BE898783R - Systeme de communication - Google Patents

Systeme de communication

Info

Publication number
BE898783R
BE898783R BE2/60323A BE2060323A BE898783R BE 898783 R BE898783 R BE 898783R BE 2/60323 A BE2/60323 A BE 2/60323A BE 2060323 A BE2060323 A BE 2060323A BE 898783 R BE898783 R BE 898783R
Authority
BE
Belgium
Prior art keywords
output
followed
signal
communication system
correlators
Prior art date
Application number
BE2/60323A
Other languages
English (en)
Inventor
U Langewellpott
Original Assignee
Int Standard Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Int Standard Electric Corp filed Critical Int Standard Electric Corp
Application granted granted Critical
Publication of BE898783R publication Critical patent/BE898783R/fr

Links

Classifications

    • 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
    • H04B1/66—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 for reducing bandwidth of signals; for improving efficiency of transmission
    • 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

Abstract

Récepteur caractérisé en ce que chacun des corrélateurs de caractères (7(1)-7(16)) a sa sortie connectée à une ligne de délai (10(1)-10(16)) suivie d'un démultiplexeur (20) qui a l'une de ses entrées connectée à la sortie du corrélateur de recherche de synchronisation, est influencé par le signal de sortie de l'étage de décision (15) et est suivi par un circuit régénérateur (22) qui a sa sortie connectée à un détecteur (22) commandant les commutateur d'échantillonnage et aux mélangeur et qui applique à ces derniers un signal ayant une forme d'onde convenant pour une modulation à phase cohérente.
BE2/60323A 1983-01-28 1984-01-30 Systeme de communication BE898783R (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19833302828 DE3302828A1 (de) 1983-01-28 1983-01-28 Empfangsgeraet

Publications (1)

Publication Number Publication Date
BE898783R true BE898783R (fr) 1984-07-30

Family

ID=6189431

Family Applications (1)

Application Number Title Priority Date Filing Date
BE2/60323A BE898783R (fr) 1983-01-28 1984-01-30 Systeme de communication

Country Status (8)

Country Link
US (1) US4587662A (fr)
EP (1) EP0115330A3 (fr)
JP (1) JPS59161146A (fr)
KR (1) KR840007331A (fr)
BE (1) BE898783R (fr)
CH (1) CH662457A5 (fr)
DE (1) DE3302828A1 (fr)
ES (1) ES8503903A1 (fr)

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AU8959191A (en) * 1990-10-23 1992-05-20 Omnipoint Corporation Method and apparatus for establishing spread spectrum communications
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US5694414A (en) * 1991-05-13 1997-12-02 Omnipoint Corporation Multi-band, multi-mode spread-spectrum communication system
US5887020A (en) * 1991-05-13 1999-03-23 Omnipoint Corporation Multi-band, multi-mode spread-spectrum communication system
US5790587A (en) * 1991-05-13 1998-08-04 Omnipoint Corporation Multi-band, multi-mode spread-spectrum communication system
US5796772A (en) * 1991-05-13 1998-08-18 Omnipoint Corporation Multi-band, multi-mode spread-spectrum communication system
US5815525A (en) * 1991-05-13 1998-09-29 Omnipoint Corporation Multi-band, multi-mode spread-spectrum communication system
US5177765A (en) * 1991-06-03 1993-01-05 Spectralink Corporation Direct-sequence spread-spectrum digital signal acquisition and tracking system and method therefor
US5285469A (en) 1991-06-03 1994-02-08 Omnipoint Data Corporation Spread spectrum wireless telephone system
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US5260967A (en) * 1992-01-13 1993-11-09 Interdigital Technology Corporation CDMA/TDMA spread-spectrum communications system and method
US5274675A (en) * 1992-03-12 1993-12-28 Motorola, Inc. Method and apparatus for post-correlation scoring circuit
US5376894A (en) * 1992-12-31 1994-12-27 Pacific Communication Sciences, Inc. Phase estimation and synchronization using a PSK demodulator
FR2707128B1 (fr) * 1993-06-29 1995-08-18 Alcatel Telspace Dispositif de détection de mot unique modulé en BPSK adapté à un modem analogique fonctionnant en mode TMDA et procédé de détection mis en Óoeuvre dans un tel dispositif.
US5546383A (en) * 1993-09-30 1996-08-13 Cooley; David M. Modularly clustered radiotelephone system
US6005856A (en) * 1993-11-01 1999-12-21 Omnipoint Corporation Communication protocol for spread spectrum wireless communication system
US5654978A (en) * 1993-11-01 1997-08-05 Omnipoint Corporation Pulse position modulation with spread spectrum
US6088590A (en) * 1993-11-01 2000-07-11 Omnipoint Corporation Method and system for mobile controlled handoff and link maintenance in spread spectrum communication
US6094575A (en) * 1993-11-01 2000-07-25 Omnipoint Corporation Communication system and method
IL111469A0 (en) * 1993-11-01 1994-12-29 Omnipoint Corp Despreading/demodulating direct sequence spread spectrum signals
US5666379A (en) * 1993-11-01 1997-09-09 Omnipoint Corporation Best-of-M pulse position modulation detector
US5422908A (en) * 1993-11-22 1995-06-06 Interdigital Technology Corp. Phased array spread spectrum system and method
US5659572A (en) 1993-11-22 1997-08-19 Interdigital Technology Corporation Phased array spread spectrum system and method
US5629956A (en) * 1994-09-09 1997-05-13 Omnipoint Corporation Method and apparatus for reception and noncoherent serial correlation of a continuous phase modulated signal
US5610940A (en) * 1994-09-09 1997-03-11 Omnipoint Corporation Method and apparatus for noncoherent reception and correlation of a continous phase modulated signal
US5648982A (en) * 1994-09-09 1997-07-15 Omnipoint Corporation Spread spectrum transmitter
US5881100A (en) * 1994-09-09 1999-03-09 Omnipoint Corporation Method and apparatus for coherent correlation of a spread spectrum signal
US5754585A (en) * 1994-09-09 1998-05-19 Omnipoint Corporation Method and apparatus for serial noncoherent correlation of a spread spectrum signal
US5963586A (en) * 1994-09-09 1999-10-05 Omnipoint Corporation Method and apparatus for parallel noncoherent correlation of a spread spectrum signal
US5692007A (en) * 1994-09-09 1997-11-25 Omnipoint Corporation Method and apparatus for differential phase encoding and decoding in spread-spectrum communication systems with continuous-phase modulation
US5627856A (en) * 1994-09-09 1997-05-06 Omnipoint Corporation Method and apparatus for receiving and despreading a continuous phase-modulated spread spectrum signal using self-synchronizing correlators
US5659574A (en) * 1994-09-09 1997-08-19 Omnipoint Corporation Multi-bit correlation of continuous phase modulated signals
US5757847A (en) * 1994-09-09 1998-05-26 Omnipoint Corporation Method and apparatus for decoding a phase encoded signal
US5832028A (en) * 1994-09-09 1998-11-03 Omnipoint Corporation Method and apparatus for coherent serial correlation of a spread spectrum signal
US5680414A (en) * 1994-09-09 1997-10-21 Omnipoint Corporation Synchronization apparatus and method for spread spectrum receiver
US5856998A (en) * 1994-09-09 1999-01-05 Omnipoint Corporation Method and apparatus for correlating a continuous phase modulated spread spectrum signal
JP3471360B2 (ja) * 1994-09-09 2003-12-02 ザーコム・ワイヤレス・インコーポレイテッド Ｃｐｍスペクトル拡散通信の送信及び受信
US5754584A (en) * 1994-09-09 1998-05-19 Omnipoint Corporation Non-coherent spread-spectrum continuous-phase modulation communication system
US5953370A (en) 1994-09-09 1999-09-14 Omnipoint Corporation Apparatus for receiving and correlating a spread spectrum signal
US5742583A (en) 1994-11-03 1998-04-21 Omnipoint Corporation Antenna diversity techniques
US5784403A (en) * 1995-02-03 1998-07-21 Omnipoint Corporation Spread spectrum correlation using saw device
US5548253A (en) * 1995-04-17 1996-08-20 Omnipoint Corporation Spectrally efficient quadrature amplitude modulator
US5832022A (en) * 1995-06-02 1998-11-03 Omnipoint Corporation Method and apparatus for controlling the modulation index of continuous phase modulated (CPM) signals
US5802046A (en) * 1995-06-05 1998-09-01 Omnipoint Corporation Efficient time division duplex communication system with interleaved format and timing adjustment control
US5959980A (en) 1995-06-05 1999-09-28 Omnipoint Corporation Timing adjustment control for efficient time division duplex communication
US5745484A (en) * 1995-06-05 1998-04-28 Omnipoint Corporation Efficient communication system using time division multiplexing and timing adjustment control
US6356607B1 (en) 1995-06-05 2002-03-12 Omnipoint Corporation Preamble code structure and detection method and apparatus
US5689502A (en) * 1995-06-05 1997-11-18 Omnipoint Corporation Efficient frequency division duplex communication system with interleaved format and timing adjustment control
US5629639A (en) * 1995-06-07 1997-05-13 Omnipoint Corporation Correlation peak detector
US6041046A (en) * 1995-07-14 2000-03-21 Omnipoint Corporation Cyclic time hopping in time division multiple access communication system
US6307868B1 (en) * 1995-08-25 2001-10-23 Terayon Communication Systems, Inc. Apparatus and method for SCDMA digital data transmission using orthogonal codes and a head end modem with no tracking loops
US5825807A (en) * 1995-11-06 1998-10-20 Kumar; Derek D. System and method for multiplexing a spread spectrum communication system
US5966401A (en) * 1995-12-27 1999-10-12 Kumar; Derek D. RF simplex spread spectrum receiver and method with symbol deinterleaving prior to bit estimating
US5949796A (en) 1996-06-19 1999-09-07 Kumar; Derek D. In-band on-channel digital broadcasting method and system
US6141373A (en) * 1996-11-15 2000-10-31 Omnipoint Corporation Preamble code structure and detection method and apparatus
US6282228B1 (en) 1997-03-20 2001-08-28 Xircom, Inc. Spread spectrum codes for use in communication
US6590872B1 (en) * 1997-12-12 2003-07-08 Thomson Licensing S.A. Receiver with parallel correlator for acquisition of spread spectrum digital transmission
US6947469B2 (en) 1999-05-07 2005-09-20 Intel Corporation Method and Apparatus for wireless spread spectrum communication with preamble processing period
US6324209B1 (en) * 2000-02-28 2001-11-27 Golden Bridge Technology Inc. Multi-channel spread spectrum system
US20020105973A1 (en) * 2001-02-02 2002-08-08 Mitsubishi Wireless Communications, Inc Systems and methods for improved time slot synchronization using enhanced two-times oversampling
US7039140B2 (en) * 2001-03-08 2006-05-02 Proxim Wireless Corporation OFDM data demodulators synchronization
US8976981B2 (en) * 2010-10-07 2015-03-10 Blackberry Limited Circuit, system and method for isolating a transducer from an amplifier in an electronic device

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US4007330A (en) * 1975-08-13 1977-02-08 Bunker Ramo Corporation Method and apparatus for demodulation of relative phase modulated binary data
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FR2461411B1 (fr) * 1979-07-13 1985-10-31 Trt Telecom Radio Electr Systeme de transmission de donnees utilisant les principes d'etalement du spectre
US4291410A (en) * 1979-10-24 1981-09-22 Rockwell International Corporation Multipath diversity spread spectrum receiver
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US4550414A (en) * 1983-04-12 1985-10-29 Charles Stark Draper Laboratory, Inc. Spread spectrum adaptive code tracker

Also Published As

Publication number Publication date
EP0115330A2 (fr) 1984-08-08
EP0115330A3 (fr) 1987-09-09
ES529258A0 (es) 1985-03-01
CH662457A5 (de) 1987-09-30
US4587662A (en) 1986-05-06
JPS59161146A (ja) 1984-09-11
KR840007331A (ko) 1984-12-06
JPH0137055B2 (fr) 1989-08-03
ES8503903A1 (es) 1985-03-01
DE3302828A1 (de) 1984-08-02

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: INTERNATIONAL STANDARD ELECTRIC CORP.

Effective date: 19850130