USRE37802E1 - Multicode direct sequence spread spectrum - Google Patents

Multicode direct sequence spread spectrum Download PDF

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Publication number
USRE37802E1
USRE37802E1 US09/151,604 US15160498D USRE37802E US RE37802 E1 USRE37802 E1 US RE37802E1 US 15160498 D US15160498 D US 15160498D US RE37802 E USRE37802 E US RE37802E
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US
United States
Prior art keywords
data symbols
transceiver
code
modulated data
transform
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US09/151,604
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English (en)
Inventor
Michel T. Fattouche
Hatim Zaghloul
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Quarterhill Inc
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WiLAN Inc
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Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=57048653&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=USRE37802(E1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from US07/861,725 external-priority patent/US5282222A/en
Priority claimed from US08/186,784 external-priority patent/US5555268A/en
Application filed by WiLAN Inc filed Critical WiLAN Inc
Application granted granted Critical
Publication of USRE37802E1 publication Critical patent/USRE37802E1/en
Assigned to WI-LAN, INC. reassignment WI-LAN, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ENSEMBLE COMMUNICATIONS, INC.
Assigned to WI-LAN, INC. reassignment WI-LAN, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FATTOUCHE, MICHAEL, ZAGHLOUL, HATIM
Anticipated expiration legal-status Critical
Assigned to QUARTERHILL INC. reassignment QUARTERHILL INC. MERGER AND CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: QUARTERHILL INC., WI-LAN INC.
Assigned to WI-LAN INC. reassignment WI-LAN INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: QUARTERHILL INC.
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0077—Multicode, e.g. multiple codes assigned to one user
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/2627—Modulators
    • H04L27/2628—Inverse Fourier transform modulators, e.g. inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2649—Demodulators
    • H04L27/265—Fourier transform demodulators, e.g. fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/023—Multiplexing of multicarrier modulation signals
    • H04L5/026—Multiplexing of multicarrier modulation signals using code division
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/709—Correlator structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70703—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation using multiple or variable rates
US09/151,604 1992-03-31 1998-09-10 Multicode direct sequence spread spectrum Expired - Lifetime USRE37802E1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/861,725 US5282222A (en) 1992-03-31 1992-03-31 Method and apparatus for multiple access between transceivers in wireless communications using OFDM spread spectrum
US08/186,784 US5555268A (en) 1994-01-24 1994-01-24 Multicode direct sequence spread spectrum
US15160498A 1998-09-10 1998-09-10

Publications (1)

Publication Number Publication Date
USRE37802E1 true USRE37802E1 (en) 2002-07-23

Family

ID=57048653

Family Applications (1)

Application Number Title Priority Date Filing Date
US09/151,604 Expired - Lifetime USRE37802E1 (en) 1992-03-31 1998-09-10 Multicode direct sequence spread spectrum

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US (1) USRE37802E1 (USRE037802-20020723-C00001.png)

Cited By (67)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020188731A1 (en) * 2001-05-10 2002-12-12 Sergey Potekhin Control unit for multipoint multimedia/audio system
US20040233836A1 (en) * 2002-03-26 2004-11-25 Atsushi Sumasu Multi-carrier transmission apparatus and multi-carrier transmission method
US20050025079A1 (en) * 2003-07-18 2005-02-03 Shigeo Terabe Mobile communication system, radio control station, base station and mobile station for the system, and parameter determination method employing parallel combinatory spread-spectrum scheme
US20050047367A1 (en) * 2001-12-06 2005-03-03 Ismail Lakkis Ultra-wideband communication systems and methods
US20050078736A1 (en) * 2001-12-06 2005-04-14 Ismail Lakkis Ultra-wideband communication systems and methods
US20050117557A1 (en) * 2001-12-06 2005-06-02 Ismail Lakkis Ultra-wideband communication apparatus and methods
US20050152475A1 (en) * 2001-12-06 2005-07-14 Ismail Lakkis Systems and methods for receiving data in a wireless communication network
US20050157782A1 (en) * 2001-12-06 2005-07-21 Ismail Lakkis Systems and methods for transmitting data in a wireless communication network
US20050201326A1 (en) * 2001-12-06 2005-09-15 Lakkis Ismail A. Systems and methods for wireless communication over a wide bandwidth channel using a plurality of sub-channels
US20050201473A1 (en) * 2001-12-06 2005-09-15 Ismail Lakkis Systems and methods for receiving data in a wireless communication network
US20050213729A1 (en) * 2000-12-26 2005-09-29 Polycom,Inc. Speakerphone using a secure audio connection to initiate a second secure connection
US20050213732A1 (en) * 2001-12-31 2005-09-29 Polycom, Inc. Conference bridge which decodes and responds to control information embedded in audio information
US20050213727A1 (en) * 2001-05-10 2005-09-29 Polycom, Inc. Speakerphone and conference bridge which request and perform polling operations
US20050213726A1 (en) * 2001-12-31 2005-09-29 Polycom, Inc. Conference bridge which transfers control information embedded in audio information between endpoints
US20050213733A1 (en) * 2001-12-31 2005-09-29 Polycom, Inc. Speakerphone and conference bridge which receive and provide participant monitoring information
US20050213734A1 (en) * 2001-12-31 2005-09-29 Polycom, Inc. Conference bridge which detects control information embedded in audio information to prioritize operations
US20050213736A1 (en) * 2001-12-31 2005-09-29 Polycom, Inc. Speakerphone establishing and using a second connection of graphics information
US20050213735A1 (en) * 2000-12-26 2005-09-29 Polycom, Inc. Speakerphone transmitting URL information to a remote device
US20050213739A1 (en) * 2001-05-10 2005-09-29 Polycom, Inc. Conference endpoint controlling functions of a remote device
US20050213517A1 (en) * 2000-12-26 2005-09-29 Polycom, Inc. Conference endpoint controlling audio volume of a remote device
US20050213730A1 (en) * 2000-12-26 2005-09-29 Polycom, Inc. Conference endpoint instructing conference bridge to dial phone number
US20060072649A1 (en) * 2002-10-26 2006-04-06 Kyung-Hi Chang Frequency hopping ofdma method using symbols of comb pattern
US7031371B1 (en) 2000-09-25 2006-04-18 Lakkis Ismail A CDMA/TDMA communication method and apparatus for wireless communication using cyclic spreading codes
US20060109067A1 (en) * 2004-11-22 2006-05-25 Ruckus Wireless, Inc. Circuit board having a pereipheral antenna apparatus with selectable antenna elements and selectable phase shifting
US20060282184A1 (en) * 2005-06-08 2006-12-14 Polycom, Inc. Voice interference correction for mixed voice and spread spectrum data signaling
US20070047626A1 (en) * 2005-06-08 2007-03-01 Polycom, Inc Mixed voice and spread spectrum data signaling with multiplexing multiple users with cdma
US20070047624A1 (en) * 2005-06-08 2007-03-01 Polycom, Inc Mixed voice and spread spectrum data signaling with enhanced concealment of data
US7317756B2 (en) 2001-12-06 2008-01-08 Pulse-Link, Inc. Ultra-wideband communication apparatus and methods
US20080008275A1 (en) * 1997-09-16 2008-01-10 Cingular Wireless Ii, Llc Transmitter diversity technique for wireless communications
US7339955B2 (en) 2000-09-25 2008-03-04 Pulse-Link, Inc. TDMA communication method and apparatus using cyclic spreading codes
US20080084952A1 (en) * 2001-06-08 2008-04-10 Kolze Thomas J Channel equalization with scdma modulation
US20080143819A1 (en) * 2004-04-16 2008-06-19 Polycom, Inc. Conference link between a speakerphone and a video conference unit
US7433382B1 (en) * 2003-07-07 2008-10-07 Miao George J Spread spectrum based multichannel modulation for ultra wideband communications
US7498996B2 (en) 2004-08-18 2009-03-03 Ruckus Wireless, Inc. Antennas with polarization diversity
US7511680B2 (en) 2004-08-18 2009-03-31 Ruckus Wireless, Inc. Minimized antenna apparatus with selectable elements
US7525486B2 (en) 2004-11-22 2009-04-28 Ruckus Wireless, Inc. Increased wireless coverage patterns
US7627056B1 (en) * 2002-03-29 2009-12-01 Scientific Research Corporation System and method for orthogonally multiplexed signal transmission and reception on a non-contiguous spectral basis
US7639106B2 (en) 2006-04-28 2009-12-29 Ruckus Wireless, Inc. PIN diode network for multiband RF coupling
US7646343B2 (en) 2005-06-24 2010-01-12 Ruckus Wireless, Inc. Multiple-input multiple-output wireless antennas
US7652632B2 (en) 2004-08-18 2010-01-26 Ruckus Wireless, Inc. Multiband omnidirectional planar antenna apparatus with selectable elements
US7696946B2 (en) 2004-08-18 2010-04-13 Ruckus Wireless, Inc. Reducing stray capacitance in antenna element switching
US7880683B2 (en) 2004-08-18 2011-02-01 Ruckus Wireless, Inc. Antennas with polarization diversity
US7965252B2 (en) 2004-08-18 2011-06-21 Ruckus Wireless, Inc. Dual polarization antenna array with increased wireless coverage
US7978838B2 (en) 2001-12-31 2011-07-12 Polycom, Inc. Conference endpoint instructing conference bridge to mute participants
US8023458B2 (en) 2001-12-31 2011-09-20 Polycom, Inc. Method and apparatus for wideband conferencing
US8031129B2 (en) 2004-08-18 2011-10-04 Ruckus Wireless, Inc. Dual band dual polarization antenna array
US8045935B2 (en) 2001-12-06 2011-10-25 Pulse-Link, Inc. High data rate transmitter and receiver
US8068068B2 (en) 2005-06-24 2011-11-29 Ruckus Wireless, Inc. Coverage antenna apparatus with selectable horizontal and vertical polarization elements
US8217843B2 (en) 2009-03-13 2012-07-10 Ruckus Wireless, Inc. Adjustment of radiation patterns utilizing a position sensor
US8223942B2 (en) 2001-12-31 2012-07-17 Polycom, Inc. Conference endpoint requesting and receiving billing information from a conference bridge
US8351545B2 (en) 1997-10-31 2013-01-08 At&T Mobility Ii Llc Low complexity maximum likelihood detection of concatenated space codes for wireless applications
US8686905B2 (en) 2007-01-08 2014-04-01 Ruckus Wireless, Inc. Pattern shaping of RF emission patterns
US8698675B2 (en) 2009-05-12 2014-04-15 Ruckus Wireless, Inc. Mountable antenna elements for dual band antenna
US8705719B2 (en) 2001-12-31 2014-04-22 Polycom, Inc. Speakerphone and conference bridge which receive and provide participant monitoring information
US8756668B2 (en) 2012-02-09 2014-06-17 Ruckus Wireless, Inc. Dynamic PSK for hotspots
US8934381B2 (en) 2001-12-31 2015-01-13 Polycom, Inc. Conference endpoint instructing a remote device to establish a new connection
US8977683B2 (en) 2000-12-26 2015-03-10 Polycom, Inc. Speakerphone transmitting password information to a remote device
US9019165B2 (en) 2004-08-18 2015-04-28 Ruckus Wireless, Inc. Antenna with selectable elements for use in wireless communications
US9092610B2 (en) 2012-04-04 2015-07-28 Ruckus Wireless, Inc. Key assignment for a brand
US9106286B2 (en) 2000-06-13 2015-08-11 Comcast Cable Communications, Llc Network communication using diversity
US9407012B2 (en) 2010-09-21 2016-08-02 Ruckus Wireless, Inc. Antenna with dual polarization and mountable antenna elements
US9570799B2 (en) 2012-09-07 2017-02-14 Ruckus Wireless, Inc. Multiband monopole antenna apparatus with ground plane aperture
US9634403B2 (en) 2012-02-14 2017-04-25 Ruckus Wireless, Inc. Radio frequency emission pattern shaping
US10186750B2 (en) 2012-02-14 2019-01-22 Arris Enterprises Llc Radio frequency antenna array with spacing element
US10230161B2 (en) 2013-03-15 2019-03-12 Arris Enterprises Llc Low-band reflector for dual band directional antenna
US10545245B2 (en) * 2014-09-16 2020-01-28 Nottingham Scientific Limited GNSS jamming signal detection
US10720959B2 (en) * 2017-10-12 2020-07-21 British Cayman Islands Intelligo Technology Inc. Spread spectrum based audio frequency communication system

Citations (70)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3485949A (en) 1966-05-02 1969-12-23 Gen Dynamics Corp Differential phase shift keying receiver with information modulated on a plurality of tones
US3789149A (en) 1969-07-30 1974-01-29 Plessey Telecommunications Res Code division multiplex system
US3956619A (en) 1975-03-31 1976-05-11 General Electric Company Pipeline walsh-hadamard transformations
US3987374A (en) 1974-11-21 1976-10-19 International Business Machines Corporation Multi-line, multi-mode modulator using bandwidth reduction for digital FSK and DPSK modulation
US4092491A (en) 1977-04-04 1978-05-30 Bell Telephone Laboratories, Incorporated Differential encoding and decoding scheme for digital transmission systems
US4164628A (en) 1977-06-06 1979-08-14 International Telephone And Telegraph Corporation Processor for multiple, continuous, spread spectrum signals
US4306308A (en) 1979-09-14 1981-12-15 Rca Corporation Symbols communication system
US4457004A (en) 1982-02-08 1984-06-26 Bell Telephone Laboratories, Incorporated Multidimensional channel coding
GB2146875A (en) 1983-09-09 1985-04-24 Racal Res Ltd Communications systems
US4520490A (en) 1983-08-05 1985-05-28 At&T Information Systems Inc. Differentially nonlinear convolutional channel coding with expanded set of signalling alphabets
CA1203576A (en) 1977-08-22 1986-04-22 Josef Gammel Military radar - or radio communications transmission system
US4601005A (en) 1981-12-31 1986-07-15 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Receivers for navigation satellite systems
US4601045A (en) 1984-08-03 1986-07-15 Larse Corporation Modulator-demodulator method and apparatus with efficient bandwidth utilization
US4615040A (en) 1984-06-14 1986-09-30 Coenco Ltd. High speed data communications system
US4623980A (en) 1981-05-09 1986-11-18 Te Ka De Felten & Guilleaume Fernmeldeanlagen Gmbh Method of processing electrical signals by means of Fourier transformations
US4641318A (en) 1985-04-25 1987-02-03 Bell Communications Research, Inc. Method for improving the reliability of data transmission over Rayleigh fading channels
US4660215A (en) 1983-12-07 1987-04-21 Matsushita Electric Industrial Co., Ltd. Transmitter/receiver system
US4694466A (en) 1985-06-03 1987-09-15 Itt Defense Communications, A Division Of Itt Corporation Time sharing frequency synthesizer
US4713817A (en) 1985-04-25 1987-12-15 Codex Corporation Multidimensional, convolutionally coded communication systems
US4731816A (en) 1985-05-20 1988-03-15 Telebit Corporation Ensemble modem structure for imperfect transmission media
US4799214A (en) 1985-12-23 1989-01-17 Fujitsu Limited Two-wire full duplex frequency division multiplex modem system having echo cancellation means
US4809299A (en) 1987-05-05 1989-02-28 Ho Kit Fun Frequency independent information transmission system
US4829540A (en) 1986-05-27 1989-05-09 Fairchild Weston Systems, Inc. Secure communication system for multiple remote units
US4868874A (en) 1986-04-18 1989-09-19 Hitachi, Ltd. Echo canceller
US4881241A (en) 1988-02-24 1989-11-14 Centre National D'etudes Des Telecommunications Method and installation for digital communication, particularly between and toward moving vehicles
US4893266A (en) 1987-06-01 1990-01-09 Motorola, Inc. Alias tagging time domain to frequency domain signal converter
US4901307A (en) 1986-10-17 1990-02-13 Qualcomm, Inc. Spread spectrum multiple access communication system using satellite or terrestrial repeaters
US4914699A (en) 1988-10-11 1990-04-03 Itt Corporation High frequency anti-jam communication system terminal
US4928310A (en) * 1989-07-17 1990-05-22 Westinghouse Electric Corp. Pseudorandom pulse code generators using electro-optical XOR gates
US4933952A (en) * 1988-04-08 1990-06-12 Lmt Radioprofessionnelle Asynchronous digital correlator and demodulators including a correlator of this type
US4944009A (en) * 1988-02-25 1990-07-24 Massachusetts Institute Of Technology Pseudo-random sequence generator
US4979183A (en) 1989-03-23 1990-12-18 Echelon Systems Corporation Transceiver employing direct sequence spread spectrum techniques
US5029180A (en) 1989-03-23 1991-07-02 Echelon Systems Corporation Transceiver providing selectable frequencies and spreading sequences
US5034911A (en) 1988-04-11 1991-07-23 E-Systems, Inc. Signal parameterizer
US5063560A (en) 1986-02-04 1991-11-05 Advanced Systems Research Pty. Limited Spread-spectrum multiplexed transmission system
US5063574A (en) 1990-03-06 1991-11-05 Moose Paul H Multi-frequency differentially encoded digital communication for high data rate transmission through unequalized channels
US5073899A (en) 1988-07-13 1991-12-17 U.S. Philips Corporation Transmission system for sending two signals simultaneously on the same communications channel
US5089982A (en) 1990-05-24 1992-02-18 Grumman Aerospace Corporation Two dimensional fast Fourier transform converter
US5103459A (en) 1990-06-25 1992-04-07 Qualcomm Incorporated System and method for generating signal waveforms in a cdma cellular telephone system
US5128964A (en) 1990-10-10 1992-07-07 Intelligent Modem Corporation Modulation method and apparatus for multicarrier data transmission
US5134464A (en) 1990-11-16 1992-07-28 North American Philips Corporation Method and apparatus for the transmission and reception of a multicarrier digital television signal
US5151919A (en) 1990-12-17 1992-09-29 Ericsson-Ge Mobile Communications Holding Inc. Cdma subtractive demodulation
US5157686A (en) 1990-05-24 1992-10-20 Cylink Corporation Method and apparatus for the modulation of spread spectrum radio signals
US5166951A (en) 1991-05-15 1992-11-24 Scs Mobilecom, Inc. High capacity spread spectrum channel
US5193094A (en) 1990-03-07 1993-03-09 Qualcomm Incorporated Method and apparatus for generating super-orthogonal convolutional codes and the decoding thereof
US5210770A (en) 1991-09-27 1993-05-11 Lockheed Missiles & Space Company, Inc. Multiple-signal spread-spectrum transceiver
US5228025A (en) 1990-02-06 1993-07-13 Centre National D'etudes Des Telecommunications Method for the broadcasting of digital data, notably for radio broadcasting at a high bit-rate towards mobile receivers, with time-frequency interlacing and assistance in the acquisition of automatic frequency control, and corresponding receiver
US5235614A (en) * 1991-03-13 1993-08-10 Motorola, Inc. Method and apparatus for accommodating a variable number of communication channels in a spread spectrum communication system
EP0562868A2 (en) 1992-03-27 1993-09-29 WI-LAN Inc Method and apparatus for multiple access between transceivers in wireless communication using OFDM spread spectrum
EP0567771A2 (de) 1992-03-30 1993-11-03 Alcatel SEL Aktiengesellschaft Verfahren, Sender und Empfänger zur Informationsdatenübertragung mit veränderlichem Verkehrsaufkommen und Leitstation zur Koordinierung mehrerer solcher Sender und Empfänger
US5268926A (en) 1991-09-11 1993-12-07 Societe Nationale D'etude Et De Construction De Moteurs D'aviation "S.N.E.C.M.A." Method and apparatus for the simultaneous transmission of separate data signals
US5274629A (en) 1990-02-06 1993-12-28 Etat Francais and Telediffusion de France SA Method for the broadcasting of digital data, notably for radio broadcasting at high bit rate towards mobile receivers, with time-frequency interlacing and coherent demodulation
US5278844A (en) * 1991-04-11 1994-01-11 Usa Digital Radio Method and apparatus for digital audio broadcasting and reception
US5285474A (en) 1992-06-12 1994-02-08 The Board Of Trustees Of The Leland Stanford, Junior University Method for equalizing a multicarrier signal in a multicarrier communication system
US5291515A (en) 1990-06-14 1994-03-01 Clarion Co., Ltd. Spread spectrum communication device
US5307376A (en) 1991-01-17 1994-04-26 France Telecom Device for the coherent demodulation of time-frequency interlaced digital data, with estimation of the frequency response of the transmission channel and threshold, and corresponsing transmitter
US5345440A (en) 1990-09-14 1994-09-06 National Transcommunications Limited Reception of orthogonal frequency division multiplexed signals
US5357541A (en) 1989-03-23 1994-10-18 Echelon Corporation Transceiver providing selectable frequencies and spreading sequences
US5375140A (en) 1992-11-24 1994-12-20 Stanford Telecommunications, Inc. Wireless direct sequence spread spectrum digital cellular telephone system
US5414734A (en) 1993-01-06 1995-05-09 Glenayre Electronics, Inc. Compensation for multi-path interference using pilot symbols
US5442625A (en) 1994-05-13 1995-08-15 At&T Ipm Corp Code division multiple access system providing variable data rate access to a user
US5467367A (en) 1991-06-07 1995-11-14 Canon Kabushiki Kaisha Spread spectrum communication apparatus and telephone exchange system
US5469469A (en) 1993-12-07 1995-11-21 University Of Massachusetts Lowell Research Foundation Composite spread spectrum signal including modulator demodulator
US5479447A (en) 1993-05-03 1995-12-26 The Board Of Trustees Of The Leland Stanford, Junior University Method and apparatus for adaptive, variable bandwidth, high-speed data transmission of a multicarrier signal over digital subscriber lines
US5487069A (en) 1992-11-27 1996-01-23 Commonwealth Scientific And Industrial Research Organization Wireless LAN
US5550812A (en) 1991-02-28 1996-08-27 U.S. Philips Corporation System for broadcasting and receiving digital data, receiver and transmitter for use in such system
US5596601A (en) 1994-08-30 1997-01-21 Lucent Technologies Inc. Method and apparatus for spread spectrum code pulse position modulation
US5615209A (en) 1995-07-26 1997-03-25 Ericsson Inc. Method and apparatus for CDMA signal orthogonalization
US5623511A (en) 1994-08-30 1997-04-22 Lucent Technologies Inc. Spread spectrum code pulse position modulated receiver having delay spread compensation
US5960032A (en) 1995-09-20 1999-09-28 The Hong Kong University Of Science & Technology High speed data transmission using expanded bit durations in multiple parallel coded data streams

Patent Citations (76)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3485949A (en) 1966-05-02 1969-12-23 Gen Dynamics Corp Differential phase shift keying receiver with information modulated on a plurality of tones
US3789149A (en) 1969-07-30 1974-01-29 Plessey Telecommunications Res Code division multiplex system
US3987374A (en) 1974-11-21 1976-10-19 International Business Machines Corporation Multi-line, multi-mode modulator using bandwidth reduction for digital FSK and DPSK modulation
US3956619A (en) 1975-03-31 1976-05-11 General Electric Company Pipeline walsh-hadamard transformations
US4092491A (en) 1977-04-04 1978-05-30 Bell Telephone Laboratories, Incorporated Differential encoding and decoding scheme for digital transmission systems
US4164628A (en) 1977-06-06 1979-08-14 International Telephone And Telegraph Corporation Processor for multiple, continuous, spread spectrum signals
CA1203576A (en) 1977-08-22 1986-04-22 Josef Gammel Military radar - or radio communications transmission system
US4306308A (en) 1979-09-14 1981-12-15 Rca Corporation Symbols communication system
US4623980A (en) 1981-05-09 1986-11-18 Te Ka De Felten & Guilleaume Fernmeldeanlagen Gmbh Method of processing electrical signals by means of Fourier transformations
US4601005A (en) 1981-12-31 1986-07-15 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Receivers for navigation satellite systems
US4457004A (en) 1982-02-08 1984-06-26 Bell Telephone Laboratories, Incorporated Multidimensional channel coding
US4520490A (en) 1983-08-05 1985-05-28 At&T Information Systems Inc. Differentially nonlinear convolutional channel coding with expanded set of signalling alphabets
GB2146875A (en) 1983-09-09 1985-04-24 Racal Res Ltd Communications systems
US4660215A (en) 1983-12-07 1987-04-21 Matsushita Electric Industrial Co., Ltd. Transmitter/receiver system
US4615040A (en) 1984-06-14 1986-09-30 Coenco Ltd. High speed data communications system
US4601045A (en) 1984-08-03 1986-07-15 Larse Corporation Modulator-demodulator method and apparatus with efficient bandwidth utilization
US4641318A (en) 1985-04-25 1987-02-03 Bell Communications Research, Inc. Method for improving the reliability of data transmission over Rayleigh fading channels
US4713817A (en) 1985-04-25 1987-12-15 Codex Corporation Multidimensional, convolutionally coded communication systems
US4731816A (en) 1985-05-20 1988-03-15 Telebit Corporation Ensemble modem structure for imperfect transmission media
US4694466A (en) 1985-06-03 1987-09-15 Itt Defense Communications, A Division Of Itt Corporation Time sharing frequency synthesizer
US4799214A (en) 1985-12-23 1989-01-17 Fujitsu Limited Two-wire full duplex frequency division multiplex modem system having echo cancellation means
US5063560A (en) 1986-02-04 1991-11-05 Advanced Systems Research Pty. Limited Spread-spectrum multiplexed transmission system
US4868874A (en) 1986-04-18 1989-09-19 Hitachi, Ltd. Echo canceller
US4829540A (en) 1986-05-27 1989-05-09 Fairchild Weston Systems, Inc. Secure communication system for multiple remote units
US4901307A (en) 1986-10-17 1990-02-13 Qualcomm, Inc. Spread spectrum multiple access communication system using satellite or terrestrial repeaters
US4809299A (en) 1987-05-05 1989-02-28 Ho Kit Fun Frequency independent information transmission system
US4893266A (en) 1987-06-01 1990-01-09 Motorola, Inc. Alias tagging time domain to frequency domain signal converter
US4881241A (en) 1988-02-24 1989-11-14 Centre National D'etudes Des Telecommunications Method and installation for digital communication, particularly between and toward moving vehicles
US4944009A (en) * 1988-02-25 1990-07-24 Massachusetts Institute Of Technology Pseudo-random sequence generator
US4933952A (en) * 1988-04-08 1990-06-12 Lmt Radioprofessionnelle Asynchronous digital correlator and demodulators including a correlator of this type
US5034911A (en) 1988-04-11 1991-07-23 E-Systems, Inc. Signal parameterizer
US5073899A (en) 1988-07-13 1991-12-17 U.S. Philips Corporation Transmission system for sending two signals simultaneously on the same communications channel
US4914699A (en) 1988-10-11 1990-04-03 Itt Corporation High frequency anti-jam communication system terminal
US5357541A (en) 1989-03-23 1994-10-18 Echelon Corporation Transceiver providing selectable frequencies and spreading sequences
US5029180A (en) 1989-03-23 1991-07-02 Echelon Systems Corporation Transceiver providing selectable frequencies and spreading sequences
US4979183A (en) 1989-03-23 1990-12-18 Echelon Systems Corporation Transceiver employing direct sequence spread spectrum techniques
US4928310A (en) * 1989-07-17 1990-05-22 Westinghouse Electric Corp. Pseudorandom pulse code generators using electro-optical XOR gates
US5274629A (en) 1990-02-06 1993-12-28 Etat Francais and Telediffusion de France SA Method for the broadcasting of digital data, notably for radio broadcasting at high bit rate towards mobile receivers, with time-frequency interlacing and coherent demodulation
US5228025A (en) 1990-02-06 1993-07-13 Centre National D'etudes Des Telecommunications Method for the broadcasting of digital data, notably for radio broadcasting at a high bit-rate towards mobile receivers, with time-frequency interlacing and assistance in the acquisition of automatic frequency control, and corresponding receiver
US5063574A (en) 1990-03-06 1991-11-05 Moose Paul H Multi-frequency differentially encoded digital communication for high data rate transmission through unequalized channels
US5166924A (en) 1990-03-06 1992-11-24 Mercury Digital Communications, Inc. Echo cancellation in multi-frequency differentially encoded digital communications
US5193094A (en) 1990-03-07 1993-03-09 Qualcomm Incorporated Method and apparatus for generating super-orthogonal convolutional codes and the decoding thereof
US5089982A (en) 1990-05-24 1992-02-18 Grumman Aerospace Corporation Two dimensional fast Fourier transform converter
US5157686A (en) 1990-05-24 1992-10-20 Cylink Corporation Method and apparatus for the modulation of spread spectrum radio signals
US5291515A (en) 1990-06-14 1994-03-01 Clarion Co., Ltd. Spread spectrum communication device
US5103459A (en) 1990-06-25 1992-04-07 Qualcomm Incorporated System and method for generating signal waveforms in a cdma cellular telephone system
US5715236A (en) 1990-06-25 1998-02-03 Qualcomm Incorporated System and method for generating signal waveforms in a CDMA cellular telephone system
US5309474A (en) 1990-06-25 1994-05-03 Qualcomm Incorporated System and method for generating signal waveforms in a CDMA cellular telephone system
US5416797A (en) 1990-06-25 1995-05-16 Qualcomm Incorporated System and method for generating signal waveforms in a CDMA cellular telephone system
US5103459B1 (en) 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
US5345440A (en) 1990-09-14 1994-09-06 National Transcommunications Limited Reception of orthogonal frequency division multiplexed signals
US5128964A (en) 1990-10-10 1992-07-07 Intelligent Modem Corporation Modulation method and apparatus for multicarrier data transmission
US5134464A (en) 1990-11-16 1992-07-28 North American Philips Corporation Method and apparatus for the transmission and reception of a multicarrier digital television signal
US5151919A (en) 1990-12-17 1992-09-29 Ericsson-Ge Mobile Communications Holding Inc. Cdma subtractive demodulation
US5307376A (en) 1991-01-17 1994-04-26 France Telecom Device for the coherent demodulation of time-frequency interlaced digital data, with estimation of the frequency response of the transmission channel and threshold, and corresponsing transmitter
US5550812A (en) 1991-02-28 1996-08-27 U.S. Philips Corporation System for broadcasting and receiving digital data, receiver and transmitter for use in such system
US5235614A (en) * 1991-03-13 1993-08-10 Motorola, Inc. Method and apparatus for accommodating a variable number of communication channels in a spread spectrum communication system
US5278844A (en) * 1991-04-11 1994-01-11 Usa Digital Radio Method and apparatus for digital audio broadcasting and reception
US5166951A (en) 1991-05-15 1992-11-24 Scs Mobilecom, Inc. High capacity spread spectrum channel
US5467367A (en) 1991-06-07 1995-11-14 Canon Kabushiki Kaisha Spread spectrum communication apparatus and telephone exchange system
US5268926A (en) 1991-09-11 1993-12-07 Societe Nationale D'etude Et De Construction De Moteurs D'aviation "S.N.E.C.M.A." Method and apparatus for the simultaneous transmission of separate data signals
US5210770A (en) 1991-09-27 1993-05-11 Lockheed Missiles & Space Company, Inc. Multiple-signal spread-spectrum transceiver
EP0562868A2 (en) 1992-03-27 1993-09-29 WI-LAN Inc Method and apparatus for multiple access between transceivers in wireless communication using OFDM spread spectrum
US5373502A (en) 1992-03-30 1994-12-13 Alcatel N.V. Process, transmitter and receiver for data transmission with variable traffic volume and a control station for coordinating several such transmitters and receivers
EP0567771A2 (de) 1992-03-30 1993-11-03 Alcatel SEL Aktiengesellschaft Verfahren, Sender und Empfänger zur Informationsdatenübertragung mit veränderlichem Verkehrsaufkommen und Leitstation zur Koordinierung mehrerer solcher Sender und Empfänger
US5285474A (en) 1992-06-12 1994-02-08 The Board Of Trustees Of The Leland Stanford, Junior University Method for equalizing a multicarrier signal in a multicarrier communication system
US5375140A (en) 1992-11-24 1994-12-20 Stanford Telecommunications, Inc. Wireless direct sequence spread spectrum digital cellular telephone system
US5487069A (en) 1992-11-27 1996-01-23 Commonwealth Scientific And Industrial Research Organization Wireless LAN
US5414734A (en) 1993-01-06 1995-05-09 Glenayre Electronics, Inc. Compensation for multi-path interference using pilot symbols
US5479447A (en) 1993-05-03 1995-12-26 The Board Of Trustees Of The Leland Stanford, Junior University Method and apparatus for adaptive, variable bandwidth, high-speed data transmission of a multicarrier signal over digital subscriber lines
US5469469A (en) 1993-12-07 1995-11-21 University Of Massachusetts Lowell Research Foundation Composite spread spectrum signal including modulator demodulator
US5442625A (en) 1994-05-13 1995-08-15 At&T Ipm Corp Code division multiple access system providing variable data rate access to a user
US5596601A (en) 1994-08-30 1997-01-21 Lucent Technologies Inc. Method and apparatus for spread spectrum code pulse position modulation
US5623511A (en) 1994-08-30 1997-04-22 Lucent Technologies Inc. Spread spectrum code pulse position modulated receiver having delay spread compensation
US5615209A (en) 1995-07-26 1997-03-25 Ericsson Inc. Method and apparatus for CDMA signal orthogonalization
US5960032A (en) 1995-09-20 1999-09-28 The Hong Kong University Of Science & Technology High speed data transmission using expanded bit durations in multiple parallel coded data streams

Non-Patent Citations (32)

* Cited by examiner, † Cited by third party
Title
A 19.2 kbps Voiceband Data Modem Based on Orthogonally Multiplexed QAM Techniques, B. Hirosaki, A. Yoshida, O. Tanaka, S. Hasegawa, K. Inoue and K. Watanabe, CH2175-8/85/0000-0661 IEEE, pp. 661-665.
A Theoretical Study of Performance of an Orthogonal Multiplexing Data Transmission Scheme, Robert W. Chang and Richard A. Gibby, IEEE Transactions on Communication Technology, vol. Com.-16, No. 4, Aug. 1968, pp. 529-540.
Advanced Groupband Data Modem Using Orthogonally Multiplexed QAM Technique, Botaro Hirosaki, Satoshi Hasegawa and Akio Sabato, IEEE Transactions on Communications, vol. Com-34, No. 6, Jun. 1996, pp. 587-592.
Alard, M., et al., "A New System Of Sound Broadcasting To Mobile Receivers," pp. 416-420; 1988.
An Analysis of Automatic Equalizers of Orthogonally Multiplexed QAM Systems, Botaro Hirosaki, IEEE Transactions on Communications, vol. Com-28, No. 1, Jan. 1980, pp. 73-83.
An Improved Method for Digital SSB-FDM Modulation and Demodulation, Rikio Maruta and Atsushi Tomozawa, IEEE Transactions on Communications, vol. Com-26, No. 5, May 1978, pp. 720-725.
An Orthogonally Multiplexed QAM System Using the Discrete Fourier Transform, Botaro Hirosaki, IEEE Transactions on Communications, vol. Com-29, No. 7, Jul. 1981, pp. 982-989.
Analysis and Stimulation of a Digital Mobile Channel Using Orthogonal Frequency Division Multiplexing, Leonard J. Cimini, Jr., IEEE Transactions on Communications, vol. Comm-33, No. 7, Jul. 1985, pp. 665-675.
Ananasso, Fulvio, et al., "Clock Synchronous Multicarrier Demodulator For Multi-Frequency TDMA Communication Satellites," pp. 1059-1063; 1990.
Bingham, J.A.C.; "Multicarrier Modulation for Data Transmission: An Idea Whose Time Has Come", IEEE Communications Magazine, pp. 5-14, May 1990.
Chow, Jacky S., et al., "A Discrete Multitone Tranceiver System for HDSL Applications," pp. 895-908; "IEEE Journal on Selected Areas In Communications"; Aug. 1991.
Chow, Peter S., et al., "Performance Evaluation of a Multichannel Transceiver System for ADSL and VHDSL Services," pp. 909-919; IEEE Journal on Selected Areas in Communications; Aug. 1991.
Data Transmission by Frequency-Division Multiplexing Using the Discrete Fourier Transform, S.B. Weinstein and Paul M. Ebert, IEEE Transactions on Communications, vol. Com-19, No. 5, Oct. 1971, pp. 628-634.
Duch, Krzysztof M., "Baseband Signal Processing," Network Magazine, pp. 39-43; Nov. 1991.
Gledhill, J.J., et al., "The Transmission of Digital Television In The UHF Band Using Orthogonal Frequency Division Multiplexing," pp. 175-180, No Date.
Jinkang Zhu and Gen Marubayashi, Properties and Application of Parallel Combinatory SS Communication System, IEEE Second International Symposium on Spread Spectrum Techniques and Applications (ISSSTA '92), Yokohama, Japan, pp. 227-230, Nov. 29-Dec. 2, 1992.
Jinkang Zhu, Hongbin Zhang, Yucong Gu, Principle and Performance of Variable Rate Multi-code CDMA Method, 1995 Fourth IEEE International Conference on Universal Personal Communications. Record. Gateway to the 21st Century (Cat. No. 95TH8128). IEEE, pp. 256-259, New York, NY, USA, 1995.
K. Ben Letaief, J. C-I Chuang, and R.D. Murch, Multicode High-Speed Transmission for Wireless Mobile Communications, Proceedings of the 1995 IEEE Global Telecommunications Conference GLOBEOM'95, Singapore, pp. 1835-1839, Nov. 14-16, 1995.
OFDM for Data Communication over Mobile Radio FM Channels; Part I: Analysis and Experimental Results, E.F. Casas and C. Leung, IEEE Transactions on Communications, vol. 39, No. 5, May 1991.
OFDM for Data Communication over Mobile Radio FM Radio Channels; Part II: Performance Improvement, E.F. Casas and C. Leung, Dept. of Electrical Engineering, University of British Columbia, Vancouver, BC, Canada, 1991.
Optimized Decision Feedback Equalization Versus Optimized Orthogonal Frequency Division Multiplexing for High-Speed Data Transmission Over the Local Cable Network, Nikolaos A. Zervos and Irving Kalet, CH2655-9/89/0000-1989 IEEE, pp. 1080-1085.
Performance of an Efficient Parallel Data Transmission System, Burton R. Saltzberg, IEEE Transactions on Communication Technology, vol. Com-15, No. 6, Dec. 1967, pp. 805-811.
Performance of an RCPC-Coded OFDM-Based Digital Audio Broadcasting (DAB) System, P. Hoeher, J. Hagenauer, E. Offer, Ch. Rapp, H. Schulze, Globecom '91, CH 2980-1/91/0000-0040, pp. 0040-0046.
Proakis, J.G., Digital Communication, 2d ed., 1991, Chap. 8, "Spread Spectrum Signals for Digital Communications," pp. 800-891.
Pupolin, Silvano, et al., "Performance Analysis Of Digital Radio Links With Nonlinear Transmit Amplifier And Data Predistorter With Memory," pp. 9.6.1-9.6.5; 1989.
Reduction of Multipath Fading Effects in Single Variable Modulations, M.A. Poletti and R.G. Vaughan, ISSPA 90 Signal Processing Theories, Implementations and Applications, Gold Coast, Australia Aug. 27-31, 1990, 672-676.
Saito, Masafumi, et al., "A Digital Modulation Method For Terrestrial Digital TV Broadcasting Using Trellis Coded OFDM And Its Performance," pp. 1694-1698; Globecom '92 Conference; 1992.
Scott L. Miller and Weerakhan Tantiphaiboontana, Code Division Multiplexing-Efficient Modulation for High Data Rate Transmission Over Wireless Channels, Proceedings of 2000 IEEE International Conference on Communications, pp. 1487-1491.
Shigenobu Sasaki, Jinkang Zhu, and Gen Marubayashi, Performance of Parallel Combinatory Spread Spectrum Multiple Access Communication Systems, Proceedings of 1991 IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), pp. 204-208.
Spracklen, C.T. and C. Smythe, "The Application of Code Division Multiplexing Techniques to Local Area Networks," pp. 767-770, May 1987.
Synthesis of Band-Limited Orthogonal Signals for Multichannel Data Transmission, Robert W. Chang, The Bell System Technical Journal, Dec. 1966, pp. 1775-1796.
The Multitone Channel, Irving Kalet, IEEE Transactions on Communications, vol. 37, No. 2, Feb. 1989.

Cited By (136)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8355475B2 (en) 1997-09-16 2013-01-15 At&T Mobility Ii Llc Diversity technique for wireless communications
US7916806B2 (en) * 1997-09-16 2011-03-29 At&T Mobility Ii Llc Transmitter diversity technique for wireless communications
US20110170635A1 (en) * 1997-09-16 2011-07-14 Siavash Alamouti Transmitter diversity technique for wireless communications
US9749032B2 (en) 1997-09-16 2017-08-29 At&T Mobility Ii Llc Transmitter diversity technique for wireless communications
US20080008275A1 (en) * 1997-09-16 2008-01-10 Cingular Wireless Ii, Llc Transmitter diversity technique for wireless communications
US9203499B2 (en) 1997-09-16 2015-12-01 At&T Mobility Ii Llc Transmitter diversity technique for wireless communications
US8731107B2 (en) 1997-10-31 2014-05-20 At&T Mobility Ii Llc Low complexity maximum likelihood detection of concatenated space codes for wireless applications
US8351545B2 (en) 1997-10-31 2013-01-08 At&T Mobility Ii Llc Low complexity maximum likelihood detection of concatenated space codes for wireless applications
US9065516B2 (en) 1997-10-31 2015-06-23 At&T Mobility Ii, Llc Low complexity maximum likelihood detection of concatenated space codes for wireless applications
US9515788B2 (en) 2000-06-13 2016-12-06 Comcast Cable Communications, Llc Originator and recipient based transmissions in wireless communications
US9722842B2 (en) 2000-06-13 2017-08-01 Comcast Cable Communications, Llc Transmission of data using a plurality of radio frequency channels
US9356666B1 (en) 2000-06-13 2016-05-31 Comcast Cable Communications, Llc Originator and recipient based transmissions in wireless communications
US9401783B1 (en) 2000-06-13 2016-07-26 Comcast Cable Communications, Llc Transmission of data to multiple nodes
US10257765B2 (en) 2000-06-13 2019-04-09 Comcast Cable Communications, Llc Transmission of OFDM symbols
US9820209B1 (en) 2000-06-13 2017-11-14 Comcast Cable Communications, Llc Data routing for OFDM transmissions
US10349332B2 (en) 2000-06-13 2019-07-09 Comcast Cable Communications, Llc Network communication using selected resources
US9197297B2 (en) 2000-06-13 2015-11-24 Comcast Cable Communications, Llc Network communication using diversity
US9654323B2 (en) 2000-06-13 2017-05-16 Comcast Cable Communications, Llc Data routing for OFDM transmission based on observed node capacities
US9391745B2 (en) 2000-06-13 2016-07-12 Comcast Cable Communications, Llc Multi-user transmissions
US9209871B2 (en) 2000-06-13 2015-12-08 Comcast Cable Communications, Llc Network communication using diversity
US9344233B2 (en) 2000-06-13 2016-05-17 Comcast Cable Communications, Llc Originator and recipient based transmissions in wireless communications
USRE45807E1 (en) 2000-06-13 2015-11-17 Comcast Cable Communications, Llc Apparatus for transmitting a signal including transmit data to a multiple-input capable node
US9106286B2 (en) 2000-06-13 2015-08-11 Comcast Cable Communications, Llc Network communication using diversity
USRE45775E1 (en) 2000-06-13 2015-10-20 Comcast Cable Communications, Llc Method and system for robust, secure, and high-efficiency voice and packet transmission over ad-hoc, mesh, and MIMO communication networks
US7031371B1 (en) 2000-09-25 2006-04-18 Lakkis Ismail A CDMA/TDMA communication method and apparatus for wireless communication using cyclic spreading codes
US7339955B2 (en) 2000-09-25 2008-03-04 Pulse-Link, Inc. TDMA communication method and apparatus using cyclic spreading codes
US20050213730A1 (en) * 2000-12-26 2005-09-29 Polycom, Inc. Conference endpoint instructing conference bridge to dial phone number
US20050213735A1 (en) * 2000-12-26 2005-09-29 Polycom, Inc. Speakerphone transmitting URL information to a remote device
US20050213729A1 (en) * 2000-12-26 2005-09-29 Polycom,Inc. Speakerphone using a secure audio connection to initiate a second secure connection
US8964604B2 (en) 2000-12-26 2015-02-24 Polycom, Inc. Conference endpoint instructing conference bridge to dial phone number
US8948059B2 (en) 2000-12-26 2015-02-03 Polycom, Inc. Conference endpoint controlling audio volume of a remote device
US9001702B2 (en) 2000-12-26 2015-04-07 Polycom, Inc. Speakerphone using a secure audio connection to initiate a second secure connection
US7864938B2 (en) 2000-12-26 2011-01-04 Polycom, Inc. Speakerphone transmitting URL information to a remote device
US8977683B2 (en) 2000-12-26 2015-03-10 Polycom, Inc. Speakerphone transmitting password information to a remote device
US20050213517A1 (en) * 2000-12-26 2005-09-29 Polycom, Inc. Conference endpoint controlling audio volume of a remote device
US8805928B2 (en) 2001-05-10 2014-08-12 Polycom, Inc. Control unit for multipoint multimedia/audio system
US20020188731A1 (en) * 2001-05-10 2002-12-12 Sergey Potekhin Control unit for multipoint multimedia/audio system
US20050213739A1 (en) * 2001-05-10 2005-09-29 Polycom, Inc. Conference endpoint controlling functions of a remote device
US8934382B2 (en) 2001-05-10 2015-01-13 Polycom, Inc. Conference endpoint controlling functions of a remote device
US20050213727A1 (en) * 2001-05-10 2005-09-29 Polycom, Inc. Speakerphone and conference bridge which request and perform polling operations
US8976712B2 (en) 2001-05-10 2015-03-10 Polycom, Inc. Speakerphone and conference bridge which request and perform polling operations
US20080084952A1 (en) * 2001-06-08 2008-04-10 Kolze Thomas J Channel equalization with scdma modulation
US8254500B2 (en) * 2001-06-08 2012-08-28 Broadcom Corporation Channel equalization with SCDMA modulation
US7349478B2 (en) 2001-12-06 2008-03-25 Pulse-Link, Inc. Ultra-wideband communication apparatus and methods
US8045935B2 (en) 2001-12-06 2011-10-25 Pulse-Link, Inc. High data rate transmitter and receiver
US20050047367A1 (en) * 2001-12-06 2005-03-03 Ismail Lakkis Ultra-wideband communication systems and methods
US20050078736A1 (en) * 2001-12-06 2005-04-14 Ismail Lakkis Ultra-wideband communication systems and methods
US20050117557A1 (en) * 2001-12-06 2005-06-02 Ismail Lakkis Ultra-wideband communication apparatus and methods
US20050152475A1 (en) * 2001-12-06 2005-07-14 Ismail Lakkis Systems and methods for receiving data in a wireless communication network
US20050157782A1 (en) * 2001-12-06 2005-07-21 Ismail Lakkis Systems and methods for transmitting data in a wireless communication network
US20050201326A1 (en) * 2001-12-06 2005-09-15 Lakkis Ismail A. Systems and methods for wireless communication over a wide bandwidth channel using a plurality of sub-channels
US20050201473A1 (en) * 2001-12-06 2005-09-15 Ismail Lakkis Systems and methods for receiving data in a wireless communication network
US7289494B2 (en) 2001-12-06 2007-10-30 Pulse-Link, Inc. Systems and methods for wireless communication over a wide bandwidth channel using a plurality of sub-channels
US7317756B2 (en) 2001-12-06 2008-01-08 Pulse-Link, Inc. Ultra-wideband communication apparatus and methods
US7349439B2 (en) 2001-12-06 2008-03-25 Pulse-Link, Inc. Ultra-wideband communication systems and methods
US7352806B2 (en) 2001-12-06 2008-04-01 Tensorcom, Inc. Systems and methods for transmitting data in a wireless communication network
US8744389B2 (en) 2001-12-06 2014-06-03 Intellectual Ventures Holding 73 Llc High data rate transmitter and receiver
US7929596B2 (en) 2001-12-06 2011-04-19 Pulse-Link, Inc. Ultra-wideband communication apparatus and methods
US8532586B2 (en) 2001-12-06 2013-09-10 Intellectual Ventures Holding 73 Llc High data rate transmitter and receiver
US8934381B2 (en) 2001-12-31 2015-01-13 Polycom, Inc. Conference endpoint instructing a remote device to establish a new connection
US8223942B2 (en) 2001-12-31 2012-07-17 Polycom, Inc. Conference endpoint requesting and receiving billing information from a conference bridge
US8705719B2 (en) 2001-12-31 2014-04-22 Polycom, Inc. Speakerphone and conference bridge which receive and provide participant monitoring information
US7787605B2 (en) 2001-12-31 2010-08-31 Polycom, Inc. Conference bridge which decodes and responds to control information embedded in audio information
US8023458B2 (en) 2001-12-31 2011-09-20 Polycom, Inc. Method and apparatus for wideband conferencing
US7742588B2 (en) 2001-12-31 2010-06-22 Polycom, Inc. Speakerphone establishing and using a second connection of graphics information
US7978838B2 (en) 2001-12-31 2011-07-12 Polycom, Inc. Conference endpoint instructing conference bridge to mute participants
US20050213732A1 (en) * 2001-12-31 2005-09-29 Polycom, Inc. Conference bridge which decodes and responds to control information embedded in audio information
US8102984B2 (en) 2001-12-31 2012-01-24 Polycom Inc. Speakerphone and conference bridge which receive and provide participant monitoring information
US20050213726A1 (en) * 2001-12-31 2005-09-29 Polycom, Inc. Conference bridge which transfers control information embedded in audio information between endpoints
US8144854B2 (en) 2001-12-31 2012-03-27 Polycom Inc. Conference bridge which detects control information embedded in audio information to prioritize operations
US8582520B2 (en) 2001-12-31 2013-11-12 Polycom, Inc. Method and apparatus for wideband conferencing
US20050213736A1 (en) * 2001-12-31 2005-09-29 Polycom, Inc. Speakerphone establishing and using a second connection of graphics information
US20050213734A1 (en) * 2001-12-31 2005-09-29 Polycom, Inc. Conference bridge which detects control information embedded in audio information to prioritize operations
US20050213733A1 (en) * 2001-12-31 2005-09-29 Polycom, Inc. Speakerphone and conference bridge which receive and provide participant monitoring information
US20040233836A1 (en) * 2002-03-26 2004-11-25 Atsushi Sumasu Multi-carrier transmission apparatus and multi-carrier transmission method
US7627056B1 (en) * 2002-03-29 2009-12-01 Scientific Research Corporation System and method for orthogonally multiplexed signal transmission and reception on a non-contiguous spectral basis
US20090316568A1 (en) * 2002-03-29 2009-12-24 Harris Fredric J System and method for orthogonally multiplexed signal transmission and reception on a non-contiguous spectral basis
US20060072649A1 (en) * 2002-10-26 2006-04-06 Kyung-Hi Chang Frequency hopping ofdma method using symbols of comb pattern
US7542504B2 (en) * 2002-10-26 2009-06-02 Electronics And Telecommunications Research Institute Frequency hopping ofdma method using symbols of comb pattern
US7433382B1 (en) * 2003-07-07 2008-10-07 Miao George J Spread spectrum based multichannel modulation for ultra wideband communications
US20050025079A1 (en) * 2003-07-18 2005-02-03 Shigeo Terabe Mobile communication system, radio control station, base station and mobile station for the system, and parameter determination method employing parallel combinatory spread-spectrum scheme
US8000340B2 (en) 2003-07-18 2011-08-16 Kabushiki Kaishatoshiba Parameter determination base station employing PCSS scheme
US7292526B2 (en) * 2003-07-18 2007-11-06 Kabushiki Kaisha Toshiba Mobile communication system, radio control station, base station and mobile station for the system, and parameter determination method employing parallel combinatory spread-spectrum scheme
US20070268851A1 (en) * 2003-07-18 2007-11-22 Kabushiki Kaisha Toshiba Mobile communication system, radio control station, base station and mobile station for the system, and parameter determination method employing parallel combinatory spread-spectrum scheme
US8004556B2 (en) 2004-04-16 2011-08-23 Polycom, Inc. Conference link between a speakerphone and a video conference unit
US20080143819A1 (en) * 2004-04-16 2008-06-19 Polycom, Inc. Conference link between a speakerphone and a video conference unit
US8860629B2 (en) 2004-08-18 2014-10-14 Ruckus Wireless, Inc. Dual band dual polarization antenna array
US9077071B2 (en) 2004-08-18 2015-07-07 Ruckus Wireless, Inc. Antenna with polarization diversity
US7652632B2 (en) 2004-08-18 2010-01-26 Ruckus Wireless, Inc. Multiband omnidirectional planar antenna apparatus with selectable elements
US7696946B2 (en) 2004-08-18 2010-04-13 Ruckus Wireless, Inc. Reducing stray capacitance in antenna element switching
US8031129B2 (en) 2004-08-18 2011-10-04 Ruckus Wireless, Inc. Dual band dual polarization antenna array
US8314749B2 (en) 2004-08-18 2012-11-20 Ruckus Wireless, Inc. Dual band dual polarization antenna array
US7498996B2 (en) 2004-08-18 2009-03-03 Ruckus Wireless, Inc. Antennas with polarization diversity
US10181655B2 (en) 2004-08-18 2019-01-15 Arris Enterprises Llc Antenna with polarization diversity
US7965252B2 (en) 2004-08-18 2011-06-21 Ruckus Wireless, Inc. Dual polarization antenna array with increased wireless coverage
US7511680B2 (en) 2004-08-18 2009-03-31 Ruckus Wireless, Inc. Minimized antenna apparatus with selectable elements
US7880683B2 (en) 2004-08-18 2011-02-01 Ruckus Wireless, Inc. Antennas with polarization diversity
US9019165B2 (en) 2004-08-18 2015-04-28 Ruckus Wireless, Inc. Antenna with selectable elements for use in wireless communications
US9837711B2 (en) 2004-08-18 2017-12-05 Ruckus Wireless, Inc. Antenna with selectable elements for use in wireless communications
US20060109067A1 (en) * 2004-11-22 2006-05-25 Ruckus Wireless, Inc. Circuit board having a pereipheral antenna apparatus with selectable antenna elements and selectable phase shifting
US7525486B2 (en) 2004-11-22 2009-04-28 Ruckus Wireless, Inc. Increased wireless coverage patterns
US9379456B2 (en) 2004-11-22 2016-06-28 Ruckus Wireless, Inc. Antenna array
US7498999B2 (en) 2004-11-22 2009-03-03 Ruckus Wireless, Inc. Circuit board having a peripheral antenna apparatus with selectable antenna elements and selectable phase shifting
US9093758B2 (en) 2004-12-09 2015-07-28 Ruckus Wireless, Inc. Coverage antenna apparatus with selectable horizontal and vertical polarization elements
US10056693B2 (en) 2005-01-21 2018-08-21 Ruckus Wireless, Inc. Pattern shaping of RF emission patterns
US9270029B2 (en) 2005-01-21 2016-02-23 Ruckus Wireless, Inc. Pattern shaping of RF emission patterns
US8199791B2 (en) 2005-06-08 2012-06-12 Polycom, Inc. Mixed voice and spread spectrum data signaling with enhanced concealment of data
US7796565B2 (en) * 2005-06-08 2010-09-14 Polycom, Inc. Mixed voice and spread spectrum data signaling with multiplexing multiple users with CDMA
US20070047624A1 (en) * 2005-06-08 2007-03-01 Polycom, Inc Mixed voice and spread spectrum data signaling with enhanced concealment of data
US8126029B2 (en) 2005-06-08 2012-02-28 Polycom, Inc. Voice interference correction for mixed voice and spread spectrum data signaling
US20060282184A1 (en) * 2005-06-08 2006-12-14 Polycom, Inc. Voice interference correction for mixed voice and spread spectrum data signaling
US20070047626A1 (en) * 2005-06-08 2007-03-01 Polycom, Inc Mixed voice and spread spectrum data signaling with multiplexing multiple users with cdma
US8704720B2 (en) 2005-06-24 2014-04-22 Ruckus Wireless, Inc. Coverage antenna apparatus with selectable horizontal and vertical polarization elements
US8068068B2 (en) 2005-06-24 2011-11-29 Ruckus Wireless, Inc. Coverage antenna apparatus with selectable horizontal and vertical polarization elements
US9577346B2 (en) 2005-06-24 2017-02-21 Ruckus Wireless, Inc. Vertical multiple-input multiple-output wireless antennas
US7646343B2 (en) 2005-06-24 2010-01-12 Ruckus Wireless, Inc. Multiple-input multiple-output wireless antennas
US7675474B2 (en) 2005-06-24 2010-03-09 Ruckus Wireless, Inc. Horizontal multiple-input multiple-output wireless antennas
US8836606B2 (en) 2005-06-24 2014-09-16 Ruckus Wireless, Inc. Coverage antenna apparatus with selectable horizontal and vertical polarization elements
US7639106B2 (en) 2006-04-28 2009-12-29 Ruckus Wireless, Inc. PIN diode network for multiband RF coupling
US8686905B2 (en) 2007-01-08 2014-04-01 Ruckus Wireless, Inc. Pattern shaping of RF emission patterns
US8723741B2 (en) 2009-03-13 2014-05-13 Ruckus Wireless, Inc. Adjustment of radiation patterns utilizing a position sensor
US8217843B2 (en) 2009-03-13 2012-07-10 Ruckus Wireless, Inc. Adjustment of radiation patterns utilizing a position sensor
US9419344B2 (en) 2009-05-12 2016-08-16 Ruckus Wireless, Inc. Mountable antenna elements for dual band antenna
US8698675B2 (en) 2009-05-12 2014-04-15 Ruckus Wireless, Inc. Mountable antenna elements for dual band antenna
US10224621B2 (en) 2009-05-12 2019-03-05 Arris Enterprises Llc Mountable antenna elements for dual band antenna
US9407012B2 (en) 2010-09-21 2016-08-02 Ruckus Wireless, Inc. Antenna with dual polarization and mountable antenna elements
US9226146B2 (en) 2012-02-09 2015-12-29 Ruckus Wireless, Inc. Dynamic PSK for hotspots
US8756668B2 (en) 2012-02-09 2014-06-17 Ruckus Wireless, Inc. Dynamic PSK for hotspots
US10186750B2 (en) 2012-02-14 2019-01-22 Arris Enterprises Llc Radio frequency antenna array with spacing element
US9634403B2 (en) 2012-02-14 2017-04-25 Ruckus Wireless, Inc. Radio frequency emission pattern shaping
US10734737B2 (en) 2012-02-14 2020-08-04 Arris Enterprises Llc Radio frequency emission pattern shaping
US9092610B2 (en) 2012-04-04 2015-07-28 Ruckus Wireless, Inc. Key assignment for a brand
US9570799B2 (en) 2012-09-07 2017-02-14 Ruckus Wireless, Inc. Multiband monopole antenna apparatus with ground plane aperture
US10230161B2 (en) 2013-03-15 2019-03-12 Arris Enterprises Llc Low-band reflector for dual band directional antenna
US10545245B2 (en) * 2014-09-16 2020-01-28 Nottingham Scientific Limited GNSS jamming signal detection
US10720959B2 (en) * 2017-10-12 2020-07-21 British Cayman Islands Intelligo Technology Inc. Spread spectrum based audio frequency communication system

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