| |
 |
|
Class Information
Number: 375/223
Name: Pulse or digital communications > Transceivers > Modems (data sets) > Angle modulation
Description: Subject matter in which the transmitted characteristic or pulses to be transmitted vary the phase or frequency of a carrier wave.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7570705 |
GMSK modulation using a dual-port memory |
Aug. 4, 2009 |
| 7551988 |
Method of software defined radio (SDR) waveform/function management |
Jun. 23, 2009 |
| 7508860 |
Pulse signal generator for ultra-wideband radio transception and radio transceiver having the same |
Mar. 24, 2009 |
| 7492844 |
Data processing method, equalizer and receiver |
Feb. 17, 2009 |
| 7430215 |
Interleaver, deinterleaver, interleaving method, and deinterleaving method for OFDM data |
Sep. 30, 2008 |
| 7376207 |
Apparatus for receiving and recovering frequency shift keyed symbols |
May. 20, 2008 |
| 7372900 |
Method and system for selecting an optimal asymmetric digital subscriber line mode |
May. 13, 2008 |
| 7308004 |
Method and apparatus of multiplexing and demultiplexing communication signals |
Dec. 11, 2007 |
| 7305046 |
I/Q modulator with carrier predistortion |
Dec. 4, 2007 |
| 7302011 |
Quadrature frequency doubling system |
Nov. 27, 2007 |
| 7254167 |
Constellation-multiplexed transmitter and receiver |
Aug. 7, 2007 |
| 7218680 |
Retransmission techniques for enhanced performance in fading wireless communication channels |
May. 15, 2007 |
| 7215931 |
Method and apparatus for up-and-down-conversion of radio frequency (RF) signals |
May. 8, 2007 |
| 7177364 |
System, decoder and method for transmitting, receiving and decoding high-speed digital data signals with reduced electromagnetic emissions |
Feb. 13, 2007 |
| 7103159 |
Off-hook notifier |
Sep. 5, 2006 |
| 7092678 |
Front end module for wireless network system |
Aug. 15, 2006 |
| 7027503 |
Receiver with a decision feedback equalizer and a linear equalizer |
Apr. 11, 2006 |
| 6977965 |
Phase shift key burst receiver having improved phase resolution and timing and data recovery |
Dec. 20, 2005 |
| 6952159 |
Coupling device |
Oct. 4, 2005 |
| 6876708 |
Method and apparatus for demodulation of phase shift keyed signals |
Apr. 5, 2005 |
| 6847812 |
Frequency-stabilized transceiver configuration |
Jan. 25, 2005 |
| 6731679 |
Modulator/demodulator and method of modulation/demodulation used for same |
May. 4, 2004 |
| 6693957 |
Adaptive front end for discrete multitone modem |
Feb. 17, 2004 |
| 6603809 |
Apparatus, and associated method, for forming a signal for communication upon a fading channel |
Aug. 5, 2003 |
| 6570913 |
Method and apparatus for selecting optimum frequency for upstream data transmission in a network system utilizing cable modems |
May. 27, 2003 |
| 6553063 |
Constellation-multiplexed transmitter and receiver |
Apr. 22, 2003 |
| 6507585 |
Multi-carrier LAN adapter device using frequency domain equalizer |
Jan. 14, 2003 |
| 6463095 |
IC card radio modem and communication system using the same for communicating with a plurality of different infrastructures |
Oct. 8, 2002 |
| 6400776 |
Method and apparatus for high speed data transmission by spectral decomposition of the signaling space |
Jun. 4, 2002 |
| 6330278 |
Dynamic adaptive modulation negotiation for point-to-point terrestrial links |
Dec. 11, 2001 |
| 6286105 |
Method for implementing link-level security to enforce access privileges |
Sep. 4, 2001 |
| 6259728 |
Data communication system and method |
Jul. 10, 2001 |
| 6236676 |
Intelligent adaptive modulation system |
May. 22, 2001 |
| 6169767 |
Universal network interface module |
Jan. 2, 2001 |
| 6163570 |
Methods and apparatus for verifying transmit power levels in a signal point limited transmission system |
Dec. 19, 2000 |
| 6128336 |
Reliable exchange of modem handshaking information over a cellular radio carrier |
Oct. 3, 2000 |
| 6061391 |
Error indicator, and data modulator-demodulator and indicating method of light emitter therein |
May. 9, 2000 |
| 6052037 |
Modulation method and apparatus |
Apr. 18, 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 |
| 5940438 |
Universal modem for digital video, audio and data communications |
Aug. 17, 1999 |
| 5912926 |
Method of and apparatus for controlling modulation of digital signals in frequency modulated transmissions |
Jun. 15, 1999 |
| 5883922 |
FSK communication device for digital information |
Mar. 16, 1999 |
| 5875229 |
System and device for, and method of, detecting, characterizing, and mitigating deterministic distortion in a communications network |
Feb. 23, 1999 |
| 5828698 |
Data flow management method for CDPD demodulator operating without CDPD clock |
Oct. 27, 1998 |
| 5787117 |
Receiver/transmitter having common elements |
Jul. 28, 1998 |
| 5754589 |
Noncompressed voice and data communication over modem for a computer-based multifunction personal communications system |
May. 19, 1998 |
| 5642380 |
Data communication system and modem therefor |
Jun. 24, 1997 |
| 5636037 |
Modem unit |
Jun. 3, 1997 |
| 5570389 |
Method for reliable exchange of modem handshaking information over a cellular radio carrier |
Oct. 29, 1996 |
| 5537448 |
Switchable PLL circuit with constant amplification gradient |
Jul. 16, 1996 |
|
|
|
