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Class Information
Number: 370/213
Name: Multiplex communications > Pulse position modulation
Description: Subject matter wherein information is contained in the time of occurrence of a pulse after a reference pulse.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7489621 |
Adaptive puncturing technique for multicarrier systems |
Feb. 10, 2009 |
| 7486221 |
Methods and systems for using pulsed radar for communications transparent to radar function |
Feb. 3, 2009 |
| 7483365 |
Process for obtaining notches in the transmission of signals over the electricity network |
Jan. 27, 2009 |
| 7447145 |
Data communication device selecting modulation method with an appropriate threshold value in adaptive modulation |
Nov. 4, 2008 |
| 7408872 |
Modulation of signals for transmission in packets via an air interface |
Aug. 5, 2008 |
| 7366235 |
UWB demodulating apparatus |
Apr. 29, 2008 |
| 7330662 |
System and method for remote optical digital networking of computing devices |
Feb. 12, 2008 |
| 7315898 |
Data communication system, data transmission apparatus, data reception apparatus, data communication method, and computer program |
Jan. 1, 2008 |
| 7295509 |
Signaling method in an OFDM multiple access system |
Nov. 13, 2007 |
| 7209974 |
System and method for maintaining message synchronism during transmission of internal messages |
Apr. 24, 2007 |
| 6937646 |
Leakage nulling receiver correlator structure and method for ultra wide bandwidth communication system |
Aug. 30, 2005 |
| 6931078 |
Ultra wide bandwidth spread-spectrum communications systems |
Aug. 16, 2005 |
| 6920289 |
System and method for remote optical digital networking of computing devices |
Jul. 19, 2005 |
| 6901112 |
Ultra wide bandwidth spread-spectrum communications system |
May. 31, 2005 |
| 6738173 |
Limiting amplifier modulator driver |
May. 18, 2004 |
| 6434716 |
Network link tester device configured to selectively and automatically couple to a network transmit pair line or a node transmit pair line of a LAN port and determine available operational mod |
Aug. 13, 2002 |
| 6381213 |
Method and apparatus for detecting collisions on a network |
Apr. 30, 2002 |
| 6359525 |
Modulation technique for transmitting multiple high data rate signals through a band limited channel |
Mar. 19, 2002 |
| 6295318 |
Method and system for increasing the data rate over twisted copper pairs and other bandwidth-limited dedicated communications facilities |
Sep. 25, 2001 |
| 6205169 |
Spread spectrum pulse position modulation communication system |
Mar. 20, 2001 |
| 6169765 |
Apparatus and method for output signal pulse width error correction in a communications receiver |
Jan. 2, 2001 |
| 6160792 |
Pulse amplitude modulated tone generator |
Dec. 12, 2000 |
| 6151149 |
Method and apparatus for pulse pattern modulation |
Nov. 21, 2000 |
| 6115411 |
System and method for spread spectrum code position modulation and wireless local area network employing the same |
Sep. 5, 2000 |
| 6108376 |
Reception and demodulation of widely spaced pulse position modulated signals |
Aug. 22, 2000 |
| 6055266 |
Spread spectrum pulse position modulation communication system |
Apr. 25, 2000 |
| 6041074 |
Spread spectrum pulse position modulation system |
Mar. 21, 2000 |
| 6031862 |
Ultrawide-band communication system and method |
Feb. 29, 2000 |
| 5982742 |
Multiple access simplex mode communication systems and methods therefor |
Nov. 9, 1999 |
| 5963539 |
Method and apparatus for detecting collisions on a network |
Oct. 5, 1999 |
| 5952936 |
Bidirectional remote control system using interrupt arbitration |
Sep. 14, 1999 |
| 5923701 |
Spread spectrum pulse position modulation system |
Jul. 13, 1999 |
| 5870380 |
Method and apparatus for reception of signals from several transmitters wherein each transmitter is characterized by their output pulse train |
Feb. 9, 1999 |
| 5870381 |
Method for transmitting signals from a plurality of transmitting units and receiving the signals |
Feb. 9, 1999 |
| 5844942 |
Pulse position modulation communications protocol |
Dec. 1, 1998 |
| 5818617 |
Optical data communication and location apparatus, system and method and transmitters and receivers for use therewith |
Oct. 6, 1998 |
| 5764697 |
Transmitter for a radio control device |
Jun. 9, 1998 |
| 5692127 |
System for transmitting multiple pulses PPM control signal to wireless device to indicate collision in a wired network while placing data on the network |
Nov. 25, 1997 |
| 5684871 |
Method and apparatus for multi-mode infrared data transmission |
Nov. 4, 1997 |
| 5666379 |
Best-of-M pulse position modulation detector |
Sep. 9, 1997 |
| 5640419 |
Covert communication system |
Jun. 17, 1997 |
| 5633742 |
Optical data communication and location apparatus, system and method and transmitters and receivers for use therewith |
May. 27, 1997 |
| 5623511 |
Spread spectrum code pulse position modulated receiver having delay spread compensation |
Apr. 22, 1997 |
| 5610903 |
Auto negotiation system for a communications network |
Mar. 11, 1997 |
| 5596601 |
Method and apparatus for spread spectrum code pulse position modulation |
Jan. 21, 1997 |
| 5586145 |
Transmission of electronic information by pulse position modulation utilizing low average power |
Dec. 17, 1996 |
| 5408351 |
Optical communication system |
Apr. 18, 1995 |
| 5353303 |
Technique for increasing the data rate in a spread spectrum data link |
Oct. 4, 1994 |
| 5007042 |
Method and apparatus for transmitting analog data embedded in a digital pulse train |
Apr. 9, 1991 |
| 4866738 |
Circuit and method for deriving the word timing of a pulse position modulated signal |
Sep. 12, 1989 |
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