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Class Information
Number: 455/208
Name: Telecommunications > Receiver or analog modulated signal frequency converter > Frequency or phase modulation > With synchronized or controlled local oscillator
Description: Subject matter including means whereby the operating frequency of a local oscillator device is maintained in synchronism with a reference frequency, is maintained constant or is varied in accordance with a variation of the frequency of an input signal or means whereby some other operating condition of the local oscillator is controlled.

Sub-classes under this class:

Class Number Class Name Patents
455/209 Plural local oscillators or mixers 254

Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8712356 Apparatus and method for phase synchronization in radio frequency transmitters Apr. 29, 2014
8712357 LO generation with deskewed input oscillator signal Apr. 29, 2014
8671302 Method and apparatus for wireless clock regeneration Mar. 11, 2014
8638174 Digital signal generator Jan. 28, 2014
8630679 Wireless communication unit, baseband module, radio frequency module, wireless terminal and computer program product Jan. 14, 2014
8626102 Radio coexistence using clock rate adaptation Jan. 7, 2014
8570887 Analog bias control for packet communication systems Oct. 29, 2013
8515379 Receiver capable of reducing local oscillation leakage and in-phase/quadrature-phase (I/Q) mismatch and an adjusting method thereof Aug. 20, 2013
8503950 Circuit and method for crest factor reduction Aug. 6, 2013
8498601 Polar receiver using injection-locking technique Jul. 30, 2013
8483731 Systems and methods for base station reference frequency correction and timing correction using transceiver feedback Jul. 9, 2013
8483322 Automatic frequency correction Jul. 9, 2013
8457578 Discrete time receiver Jun. 4, 2013
8442147 Multi-carrier communication apparatus May. 14, 2013
8426342 Method for weed control in lawn Apr. 23, 2013
8416761 Mitigating synchronization loss Apr. 9, 2013
8406707 Systems and methods for implementing a harmonic rejection mixer Mar. 26, 2013
8406795 Methods and apparatus for performing timing synchronization with base stations Mar. 26, 2013
8355752 Using LO shifting to prevent a local transceiver from interfering with an FM radio Jan. 15, 2013
8340656 Systems and methods for synchronizing data transmission over a voice channel of a telephone network Dec. 25, 2012
8340672 Wireless network synchronization of cells and client devices on a network Dec. 25, 2012
8315586 Signal receiving device and signal receiving method using same, and signal supplying unit and signal supplying method using same Nov. 20, 2012
8315214 Method and system for discontinuous reception de-synchronization detection Nov. 20, 2012
8310303 Demodulator and communication apparatus Nov. 13, 2012
8306067 Dual-frequency multiplexer Nov. 6, 2012
8300621 System and method for timing acquisition and carrier frequency offset estimation in wireless communication based on OFDM Oct. 30, 2012
8300622 Systems and methods for tandem free operation signal transmission Oct. 30, 2012
8280330 Crystal-less clock generation for radio frequency receivers Oct. 2, 2012
8280327 Receiver capable of reducing local oscillation leakage and in-phase/quadrature-phase (I/Q) mismatch and an adjusting method thereof Oct. 2, 2012
8259888 Method of processing signal data with corrected clock phase offset Sep. 4, 2012
8250399 Method and apparatus for clock wander compensation Aug. 21, 2012
8218516 Bluetooth coexistence timing synchronization Jul. 10, 2012
8183915 Oscillator, and receiving device and electronic device using the oscillator May. 22, 2012
8165538 Systems and methods for implementing a harmonic rejection mixer Apr. 24, 2012
8165547 Apparatus and method for acquiring synchronization to support multi-frequency in mobile communication terminal Apr. 24, 2012
8135553 Method for clock calibration Mar. 13, 2012
8121570 Method and system for flexible FM tuning Feb. 21, 2012
8077818 Radio receiver Dec. 13, 2011
8055214 Mobile communication system Nov. 8, 2011
8055225 FM receiver Nov. 8, 2011
8045717 Stereo decoder and method for processing pilot signal Oct. 25, 2011
8040178 Oscillator, and receiving device and electronic device using the oscillator Oct. 18, 2011
8041386 Configurable multiple mode RFIC Oct. 18, 2011
8036614 Replica DLL for phase resetting Oct. 11, 2011
8036613 Communication system and method for operating a communication system Oct. 11, 2011
8005442 Wireless network connection system and method using injection locked oscillators Aug. 23, 2011
8000667 System and method for compensating for modulation induced frequency shift during transmission of a radio frequency signal Aug. 16, 2011
7965994 Method and system for an analog zero-IF interface for GSM receivers Jun. 21, 2011
7917113 Method for synchronization in a mobile radio terminal Mar. 29, 2011
7894851 Configurable multiple mode RFIC Feb. 22, 2011

1 2 3 4 5

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