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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:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
7620098 Enhanced method for demodulating constant-amplitude multi-code biorthogonal modulation signals Nov. 17, 2009
7599309 Method and apparatus for managing cell-by-cell demodulation timings of a user equipment in an asynchronous mobile telecommunication system Oct. 6, 2009
7596082 Method and apparatus for Walsh space assignment in a communication system Sep. 29, 2009
7596105 User equipment for synchronizing to a TDD base station Sep. 29, 2009
7590045 Apparatus and method for transmitting fast feedback information in a wireless communication system Sep. 15, 2009
7586835 Apparatus for generating 2D spreading code and method for the same Sep. 8, 2009
7586836 Apparatus and method for transmitting/receiving pilot signals in a communication system using an orthogonal frequency division multiplexing scheme Sep. 8, 2009
7583586 Apparatus and method for transmitting/receiving pilot signal in communication system using OFDM scheme Sep. 1, 2009
7583630 Method and system for providing mobile station control of data transmission rates in a wireless network Sep. 1, 2009
7580400 Apparatus and method for generating preamble signal for cell identification in an orthogonal frequency division multiplexing system Aug. 25, 2009
7580451 Decoding of Walsh codes Aug. 25, 2009
7577216 Guard interval and FFT mode detector in DVB-T receiver Aug. 18, 2009
7577120 Allocation of power and channelization codes for data transfers Aug. 18, 2009
7573805 Data transmission and reception method and apparatus Aug. 11, 2009
7555034 Apparatus and method for detecting timing error based on cyclic correlation Jun. 30, 2009
7551582 System and method for optimizing walsh code assignments Jun. 23, 2009
7548509 Acknowledging broadcast transmissions Jun. 16, 2009
7542408 Method of reducing inter-subcarrier interference in multicarrier communication systems and receiver using it Jun. 2, 2009
7532563 Mechanism to improve quality of channel estimates in OFDM transmissions May. 12, 2009
7519123 Spectral shaping for multiband OFDM transmitters with time spreading Apr. 14, 2009
7505440 Method and apparatus for orthogonally overlaying variable chip rate spread spectrum signals Mar. 17, 2009
7499391 Apparatus and method for allocating walsh codes to mobile stations in an adaptive antenna array wireless network Mar. 3, 2009
7496132 Pilot signals for synchronization and/or channel estimation Feb. 24, 2009
7489664 Method and apparatus for transmitting and receiving orthogonal code index information in a mobile communication system Feb. 10, 2009
7489621 Adaptive puncturing technique for multicarrier systems Feb. 10, 2009
7483490 Method for transmitting wideband signals via a communication system adapted for narrow-band signal transmission Jan. 27, 2009
7480279 Apparatus and method for transmitting a control message on a packet data control channel in a mobile communication system supporting a packet data service Jan. 20, 2009
7471622 Method of transferring and/or receiving data in communication system and apparatus thereof Dec. 30, 2008
7471932 System and method for embedding OFDM in CDMA systems Dec. 30, 2008
7460506 Apparatus and method for transmitting and receiving a cell identification code in a mobile communication system Dec. 2, 2008
RE40518 Channel assignment method for a base station in a mobile communication system Sep. 23, 2008
7426400 Wireless telecommunications overlay system Sep. 16, 2008
7424039 Method and apparatus for processing multiple common frequency signals through a single cable Sep. 9, 2008
7411899 Apparatus and method for allocating walsh codes to access terminals in an adaptive antenna array CDMA wireless network Aug. 12, 2008
7400614 Methods and apparatus for downlink diversity in CDMA using Walsh codes Jul. 15, 2008
7394793 Method and apparatus for generating preambles in a broadband wireless communication system using multiple antennas Jul. 1, 2008
7376076 Method for transferring and/or receiving data in communication system and apparatus thereof May. 20, 2008
7369486 Apparatus and method for increasing channel capacity of a mobile communication system May. 6, 2008
7352713 Multiplexed signal quality display system, method, and program, and storage medium storing the program Apr. 1, 2008
7349421 Method and apparatus for assigning spreading codes Mar. 25, 2008
7346038 Method for generating 2D OVSF codes in multicarrier DS-CDMA systems Mar. 18, 2008
7333469 Method for deep paging Feb. 19, 2008
7324436 Determining useable combinations of variables for transmitting a subpacket of an encoder packet Jan. 29, 2008
7321610 Method and system of interference cancellation in multi-cell CDMA systems Jan. 22, 2008
7308019 System and method for Fast Walsh Transform processing in a multi-coded signal environment Dec. 11, 2007
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

1 2 3 4 5


 
 
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