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Class Information
Number: 455/316
Name: Telecommunications > Receiver or analog modulated signal frequency converter > Frequency modifying or conversion > Plural separate successive conversions > With plural separate local oscillators > With frequency stabilization for at least one local oscillator
Description: Subject matter including means whereby the output frequency of at least one of the plurality of separate local oscillator means is stabilized.










Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8606209 Apparatus and methods for efficient implementation of tuners Dec. 10, 2013
8588712 Modulation method and apparatus Nov. 19, 2013
8532236 Quadrature signal generation in radio-frequency apparatus and associated methods Sep. 10, 2013
8489054 Millimeter wave oscillator Jul. 16, 2013
8483628 Multiple-phase frequency translated filter Jul. 9, 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
8385855 Dual conversion transmitter with single local oscillator Feb. 26, 2013
8374552 Concurrent testing of multiple communication devices Feb. 12, 2013
8185067 Modulation method and apparatus May. 22, 2012
8145155 Passive mixer and high Q RF filter using a passive mixer Mar. 27, 2012
8140039 Quadrature-input quadrature-output divider and phase locked loop frequency synthesizer or single side band mixer Mar. 20, 2012
8140043 Simplified high frequency tuner and tuning method Mar. 20, 2012
8027656 Method and system for a distributed transceiver for high frequency applications Sep. 27, 2011
8019313 Method and system for distributed transceivers based on notch filters and passive mixers Sep. 13, 2011
8014477 Receiver employing selectable A/D sample clock frequency Sep. 6, 2011
7912429 LO 2LO upconverter for an in-phase/quadrature-phase (I/Q) modulator Mar. 22, 2011
7903762 Multi-band TV tuner and method thereof Mar. 8, 2011
7904036 Modulation method and apparatus Mar. 8, 2011
7792510 Multi-band frequency synthesizer Sep. 7, 2010
7787852 RF receiver with harmonic blocking in LO Aug. 31, 2010
RE41583 Frequency-stabilized transceiver configuration Aug. 24, 2010
7756503 High frequency module Jul. 13, 2010
7734272 Local oscillator apparatus and method Jun. 8, 2010
7610032 System and method for frequency translation with harmonic suppression using mixer stages Oct. 27, 2009
7577215 Angle demodulation apparatus, local oscillation apparatus, angle demodulation method, local oscillation signal generating method, recording medium and computer data signal Aug. 18, 2009
7546102 Dual band frequency synthesizer Jun. 9, 2009
7542752 Method and device for adjacent channels operation Jun. 2, 2009
7536163 Apparatus and method generating multi RF tone signals in UWB communication system May. 19, 2009
7502605 Sub-millimeter wavelength camera Mar. 10, 2009
7437133 Radio frequency tuner front end and tuner Oct. 14, 2008
7295821 Multiple base station automatic frequency control architecture in wireless communication system Nov. 13, 2007
7289782 Linearized fractional-N synthesizer having a gated offset Oct. 30, 2007
7239846 Up-conversion modulation loop for multi-mode mobile communication Jul. 3, 2007
7228118 Method of calibrating PLL frequency synthesizers to precise frequencies with low tolerance crystals in their master reference oscillators Jun. 5, 2007
7190943 System and method for frequency translation with harmonic suppression using mixer stages Mar. 13, 2007
7184733 High frequency receiving device, integrated circuit used for the same, and TV receiver using them Feb. 27, 2007
7164899 System and method for frequency translation with harmonic suppression using mixer stages Jan. 16, 2007
7155194 Mixer used in direct conversion transceiver and related method Dec. 26, 2006
7116963 Simplified high frequency tuner and tuning method Oct. 3, 2006
7103343 Receiver, in particular for mobile radio Sep. 5, 2006
7088981 Apparatus for reducing flicker noise in a mixer circuit Aug. 8, 2006
7076001 System and method for an in-service decision-directed signal to noise ratio estimator Jul. 11, 2006
7058360 Method and system for stabilizing the performance variation of a radio frequency device Jun. 6, 2006
7024170 Frequency conversion apparatus Apr. 4, 2006
7013119 Radio communication apparatus and its reception timing estimating method Mar. 14, 2006
7003273 Temperature compensating circuit, electronic apparatus and radio unit having temperature compensating function Feb. 21, 2006
6985708 Linearized fractional-N synthesizer having a gated offset Jan. 10, 2006
6947499 Angle demodulation apparatus, local oscillation apparatus, angle demodulation method, local oscillation signal generating method, recording medium and computer data signal Sep. 20, 2005
6900700 Communication semiconductor integrated circuit and radio communication system May. 31, 2005

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