Source: http://www.google.com/patents/US8218602?dq=6,826,762
Timestamp: 2015-08-03 09:04:04
Document Index: 421683352

Matched Legal Cases: ['Application No. 03770434', 'Application No. 03770434', 'Application No. 03770434', 'Application No. 03770434', 'Application No. 03770434', 'Application No. 03770434', 'Application No. 10', 'Application No. 03770434', 'Application No. 03770434']

Patent US8218602 - Method and apparatus for selectively applying interference cancellation in ... - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsThe present invention is directed to the selective provision of interference canceled signal streams to demodulating fingers in a communication receiver. According to the present invention, potential interferer signal paths are identified. Signal streams having one or more potential interferer signals...http://www.google.com/patents/US8218602?utm_source=gb-gplus-sharePatent US8218602 - Method and apparatus for selectively applying interference cancellation in spread spectrum systemsAdvanced Patent SearchPublication numberUS8218602 B2Publication typeGrantApplication numberUS 12/871,748Publication dateJul 10, 2012Filing dateAug 30, 2010Priority dateSep 23, 2002Also published asCN1703842A, CN100423466C, EP1550233A1, EP1550233A4, EP1550233B1, US7787518, US20070183483, US20100323624, WO2004028022A1Publication number12871748, 871748, US 8218602 B2, US 8218602B2, US-B2-8218602, US8218602 B2, US8218602B2InventorsAnand Narayan, Eric S. Olson, Prashant JainOriginal AssigneeRambus Inc.Export CitationBiBTeX, EndNote, RefManPatent Citations (101), Non-Patent Citations (52), Classifications (11), Legal Events (1) External Links: USPTO, USPTO Assignment, EspacenetMethod and apparatus for selectively applying interference cancellation in spread spectrum systems
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS3742201Feb 22, 1971Jun 26, 1973Raytheon CoTransformer system for orthogonal digital waveformsUS4088955Apr 7, 1975May 9, 1978Baghdady Elie JInterference rejection techniqueUS4309769Feb 25, 1980Jan 5, 1982Harris CorporationMethod and apparatus for processing spread spectrum signalsUS4359738Aug 9, 1977Nov 16, 1982The United States Of America As Represented By The Secretary Of The NavyClutter and multipath suppressing sidelobe canceller antenna systemUS4601046May 15, 1984Jul 15, 1986Halpern Peter HSystem for transmitting data through a troposcatter mediumUS4665401Oct 10, 1980May 12, 1987Sperry CorporationMillimeter wave length guidance systemUS4670885Feb 26, 1985Jun 2, 1987Signatron, Inc.Spread spectrum adaptive antenna interference cancellerUS4713794Feb 22, 1982Dec 15, 1987Raytheon CompanyDigital memory systemUS4780885Jul 15, 1985Oct 25, 1988Paul Haim DFrequency management systemUS4856025Dec 29, 1986Aug 8, 1989Matsushita Electric Industrial Co., Ltd.Method of digital signal transmissionUS4893316Jul 24, 1986Jan 9, 1990Motorola, Inc.Digital radio frequency receiverUS4922506Jan 11, 1988May 1, 1990Sicom CorporationCompensating for distortion in a communication channelUS4933639Feb 13, 1989Jun 12, 1990The Board Of Regents, The University Of Texas SystemAxis translator for magnetic resonance imagingUS4965732Nov 2, 1987Oct 23, 1990The Board Of Trustees Of The Leland Stanford Junior UniversityMethods and arrangements for signal reception and parameter estimationUS5017929Sep 6, 1989May 21, 1991Hughes Aircraft CompanyAngle of arrival measuring techniqueUS5099493Aug 27, 1990Mar 24, 1992Zeger-Abrams IncorporatedMultiple signal receiver for direct sequence, code division multiple access, spread spectrum signalsUS5105435Dec 21, 1990Apr 14, 1992Motorola, Inc.Method and apparatus for cancelling spread-spectrum noiseUS5109390Nov 7, 1989Apr 28, 1992Qualcomm IncorporatedDiversity receiver in a cdma cellular telephone systemUS5119401Nov 19, 1990Jun 2, 1992Nec CorporationDecision feedback equalizer including forward part whose signal reference point is shiftable depending on channel responseUS5136296Jan 2, 1991Aug 4, 1992Max-Planck-Gesellschaft Zur Foerderung Der Wissenschaften E.V.Oblique spaced antenna method and system for measuring atmospheric wind fieldsUS5151919Dec 17, 1990Sep 29, 1992Ericsson-Ge Mobile Communications Holding Inc.Cdma subtractive demodulationUS5218359Jul 28, 1992Jun 8, 1993Kokusai Denshin Denwa Co., Ltd.Adaptive array antenna systemUS5218619Aug 2, 1991Jun 8, 1993Ericsson Ge Mobile Communications Holding, Inc.CDMA subtractive demodulationUS5220687May 28, 1991Jun 15, 1993Pioneer Electronic CorporationRadio receiver having switch for switching between a wide filter and a narrow filterUS5224122Jun 29, 1992Jun 29, 1993Motorola, Inc.Method and apparatus for canceling spread-spectrum noiseUS5237586Mar 25, 1992Aug 17, 1993Ericsson-Ge Mobile Communications Holding, Inc.Rake receiver with selective ray combiningUS5263191Dec 11, 1991Nov 16, 1993Westinghouse Electric Corp.Method and circuit for processing and filtering signalsUS5280472Mar 9, 1992Jan 18, 1994Qualcomm IncorporatedCDMA microcellular telephone system and distributed antenna system thereforUS5305349Apr 29, 1993Apr 19, 1994Ericsson Ge Mobile Communications Inc.Quantized coherent rake receiverUS5325394Mar 3, 1993Jun 28, 1994Motorola, Inc.Method and apparatus for canceling spread-spectrum noiseUS5343493Mar 16, 1993Aug 30, 1994Hughes Aircraft CompanyPersonal assistance system and method for use with a cellular communication systemUS5343496Sep 24, 1993Aug 30, 1994Bell Communications Research, Inc.Interference suppression in CDMA systemsUS5347535Mar 3, 1993Sep 13, 1994Kokusai Denshin Denwa Co., Ltd.CDMA communication systemUS5353302Feb 3, 1993Oct 4, 1994At&T Bell LaboratoriesSignal despreader for CDMA systemsUS5377183Apr 11, 1994Dec 27, 1994Ericsson-Ge Mobile Communications Inc.Calling channel in CDMA communications systemUS5386202Nov 3, 1993Jan 31, 1995Sicom, Inc.Data communication modulation with managed intersymbol interferenceUS5390207Mar 24, 1994Feb 14, 1995Novatel Communications Ltd.Pseudorandom noise ranging receiver which compensates for multipath distortion by dynamically adjusting the time delay spacing between early and late correlatorsUS5394110Feb 2, 1994Feb 28, 1995Nec CorporationDemodulation system having adaptive matched filter and decision feedback equalizerUS5396256Oct 27, 1993Mar 7, 1995Atr Optical & Radio Communications Research LaboratoriesApparatus for controlling array antenna comprising a plurality of antenna elements and method thereforUS5437055Jun 3, 1993Jul 25, 1995Qualcomm IncorporatedAntenna system for multipath diversity in an indoor microcellular communication systemUS5440265Sep 14, 1994Aug 8, 1995Sicom, Inc.Differential/coherent digital demodulator operating at multiple symbol pointsUS5448600Aug 12, 1994Sep 5, 1995Matra CommunicationMethod for selecting propagation paths retained for receiving messages transmitted by CDMA radiocommunicationUS5481570Oct 20, 1993Jan 2, 1996At&T Corp.Block radio and adaptive arrays for wireless systemsUS5506865Nov 21, 1994Apr 9, 1996Qualcomm IncorporatedPilot carrier dot product circuitUS5513176Aug 27, 1993Apr 30, 1996Qualcomm IncorporatedDual distributed antenna systemUS5533011Dec 23, 1994Jul 2, 1996Qualcomm IncorporatedDual distributed antenna systemUS5553098Apr 12, 1994Sep 3, 1996Sicom, Inc.Demodulator with selectable coherent and differential dataUS5600670Dec 21, 1994Feb 4, 1997Trimble Navigation, Ltd.Dynamic channel allocation for GPS receiversUS5602833Dec 19, 1994Feb 11, 1997Qualcomm IncorporatedMethod and apparatus for using Walsh shift keying in a spread spectrum communication systemUS5644592Apr 24, 1995Jul 1, 1997California Institute Of TechnologyParallel interference cancellation for CDMA applicationsUS5671221Jun 14, 1995Sep 23, 1997Sharp Microelectronics Technology, Inc.Receiving method and apparatus for use in a spread-spectrum communication systemUS5736964Feb 16, 1996Apr 7, 1998Motorola, Inc.Method and apparatus for location finding in a CDMA systemUS5787130Dec 10, 1996Jul 28, 1998Motorola Inc.Method and apparatus for canceling interference in a spread-spectrum communication systemUS5844521Dec 2, 1996Dec 1, 1998Trw Inc.Geolocation method and apparatus for satellite based telecommunications systemUS5859613Aug 30, 1996Jan 12, 1999Harris CorporationSystem and method for geolocating plural remote transmittersUS5872540Jun 26, 1997Feb 16, 1999Electro-Radiation IncorporatedDigital interference suppression system for radio frequency interference cancellationUS5872776Nov 22, 1996Feb 16, 1999Yang; Lin-LangSignal detection and interference cancellation based on simplified matrix inversion for CDMA applicationsUS5894500Jun 13, 1997Apr 13, 1999Motorola, Inc.Method and apparatus for canceling signals in a spread-spectrum communication systemUS5926761Jun 11, 1996Jul 20, 1999Motorola, Inc.Method and apparatus for mitigating the effects of interference in a wireless communication systemUS5930229Mar 10, 1997Jul 27, 1999Nec CorporationInterference canceller for CDMAUS5953369Jun 10, 1997Sep 14, 1999Nec CorporationDS-CDMA receiver with multi-stage serial interference cancelers using power level information appended to data blocksUS5978413Aug 28, 1995Nov 2, 1999Bender; Paul E.Method and system for processing a plurality of multiple access transmissionsUS5995499Oct 5, 1995Nov 30, 1999Nokia Telecommunications OySignal detection in a TDMA systemUS6002727Oct 16, 1997Dec 14, 1999Matsushita Electric Industrial Co., Ltd.Interference signal cancellation systemUS6014373Sep 29, 1997Jan 11, 2000Interdigital Technology CorporationSpread spectrum CDMA subtractive interference canceler systemUS6018317Nov 22, 1996Jan 25, 2000Trw Inc.Cochannel signal processing systemUS6032056Jun 9, 1998Feb 29, 2000Metawave Communications CorporationCellular system signal conditionerUS6078611Sep 16, 1997Jun 20, 2000Motorola, Inc.Rake receiver and finger management method for spread spectrum communicationUS6088383Mar 5, 1997Jul 11, 2000Kokusai Denshin Denwa Kabushiki KaishaSpread-spectrum signal demodulatorUS6101385Oct 9, 1997Aug 8, 2000Globalstar L.P.Satellite communication service with non-congruent sub-beam coverageUS6104712Feb 22, 1999Aug 15, 2000Robert; Bruno G.Wireless communication network including plural migratory access nodesUS6115409Jun 21, 1999Sep 5, 2000Envoy Networks, Inc.Integrated adaptive spatial-temporal system for controlling narrowband and wideband sources of interferences in spread spectrum CDMA receiversUS6127973Apr 18, 1997Oct 3, 2000Korea Telecom Freetel Co., Ltd.Signal processing apparatus and method for reducing the effects of interference and noise in wireless communication systemsUS6131013Jan 30, 1998Oct 10, 2000Motorola, Inc.Method and apparatus for performing targeted interference suppressionUS6137788Jun 12, 1996Oct 24, 2000Ntt Mobile Communications Network, Inc.CDMA demodulating apparatusUS6141332Mar 29, 1999Oct 31, 2000Interdigital Technology CorporationOrthogonal code synchronization system and method for spread spectrum CDMA communicationsUS6154443Aug 11, 1998Nov 28, 2000Industrial Technology Research InstituteFFT-based CDMA RAKE receiver system and methodUS6157685Dec 19, 1997Dec 5, 2000Fujitsu LimitedInterference canceller equipment and interference cancelling method for use in a multibeam-antenna communication systemUS6157842Oct 16, 1997Dec 5, 2000Telefonaktiebolaget Lm EricssonSystem and method for positioning a mobile station in a CDMA cellular systemUS6157847Jun 29, 1999Dec 5, 2000Lucent Technologies Inc.Base station system including parallel interference cancellation processorUS6163696Dec 31, 1996Dec 19, 2000Lucent Technologies Inc.Mobile location estimation in a wireless communication systemUS6166690Jul 2, 1999Dec 26, 2000Sensor Systems, Inc.Adaptive nulling methods for GPS reception in multiple-interference environmentsUS6172969Jan 28, 1998Jan 9, 2001Oki Electric Industry Co., Ltd.CDMA receiver employing successive cancellation of training-signal interferenceUS6175587Dec 30, 1997Jan 16, 2001Motorola, Inc.Communication device and method for interference suppression in a DS-CDMA systemUS6192067Dec 19, 1997Feb 20, 2001Fujitsu LimitedMultistage interference cancellerUS6201799May 1, 1997Mar 13, 2001Lucent Technologies, IncPartial decorrelation for a coherent multicode code division multiple access receiverUS6215812Dec 16, 1999Apr 10, 2001Bae Systems Canada Inc.Interference canceller for the protection of direct-sequence spread-spectrum communications from high-power narrowband interferenceUS6219376Feb 21, 1998Apr 17, 2001Topcon Positioning Systems, Inc.Apparatuses and methods of suppressing a narrow-band interference with a compensator and adjustment loopsUS6222828Oct 30, 1996Apr 24, 2001Trw, Inc.Orthogonal code division multiple access waveform format for use in satellite based cellular telecommunicationsUS6230180Oct 14, 1998May 8, 2001Conexant Systems, Inc.Digital signal processor configuration including multiplying units coupled to plural accumlators for enhanced parallel mac processingUS6233229Nov 27, 1995May 15, 2001Nokia Telecommunications OyMethod of allocating frequency bands to different cells, and TDMA cellular radio systemUS6233459Mar 18, 1998May 15, 2001The Atlantis Company, Limited, JapanSystem for providing Geolocation of a mobile transceiverUS6240124Nov 2, 1999May 29, 2001Globalstar L.P.Closed loop power control for low earth orbit satellite communications systemUS6252535Aug 20, 1998Jun 26, 2001Data Fusion CorporationMethod and apparatus for acquiring wide-band pseudorandom noise encoded waveformsUS6256336Jun 13, 1997Jul 3, 2001Siemens AktiengesellschaftMethod and apparatus for detecting items of information transmitted according to the DS-CDMA principle in a receiver apparatusUS6259688Mar 25, 1999Jul 10, 2001Interdigital Technology CorporationSpread spectrum CDMA subtractive interference canceler systemUS6263208May 28, 1999Jul 17, 2001Lucent Technologies Inc.Geolocation estimation method for CDMA terminals based on pilot strength measurementsUS6266529May 13, 1998Jul 24, 2001Nortel Networks LimitedMethod for CDMA handoff in the vicinity of highly sectorized cellsUS6275186Dec 10, 1999Aug 14, 2001Samsung Electronics Co., Ltd.Device and method for locating a mobile station in a mobile communication systemUS20030103556 *Nov 16, 2001Jun 5, 2003Samsung Electronics Co. Ltd.Method and system for resource sharing between demodulating paths of a rake receiverUS20030138030 *Aug 2, 2002Jul 24, 2003Stratis GavnoudiasConfigurable terminal engine* Cited by examinerNon-Patent CitationsReference1Affes, Sofiene; Hansen, Henrik; and Mermelstein, Paul, "Interference Subspace Rejection: A Framework for Multiuser Detection in Wideband CDMA," IEEE Journal on Selected Areas in Communications, vol. 20, No. 2, Feb. 2002. 16 pages.2Alexander, Paul D., Rasmussen, Lars K., and Schlegel, Christian B., "A Linear Receiver for Coded Multiuser CDMA," IEEE transactions on Communications, vol. 45, No. 5, May 1997. 6 pages.3B. Widrow, S. Stearns, "Adaptive Signal Processing", Prentice Hall, Signal Processing Series, ISBN 0-13-004029-01, 1985.4Behrens, Richard T. and Scharf, Louis I., "Signal Processing Applications of Oblique Projection Operators," IEEE Transactions on Signal Processing, vol. 42, No. 6, Jun. 1994, pp. 1413-1424. 12 pages.5Behrens, Richard T. and Scharf, Louis L., "Parameter Estimation in the Presence of Low Rank Noise," 22ACSSC-12/88/0341, pp. 341-344, Maple Press, 1988. 4 pages.6Behrens, Subspace Signal Processing in Structured Noise, UMI Dissertation Services, Jun. 1990, Ann Arbor, MI, US.7Best, Phase-Locked Loops-Design, Simulation, and Applications, pp. 251-287, McGraw-Hill, 1999.8Cheng, Unjeng, Hurd, William J., and Statman, Joseph I., "Spread-Spectrum Code Acquisition in the Presence of Doppler Shift and Data Modulation," IEEE Transactions on Communications, vol. 38, No. 2, Feb. 1990. 10 pages.9Decision on the Request for Further Processing under Rule 135(3) EPC, dated Jul. 6, 2010, re EP Application No. 03770434.3-1525. 1 page.10EP Office Action with mail date of Sep. 8, 2009 re EP Application No. 03770434. 3 Pages.11EP Office Communication pursuant to Article 94(3) EPC, dated Oct. 4, 2010, in EP Application No. 03770434.3-1525. 7 pages.12EP Office Communication pursuant to Article 94(3) EPC, First Examination Report, dated Jul. 4, 2008, in EP Application No. 03770434.3-1525. 7 pages.13EP Office Communication pursuant to Article 94(3) EPC, Second Examination Report, dated Jan. 13, 2009 in EP Application No. 03770434.3-1525. 4 pages.14EP Response dated Jun. 29, 2010 to the Official Communications dated Apr. 26, 2010 and Sep. 8, 2009 re EP Application 03770434.3 includes Amended description pages and amended claims (highlighted and clear). 18 Pages.15EP Response dated Sep. 27, 2010 to Official Communication of Aug. 17, 2010 (Includes Clear and Highlighted Amendments) in EP Application No. 03770434.3-1525. 15 pages.16European Patent Office , Communication dated Jun. 27, 2006 in App. No. 02 776 047.9.17European Patent Office , Communication dated Nov. 30, 2009 in App. No. 02 776 047.9.18Frankel et al., High-performance photonic analogue digital converter, Electronic Letters, Dec. 4, 1997, vol. 33, No. 25.19G.M.A. Sessler, "Low Complexity Polynomial Expansion Multiuser Detector for CDMA Systems", IEEE Trans. On Veh. Tech., vol. 54, No. 4, pp. 1379-1391, Jul. 2005.20Garg, et al., Wireless and Personal Communications Systems, 1996, pp. 79-151, Prentice-Hall, Upper Saddle River, NJ, US.21Halper, Christian; Heiss, Michael; and Brasseur, Georg, "Digital-to-Analog Conversion by Pulse-Count Modulation Methods," IEEE Transactions on Instrumentation and Measurement, vol. 45, No. 4, Aug. 1996. 10 pages.22Iltis, Ronald A. and Mailaender, Laurence, "Multiuser Detection of Quasisynchronous CDMA Signals Using Linear Decorrelators," IEEE Transactions on Communications, vol. 44, No. 11, Nov. 1996. 11 pages.23Kaplan, Understanding GPS-Principles and Applications, 1996, pp. 83-236, Artech House, Norwood, MA, US.24Kaplan, Understanding GPS—Principles and Applications, 1996, pp. 83-236, Artech House, Norwood, MA, US.25Kohno, et al., Cancellation Techniques of Co-Channel Interference in Asynchronous Spread Spectrum Multiple Access Systems, May 1983, vol. J 56-A. No. 5.26KR Response dated Aug. 20, 2010 to the Office Action dated Sep. 8, 2010 in KR Application No. 10-2005-7005004. 19 pages.27Lin, Kun; Zhao, Kan; Chui, Edmund; Krone, Andrew; and Nohrden, Jim; "Digital Filters for High Performance Audio Delta-sigma Analog-to-Digital and Digital-to-Analog Conversions," Proceedings of ICSP 1996, Crystal Semiconductor Corporation, Austin, TX,US. pp. 59-63. 5 pages.28Lupas, Ruxandra and Verdu, Sergio, "Linear Multiuser Detectors for Synchronous Code-Division Multiple-Access Channels," IEEE Transactions on Information Theory, vol. 35, No. 1, Jan. 1989. 14 pages.29Lupas, Ruxandra and Verdu, Sergio, "Near-Far Resistance of Multiuser Detectors in Asynchronous Channels," IEEE transactions on Communications, vol. 38, No. 4, Apr. 1990. 13 pages.30Mitra, Urbashi and Poor, H. Vincent, "Adaptive Decorrelating Detectors for CDMA Systems," accepted for Wireless Communications Journal, accepted May 1995. 25 pages.31Mitra, Urbashi, and Poor, H. Vincent, "Adaptive Receiver Algorithms for Near-Far Resistant CDMA," IEEE Transactions of Communications, vol. 43, No. 2/3/4, Feb./Mar./Apr. 1995. 12 pages.32Official Communication dated Aug. 17, 2010 in EP Application No. 03770434.3-1525. 3 pages.33Ortega, J.G.; Janer, C.L.; Quero, J.M.; Franquelo, L.G.; Pinilla, J.; and Serrano, J., "Analog to Digital and Digital to Analog Conversion Based on Stochastic Logic," IEEE 0-7803-3026-9/95, 1995. 5 pages.34Price, et al., "A Communication Technique for Multipath Channels," Proceedings of the IRE, vol. 46, The Institute of Radio Engineers, New York, NY, US, 1958. 16 pages.35Rappaport, Wireless Communications-Principles & Practice, 1996, pp. 518-533, Prentice-Hall, Upper Saddle River, NJ, US.36Rappaport, Wireless Communications—Principles & Practice, 1996, pp. 518-533, Prentice-Hall, Upper Saddle River, NJ, US.37Response to the Official Communications of Apr. 26, 2010 and Sep. 8, 2009, dated Jun. 29, 2010, re Application No. 03770434.3 (Includes both clear and highlighted amendments as well as two new description pages). 18 pages.38Scharf, et al., "Matched Subspace Detectors," IEEE Transactions on Signal Processing, vol. 42, No. 8, Aug. 1994. 12 pages.39Scharf, Matched Subspace Detectors, Signals Systems and Computers, 1993 Conference Record of the Twenty-Seventh Asilomar Conference on Pacific Grove, CA, USA, Nov. 1-3, 1993, Los Alamitos, CA, USA, IEEE Comput. Soc., pp. 701-706.40Scharf, Statistical Signal Processing-Detection, Estimation, and Time Series Analysis, 1991 , pp. 23-75 and 103-178, Addison Wesly, Reading, MA, US.41Scharf, Statistical Signal Processing—Detection, Estimation, and Time Series Analysis, 1991 , pp. 23-75 and 103-178, Addison Wesly, Reading, MA, US.42Schlegel, C.B.; Xiang, Z-J.; and Roy, S., "Projection Receiver: A New Efficient Multi-User Detector," IEEE 0-7803-2509-5/95, 1995. 5 pages.43Schlegel, Christian, Alexander, Paul and Roy, Sumit, "Coded Asynchronous CDMA and Its Efficient Detection," IEEE Transactions on Information Theory, vol. 44, No. 7, Nov. 1998. 11 pages.44Schlegel, Christian; Roy, Sumit; Alexander, Paul D.; and Xiang, Zeng-Jun, "Multiuser Projection Receivers," IEEE Journal on Selected Areas in Communications, vol. 14, No. 8, Oct. 1996. 9 pages.45Schneider, Kenneth S., "Optimum Detection of Code Division Multiplexed Signals," IEEE Transactions on Aerospace and Electronic Systems, vol. AES-15, No. 1, Jan. 1979. 5 pages.46Stimson, Introduction to Airborne Radar 2nd edition, 1998, pp. 163-176 and 473-491, SciTech Publishing, Mendham, NJ,US.47Thomas, Thesis for the Doctor of Philosophy Degree, UMI dissertation Services, Jun. 1996, Ann Arbor, MI, US.48Verdu, Sergio, "Minimum Probability of Error for Asynchronous Gaussian Multiple-Access Channels," IEEE Transactions on Information Theory, vol. IT-32, No. 1, Jan. 1986. 12 pages.49Viterbi, Andrew J., "Very Low Rate Convolutional Codes for Maximum Theoretical Performance of Spread-Spectrum Multiple-Access Channels," IEEE Journal on Selected Areas in Communications, vol. 8, No. 4, May 1990. 9 pages.50Viterbi, CDMA-Principles of Spread Spectrum Communication, 1995, pp. 11-75 and 179-233, Addison-Wesley, Reading, MA, US.51Viterbi, CDMA—Principles of Spread Spectrum Communication, 1995, pp. 11-75 and 179-233, Addison-Wesley, Reading, MA, US.52Xie, Zhenhua; Short, Robert T. and Rushforth, Craig K., "A Family of Suboptimum Detectors for Coherent Multiuser Communications," IEEE Journal on Selected Areas in Communications, vol. 8, No. 4, May 1990. 8 pages.Classifications U.S. Classification375/144, 375/130International ClassificationH04B1/707, H04B1/00Cooperative ClassificationH04B2001/71077, H04B1/7115, H04B1/7107, H04B1/7117, H04B1/71072European ClassificationH04B1/7107, H04B1/7117Legal EventsDateCodeEventDescriptionApr 9, 2014ASAssignmentOwner name: III HOLDINGS 1, LLC, DELAWAREFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:RAMBUS INC.;REEL/FRAME:032642/0115Effective date: 20140317RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services