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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:
| Patent Number |
Title Of Patent |
Date Issued |
| 7577188 |
Physical layer and MAC enhancements using complex sequences on a wireless channel |
Aug. 18, 2009 |
| 7570577 |
Apparatus, method, and program for detecting communication parameter |
Aug. 4, 2009 |
| 7558312 |
Parallel correlator implementation using block integration for spread-spectrum communication |
Jul. 7, 2009 |
| 7558346 |
Symbol detector based on frequency offset compensation in ZigBee system and symbol detecting method thereof |
Jul. 7, 2009 |
| 7551692 |
Frequency recovery apparatus and method for use in digital broadcast receiver |
Jun. 23, 2009 |
| 7551898 |
Channel quality feedback mechanism and method |
Jun. 23, 2009 |
| 7548576 |
Self organization of wireless sensor networks using ultra-wideband radios |
Jun. 16, 2009 |
| 7545854 |
Doppler corrected spread spectrum matched filter |
Jun. 9, 2009 |
| 7539239 |
Apparatus for rapid PN code acquisition |
May. 26, 2009 |
| 7532686 |
Correlator and receiving apparatus utilizing the same |
May. 12, 2009 |
| 7529290 |
Radar apparatus |
May. 5, 2009 |
| 7526015 |
Parallel correlator implementation using hybrid correlation in spread-spectrum communication |
Apr. 28, 2009 |
| 7526014 |
Correlator for spread spectrum receiver |
Apr. 28, 2009 |
| 7522654 |
Finger using mixed weighting, and its application for demodulation apparatus and method |
Apr. 21, 2009 |
| 7522556 |
Signal recognition in an on-frequency repeater |
Apr. 21, 2009 |
| 7523160 |
Information provision exchange service system and method, program for implementing the method, and storage medium storing the program |
Apr. 21, 2009 |
| 7519101 |
Method and apparatus for using empty time slots for spread spectrum encoding |
Apr. 14, 2009 |
| 7515653 |
Digital broadcasting receiver, driving method thereof, and self-diagnosis method thereof |
Apr. 7, 2009 |
| 7515558 |
Code division multiple access communication system, and a base station control device and a base station thereof |
Apr. 7, 2009 |
| 7508860 |
Pulse signal generator for ultra-wideband radio transception and radio transceiver having the same |
Mar. 24, 2009 |
| 7508865 |
System and method for tracking an ultrawide bandwidth signal |
Mar. 24, 2009 |
| 7502312 |
Fourier-transform based linear equalization for CDMA downlink |
Mar. 10, 2009 |
| 7502431 |
Method and apparatus for estimating response characteristic, and receiving method and receiver utilizing the same |
Mar. 10, 2009 |
| 7499485 |
Method and apparatus for detecting GPS data-bit boundaries and detecting GPS satellite-signal reception |
Mar. 3, 2009 |
| 7499509 |
Receiver for compensating nonlinearly distorted multicarrier signals |
Mar. 3, 2009 |
| 7499483 |
Receiver capable of enhancing receiving efficiency in a code division multiple access communication system |
Mar. 3, 2009 |
| 7496129 |
Method and apparatus for space division multiple access receiver |
Feb. 24, 2009 |
| 7492807 |
Pseudo-random bit sequence (PRBS) synchronization for interconnects with dual-tap scrambling devices and methods |
Feb. 17, 2009 |
| 7492808 |
Decoding method using adaptive step-size algorithm for a space-time coded DS-CDMA system |
Feb. 17, 2009 |
| 7492810 |
Method and apparatus for segmented code correlation |
Feb. 17, 2009 |
| 7486716 |
Method and apparatus for using chip sample correlations in one or more received signal processing operations |
Feb. 3, 2009 |
| 7480325 |
Signal receiver for integrating and combining integrations in alternating time segments for signal acquisition at low signal strength |
Jan. 20, 2009 |
| 7477680 |
De-spreader operative with selectable operational clock for spread spectrum communication and a method for the same |
Jan. 13, 2009 |
| 7474688 |
System and method for detecting multiple direct sequence spread spectrum signals using a multi-mode searcher |
Jan. 6, 2009 |
| 7474687 |
Staged correlator |
Jan. 6, 2009 |
| 7471652 |
Real-time RF/IF signature trigger |
Dec. 30, 2008 |
| 7466769 |
Method and apparatus of cross-correlation |
Dec. 16, 2008 |
| 7460621 |
Detection |
Dec. 2, 2008 |
| 7460622 |
Communications systems and methods |
Dec. 2, 2008 |
| 7460623 |
Digital two-stage automatic gain control |
Dec. 2, 2008 |
| 7457350 |
Communications systems and methods |
Nov. 25, 2008 |
| 7457347 |
Method and apparatus for estimating and correcting baseband frequency error in a receiver |
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 |
| 7433383 |
Techniques to detect radar in a communication signal |
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 |
| 7433391 |
Spread-spectrum receiver with fast M-sequence transform |
Oct. 7, 2008 |
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