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Class Information
Number: 375/334
Name: Pulse or digital communications > Receivers > Angle modulation > Frequency shift keying
Description: Subject matter where the carrier has been modulated by shifting its frequency in accordance with the pulses transmitted.

Sub-classes under this class:

Class Number Class Name Patents
375/336 Minimum shift keying 107
375/335 More than two frequencies 125
375/337 Separate mark and space channels 42

Patents under this class:
1 2 3 4 5 6 7 8 9

Patent Number Title Of Patent Date Issued
8660215 Decoding algorithm for frequency shift key communications Feb. 25, 2014
8654897 Receiving circuit, transmitting circuit, micro-controller and method for power line carrier communication Feb. 18, 2014
8649416 Signal processing apparatus, information processing apparatus, signal processing method, data display method, and program Feb. 11, 2014
8649465 Methods and apparatuses for adaptive clock reconstruction and decoding in audio frequency communication Feb. 11, 2014
8638884 Data processing unit and signal receiver including the data processing unit Jan. 28, 2014
8629716 Modulator, demodulator and modulator-demodulator Jan. 14, 2014
8625720 Demodulation of a digitally frequency-modulated analog received signal by evaluation of the time intervals between the zero crossings Jan. 7, 2014
8625722 GFSK receiver architecture and methodology Jan. 7, 2014
8599861 Active antenna array and method for relaying radio signals Dec. 3, 2013
8594138 Methods for in-band signaling through enhanced variable-rate codecs Nov. 26, 2013
8565338 High bandwidth modulation and transmission Oct. 22, 2013
8559554 Radio transmitter, radio receiver, system and method with a radio transmitter and radio receiver Oct. 15, 2013
8537933 Receiving device, receiving method, and program Sep. 17, 2013
8519784 FSK demodulator Aug. 27, 2013
8513975 Device and method for enabling multi-value digital computation and control Aug. 20, 2013
8514980 Methods and systems for providing bandwidth adjustment Aug. 20, 2013
8483322 Automatic frequency correction Jul. 9, 2013
8483311 Method, apparatus and computer program product for providing a data encoding/decoding scheme Jul. 9, 2013
8472538 Method and apparatus for delay spread estimation Jun. 25, 2013
8472564 Method of automated demodulation and classification of phase-shift-keying signals using hysteretic differential zero-crossing time samples Jun. 25, 2013
8463221 Method and system for wireless local area network (WLAN) phase shifter training Jun. 11, 2013
8446986 Method of estimating log-likelihood ratios and relative S-FSK receiver May. 21, 2013
8422596 Communication device, communication method, and program Apr. 16, 2013
8411799 Receiver with intermediate frequency error correction Apr. 2, 2013
8406322 OFDM demodulation device and method Mar. 26, 2013
8401121 Symbol error detection for bluetooth basic data rate packets Mar. 19, 2013
8402303 Method for encoder frequency shift compensation Mar. 19, 2013
8385495 Frame sync detecting circuit and FSK receiver using the same Feb. 26, 2013
8324963 Demodulation circuit Dec. 4, 2012
8324962 Apparatus and method for demodulation Dec. 4, 2012
8315562 Method and apparatus for reducing spurious RF signals in RFID reader Nov. 20, 2012
8265191 Receiver for object locating and tracking systems and related methods Sep. 11, 2012
8259862 Receivers and symbol decoders thereof Sep. 4, 2012
8259861 Methods and systems for providing bandwidth adjustment Sep. 4, 2012
8254493 High bandwidth modulation and transmission Aug. 28, 2012
8249543 Low-IF integrated data receiver and associated methods Aug. 21, 2012
8243781 Apparatus and method for signal quality measurement on GFSK signals Aug. 14, 2012
8237466 Device and method for enabling multi-value digital computation and control Aug. 7, 2012
8229030 FSK signal modulator for producing a binary FSK signal Jul. 24, 2012
8199860 Detection circuit and detection method of carrier offset Jun. 12, 2012
8170151 FSK receiver May. 1, 2012
8155242 Frequency shift keying (FSK) digital signal receiving apparatus Apr. 10, 2012
8149956 Method of automated demodulation and classification of phase-shift-keying signals using hysteretic differential zero-crossing time samples Apr. 3, 2012
8144654 Communication device performing communication according to two communication methods Mar. 27, 2012
8121231 Method and device for channel response determination Feb. 21, 2012
8121537 Apparatus and method for uplink channel sounding in a wireless communication system Feb. 21, 2012
8116412 Modulation division multiple access Feb. 14, 2012
8107551 Systems and methods for signal modulation and demodulation using phase Jan. 31, 2012
8093942 Frequency translation module data clamp Jan. 10, 2012
8094767 Method and apparatus for timing and/or frequency synchronization in an RF receiver Jan. 10, 2012

1 2 3 4 5 6 7 8 9

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