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Class Information
Number: 375/142
Name: Pulse or digital communications > Spread spectrum > Direct sequence > End-to-end transmission system > Having correlation-type receiver
Description: Subject matter in which transmitted signals are recovered using a structure or method that compares a transmitted spreading code sequence with a local spreading code sequence, generally by multiplicative means.










Patents under this class:
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Patent Number Title Of Patent Date Issued
7457350 Communications systems and methods Nov. 25, 2008
7453920 Code synchronization in CDMA satellite wireless communications system using uplink channel detection Nov. 18, 2008
7447259 System for direct acquisition of received signals Nov. 4, 2008
7443938 Method and system for synchronization between transmitter and receiver in a communication system Oct. 28, 2008
7436878 Method and apparatus for efficient carrier bin search for a composite spreading code Oct. 14, 2008
7433391 Spread-spectrum receiver with fast M-sequence transform Oct. 7, 2008
7433390 Received communication signal processing methods and components for wireless communication equipment Oct. 7, 2008
7433384 System and method for received signal prediction in wireless communications system Oct. 7, 2008
7433383 Techniques to detect radar in a communication signal Oct. 7, 2008
7430233 Spread-spectrum demodulator Sep. 30, 2008
7428259 Efficient and flexible GPS receiver baseband architecture Sep. 23, 2008
7428262 Channel estimation in a rake receiver of a CDMA communication system Sep. 23, 2008
7428277 Method of determining an acquisition indicator bit in a communication system Sep. 23, 2008
7424047 Receiver based method for de-spreading of spread spectrum signal Sep. 9, 2008
7424277 Device, system and method of wireless signal detection Sep. 9, 2008
7420506 Cumulant-based discriminator for GNSS code alignment Sep. 2, 2008
7418029 Method and system for fast acquisition of ultra-wideband signals Aug. 26, 2008
7411997 Apparatus and method for filtering a spectrum spread communication Aug. 12, 2008
7406113 Integrated circuit for code acquisition Jul. 29, 2008
7406114 Pseudo-noise correlator for GPS spread-spectrum receiver Jul. 29, 2008
7406120 Transmission channel impulse response estimation using fast algorithms Jul. 29, 2008
7403558 Integrated circuit for code acquisition Jul. 22, 2008
7397842 Method and apparatus for combining weight computation in a DS-CDMA RAKE receiver Jul. 8, 2008
7391803 Interference suppression in a receiver during at least one of idle state and access state operation Jun. 24, 2008
7388899 Spreading code structure for ultra wide band communications Jun. 17, 2008
7386029 Reception device and reception method Jun. 10, 2008
7386030 Automatic threshold selection method for improving the detection of a wireless signal Jun. 10, 2008
7386035 Method of compensating for energy loss and eliminating inter-symbol interference and inter-chip interference and rake receiver for WLAN adopting the same Jun. 10, 2008
7379748 Method for speeding up synchronization by having a search frequency list comprising a limited number of search frequencies May. 27, 2008
7376174 Rake receiver architecture for an ultra-wideband (UWB) receiver May. 20, 2008
7372895 Method of and system for delay estimation with minimized finger allocation May. 13, 2008
7369600 Burst communications apparatus and method using tapped delay lines May. 6, 2008
7369577 Code group acquisition procedure for a UMTS-FDD receiver May. 6, 2008
7366227 Chip-to-symbol receiver despreader architectures and methods for despreading spread spectrum signals Apr. 29, 2008
7362793 Base station having a set of phased array antennas Apr. 22, 2008
7359429 Support of the determination of a correlation Apr. 15, 2008
7359430 CDMA multicode channel processing Apr. 15, 2008
7359459 System and method for low power clear channel assessment Apr. 15, 2008
7356094 Digital broadcast receiving apparatus Apr. 8, 2008
RE40231 High data spread spectrum transceiver and associated methods Apr. 8, 2008
7352795 System and method for communicating data using constant amplitude waveform with hybrid orthogonal and MSK or GMSK modulation Apr. 1, 2008
7352794 Method and arrangement for use in a single user detector for a CDMA multi-path system Apr. 1, 2008
7349498 Method and system for data and edge detection with correlation tables Mar. 25, 2008
7339976 Method and apparatus for reducing power consumption within a wireless receiver Mar. 4, 2008
7336699 Method and apparatus for code identification in wireless applications Feb. 26, 2008
7336739 Cross-correlation signal detector Feb. 26, 2008
7333529 Apparatus and method for measurement of communication quality in CDMA system Feb. 19, 2008
7333534 Apparatus and method for performing fast acquisition of PN sequences by transferring distributed samples Feb. 19, 2008
7330522 Complementary code keying (CCK) sequentially decoding apparatus and process thereof Feb. 12, 2008
7327780 Wireless communications systems and methods for multiple operating system multiple user detection Feb. 5, 2008

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