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Class Information
Number: 375/143
Name: Pulse or digital communications > Spread spectrum > Direct sequence > End-to-end transmission system > Having matched-filter-type receiver
Description: Subject matter in which transmitted signals are recovered using a structure or method that is designed to pass only the specific transmitted signal (i.e., spreading code), that is matched to the spreading code used to transmit the signal.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7609751 |
Method and apparatus to initiate communications between an unknown node and an existing secure network |
Oct. 27, 2009 |
| 7602834 |
System and method for determining a fine frequency offset of a received signal |
Oct. 13, 2009 |
| 7602835 |
Multi-rate spread spectrum composite code |
Oct. 13, 2009 |
| 7590164 |
Method and apparatus for efficient use of communication resources in a communication system |
Sep. 15, 2009 |
| 7590396 |
Multimode communication device with shared signal path programmable filter |
Sep. 15, 2009 |
| 7580470 |
Apparatus for recovering E8-VSB map information and method thereof |
Aug. 25, 2009 |
| 7577168 |
Method for detecting symbol synchronization and apparatus thereof |
Aug. 18, 2009 |
| 7567533 |
Packet detection system, packet detection device, and method for receiving packets |
Jul. 28, 2009 |
| 7564891 |
Method of using long cellized codes in a joint detection system |
Jul. 21, 2009 |
| 7545854 |
Doppler corrected spread spectrum matched filter |
Jun. 9, 2009 |
| 7526010 |
Doped multi-rate spread spectrum composite code |
Apr. 28, 2009 |
| 7515653 |
Digital broadcasting receiver, driving method thereof, and self-diagnosis method thereof |
Apr. 7, 2009 |
| 7508865 |
System and method for tracking an ultrawide bandwidth signal |
Mar. 24, 2009 |
| 7508860 |
Pulse signal generator for ultra-wideband radio transception and radio transceiver having the same |
Mar. 24, 2009 |
| 7508796 |
Wireless base station, wireless frames synchronization detection method used therein, and recording medium on which program therefor is recorded |
Mar. 24, 2009 |
| 7499509 |
Receiver for compensating nonlinearly distorted multicarrier signals |
Mar. 3, 2009 |
| 7492808 |
Decoding method using adaptive step-size algorithm for a space-time coded DS-CDMA system |
Feb. 17, 2009 |
| 7492807 |
Pseudo-random bit sequence (PRBS) synchronization for interconnects with dual-tap scrambling devices and methods |
Feb. 17, 2009 |
| 7489721 |
Simplified block linear equalizer with block space time transmit diversity |
Feb. 10, 2009 |
| 7474688 |
System and method for detecting multiple direct sequence spread spectrum signals using a multi-mode searcher |
Jan. 6, 2009 |
| 7454209 |
Adapting operation of a communication filter based on mobile unit velocity |
Nov. 18, 2008 |
| 7447259 |
System for direct acquisition of received signals |
Nov. 4, 2008 |
| 7447254 |
Self-correlating pseudo-noise pairing |
Nov. 4, 2008 |
| 7424050 |
Matched filter circuit and correlation calculation method |
Sep. 9, 2008 |
| 7418065 |
Multicarrier receivers and methods for detecting cyclic prefixes having unknown lengths |
Aug. 26, 2008 |
| 7412014 |
Timing-adjusting method and apparatus, and diversity receiving method and apparatus |
Aug. 12, 2008 |
| 7412018 |
Rapid acquisition synchronization sequences for direct sequence spread spectrum systems using code time offsets |
Aug. 12, 2008 |
| 7406113 |
Integrated circuit for code acquisition |
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 |
| 7394873 |
Adaptive channel estimation for orthogonal frequency division multiplexing systems or the like |
Jul. 1, 2008 |
| 7388899 |
Spreading code structure for ultra wide band communications |
Jun. 17, 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 |
| 7359425 |
Ultra-wideband transmitter and receiver, and ultra-wideband wireless communication method |
Apr. 15, 2008 |
| 7356094 |
Digital broadcast receiving apparatus |
Apr. 8, 2008 |
| 7349498 |
Method and system for data and edge detection with correlation tables |
Mar. 25, 2008 |
| 7327780 |
Wireless communications systems and methods for multiple operating system multiple user detection |
Feb. 5, 2008 |
| 7324585 |
System and method for performing symbol boundary-aligned search of direct sequence spread spectrum signals |
Jan. 29, 2008 |
| 7317753 |
Dynamic matched filter bank and its application in multi-channel spread spectrum communication systems |
Jan. 8, 2008 |
| 7315567 |
Method and apparatus for partial interference cancellation in a communication system |
Jan. 1, 2008 |
| 7301993 |
Channel estimation in a spread spectrum receiver |
Nov. 27, 2007 |
| 7295624 |
Wireless system with hybrid automatic retransmission request in interference-limited communications |
Nov. 13, 2007 |
| 7280624 |
Method and apparatus for noise threshold calculation in wireless communication |
Oct. 9, 2007 |
| 7277470 |
Multi-user detection in an MC-CDMA telecommunication system |
Oct. 2, 2007 |
| 7274729 |
Spread spectrum communication device and communication system |
Sep. 25, 2007 |
| 7224716 |
Communication methods and apparatus employing spread spectrum techniques and doppler-tolerant polyphase codes |
May. 29, 2007 |
| 7224721 |
System for direct acquisition of received signals |
May. 29, 2007 |
| 7218665 |
Deferred decorrelating decision-feedback detector for supersaturated communications |
May. 15, 2007 |
| 7200164 |
Packet-based multiplication-free CCK demodulator with a fast multipath interference cipher |
Apr. 3, 2007 |
| 7194021 |
Digital matched filter |
Mar. 20, 2007 |
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