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Class Information
Number: 455/205
Name: Telecommunications > Receiver or analog modulated signal frequency converter > Frequency or phase modulation
Description: Subject matter comprising a receiver system designed to convert a frequency-modulated or phase-modulated carrier wave input into perceptible output signals representative of the useful information contained in the modulation signal.










Sub-classes under this class:

Class Number Class Name Patents
455/206 Responsive to one of overlapping signals 29
455/210 With carrier amplitude modulation elimination (e.g., specified limiter) 43
455/214 With particular discriminator or detector 322
455/216 With particular frequency division or multiplication 60
455/207 With plural conversion 111
455/212 With squelch or other audio output silencing 154
455/208 With synchronized or controlled local oscillator 225


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
8706067 Wireless sensor with analog detector Apr. 22, 2014
8693949 Near-field RF communicators having a low-energy pre-polling process Apr. 8, 2014
8670704 Pilot transmission by relay stations in a multihop relay communication system Mar. 11, 2014
8630265 Method and apparatus for accommodating higher order modulation in wireless communication Jan. 14, 2014
8599746 Dynamic power usage management based on historical traffic pattern data for network devices Dec. 3, 2013
8583170 Multi-band aggregated spectrum receiver employing frequency source reuse Nov. 12, 2013
8571501 Cellular handheld device with FM Radio Data System receiver Oct. 29, 2013
8532601 Integrated low-IF terrestrial audio broadcast receiver and associated method Sep. 10, 2013
8457178 Frequency offset estimator Jun. 4, 2013
8457578 Discrete time receiver Jun. 4, 2013
8412138 Digital signal processing system and multi-signal connector thereof Apr. 2, 2013
8406717 Digital FM stereo receiver architecture to recover carrier information based on stereo or mono signals Mar. 26, 2013
8406707 Systems and methods for implementing a harmonic rejection mixer Mar. 26, 2013
8385868 Diversity antenna system and method utilizing a threshold value Feb. 26, 2013
8380140 Microwave/millimeter wave communication apparatus Feb. 19, 2013
8364073 Radio receiver Jan. 29, 2013
8347121 System and method for adjusting an energy efficient ethernet control policy using measured power savings Jan. 1, 2013
8335483 Receiver device, system, and method for low-energy reception of data Dec. 18, 2012
8331890 Duty-to-voltage amplifier, FM receiver and method for amplifying a peak of a multiplexed signal Dec. 11, 2012
8325794 Apparatus and method for calibrating IQ mismatch Dec. 4, 2012
8320862 Receiver and receiving system Nov. 27, 2012
8300569 Digital broadcasting system and method of processing data in digital broadcasting system Oct. 30, 2012
8238903 Methods for optimizing the performance, cost and constellation design of satellites for full and partial earth coverage Aug. 7, 2012
8233451 Method and apparatus for accommodating higher order modulation in wireless communication Jul. 31, 2012
8213892 FM-AM demodulator and control method therefor Jul. 3, 2012
8195465 Time-warping of decoded audio signal after packet loss Jun. 5, 2012
8185798 Techniques for reducing joint detection complexity in a channel-coded multiple-input multiple-output communication system May. 22, 2012
8179857 Method of transmitting scheduling request in a wireless communication system May. 15, 2012
8175280 Generation of spatial downmixes from parametric representations of multi channel signals May. 8, 2012
8170151 FSK receiver May. 1, 2012
8170512 Wireless transmitter May. 1, 2012
8165538 Systems and methods for implementing a harmonic rejection mixer Apr. 24, 2012
8160491 GPS synchronization method for mobile wireless networks Apr. 17, 2012
8155610 Combining multiple frequency modulation (FM) signals in a receiver Apr. 10, 2012
8155618 Receiving device for frequency modulated signals with voltage-limited reference input to demodulated signal binarization comparator Apr. 10, 2012
8140034 Frequency locked feedback loop for wireless communications Mar. 20, 2012
8140037 Wireless transmission apparatus and modulation scheme selection method Mar. 20, 2012
8135362 Symbol stream virtual radio organism method and apparatus Mar. 13, 2012
8121570 Method and system for flexible FM tuning Feb. 21, 2012
8116709 Frequency measuring broadband digital receiver Feb. 14, 2012
8116708 Wireless receiver Feb. 14, 2012
8112051 Method and system for false frequency lock free autonomous scan in a receiver Feb. 7, 2012
8090575 Voice modulation recognition in a radio-to-SIP adapter Jan. 3, 2012
8086189 Phase-to-frequency conversion for polar transmitters Dec. 27, 2011
8078458 Packet loss concealment for sub-band predictive coding based on extrapolation of sub-band audio waveforms Dec. 13, 2011
8078125 Method for demodulating a modulated signal, demodulator and receiver Dec. 13, 2011
8073079 Angle-modulated signal threshold extension device and method Dec. 6, 2011
8064858 Digital carrier-recovery scheme for FM stereo detection Nov. 22, 2011
8060049 Integrated low-if terrestrial audio broadcast receiver and associated method Nov. 15, 2011

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