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Class Information
Number: 370/281
Name: Multiplex communications > Duplex > Communication over free space > Frequency division
Description: Subject matter wherein simultaneous transmission and reception between communicating stations occur in separate portions of the frequency spectrum of the transmission medium.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7379430 |
Dual band unidirectional scheme in a cellular mobile radio telecommunications system |
May. 27, 2008 |
| 7340622 |
Method and apparatus for selectively increasing the operating speed of an electronic circuit |
Mar. 4, 2008 |
| 7336626 |
Operating time division duplex (TDD) wireless systems in paired spectrum (FDD) allocations |
Feb. 26, 2008 |
| 7333446 |
Split-band, filter duplexer assembly, and associated method |
Feb. 19, 2008 |
| 7317761 |
Multi-carrier communication system and receiver thereof |
Jan. 8, 2008 |
| 7313191 |
Receiver device of communication system |
Dec. 25, 2007 |
| 7313085 |
Method for creating symmetric-identical preamble and method for synchronizing symbol and frequency of orthogonal frequency division multiplexed signals by using symmetric-identical preamble |
Dec. 25, 2007 |
| 7310304 |
Estimating channel parameters in multi-input, multi-output (MIMO) systems |
Dec. 18, 2007 |
| 7260067 |
Spectrum and bin reassignment protocol for ADSL |
Aug. 21, 2007 |
| 7254331 |
System and method for multiple bit optical data transmission in memory systems |
Aug. 7, 2007 |
| 7236464 |
Flexible method and apparatus for encoding and decoding signals using a time division multiple frequency scheme |
Jun. 26, 2007 |
| 7224676 |
Mobile station, base station and communication method |
May. 29, 2007 |
| 7177598 |
Method and system for reducing channel interference in a frame-synchronized wireless communication system |
Feb. 13, 2007 |
| 7171570 |
Method and apparatus for selectively increasing the operating speed of an electronic circuit |
Jan. 30, 2007 |
| 7123591 |
Frequency multiplex transmitter and method for eliminating crosstalk |
Oct. 17, 2006 |
| 7117156 |
Method and apparatus for performing packet loss or frame erasure concealment |
Oct. 3, 2006 |
| 7092716 |
Idle mode handling in a hybrid GSM/CDMA network |
Aug. 15, 2006 |
| 7079847 |
Controller and transceiver employable in a wireless communications network |
Jul. 18, 2006 |
| 7072289 |
Pseudo-random sequence padding in an OFDM modulation system |
Jul. 4, 2006 |
| 7054279 |
Method and apparatus for optimizing signal transformation in a frame-based communications network |
May. 30, 2006 |
| 7053798 |
Device for controlling a computer system |
May. 30, 2006 |
| 7039020 |
Near-echo suppression |
May. 2, 2006 |
| 7009931 |
Synchronization in a multiple-input/multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) system for wireless applications |
Mar. 7, 2006 |
| 6963544 |
System for statistically multiplexing real-time and non-real-time voice and data traffic in a wireless system |
Nov. 8, 2005 |
| 6940828 |
Apparatus, and associated method, for transforming data in an OFDM communication system |
Sep. 6, 2005 |
| 6922402 |
Mutual frequency locking across a link |
Jul. 26, 2005 |
| 6853629 |
Method for frequency division duplex communications |
Feb. 8, 2005 |
| 6816470 |
Method and apparatus for interference signal code power and noise variance estimation |
Nov. 9, 2004 |
| 6810023 |
Method and radio communications system for transmitting information between a base station and other radio stations |
Oct. 26, 2004 |
| 6804262 |
Method and apparatus for channel determination through power measurements |
Oct. 12, 2004 |
| 6791952 |
Asymmetric data access scheme |
Sep. 14, 2004 |
| 6771591 |
Method and system for processing orthogonal frequency division multiplexed signals |
Aug. 3, 2004 |
| H2106 |
Method and apparatus for multiple access communication |
Jul. 6, 2004 |
| 6728294 |
Radio communication system |
Apr. 27, 2004 |
| 6707798 |
Method and apparatus for reducing co-channel interference in a frame-synchronized wireless communication system |
Mar. 16, 2004 |
| 6674728 |
Method and device for utilizing frequency bandwidth in a wireless communication system with asymmetrical traffic load |
Jan. 6, 2004 |
| 6650617 |
Reduced complexity FFT window synchronization for an orthogonal frequency division multiplexing system |
Nov. 18, 2003 |
| 6611507 |
System and method for effecting information transmission and soft handoff between frequency division duplex and time division duplex communications systems |
Aug. 26, 2003 |
| 6560209 |
Method for frequency division duplex communications |
May. 6, 2003 |
| 6556830 |
Coverage area sectorization in time division multiple access/frequency-time division duplex communications systems |
Apr. 29, 2003 |
| 6553004 |
Method and device to reduce the peak factor of digital radio or television broadcasting signals |
Apr. 22, 2003 |
| 6507622 |
Communication systems, sender and receiver |
Jan. 14, 2003 |
| 6501771 |
Delay compensation |
Dec. 31, 2002 |
| 6477161 |
Downlink beamforming approach for frequency division duplex cellular systems |
Nov. 5, 2002 |
| 6345049 |
Network system and communication device |
Feb. 5, 2002 |
| 6333920 |
Frequency division duplexing system which accommodates symmetric and asymmetric channels |
Dec. 25, 2001 |
| 6314113 |
Method of determining a symbol transmission format in a transmission system and system |
Nov. 6, 2001 |
| 6310863 |
Dual-band data communication device |
Oct. 30, 2001 |
| 6269086 |
Arrangement and method for selectable time/frequency division multiplex communication |
Jul. 31, 2001 |
| 6226274 |
Method and apparatus for multiple access communication |
May. 1, 2001 |
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