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Class Information
Number: 375/279
Name: Pulse or digital communications > Systems using alternating or pulsating current > Angle modulation > Phase shift keying
Description: Subject matter wherein the instantaneous phase of the carrier wave departs from a reference phase in accordance with the transmission of pulses.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7606321 |
System and method for simplifying analog processing in a transmitter incorporating a randomization circuit |
Oct. 20, 2009 |
| 7596187 |
Digital modulation circuit and method as well as digital demodulation circuit and method |
Sep. 29, 2009 |
| 7570694 |
Backward compatible multi-carrier transmission system |
Aug. 4, 2009 |
| 7562280 |
Code design and implementation improvements for low density parity check codes for wireless routers using 802.11N protocol |
Jul. 14, 2009 |
| 7555061 |
Optical communication device |
Jun. 30, 2009 |
| 7545881 |
Method and apparatus for controlling spurious transmissions in a communications system |
Jun. 9, 2009 |
| 7542511 |
Wireless RF link for uncompressed transmission of HDTV signals |
Jun. 2, 2009 |
| 7539266 |
Phase shift keying wireless communication apparatus and method |
May. 26, 2009 |
| 7539265 |
Multiple-input multiple-output code division multiple access (MIMO-CDMA) wireless communication equipment |
May. 26, 2009 |
| 7535965 |
Systems and methods for wireless transmission of uncompressed HDTV signals |
May. 19, 2009 |
| 7535983 |
Method for identifying the beginning of a UWB pulse sequence |
May. 19, 2009 |
| 7529314 |
Carrier phase detector |
May. 5, 2009 |
| 7522658 |
Design method and implementation of optimal linear IIR equalizers for RF transceivers |
Apr. 21, 2009 |
| 7515645 |
Method for dividing the bit rate of QPSK signals into two or several subchannels |
Apr. 7, 2009 |
| 7512188 |
Phase shift keying signaling for integrated circuits |
Mar. 31, 2009 |
| 7474608 |
Method for signaling information by modifying modulation constellations |
Jan. 6, 2009 |
| 7466769 |
Method and apparatus of cross-correlation |
Dec. 16, 2008 |
| 7463682 |
Coding method for binary digits coding and its circuit for digits transmission |
Dec. 9, 2008 |
| 7457375 |
Timing extractor, timing extraction method, and demodulator having the timing extractor |
Nov. 25, 2008 |
| 7443921 |
Mobile body communication apparatus |
Oct. 28, 2008 |
| 7436902 |
Multi-dimensional space Gray code maps for multi-dimensional phase modulation as applied to LDPC (Low Density Parity Check) coded modulation |
Oct. 14, 2008 |
| 7433418 |
Method and apparatus for efficient storage of training sequences for peak to average power constrained modulation formats |
Oct. 7, 2008 |
| 7430247 |
Carrier frequency detection for N-ary phase modulated signal |
Sep. 30, 2008 |
| 7428273 |
Method and apparatus for efficient preamble detection in digital data receivers |
Sep. 23, 2008 |
| 7426246 |
Dual layer signal processing in a layered modulation digital signal system |
Sep. 16, 2008 |
| 7424068 |
Method and system for coding/decoding signals and computer program product therefor |
Sep. 9, 2008 |
| 7424662 |
Method and system for providing low density parity check (LDPC) encoding |
Sep. 9, 2008 |
| 7418047 |
Communication apparatus using a plurality of modulation schemes and transmission apparatus composing such communication apparatus |
Aug. 26, 2008 |
| 7415078 |
Demodulation for phase modulation |
Aug. 19, 2008 |
| 7412008 |
Programmable phase mapping and phase rotation modulator and method |
Aug. 12, 2008 |
| 7409012 |
Modulator and signaling method |
Aug. 5, 2008 |
| 7398075 |
Radio wave reception device and radio wave clock |
Jul. 8, 2008 |
| 7394869 |
RF transmitter architecture for continuous switching between modulation modes |
Jul. 1, 2008 |
| 7376117 |
Interleaving circuit for a multiband OFDM transceiver |
May. 20, 2008 |
| 7372908 |
Radio communication method, radio transmitting apparatus, and radio receiving apparatus |
May. 13, 2008 |
| 7362813 |
Communication system |
Apr. 22, 2008 |
| RE40255 |
Communication system |
Apr. 22, 2008 |
| 7359457 |
Transmission apparatus, reception apparatus and digital radio communication method |
Apr. 15, 2008 |
| 7359449 |
Data communication for wired and wireless communication |
Apr. 15, 2008 |
| RE40206 |
Communication system |
Apr. 1, 2008 |
| 7342987 |
90-degree phase shifter |
Mar. 11, 2008 |
| 7340011 |
Method of frequency multiplication in a radiocommunications apparatus |
Mar. 4, 2008 |
| 7336717 |
Receiver circuit, in particular for a mobile radio |
Feb. 26, 2008 |
| 7327778 |
Multi-mok modulation/demodulation transmission process, corresponding transmitter and receiver |
Feb. 5, 2008 |
| 7315587 |
Demodulation method and apparatus based on differential detection system for .pi./4 shifted QPSK modulated wave |
Jan. 1, 2008 |
| 7313208 |
Pre-equalization for low-cost DTV translators |
Dec. 25, 2007 |
| 7302007 |
Communication system |
Nov. 27, 2007 |
| 7298789 |
Polarization modulation with amplitude differential |
Nov. 20, 2007 |
| 7292646 |
Apparatus and method for synchronous demodulation |
Nov. 6, 2007 |
| 7292645 |
Binary transmitter and method of transmitting data in binary format |
Nov. 6, 2007 |
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