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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:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6449321 |
Radio receiver |
Sep. 10, 2002 |
| 6445745 |
Phase encoding methods for handling multiple phase modulated signals on a single channel |
Sep. 3, 2002 |
| 6442216 |
Digital demodulator using boxcar filters and boxcar filter sections |
Aug. 27, 2002 |
| 6438179 |
Frequency demodulation apparatus and method |
Aug. 20, 2002 |
| 6384753 |
High density analog interface |
May. 7, 2002 |
| 6366622 |
Apparatus and method for wireless communications |
Apr. 2, 2002 |
| 6337888 |
In-phase and quadrature signal regeneration |
Jan. 8, 2002 |
| 6324222 |
Digital receiver with polyphase structure |
Nov. 27, 2001 |
| 6314143 |
Circuit configuration for manipulation-protected reception of an OOK-modulated signal |
Nov. 6, 2001 |
| 6298099 |
Constant envelope modulation communication system |
Oct. 2, 2001 |
| 6275542 |
Direct conversion receiver including mixer down-converting incoming signal, and demodulator operating on downconverted signal |
Aug. 14, 2001 |
| 6263027 |
Modulator and process for minimizing power consumption and communication system employing same |
Jul. 17, 2001 |
| 6246728 |
Apparatus for suppressing interfering DC component shifts in a radio receiver of the direct conversion type, and a corresponding method suppression |
Jun. 12, 2001 |
| 6198781 |
Apparatus and method of demodulating coded signal under OFDM transmission |
Mar. 6, 2001 |
| 6195399 |
Method and apparatus for converting a wideband if signal to a complex (quadrature) baseband signal |
Feb. 27, 2001 |
| 6192085 |
Circuit arrangement with a data sequence generator |
Feb. 20, 2001 |
| 6178208 |
System for recovery of digital data from amplitude and phase modulated line signals using delay lines |
Jan. 23, 2001 |
| 6163209 |
Demodulation of angle modulated carriers using a noncoherent reference |
Dec. 19, 2000 |
| 6125148 |
Method for demodulating information in a communication system that supports multiple modulation schemes |
Sep. 26, 2000 |
| 6085073 |
Method and system for reducing the sampling rate of a signal for use in demodulating high modulation index frequency modulated signals |
Jul. 4, 2000 |
| 6044109 |
Modem signal transmitter, modem signal transmitting method, modem signal receiver, modem signal receiving method, modem signal transmitting/receiving system and modem signal transmitting/recei |
Mar. 28, 2000 |
| 6005506 |
Receiver with sigma-delta analog-to-digital converter for sampling a received signal |
Dec. 21, 1999 |
| 5960044 |
Apparatus and method for block phase estimation |
Sep. 28, 1999 |
| 5949826 |
Data transmission and reception system |
Sep. 7, 1999 |
| 5907797 |
Radio communication analyzer having collective measurement function of transmission test items |
May. 25, 1999 |
| 5898737 |
Adaptive digital symbol recovery for amplitude phased keyed digital communication systems |
Apr. 27, 1999 |
| 5878084 |
Method and apparatus for recovering the independent bit streams from each of two co-channel frequency modulated carriers |
Mar. 2, 1999 |
| 5832027 |
Spread spectrum modulating and demodulating apparatus for transmission and reception of FSK and PSK signals |
Nov. 3, 1998 |
| 5828705 |
Carrier tracking technique and apparatus having automatic flywheel/tracking/reacquisition control and extended signal to noise ratio |
Oct. 27, 1998 |
| 5812607 |
Method and apparatus for processing wideband data in a digital cellular communication system |
Sep. 22, 1998 |
| 5784293 |
Apparatus and method for determining transmitted modulation symbols |
Jul. 21, 1998 |
| 5757857 |
High speed self-adjusting clock recovery circuit with frequency detection |
May. 26, 1998 |
| 5719903 |
Method and apparatus for receiving symbols |
Feb. 17, 1998 |
| 5703908 |
Fixed reference shift keying modulation for mobile radio telecommunications |
Dec. 30, 1997 |
| 5703910 |
Digital radio receiver |
Dec. 30, 1997 |
| 5659578 |
High rate Reed-Solomon concatenated trellis coded 16 star QAM system for transmission of data over cellular mobile radio |
Aug. 19, 1997 |
| 5638404 |
Pre-compensated frequency modulation (PFM) |
Jun. 10, 1997 |
| 5619537 |
Maximum a posteriori decoder for digital communications |
Apr. 8, 1997 |
| 5612976 |
Detectors |
Mar. 18, 1997 |
| 5579342 |
Pre-compensated frequency modulation (PFM) |
Nov. 26, 1996 |
| 5557637 |
Convolutional ambiguity multiple access (CAMA) transmission system |
Sep. 17, 1996 |
| 5557644 |
Signal demodulating and decoding apparatus and signal demodulating and decoding method |
Sep. 17, 1996 |
| 5491724 |
Mean phase predictor for maximum a posteriori demodulator |
Feb. 13, 1996 |
| 5455845 |
Microwave receiver having coherent threshold detection |
Oct. 3, 1995 |
| 5454007 |
Arrangement for and method of concurrent quadrature downconversion input sampling of a bandpass signal |
Sep. 26, 1995 |
| 5303269 |
Optically maximum A posteriori demodulator |
Apr. 12, 1994 |
| 5202902 |
Carrier recovery method for modulation having a large number of states, and apparatus for implementing the method |
Apr. 13, 1993 |
| 5068875 |
Adaptive loop gain phase filter |
Nov. 26, 1991 |
| 4955083 |
Dual mode radio transceiver for an SSB communication system |
Sep. 4, 1990 |
| 4864591 |
Facsimile signal modulation detector |
Sep. 5, 1989 |
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