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Class Information
Number: 331/167
Name: Oscillators > L-c type oscillators
Description: Oscillators of the active element type wherein the frequency of oscillation is determined by an inductance-capacitance circuit of the lumped element type and which oscillators are not provided for in any of the preceding subclasses.










Sub-classes under this class:

Class Number Class Name Patents
331/169 Anode to cathode coupled or connected resonant circuit 2
331/170 Anode to grid coupled or connected resonant circuit 2
331/171 Grid to cathode coupled or connected resonant circuit 2
331/168 Plural tubes 11


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

Patent Number Title Of Patent Date Issued
8686805 Oscillator, a frequency synthesizer and a network node for use in a telecommunication network Apr. 1, 2014
8674772 Oscillating signal generator utilized in phase-locked loop and method for controlling the oscillating signal generator Mar. 18, 2014
8665033 Varactorless tunable oscillator Mar. 4, 2014
8665034 Varactor tuning control using redundant numbering Mar. 4, 2014
8648664 Mutual inductance circuits Feb. 11, 2014
8638176 Slew rate edge enhancer Jan. 28, 2014
8633776 System and method for effectively performing a clock signal distribution procedure Jan. 21, 2014
8633777 Methods and apparatus for inductors with integrated passive and active elements Jan. 21, 2014
8629732 Voltage-controlled oscillators and related systems Jan. 14, 2014
8624683 Semiconductor device Jan. 7, 2014
8618891 Method and apparatus of a resonant oscillator separately driving two independent functions Dec. 31, 2013
8614637 Semiconductor device having oscillators, counters and comparator Dec. 24, 2013
8604889 Tunable LC oscillator with common mode voltage adjustment Dec. 10, 2013
8593232 Multi-band frequency oscillating device Nov. 26, 2013
8587384 Semiconductor integrated circuit device and oscillation frequency calibration method Nov. 19, 2013
8577322 Signal mixer having a single-ended input and a differential output Nov. 5, 2013
8576015 Signal generator Nov. 5, 2013
8547183 Voltage controlled oscillator Oct. 1, 2013
8531250 Configuring a tunable inductor across multiple layers of an integrated circuit Sep. 10, 2013
8525604 Oscillator arrangement Sep. 3, 2013
8502614 Variable inductor, and oscillator and communication system using the same Aug. 6, 2013
8483645 Dual carrier amplifier circuits and methods Jul. 9, 2013
8446228 Oscillator circuit May. 21, 2013
8432229 PVT consistent PLL incorporating multiple LCVCOs Apr. 30, 2013
8416028 Voltage controlled oscillator and electronic component Apr. 9, 2013
8410792 Resonator arrangement and method for analyzing a sample using the resonator arrangement Apr. 2, 2013
8390386 Variable inductor Mar. 5, 2013
8368477 Receiver including an LCD tank filter and method thereof Feb. 5, 2013
8350634 VCO with independently controllable parameters Jan. 8, 2013
8351867 Oscillator, frequency generating circuit and wireless communication system using the oscillator Jan. 8, 2013
8344811 Dual-band voltage-controlled oscillator arrangement Jan. 1, 2013
8339211 Voltage-controlled oscillator Dec. 25, 2012
8339209 Method for selecting natural frequency in resonant clock distribution networks with no inductor overhead Dec. 25, 2012
8330549 Oscillator circuit with voltage booster Dec. 11, 2012
8310316 Oscillator circuit Nov. 13, 2012
8289093 Voltage controlled oscillator Oct. 16, 2012
8289094 Voltage controlled oscillator (VCO) circuit with integrated compensation of thermally caused frequency drift Oct. 16, 2012
8283989 Voltage controlled oscillator Oct. 9, 2012
8269566 Tunable resonant circuit in an integrated circuit Sep. 18, 2012
8264296 Voltage controlled oscillator Sep. 11, 2012
8264293 Oscillator Sep. 11, 2012
8264290 Dual positive-feedbacks voltage controlled oscillator Sep. 11, 2012
8264288 Quadrature voltage controlled oscillator including transmission line Sep. 11, 2012
8258887 Delay-coupled LCVCO Sep. 4, 2012
8253501 Device with two differential oscillators with pulsed power supply coupled to and in quadrature-phase with each other Aug. 28, 2012
8222962 High-resolution digitally controlled oscillator and method thereof Jul. 17, 2012
8217727 Slew rate edge enhancer Jul. 10, 2012
8217729 Integrated circuits including an LC tank circuit and operating methods thereof Jul. 10, 2012
8212627 Wideband digitally-controlled oscillator (DCO) and digital broadcasting receiver having the same Jul. 3, 2012
8188797 Adjustable electrical components formed from arrays of differential circuit elements May. 29, 2012

1 2 3 4 5 6 7 8 9










 
 
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