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Class Information
Number: 455/264
Name: Telecommunications > Receiver or analog modulated signal frequency converter > Local control of receiver operation > Local oscillator frequency control > Automatic > Utilizing particular local oscillator control > Voltage control of oscillator
Description: Subject matter having an oscillator the frequency of which can be varied by a changing voltage.










Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8687645 Wireless communications device providing temperature-compensated clock correction features and related methods Apr. 1, 2014
8571506 Systems and methods for sharing an oscillator between receivers Oct. 29, 2013
8565704 Method and apparatus for compensating an oscillator in a location-enabled wireless device Oct. 22, 2013
8494456 Transceiver Jul. 23, 2013
8483332 Oscillating apparatus, receiving apparatus, and oscillation control method Jul. 9, 2013
8463224 Arbitrary multiband overlay mixer apparatus and method for bandwidth multiplication Jun. 11, 2013
8433255 System and method for reducing temperature-dependent and process-dependent frequency variation of a crystal oscillator circuit Apr. 30, 2013
8412120 Phase-locked circuit and radio communicating device Apr. 2, 2013
8362809 Dual-mode voltage controlled oscillator, frequency synthesizer and wireless receiving device Jan. 29, 2013
8364100 Method and system for a transmitter loft cancellation scheme that maintains IQ balance Jan. 29, 2013
8306484 Direct-conversion transmitter with resistance to local oscillator pulling effects Nov. 6, 2012
8275336 Apparatus and method for digitally controlling capacitance Sep. 25, 2012
8275325 Transceiver Sep. 25, 2012
8233898 Wireless communications device providing temperature-compensated clock correction features and related methods Jul. 31, 2012
8145177 Receiving apparatus Mar. 27, 2012
8140039 Quadrature-input quadrature-output divider and phase locked loop frequency synthesizer or single side band mixer Mar. 20, 2012
8095102 Phase-lock loop Jan. 10, 2012
8005447 Method and apparatus for providing a dual-loop phase lock loop Aug. 23, 2011
7894778 LO generator to reject unwanted sideband Feb. 22, 2011
7890055 Touch field compound field detector personal ID Feb. 15, 2011
7868704 Broadband integrated television tuner Jan. 11, 2011
7865158 Method and apparatus for automatically correcting receiver oscillator frequency Jan. 4, 2011
7792510 Multi-band frequency synthesizer Sep. 7, 2010
7747236 Method and apparatus for estimating local oscillator frequency for GPS receivers Jun. 29, 2010
7747237 High agility frequency synthesizer phase-locked loop Jun. 29, 2010
7734259 Method and system for a transmitter loft cancellation scheme that maintains IQ balance Jun. 8, 2010
7724862 Phase locked loop apparatus with adjustable phase shift May. 25, 2010
RE41183 System and method for WLAN signal strength determination Mar. 30, 2010
7610023 Voltage controlled oscillator band switching system Oct. 27, 2009
7587180 FM modulator Sep. 8, 2009
7574186 Self-powered radio integrated circuit with embedded antenna Aug. 11, 2009
7555273 Bandpass filter with carrier frequency reduction Jun. 30, 2009
7538621 Broadband integrated tuner May. 26, 2009
7512390 System and method for tuning a frequency generator using an LC oscillator Mar. 31, 2009
7508897 PLL circuit and high-frequency receiving device Mar. 24, 2009
7492850 Phase locked loop apparatus with adjustable phase shift Feb. 17, 2009
7457599 Frequency transceiver for controlling intermediate frequency Nov. 25, 2008
7397312 Spectrum analyzer and method for correcting frequency errors Jul. 8, 2008
7386286 High frequency low noise phase-frequency detector and phase noise reduction method and apparatus Jun. 10, 2008
7383033 Differential and quadrature harmonic VCO and methods therefor Jun. 3, 2008
7313380 Variable resolution A/D converter Dec. 25, 2007
7310506 Differential voltage control oscillator including radio-frequency switching circuits Dec. 18, 2007
7295824 Frequency multiplier pre-stage for fractional-N phase-locked loops Nov. 13, 2007
7289005 Polar modulator and a method for modulation of a signal Oct. 30, 2007
7266357 Reduced local oscillator feedthrough quadrature image reject mixer Sep. 4, 2007
7263341 Audio demodulating circuit and television broadcast receiver Aug. 28, 2007
7242916 Communication semiconductor integrated circuit device and wireless communication system Jul. 10, 2007
7239857 Method and apparatus for compensating an oscillator in a location-enabled wireless device Jul. 3, 2007
7221920 Voltage controlled oscillator, frequency synthesizer and communication apparatus May. 22, 2007
7184732 PLL frequency synthesizer Feb. 27, 2007

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