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Class Information
Number: 370/482
Name: Multiplex communications > Communication techniques for information carried in plural channels > Combining or distributing information via frequency channels > Particular carrier generation
Description: Subject matter including features specific to a generation of a basic frequency wave (carrier wave); such basic wave is modulated by an information bearing signal (modulating signal) in a modulation process.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7593473 |
Tree structured multicarrier multiple access systems |
Sep. 22, 2009 |
| 7558327 |
Pattern position measuring device, method, and program, and record medium on which the program is recorded |
Jul. 7, 2009 |
| 7450489 |
Multiple-antenna communication systems and methods for communicating in wireless local area networks that include single-antenna communication devices |
Nov. 11, 2008 |
| 7426242 |
Orthogonal frequency digital multiplexing correlation canceller |
Sep. 16, 2008 |
| 7400651 |
Device and method for interpolating frequency components of signal |
Jul. 15, 2008 |
| 7327765 |
Home phone line networking next generation enhancements |
Feb. 5, 2008 |
| 7269127 |
Preamble structures for single-input, single-output (SISO) and multi-input, multi-output (MIMO) communication systems |
Sep. 11, 2007 |
| 7230993 |
Method and apparatus for modulation using an at least four-dimensional signal constellation |
Jun. 12, 2007 |
| 7187734 |
Method of slip compensation for integer frequency offset correction in a wireless communication system |
Mar. 6, 2007 |
| 7035288 |
Modulation of a pilot carrier, and means to perform this modulation |
Apr. 25, 2006 |
| 7031250 |
Method and apparatus for channel estimation |
Apr. 18, 2006 |
| 7016298 |
Signal transmission/reception system of orthogonal frequency division multiplexing |
Mar. 21, 2006 |
| 7012505 |
Method and system for communication on a power distribution line |
Mar. 14, 2006 |
| 6993317 |
Method and system for signal repeating in powerline communications |
Jan. 31, 2006 |
| 6989734 |
Modulated data transfer between a system and its power supply |
Jan. 24, 2006 |
| 6989735 |
Power transfer apparatus for concurrently transmitting data and power over data wires |
Jan. 24, 2006 |
| 6950567 |
Method and apparatus for providing inductive coupling and decoupling of high-frequency, high-bandwidth data signals directly on and off of a high voltage power line |
Sep. 27, 2005 |
| 6937558 |
Transmitter apparatus and receiver apparatus and base station making use of orthogonal frequency division multiplexing and spectrum spreading |
Aug. 30, 2005 |
| 6912233 |
Modulation/demodulation of a pilot carrier, and means to perform the modulation/demodulation |
Jun. 28, 2005 |
| 6876672 |
Method of transmitting data on multiple carriers from a transmitter to a receiver and receiver designed to implement the said method |
Apr. 5, 2005 |
| 6853632 |
Technique for peak power to average power ratio reduction in multicarrier communication systems |
Feb. 8, 2005 |
| 6816453 |
Communication system using orthogonal frequency division multiplexed signal |
Nov. 9, 2004 |
| 6757299 |
Peak power to average power ratio reduction in multicarrier communication systems using error-correcting code |
Jun. 29, 2004 |
| 6741604 |
ADSL transmission in the presence of low-frequency network services |
May. 25, 2004 |
| 6686832 |
High frequency network multiplexed communications over various lines |
Feb. 3, 2004 |
| 6594320 |
Orthogonal Frequency Division Multiplexed (OFDM) carrier acquisition method |
Jul. 15, 2003 |
| 6549120 |
Device for sending and receiving data through power distribution transformers |
Apr. 15, 2003 |
| 6549544 |
Method and apparatus for transmission and reception of FM in-band on-channel digital audio broadcasting |
Apr. 15, 2003 |
| 6510133 |
Multi-carrier transmission method and data transmitter |
Jan. 21, 2003 |
| 6501791 |
Method and apparatus for allocating tones to a plurality of users in a multi-tone modem communications system |
Dec. 31, 2002 |
| 6487252 |
Wireless communication system and method for synchronization |
Nov. 26, 2002 |
| 6437686 |
System for monitoring airport equipments utilizing power-line carrier |
Aug. 20, 2002 |
| 6424661 |
ADSL with RF POTS overlay |
Jul. 23, 2002 |
| 6396803 |
Modulation methods and structures for wireless communication systems and transceivers |
May. 28, 2002 |
| 6370157 |
Automatic frequency control for a cellular base station |
Apr. 9, 2002 |
| 6359868 |
Method and apparatus for transmitting and receiving data multiplexed onto multiple code channels, frequencies and base stations |
Mar. 19, 2002 |
| 6282167 |
OFDM signal organized so as to simplify reception |
Aug. 28, 2001 |
| 6269105 |
Use of features to represent independent bit streams or groups of bits in data transmission systems |
Jul. 31, 2001 |
| 6249213 |
Method for transmitting information over an alternating current power line through a plurality of frequency orthogonal subchannels |
Jun. 19, 2001 |
| 6195537 |
Method and apparatus for strong signal suppression in multi-carrier signals |
Feb. 27, 2001 |
| 6194996 |
Information transfer via power line carrier |
Feb. 27, 2001 |
| 6178175 |
Circuit array and method for creating a data feedback channel from receiver to transmitter in a common frequency network |
Jan. 23, 2001 |
| 6154488 |
Low frequency bilateral communication over distributed power lines |
Nov. 28, 2000 |
| 6148320 |
Multichannel digital signal generation method and apparatus |
Nov. 14, 2000 |
| 6005477 |
Method and apparatus for information transmission via power supply lines |
Dec. 21, 1999 |
| 5844949 |
Power line communication system |
Dec. 1, 1998 |
| 5809030 |
Frequency division multiple access (FDMA) dedicated transmission system, transmitter and receiver used in such a transmission system |
Sep. 15, 1998 |
| 5771224 |
Orthogonal frequency division multiplexing transmission system and transmitter and receiver therefor |
Jun. 23, 1998 |
| 5581229 |
Communication system for a power distribution line |
Dec. 3, 1996 |
| 5581554 |
Multiple access telecommunication network |
Dec. 3, 1996 |
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