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Class Information
Number: 375/141
Name: Pulse or digital communications > Spread spectrum > Direct sequence > End-to-end transmission system
Description: Subject matter comprising at least two stations where signals are transmitted and received between stations.

Sub-classes under this class:

Class Number Class Name Patents
375/142 Having correlation-type receiver 894
375/143 Having matched-filter-type receiver 319
375/144 Having multi-receiver or interference cancellation 659
375/145 Having specific signaling for code synchronization 504

Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Patent Number Title Of Patent Date Issued
7636381 System and method for distributed input-distributed output wireless communications Dec. 22, 2009
7633997 Digital data exchange device in a CDMA system Dec. 15, 2009
7633995 System and method for receiving spread spectrum encoded bursts using a common spreading code Dec. 15, 2009
7633994 System and method for distributed input-distributed output wireless communications Dec. 15, 2009
7627061 Communication breaking device and method thereof Dec. 1, 2009
RE40997 Spread spectrum communication transmitter and receiver, and CDMA mobile communication system and method Nov. 24, 2009
RE40986 Channel simulator for mobile systems Nov. 17, 2009
7620095 RF modem utilizing saw device with pulse shaping and programmable frequency synthesizer Nov. 17, 2009
7620005 Method and apparatus for code assignment in a spread spectrum wireless communication system Nov. 17, 2009
7616677 Downlink power control with limit to dynamic range using detection of downlink transmit power Nov. 10, 2009
7616965 Method and apparatus for calculating a device location Nov. 10, 2009
7613226 Method and apparatus for transferring signals in a wireless communication system Nov. 3, 2009
7613225 System and method for secure communication of collected amphibious data Nov. 3, 2009
7613158 Method of quadrature spreading Nov. 3, 2009
7609748 Method, system and apparatus for maximizing a jammer's time-on-target and power-on-target Oct. 27, 2009
7609749 Method and apparatus for generating non-recursive variable rate orthogonal spreading codes Oct. 27, 2009
7609750 Segment-wise channel equalization based data estimation Oct. 27, 2009
7609751 Method and apparatus to initiate communications between an unknown node and an existing secure network Oct. 27, 2009
7606567 Channel allocation for burst transmission to a diversity of satellites Oct. 20, 2009
7599420 System and method for distributed input distributed output wireless communications Oct. 6, 2009
7599665 Selection of radio resources in a wireless communication device Oct. 6, 2009
7596166 Integrated circuit device including a spectrum spread clock generator, method for controlling the device, and ink-jet recording apparatus including the device Sep. 29, 2009
7586972 Code division multiple access enhanced capacity system Sep. 8, 2009
7586977 Transmission power control method, mobile station, and radio network controller Sep. 8, 2009
7583745 Exploiting selection diversity in communications systems with non-orthonormal matrix and vector modulation Sep. 1, 2009
7580400 Apparatus and method for generating preamble signal for cell identification in an orthogonal frequency division multiplexing system Aug. 25, 2009
7577180 Method and system for maintaining synchronization in low-power mode over a frequency hopping radio link Aug. 18, 2009
7555028 Method and system for defining additional spread spectrum channels within a coverage area of an existing wireless network Jun. 30, 2009
7551898 Channel quality feedback mechanism and method Jun. 23, 2009
7539235 Matched filter for scalable spread spectrum communications systems May. 26, 2009
7535822 Synchronization of remote units for a communication network May. 19, 2009
7535950 Blind selected mapping techniques for crest factor reduction of forward link CDMA signals May. 19, 2009
7526011 Radio communication system, transmitter, receiver and radio communicating method Apr. 28, 2009
7519104 Application of spreading codes to signals Apr. 14, 2009
7519103 Pre-phase error correction transmitter Apr. 14, 2009
7519102 Method of assignment and transmission of spread signals in direct sequence spread spectrum CDMA mobile communication system, mobile communication system, and transmitter, receiver and transmit Apr. 14, 2009
7519101 Method and apparatus for using empty time slots for spread spectrum encoding Apr. 14, 2009
7515627 System and method for ultra-wideband (UWB) communication transceiver Apr. 7, 2009
7512861 Method for determining identity of simultaneous events and applications to image sensing and A/D conversion Mar. 31, 2009
7508860 Pulse signal generator for ultra-wideband radio transception and radio transceiver having the same Mar. 24, 2009
7508861 RACH ramp-up acknowledgement Mar. 24, 2009
7496145 Method and apparatus for reducing transmitter peak power requirements with orthogonal code noise shaping Feb. 24, 2009
7480236 Multipoint-to-point communication using orthgonal frequency division multiplexing and identification codes Jan. 20, 2009
7480266 Interference adaptation apparatus, systems, and methods Jan. 20, 2009
7474688 System and method for detecting multiple direct sequence spread spectrum signals using a multi-mode searcher Jan. 6, 2009
7471657 Method and apparatus for processing a punctured pilot channel Dec. 30, 2008
7471736 Frequency based modulator compensation Dec. 30, 2008
7469124 Rate adaptive satellite communications Dec. 23, 2008
7463700 Code division multiple access wireless system with closed loop mode using ninety degree phase rotation and beamformer verification Dec. 9, 2008
7460580 Segment-wise channel equalization based data estimation Dec. 2, 2008

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

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