduce spurious signals in receiver circuits Jul. 8, 2008
7394321 Quadrature VCO system and method Jul. 1, 2008
7375596 Quadrature voltage controlled oscillator May. 20, 2008
7375601 Dual-band oscillator May. 20, 2008
7362188 System-on-a-chip (SoC) clock management--a scalable clock distribution approach Apr. 22, 2008

1 2 3 4 5 6 7










 
 
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