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Class Information
Number: 370/209
Name: Multiplex communications > Generalized orthogonal or special mathematical techniques > Particular set of orthogonal functions > Walsh functions
Description: Subject matter wherein the set of orthogonal functions consist of Walsh functions.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7302025 |
Efficient joint equalization/decoding method and apparatus for Complementary-Code-Keying based systems |
Nov. 27, 2007 |
| 7302020 |
Encoded multi-access bus system and method |
Nov. 27, 2007 |
| 7301892 |
Walsh mask test in CDMA cellular wireless communication systems with packet data service |
Nov. 27, 2007 |
| 7277382 |
Hybrid walsh encoder and decoder for CDMA |
Oct. 2, 2007 |
| 7272110 |
Method of allocating walsh code resource |
Sep. 18, 2007 |
| 7248698 |
System for generating pseudorandom sequences |
Jul. 24, 2007 |
| 7239632 |
Method and apparatus for converging local area and wide area wireless data networks |
Jul. 3, 2007 |
| 7239604 |
OVSF code system and methods for CDMA stations |
Jul. 3, 2007 |
| 7236512 |
Code channel allocations in a wireless communications system |
Jun. 26, 2007 |
| 7227836 |
Rate control device and method for CDMA communication system |
Jun. 5, 2007 |
| 7218617 |
Transmission method of downlink pilot channel in CDMA mobile communication system, and CDMA mobile communication system |
May. 15, 2007 |
| 7200179 |
Data transmission method, data reception method, data transport method, data transmission device, data reception device, data transfer system, and communication terminal |
Apr. 3, 2007 |
| 7173900 |
Method and apparatus for chip generation of a chip sequence |
Feb. 6, 2007 |
| 7154846 |
Shared channel structure, ARQ systems and methods |
Dec. 26, 2006 |
| 7116698 |
Generator of repetitive sets of spread spectrum sequences |
Oct. 3, 2006 |
| 7102994 |
Synchronization signal used to identify code groups |
Sep. 5, 2006 |
| 7095710 |
Decoding using walsh space information |
Aug. 22, 2006 |
| 7088267 |
Duplex-system digital-data transmitting method and apparatus |
Aug. 8, 2006 |
| 7088673 |
Dynamically-scalable system and method for multiple user access utilzing multi-bit and multi-code orthogonal multiplexing |
Aug. 8, 2006 |
| 7079592 |
Complementary code keying demodulation system |
Jul. 18, 2006 |
| 7075885 |
Method for assigning variable-length walsh codes for code division multiple access communications systems |
Jul. 11, 2006 |
| 7061965 |
Method and apparatus for assigning Walsh codes |
Jun. 13, 2006 |
| 7058151 |
Apparatus and method for achieving symbol timing and frequency synchronization to orthogonal frequency division multiplexing signal |
Jun. 6, 2006 |
| 7035663 |
Wireless telecommunications overlay system |
Apr. 25, 2006 |
| 7027494 |
Method for generating orthogonal spread codes in mobile communication system |
Apr. 11, 2006 |
| 7023872 |
Method and apparatus for assigning spreading codes |
Apr. 4, 2006 |
| 7020175 |
MMSE reception of DS-CDMA with transmit diversity |
Mar. 28, 2006 |
| 7012886 |
Walsh code allocation/de-allocation system |
Mar. 14, 2006 |
| 7002903 |
Automatic verification of Walsh code orthogonality |
Feb. 21, 2006 |
| 7002901 |
Apparatus and method for transmitting and receiving data in a CDMA communication system |
Feb. 21, 2006 |
| 7002902 |
Method and system for economical beam forming in a radio communication system |
Feb. 21, 2006 |
| 6999756 |
Apparatus for processing call of wireless LAN using callback function and method thereof |
Feb. 14, 2006 |
| 6996056 |
Method and apparatus for orthogonal code management in CDMA systems using smart antenna technology |
Feb. 7, 2006 |
| 6987798 |
System and method for demodulating multiple Walsh codes using a chip combiner |
Jan. 17, 2006 |
| 6975584 |
Communication system method and apparatus |
Dec. 13, 2005 |
| 6973062 |
Method for controlling call access of terminal in mobile communication system |
Dec. 6, 2005 |
| 6965633 |
Pilot synchronization channel structure for CDMA mobile communication system |
Nov. 15, 2005 |
| 6965557 |
Interleaver memory access apparatus and method of CDMA system |
Nov. 15, 2005 |
| 6961304 |
Dynamic reassignment of code space among multiple modes of operation |
Nov. 1, 2005 |
| 6956815 |
Method and apparatus using pseudo-inverses of linear transformations in multi-carrier modulation receivers and transceivers |
Oct. 18, 2005 |
| 6937559 |
Apparatus and method for allocating Walsh codes in CDMA communication system having variable rate channel structure |
Aug. 30, 2005 |
| 6922389 |
Method and apparatus for reducing transmission power in a high data rate system |
Jul. 26, 2005 |
| 6904012 |
Apparatus and method for allocating forward common channels in CDMA communication system |
Jun. 7, 2005 |
| 6882619 |
Interference suppressing OFDM method for wireless communications |
Apr. 19, 2005 |
| 6882604 |
Method and apparatus for utilizing modulation codes that produce maximized sample timing information |
Apr. 19, 2005 |
| 6870825 |
Pilot signal transmission in a multi-transmit antenna wireless communication system |
Mar. 22, 2005 |
| 6842477 |
High-data-rate supplemental channel for CDMA telecommunications system |
Jan. 11, 2005 |
| 6839336 |
Acknowledging broadcast transmissions |
Jan. 4, 2005 |
| 6829289 |
Application of a pseudo-randomly shuffled hadamard function in a wireless CDMA system |
Dec. 7, 2004 |
| 6798737 |
Use of Walsh-Hadamard transform for forward link multiuser detection in CDMA systems |
Sep. 28, 2004 |
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