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Class Information
Number: 375/322
Name: Pulse or digital communications > Receivers > Angle modulation
Description: Subject matter where the angle of the sine wave carrier is varied in accordance with the pulse or digital information.


Sub-classes under this class:

Class Number Class Name Patents
375/323 Combined phase shift keyed and frequency shift keyed 52
375/334 Frequency shift keying 331
375/324 Particular demodulator 731
375/329 Phase shift keying 508


Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
7602862 Mixing module and methods for use therewith Oct. 13, 2009
7599627 Method and system for a polarization mode dispersion tolerant optical homodyne detection system with optimized transmission modulation Oct. 6, 2009
7587010 Complex filter circuit and receiver circuit Sep. 8, 2009
7580480 Demodulation method using soft decision for quadrature amplitude modulation and apparatus thereof Aug. 25, 2009
7567626 Radio receiver for the reception of data bursts which are modulated with two modulation types Jul. 28, 2009
7564782 Transmission format, communication control apparatus and method, recording medium, and program Jul. 21, 2009
7564926 Method and device for calculating zero-crossing reference sequences for signal detection of angle-modulated signals based on zero crossings of the received signal Jul. 21, 2009
7551694 Limiter based analog demodulator Jun. 23, 2009
7546088 Method and apparatus for blending an audio signal in an in-band on-channel radio system Jun. 9, 2009
7541966 Apparatus and method for demodulating a modulated signal Jun. 2, 2009
7486717 Method and device for demodulating Galileo alternate binary offset carrier (Alt-BOC) signals Feb. 3, 2009
7474713 System and method for demodulating multiple QAM signals Jan. 6, 2009
7471745 Method and apparatus for channel quality metric generation within a packet-based multicarrier modulation communication system Dec. 30, 2008
7466747 Method and apparatus for wireless data transfer Dec. 16, 2008
7453962 Adaptive frequency control apparatus and method thereof Nov. 18, 2008
7437137 Mixer system Oct. 14, 2008
7426246 Dual layer signal processing in a layered modulation digital signal system Sep. 16, 2008
7424066 Receiver structures for selectable direct conversion and low intermediate frequency operational modes Sep. 9, 2008
7379723 Local oscillator and mixer for transceiver May. 27, 2008
7349493 Demodulation with separate branches for phase and amplitude Mar. 25, 2008
7336731 Demodulator with phase-adjusting function Feb. 26, 2008
7336717 Receiver circuit, in particular for a mobile radio Feb. 26, 2008
7327776 Time domain spreading method and apparatus for a UWB receiver comprising fast fourier transform and exchange of real and imaginary complex signal components Feb. 5, 2008
7327806 System/method for receiving ASK and FSK signals using a single RF receiver Feb. 5, 2008
7317768 Demodulator and demodulation method for demodulating received signals Jan. 8, 2008
7313206 Modified branch metrics for processing soft decisions to account for phase noise impact on cluster variance Dec. 25, 2007
7313204 Method and device for transmitting and identifying a modulation type in digital communication systems by way of a phase rotation factor applied to a training sequence Dec. 25, 2007
7313099 Phase system rotation for power estimation Dec. 25, 2007
7280618 Digital baseband receiver including a high pass filter compensation module for suppressing group delay variation distortion incurred due to analog high pass filter deficiencies Oct. 9, 2007
7281192 LDPC (Low Density Parity Check) coded signal decoding using parallel and simultaneous bit node and check node processing Oct. 9, 2007
7277501 Data receiving device Oct. 2, 2007
7272197 Device for recovering carrier Sep. 18, 2007
7266161 Efficient method and apparatus for parallel processing for use with high-speed single-bit sampling Sep. 4, 2007
7266162 Carrier frequency offset estimator for OFDM systems Sep. 4, 2007
7248649 Digital baseband receiver including a time domain compensation module for suppressing group delay variation distortion incurred due to analog low pass filter deficiencies Jul. 24, 2007
7239431 System and method for recovering primary channel operation in a facsimile receiver and facsimile machine incorporating the same Jul. 3, 2007
7233630 Modulation method and radio communication system Jun. 19, 2007
7231002 Apparatus for recovering carrier Jun. 12, 2007
7231266 Digital control device and program Jun. 12, 2007
7227912 Receiver with mirror frequency suppression Jun. 5, 2007
7224717 System and method for cross correlation receiver May. 29, 2007
7203253 Method and apparatus of cross-correlation Apr. 10, 2007
7197090 Adaptive decision regions and metrics Mar. 27, 2007
7190939 Time division IQ channel direct conversion receiver and method therefor Mar. 13, 2007
7184494 Regenerated data signal generation apparatus Feb. 27, 2007
7173981 Dual layer signal processing in a layered modulation digital signal system Feb. 6, 2007
7173982 Method and circuit for digitally correcting the frequency of a signal Feb. 6, 2007
7164738 Signal canceling method and device Jan. 16, 2007
7162000 Delay locked loop synthesizer with multiple outputs and digital modulation Jan. 9, 2007
7136435 Modified branch metrics for processing soft decisions to account for phase noise impact on cluster variance Nov. 14, 2006

1 2 3 4


 
 
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