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Class Information
Number: 455/196.1
Name: Telecommunications > Receiver or analog modulated signal frequency converter > Signal selection based on frequency (e.g., tuning) > Including variation of local oscillator frequency
Description: Subject matter which includes a variable frequency source of unmodulated oscillation.

Sub-classes under this class:

Class Number Class Name Patents
455/197.1 By simultaneous control with signal selection 54

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8675078 Test technique for set-top boxes Mar. 18, 2014
8630679 Wireless communication unit, baseband module, radio frequency module, wireless terminal and computer program product Jan. 14, 2014
8606194 Receiver 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
8515361 Frequency correction of a programmable frequency oscillator by propagation delay compensation Aug. 20, 2013
8509722 Frequency drift estimation for low cost outdoor unit frequency conversions and system diagnostics Aug. 13, 2013
8476982 Reference oscillator management for wireless devices having position determination functionality Jul. 2, 2013
8472905 Method and system for tuning an antenna using injection Jun. 25, 2013
8358985 Radio wave receiving apparatus Jan. 22, 2013
8315587 Mechanical tuning of a radio Nov. 20, 2012
8306067 Dual-frequency multiplexer Nov. 6, 2012
8275336 Apparatus and method for digitally controlling capacitance Sep. 25, 2012
8249533 Rapidly adjustable local oscillation module and applications thereof Aug. 21, 2012
8238840 Communication apparatus Aug. 7, 2012
8208881 Radio frequency receiver and radio frequency transmitter Jun. 26, 2012
8185067 Modulation method and apparatus May. 22, 2012
8019310 Local oscillator buffer and mixer having adjustable size Sep. 13, 2011
7929929 Method and apparatus for spur reduction in a frequency synthesizer Apr. 19, 2011
7925232 Reduced cost mobile satellite antenna system using a plurality of satellite transponders Apr. 12, 2011
7904036 Modulation method and apparatus Mar. 8, 2011
7894778 LO generator to reject unwanted sideband Feb. 22, 2011
7877070 Method and system for tuning an antenna using injection Jan. 25, 2011
7805123 RF transceiver using hopping frequency synthesizer Sep. 28, 2010
7801505 Multipulse/multitone mixing receiver Sep. 21, 2010
7796964 Intermediate-frequency type radio signal receiver Sep. 14, 2010
RE41583 Frequency-stabilized transceiver configuration Aug. 24, 2010
7756496 Oscillation controlling apparatus, recording medium having program recorded thereon, and channel selecting apparatus Jul. 13, 2010
7702052 Radio-frequency receiver and integrated circuit employed for the receiver Apr. 20, 2010
7639821 System and method for improved detection of AM signals Dec. 29, 2009
7634242 Systems and methods for filter center frequency location Dec. 15, 2009
7605838 Broadcast signal receiving apparatus and method of filtering noise signals Oct. 20, 2009
7580390 Reducing handover frequency error Aug. 25, 2009
7577417 Mobile terminal Aug. 18, 2009
7567786 High-dynamic-range ultra wide band transceiver Jul. 28, 2009
7558548 Method and apparatus for receiving and/or down converting high frequency signals in multi mode/ multi band applications, using mixer and sampler Jul. 7, 2009
7536164 Controlling the frequency of an oscillator May. 19, 2009
7418248 Signal reception device, signal transmission device, radio communication system, and signal reception method Aug. 26, 2008
7406301 Modulation-demodulation apparatus and wireless communication apparatus Jul. 29, 2008
7379722 Frequency allocation using a single VCO May. 27, 2008
7343144 Frequency synthesizer using PLL architecture for wireless frequency allocation Mar. 11, 2008
7263339 Tuner comprising a voltage converter Aug. 28, 2007
7251298 Receiver architecture eliminating static and dynamic DC offset errors Jul. 31, 2007
7242259 Active backscatter transponder, communication system comprising the same and method for transmitting data by way of such an active backscatter transponder Jul. 10, 2007
7203475 Multiple rate local oscillation generator and applications thereof Apr. 10, 2007
7155183 Method and apparatus for adjusting reference oscillator frequency in a mobile wireless device Dec. 26, 2006
7123892 Architecture for an AM/FM digital intermediate frequency radio Oct. 17, 2006
7046960 Relay apparatus May. 16, 2006
7043211 Universal modulator May. 9, 2006
7019790 Integrated tuner circuit and television tuner using an integrated tuner circuit Mar. 28, 2006

1 2 3

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