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Class Information
Number: 375/336
Name: Pulse or digital communications > Receivers > Angle modulation > Frequency shift keying > Minimum shift keying
Description: Subject matter for receiving a signal having frequency shifts equal to the minimum necessary to distinguish a mark from a space.

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8660215 Decoding algorithm for frequency shift key communications Feb. 25, 2014
8644425 Wireless communications device having waveform banks with frequency offset and related methods Feb. 4, 2014
8532228 Automatic frequency offset compensation in zero-intermediate frequency receivers using minimum-shift keying (MSK) signaling Sep. 10, 2013
8463221 Method and system for wireless local area network (WLAN) phase shifter training Jun. 11, 2013
8402303 Method for encoder frequency shift compensation Mar. 19, 2013
8363702 GMSK spread modulation receiver Jan. 29, 2013
8320441 Efficient high performance demodulation of low BT value gaussian minimum shift keying incorporating turbo equalization Nov. 27, 2012
8311146 Radio communication system Nov. 13, 2012
8254987 Method and apparatus for transmitting data between radio equipment and radio equipment controls Aug. 28, 2012
8126089 Method and apparatus for providing frame synchronization in a digital communication system that supports multiple modulation formats Feb. 28, 2012
8094767 Method and apparatus for timing and/or frequency synchronization in an RF receiver Jan. 10, 2012
8090060 Demodulation technique for GFSK and DPSK Jan. 3, 2012
8005161 Method, hardware product, and computer program product for performing high data rate wireless transmission Aug. 23, 2011
7974373 Method and architecture for digital pulse shaping and rate conversion Jul. 5, 2011
7936813 Diversity GMSK-receiver with interference cancellation and methods therein May. 3, 2011
7907685 GMSK-receiver with interference cancellation Mar. 15, 2011
7797614 Non-redundant multi-error correcting binary differential demodulator Sep. 14, 2010
7760818 Data modulator based on Gaussian minimum shift keying (GMSK) modulation and data transmitter including the same Jul. 20, 2010
7738572 Orthogonal frequency division multiplexing (OFDM) receiver capable of correcting in-phase and quadrature-phase mismatch and method thereof Jun. 15, 2010
7719376 Avoidance of discontinuities when switching between modulation schemes May. 18, 2010
7643572 Modulator with controlled transmission bandwidth, and a corresponding method for controlling the transmission bandwidth Jan. 5, 2010
7593487 Non-redundant differential MSK demodulator with double error correction capability Sep. 22, 2009
7570719 Receiver and a receiving method Aug. 4, 2009
7570705 GMSK modulation using a dual-port memory Aug. 4, 2009
7551701 Frequency domain training of prefilters with interference suppression Jun. 23, 2009
7508884 System and method for communicating data using constant amplitude equalized waveform Mar. 24, 2009
7492839 Efficient implementation of GSM/GPRS equalizer Feb. 17, 2009
7460618 System and method for obtaining accurate symbol rate and carrier phase, frequency, and timing acquisition for minimum shift keyed waveform Dec. 2, 2008
7158588 System and method for obtaining accurate symbol rate and carrier phase, frequency, and timing acquisition for minimum shift keyed waveform Jan. 2, 2007
7065157 GMSK modulation techniques Jun. 20, 2006
7035354 CDMA multi-user detection with a real symbol constellation Apr. 25, 2006
6999548 Communication channel detector and channel detection method Feb. 14, 2006
6879647 Radio receiver AM-MSK processing techniques Apr. 12, 2005
6711218 System and method for received signal decoding Mar. 23, 2004
6411661 Digital timing recovery loop for GMSK demodulators Jun. 25, 2002
6323727 Apparatus and method for detecting digital FM Nov. 27, 2001
6160858 MSK signal processing in a GPS correlator channel Dec. 12, 2000
5994953 Apparatus and method for detecting digital FM Nov. 30, 1999
5991346 Method for determining the best time to sample an information signal Nov. 23, 1999
5963586 Method and apparatus for parallel noncoherent correlation of a spread spectrum signal Oct. 5, 1999
5963585 MSK spread-spectrum receiver which allows CDMA operations Oct. 5, 1999
5903186 Demodulator of MSK signal May. 11, 1999
5881100 Method and apparatus for coherent correlation of a spread spectrum signal Mar. 9, 1999
5875213 GMSK communication device test system Feb. 23, 1999
5867059 Demodulating system for MSK and GMSK signal using a fast fourier transform converter Feb. 2, 1999
5856998 Method and apparatus for correlating a continuous phase modulated spread spectrum signal Jan. 5, 1999
5848105 GMSK signal processors for improved communications capacity and quality Dec. 8, 1998
5825810 MSK spread-spectrum receiver which allows CDMA operations Oct. 20, 1998
5796780 Coherent modulation of CPM signals Aug. 18, 1998
5784416 Method and apparatus for detection of a communication signal Jul. 21, 1998

1 2 3

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