IL95819A - סינכרוזונציה לחדירה לרשת בשיטת קשר בתדר תנודות - Google Patents

סינכרוזונציה לחדירה לרשת בשיטת קשר בתדר תנודות

Info

Publication number
IL95819A
IL95819A IL9581990A IL9581990A IL95819A IL 95819 A IL95819 A IL 95819A IL 9581990 A IL9581990 A IL 9581990A IL 9581990 A IL9581990 A IL 9581990A IL 95819 A IL95819 A IL 95819A
Authority
IL
Israel
Prior art keywords
frequency
signals
signal
synchronization
synchronizing
Prior art date
Application number
IL9581990A
Other languages
English (en)
Other versions
IL95819A0 (en
Original Assignee
Hughes Aircraft Co
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 Hughes Aircraft Co filed Critical Hughes Aircraft Co
Publication of IL95819A0 publication Critical patent/IL95819A0/xx
Publication of IL95819A publication Critical patent/IL95819A/he

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/69Spread spectrum techniques
    • H04B1/713Spread spectrum techniques using frequency hopping
    • H04B1/7156Arrangements for sequence synchronisation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • H04B1/709Correlator structure
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/69Spread spectrum techniques
    • H04B1/713Spread spectrum techniques using frequency hopping
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/69Spread spectrum techniques
    • H04B1/713Spread spectrum techniques using frequency hopping
    • H04B1/7156Arrangements for sequence synchronisation
    • H04B2001/71563Acquisition
IL9581990A 1989-10-16 1990-09-26 סינכרוזונציה לחדירה לרשת בשיטת קשר בתדר תנודות IL95819A (he)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/422,257 US5121408A (en) 1989-10-16 1989-10-16 Synchronization for entry to a network in a frequency hopping communication system

Publications (2)

Publication Number Publication Date
IL95819A0 IL95819A0 (en) 1991-06-30
IL95819A true IL95819A (he) 1994-08-26

Family

ID=23674066

Family Applications (1)

Application Number Title Priority Date Filing Date
IL9581990A IL95819A (he) 1989-10-16 1990-09-26 סינכרוזונציה לחדירה לרשת בשיטת קשר בתדר תנודות

Country Status (4)

Country Link
US (1) US5121408A (he)
EP (1) EP0423715B1 (he)
DE (1) DE69027830T2 (he)
IL (1) IL95819A (he)

Families Citing this family (76)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010050943A1 (en) * 1989-08-03 2001-12-13 Mahany Ronald L. Radio frequency communication network having adaptive communication parameters
US7606575B2 (en) * 1988-08-04 2009-10-20 Broadcom Corporation Remote radio data communication system with data rate switching
JP2850569B2 (ja) * 1990-06-01 1999-01-27 セイコーエプソン株式会社 選択呼出受信機
US6374311B1 (en) * 1991-10-01 2002-04-16 Intermec Ip Corp. Communication network having a plurality of bridging nodes which transmit a beacon to terminal nodes in power saving state that it has messages awaiting delivery
US7558557B1 (en) * 1991-11-12 2009-07-07 Broadcom Corporation Low-power messaging in a network supporting roaming terminals
US7415548B2 (en) 1991-05-13 2008-08-19 Broadcom Corporation Communication network having a plurality of bridging nodes which transmits a polling message with backward learning technique to determine communication pathway
US6407991B1 (en) * 1993-05-06 2002-06-18 Intermec Ip Corp. Communication network providing wireless and hard-wired dynamic routing
EP0606396B1 (en) * 1991-10-01 2002-06-12 Norand Corporation A radio frequency local area network
US5517675A (en) * 1991-10-04 1996-05-14 Motorola, Inc. Signal transmission synchronization in a communication system
US5381443A (en) * 1992-10-02 1995-01-10 Motorola Inc. Method and apparatus for frequency hopping a signalling channel in a communication system
US5533046A (en) * 1992-10-08 1996-07-02 Lund; Vanmetre Spread spectrum communication system
US5396541A (en) * 1992-10-23 1995-03-07 At&T Corp. Call handoff in a wireless telephone system
US7917145B2 (en) * 1992-11-02 2011-03-29 Broadcom Corporation Radio frequency local area network
US5546429A (en) * 1992-11-09 1996-08-13 Motorola, Inc. Frequency hopping code division multiple access radio communication unit
US5493698A (en) * 1993-02-26 1996-02-20 Hitachi Denshi Kabushiki Kaisha Radio apparatus for simulataneously transmitting and receiving signals using a simple frequency
US5394433A (en) * 1993-04-22 1995-02-28 International Business Machines Corporation Frequency hopping pattern assignment and control in multiple autonomous collocated radio networks
US5506863A (en) * 1993-08-25 1996-04-09 Motorola, Inc. Method and apparatus for operating with a hopping control channel in a communication system
US5412687A (en) * 1993-10-15 1995-05-02 Proxim Incorporated Digital communications equipment using differential quaternary frequency shift keying
US5442659A (en) * 1993-10-22 1995-08-15 International Business Machines Corporation Radio communications system with fault tolerant frequency hopping synchronization
US5537434A (en) * 1993-10-25 1996-07-16 Telefonaktiebolaget Lm Ericsson Frequency hopping control channel in a radio communication system
EP0748540A4 (en) 1994-03-03 1997-10-29 Proxim Inc PROTOCOL FOR MEDIUM ACCESS CONTROL IN THE FREQUENCY JUMP PROCESS
US6292508B1 (en) 1994-03-03 2001-09-18 Proxim, Inc. Method and apparatus for managing power in a frequency hopping medium access control protocol
US5446769A (en) * 1994-03-04 1995-08-29 Motorola, Inc. Method for providing hand-offs in a frequency hopping communication system
US5511099A (en) * 1994-03-30 1996-04-23 Samsung Electronics Co., Ltd. Passband sync block recovery
US5428637A (en) * 1994-08-24 1995-06-27 The United States Of America As Represented By The Secretary Of The Army Method for reducing synchronizing overhead of frequency hopping communications systems
US5519717A (en) * 1994-08-24 1996-05-21 The United States Of America As Represented By The Secretary Of The Army Method for time drift reduction of frequency hopping network clock
KR0142949B1 (ko) * 1995-06-16 1998-08-01 김광호 이동국과 기지국간의 초기 동기 맞춤시간을 최소화한 주파수 운용 방법
US5875179A (en) * 1996-10-29 1999-02-23 Proxim, Inc. Method and apparatus for synchronized communication over wireless backbone architecture
US5910956A (en) * 1996-11-05 1999-06-08 Northrop Gruman Corporation Random time interval generator
US5978379A (en) 1997-01-23 1999-11-02 Gadzoox Networks, Inc. Fiber channel learning bridge, learning half bridge, and protocol
US5896425A (en) * 1997-02-24 1999-04-20 At&T Wireless Services Inc Non-uniformly spaced tones for synchronization waveform
US5936972A (en) * 1997-06-18 1999-08-10 Motorola, Inc. Syndrome-based channel quality or message structure determiner
IE980749A1 (en) * 1998-03-23 1999-10-20 Armstrong Satellite Data Servi A Satellite Communication System
US7224713B2 (en) * 1998-04-09 2007-05-29 Andrzej Partyka Telemetry system with authentication
EP0955780A1 (de) 1998-04-17 1999-11-10 Alcatel Drahtloses Telekommunikationssystem, Basisstation und mobiles Teilnehmerendgerät, die Funksignale entsprechend einer Frequenzsprungfolge austauschen
US6246713B1 (en) 1998-06-08 2001-06-12 Telefonaktiebolaget Lm Ericsson (Publ) Frequency-hopping in a bandwidth-on-demand system
US6442190B1 (en) 1998-11-10 2002-08-27 The Board Of Regents Of The University Of Nebraska Method and system for self-encoding a sequential string of data symbols for transmission via communication systems
US7430171B2 (en) 1998-11-19 2008-09-30 Broadcom Corporation Fibre channel arbitrated loop bufferless switch circuitry to increase bandwidth without significant increase in cost
US6549784B1 (en) * 1998-12-28 2003-04-15 At&T Corp. Method and apparatus for implementing measurement based dynamic frequency hopping in wireless communication systems
US6434184B2 (en) * 1998-12-30 2002-08-13 International Business Machines Corporation Orthogonal frequency hopping using skip zones
US6897697B2 (en) * 1999-06-28 2005-05-24 Broadcom Corporation Current-controlled CMOS circuit using higher voltage supply in low voltage CMOS process
US6911855B2 (en) * 1999-06-28 2005-06-28 Broadcom Corporation Current-controlled CMOS circuit using higher voltage supply in low voltage CMOS process
US6424177B1 (en) * 1999-06-28 2002-07-23 Broadcom Corporation Universal single-ended parallel bus
US6424194B1 (en) * 1999-06-28 2002-07-23 Broadcom Corporation Current-controlled CMOS logic family
US6967974B1 (en) 1999-09-30 2005-11-22 Andrzej Partyka Transmission of urgent messages in telemetry system
US6377792B1 (en) * 1999-10-22 2002-04-23 Motorola, Inc. Method and apparatus for network-to-user verification of communication devices based on time
US6894975B1 (en) * 2000-01-15 2005-05-17 Andrzej Partyka Synchronization and access of the nodes in a communications network
US6340899B1 (en) * 2000-02-24 2002-01-22 Broadcom Corporation Current-controlled CMOS circuits with inductive broadbanding
US6925105B1 (en) 2000-05-01 2005-08-02 Andrzej Partyka Overhead reduction in system for intermittent transmission
ATE472859T1 (de) * 2000-08-01 2010-07-15 Itron Inc Frequenzspannungsspreizspektrumsystem mit nachlauf hoher empfindlichkeit, sowie synchronisierung für frequenzlabile signale
US7209495B2 (en) 2000-09-28 2007-04-24 Andrzej Partyka Urgent messages and power-up in frequency hopping system for intemittent transmission
US6864558B2 (en) * 2001-05-17 2005-03-08 Broadcom Corporation Layout technique for C3MOS inductive broadbanding
US7212534B2 (en) * 2001-07-23 2007-05-01 Broadcom Corporation Flow based congestion control
US6624699B2 (en) * 2001-10-25 2003-09-23 Broadcom Corporation Current-controlled CMOS wideband data amplifier circuits
US7295555B2 (en) * 2002-03-08 2007-11-13 Broadcom Corporation System and method for identifying upper layer protocol message boundaries
GB0206766D0 (en) * 2002-03-22 2002-05-01 Koninkl Philips Electronics Nv Method of, and apparatus for, determining position
US7555013B2 (en) * 2002-08-12 2009-06-30 Harris Corporation Method and system for the blind determination of frequency hopping system characteristics and synchronization thereto
US7411959B2 (en) * 2002-08-30 2008-08-12 Broadcom Corporation System and method for handling out-of-order frames
US7934021B2 (en) * 2002-08-29 2011-04-26 Broadcom Corporation System and method for network interfacing
US7346701B2 (en) 2002-08-30 2008-03-18 Broadcom Corporation System and method for TCP offload
US8180928B2 (en) * 2002-08-30 2012-05-15 Broadcom Corporation Method and system for supporting read operations with CRC for iSCSI and iSCSI chimney
US7313623B2 (en) * 2002-08-30 2007-12-25 Broadcom Corporation System and method for TCP/IP offload independent of bandwidth delay product
US20040141616A1 (en) * 2003-01-17 2004-07-22 Ibm Corporation Security object with encrypted, spread spectrum data communications
US7362174B2 (en) * 2005-07-29 2008-04-22 Broadcom Corporation Current-controlled CMOS (C3MOS) wideband input data amplifier for reduced differential and common-mode reflection
US7598811B2 (en) * 2005-07-29 2009-10-06 Broadcom Corporation Current-controlled CMOS (C3MOS) fully differential integrated wideband amplifier/equalizer with adjustable gain and frequency response without additional power or loading
KR100867319B1 (ko) * 2005-08-08 2008-11-06 삼성전자주식회사 무선통신시스템에서 비동기 송신 검출 장치 및 방법
US7598788B2 (en) * 2005-09-06 2009-10-06 Broadcom Corporation Current-controlled CMOS (C3MOS) fully differential integrated delay cell with variable delay and high bandwidth
US7769074B2 (en) * 2006-03-08 2010-08-03 Renesas Technology Corporation Detecting and synchronizing to frequency hopped packets
US8165101B2 (en) * 2006-09-29 2012-04-24 Microsoft Corporation Automatic detection of hidden networks
US7852745B2 (en) 2007-03-02 2010-12-14 Signalink Technologies Inc. Non-orthogonal frequency-division multiplexed communication through a non-linear transmission medium
US8249130B2 (en) 2007-06-11 2012-08-21 Broadcom Corporation Method and system for fast synchronization and data reception for frequency hopping wireless communication systems
US8958455B2 (en) * 2013-03-15 2015-02-17 Qualcomm Incorporated Low energy signaling scheme for beacon fencing applications
CN103401583B (zh) * 2013-06-25 2015-12-09 北京溢美四方软件技术有限公司 一种基于伪随机序列特征识别的时钟恢复及校准实现方法
WO2019154518A1 (en) * 2018-02-12 2019-08-15 Intel IP Corporation Methods and devices for device-to-device communications
US11187783B2 (en) 2018-08-14 2021-11-30 Nxp B.V. Radar systems and methods for operating radar systems
EP3972141A1 (en) * 2020-09-22 2022-03-23 Rohde & Schwarz GmbH & Co. KG Communication network and method of time synchronous voice and data transmission

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2100944B (en) * 1981-06-24 1985-03-06 Racal Res Ltd Synchronisation circuits
IL67379A (en) * 1982-12-01 1985-11-29 Tadiran Israel Elect Ind Ltd Real-time frequency management system for hf communication networks
US4761796A (en) * 1985-01-24 1988-08-02 Itt Defense Communications High frequency spread spectrum communication system terminal
US4677617A (en) * 1985-10-04 1987-06-30 Hughes Aircraft Company Rapid frequency-hopping time synchronization

Also Published As

Publication number Publication date
DE69027830D1 (de) 1996-08-22
DE69027830T2 (de) 1996-11-28
EP0423715B1 (en) 1996-07-17
EP0423715A2 (en) 1991-04-24
EP0423715A3 (en) 1992-08-12
US5121408A (en) 1992-06-09
IL95819A0 (en) 1991-06-30

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