Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Communications
Class Information
Number: 329/304
Name: Demodulators > Phase shift keying or quadrature amplitude demodulator
Description: Subject matter where the demodulator extracts the modulating signal from a signal which has undergone phase shift keying modulation or quadrature amplitude modulation.










Sub-classes under this class:

Class Number Class Name Patents
329/305 Including discrete semiconductor device 33
329/310 Including logic element (e.g., logic gate or flip-flop) 133
329/306 Input signal combined with local oscillator or carrier frequency signal 239


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12

Patent Number Title Of Patent Date Issued
8674758 Method and apparatus for improved high order modulation Mar. 18, 2014
8670505 Early detection of segment type using BPSK and DBPSK modulated carriers in ISDB-T receivers Mar. 11, 2014
8660208 Apparatus and methods for QAM modulation using dual polar modulation Feb. 25, 2014
8654897 Receiving circuit, transmitting circuit, micro-controller and method for power line carrier communication Feb. 18, 2014
8631093 Remote data acquisition, transmission and analysis system including handheld wireless equipment Jan. 14, 2014
8537917 Apparatus and method for mapping symbol Sep. 17, 2013
8520780 Communication units, communication system and methods for modulation and demodulation Aug. 27, 2013
8509358 Viterbi equalization with detection of the nearest constellation points for stage reduction Aug. 13, 2013
8483316 Modulation apparatus, modulation method, demodulation apparatus, and demodulation method Jul. 9, 2013
8442132 Method and apparatus for allocating processing delays in multi-carrier systems May. 14, 2013
8426717 Discriminator for discriminating employed modulation technique, signal demodulator, musical instrument and method of discrimination Apr. 23, 2013
8416871 Apparatus and method for transmitting/receiving data in a wireless communication system Apr. 9, 2013
8391349 Equalizer with automatic gain control (AGC) Mar. 5, 2013
8368477 Receiver including an LCD tank filter and method thereof Feb. 5, 2013
8345801 Apparatus and method for signal mismatch compensation in a wireless receiver Jan. 1, 2013
8324963 Demodulation circuit Dec. 4, 2012
8294513 Demodulator and demodulation method Oct. 23, 2012
8283975 Data processing system Oct. 9, 2012
8284869 QAM demodulation Oct. 9, 2012
8269569 Test apparatus for digital modulated signal Sep. 18, 2012
8270511 Methodology and method and appartus for signaling with capacity optimized constellations Sep. 18, 2012
8265192 Multilevel QAM demodulator, multilevel QAM demodulation method, and wireless communication system Sep. 11, 2012
8237494 Apparatus and method for determination of signal format Aug. 7, 2012
8237667 Phase compensation for multi-stimulus controller Aug. 7, 2012
8229022 Modulation and demodulation method, modulation apparatus and demodulation apparatus Jul. 24, 2012
8189708 System and method for accurate downlink power control of composite QPSK modulated signals May. 29, 2012
8170149 OFDM receiver apparatus May. 1, 2012
8138824 Recursive demodulation apparatus and method Mar. 20, 2012
8135094 Receiver I/Q group delay mismatch correction Mar. 13, 2012
8102948 Carrier recovery apparatus and method thereof Jan. 24, 2012
8085088 Quadrature signal demodulator circuitry suitable for doppler ultrasound Dec. 27, 2011
8081027 Reception device, control method, and program Dec. 20, 2011
8077803 Quarter duty cycle pulse generator for interleaved switching mixer Dec. 13, 2011
8073080 Method and system for RC-CR quadrature generation with wideband coverage and process compensation Dec. 6, 2011
8059766 Communications device and related method with reduced false detects during start of message bit correlation Nov. 15, 2011
8059767 Communications device and related method that detects symbol timing Nov. 15, 2011
8054920 Communications device and related method with improved acquisition estimates of frequency offset and phase error Nov. 8, 2011
8044713 Receiving circuit and method for receiving an amplitude shift keying signal Oct. 25, 2011
8036319 Direct conversion receiver and method for correcting phase imbalance therein Oct. 11, 2011
8023578 Two-stage low-complexity max-log bit-level LLR calculator and method Sep. 20, 2011
8022781 Redundancy system for a telecommunication system and related methods Sep. 20, 2011
7994851 PSK demodulator using time-to-digital converter Aug. 9, 2011
7970079 Phase shift keying wireless communication apparatus and method Jun. 28, 2011
7911266 Low complexity and low power phase shift keying demodulator structure Mar. 22, 2011
7885360 Wireless communication apparatus and receiving method Feb. 8, 2011
7881405 Combined mixer and polyphase decimator Feb. 1, 2011
7876149 Harmonic quadrature demodulation apparatus and method thereof Jan. 25, 2011
7872544 Modulation/demodulation apparatus and modulation/demodulation method Jan. 18, 2011
7864893 Decoder with soft decision combining Jan. 4, 2011
7835457 Demodulating a signal having multiple frequency bands Nov. 16, 2010

1 2 3 4 5 6 7 8 9 10 11 12










 
 
  Recently Added Patents
Personalized dashboard architecture for displaying data display applications
Stack and folding-typed electrode assembly and method for preparation of the same
Scattering spectroscopy employing hotspot-aligned nanopores
Monitoring device for monitoring a display device
Memory controller including a hardware compression and decompression engine for managing system memory and graphical operations
Semiconductor device having a plurality of elements on one semiconductor substrate and method of manufacturing the same
Secure device sharing
  Randomly Featured Patents
Low CTE cordierite bodies with narrow pore size distribution and method of making same
Image processing apparatus and image processing method
Rail system for supporting equipment in a rack
Fluorescent material, a method of manufacturing the fluorescent material, a radiation detector using the fluorescent material, and an X-ray CT scanner
Technique for reducing rectifier reverse-recovery-related losses in high-voltage high power converters
Software self-checking systems and methods
Rice flour based low oil uptake frying batters
Digital FSK signal demodulator
Preparation of molecular sieve catalysts and their use in the production of alkylaromatic hydrocarbons
Portable terminal