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Class Information
Number: 455/216
Name: Telecommunications > Receiver or analog modulated signal frequency converter > Frequency or phase modulation > With particular frequency division or multiplication
Description: Subject matter including the combination of a frequency or phase-modulation type receiver, which may be broadly claimed, with a specific frequency dividing or multiplying means.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8606204 Coherent transceiver and related method of operation Dec. 10, 2013
8583170 Multi-band aggregated spectrum receiver employing frequency source reuse Nov. 12, 2013
8554159 Direct FM/PM modulation Oct. 8, 2013
8521112 Quadrature mixer Aug. 27, 2013
8498347 Transmission apparatus and reception apparatus Jul. 30, 2013
8498351 Transmission apparatus and reception apparatus Jul. 30, 2013
8351367 Signaling of unused resources Jan. 8, 2013
8300621 System and method for timing acquisition and carrier frequency offset estimation in wireless communication based on OFDM Oct. 30, 2012
8289837 Methods and apparatuses for multimode Bluetooth and WLAN operation concurrently Oct. 16, 2012
8280331 System and method for tuning FM synthesizer Oct. 2, 2012
8249535 Radio receivers Aug. 21, 2012
8243629 Methods and apparatus for selecting between an ad-hoc conference mode and an infrastructure supported conference mode Aug. 14, 2012
8237870 Receiver system for multiple bandwidth television channels Aug. 7, 2012
8228950 Method and device for handling ranging signals in a wireless communications network Jul. 24, 2012
8116708 Wireless receiver Feb. 14, 2012
8077659 Method and apparatus for locating mobile multimedia multicast system capable wireless devices Dec. 13, 2011
8055224 Wireless receiver Nov. 8, 2011
8036303 Transmitter apparatus Oct. 11, 2011
7983637 Amplifier, radio transmitting apparatus, and radio receiving apparatus Jul. 19, 2011
7929929 Method and apparatus for spur reduction in a frequency synthesizer Apr. 19, 2011
7826811 Phase modulation apparatus and wireless communication apparatus Nov. 2, 2010
7664475 Multi-band wireless transceiver and method of controlling the same Feb. 16, 2010
7529533 Configurable homodyne/heterodyne radio receiver and RFID reader employing same May. 5, 2009
7430247 Carrier frequency detection for N-ary phase modulated signal Sep. 30, 2008
7379723 Local oscillator and mixer for transceiver May. 27, 2008
7356318 Quadrature subharmonic mixer Apr. 8, 2008
7340233 Integrated circuit and methods for third sub harmonic up conversion and down conversion of signals Mar. 4, 2008
7177609 Chopper-direct-conversion (CDC) radio architecture Feb. 13, 2007
7164896 Method for driving a receiver stage and respective apparatus Jan. 16, 2007
7103115 Optimum training sequences for wireless systems Sep. 5, 2006
7085549 Dynamic power sharing zero intermediate frequency (ZIF) mixer and method of forming same Aug. 1, 2006
7023937 Receiver window design for multicarrier communication systems Apr. 4, 2006
7024171 Fractional-N frequency synthesizer with cascaded sigma-delta converters Apr. 4, 2006
6993091 Correction of DC-offset of I/Q modulator Jan. 31, 2006
6973304 Multimode service radio communication method and apparatus Dec. 6, 2005
6845083 Multi-standard transmitter system and method for a wireless communication system Jan. 18, 2005
6788922 Radio FM receiver having a frequency 2-divider and a frequency 3-divider for alternatively dividing a VCO signal for down-converting a received radio signal Sep. 7, 2004
6766178 RF architecture for cellular multi-band telephones Jul. 20, 2004
6731176 Synthesizer with lock detector, lock algorithm, extended range VCO, and a simplified dual modulus divider May. 4, 2004
6564045 Broadband frequency multiplier May. 13, 2003
6522868 Method and apparatus for generating a communication band signal with reduced phase noise Feb. 18, 2003
6438371 Multimode service radio communication method and apparatus Aug. 20, 2002
6347219 Transmission system, transmission/reception system, and local oscillator to be used in the same Feb. 12, 2002
6035182 Single counter dual modulus frequency division apparatus Mar. 7, 2000
5907590 Frequency dividing circuit, frequency dividing method and telephone terminal device incorporating the frequency dividing circuit May. 25, 1999
5168215 Instantaneous frequency measurement apparatus and method Dec. 1, 1992
5060309 Infrared detector Oct. 22, 1991
4969210 Two-way radio having a PLL Nov. 6, 1990
4953010 FM demodulator including injection locked oscillator/divider Aug. 28, 1990
4949396 Divider method and apparatus with means for avoiding divide by zero errors Aug. 14, 1990

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