DE3676687D1 - Schnelle frequenzsprungzeitsynchronisation. - Google Patents

Schnelle frequenzsprungzeitsynchronisation.

Info

Publication number
DE3676687D1
DE3676687D1 DE8686907025T DE3676687T DE3676687D1 DE 3676687 D1 DE3676687 D1 DE 3676687D1 DE 8686907025 T DE8686907025 T DE 8686907025T DE 3676687 T DE3676687 T DE 3676687T DE 3676687 D1 DE3676687 D1 DE 3676687D1
Authority
DE
Germany
Prior art keywords
time synchronization
frequency hop
fast frequency
hop time
fast
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 - Fee Related
Application number
DE8686907025T
Other languages
English (en)
Inventor
J O'connor
A Lane
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Raytheon Co
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
Application granted granted Critical
Publication of DE3676687D1 publication Critical patent/DE3676687D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • 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
    • H04B1/713—Spread spectrum techniques using frequency hopping
    • H04B1/7156—Arrangements for sequence synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
DE8686907025T 1985-10-04 1986-09-08 Schnelle frequenzsprungzeitsynchronisation. Expired - Fee Related DE3676687D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/784,284 US4677617A (en) 1985-10-04 1985-10-04 Rapid frequency-hopping time synchronization
PCT/US1986/001824 WO1987002206A1 (en) 1985-10-04 1986-09-08 Rapid frequency-hopping time synchronization

Publications (1)

Publication Number Publication Date
DE3676687D1 true DE3676687D1 (de) 1991-02-07

Family

ID=25131963

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686907025T Expired - Fee Related DE3676687D1 (de) 1985-10-04 1986-09-08 Schnelle frequenzsprungzeitsynchronisation.

Country Status (11)

Country Link
US (1) US4677617A (de)
EP (1) EP0239639B1 (de)
JP (1) JPS63501677A (de)
KR (1) KR910008756B1 (de)
AU (1) AU577972B2 (de)
CA (1) CA1251262A (de)
DE (1) DE3676687D1 (de)
DK (1) DK281287D0 (de)
IL (1) IL79963A (de)
NZ (1) NZ217515A (de)
WO (1) WO1987002206A1 (de)

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US4807248A (en) * 1984-05-23 1989-02-21 Rockwell International Corporation Automatic resynchronization technique
US5168520A (en) * 1984-11-30 1992-12-01 Security Dynamics Technologies, Inc. Method and apparatus for personal identification
US4885778A (en) * 1984-11-30 1989-12-05 Weiss Kenneth P Method and apparatus for synchronizing generation of separate, free running, time dependent equipment
US5367572A (en) * 1984-11-30 1994-11-22 Weiss Kenneth P Method and apparatus for personal identification
US4998279A (en) * 1984-11-30 1991-03-05 Weiss Kenneth P Method and apparatus for personal verification utilizing nonpredictable codes and biocharacteristics
US5307372A (en) * 1985-07-19 1994-04-26 Clinicom Incorporated Radio transceiver for transmitting and receiving data packets
GB2229064B (en) * 1987-06-11 1990-12-12 Software Sciences Limited An area communications system
JPH0810840B2 (ja) * 1989-03-24 1996-01-31 宣夫 御子柴 スペクトラム拡散通信装置
US5121408A (en) * 1989-10-16 1992-06-09 Hughes Aircraft Company Synchronization for entry to a network in a frequency hopping communication system
GB9000319D0 (en) * 1990-01-06 1990-06-13 Plessey Co Ltd Frequency hopping system for congested environments
DK0573417T3 (da) * 1990-02-27 1997-10-27 Motorola Inc Fælles bærebølgefrekvenshop
US5130987A (en) * 1990-03-23 1992-07-14 Metricom, Inc. Method for synchronizing a wide area network without global synchronizing
US5311542A (en) * 1990-09-19 1994-05-10 Honeywell Inc. Spread spectrum communication system
US5359595A (en) * 1991-01-09 1994-10-25 Rockwell International Corporation Skywave adaptable network transceiver apparatus and method using a stable probe and traffic protocol
US5237614A (en) * 1991-06-07 1993-08-17 Security Dynamics Technologies, Inc. Integrated network security system
US5291475B1 (en) * 1992-03-27 1995-06-27 Motorola Inc Slot hopped fd/td/cmda
US5381443A (en) * 1992-10-02 1995-01-10 Motorola Inc. Method and apparatus for frequency hopping a signalling channel in a communication system
US5323418A (en) * 1993-01-13 1994-06-21 Motorola, Inc. Code division multiple access (CDMA) inbound messaging system utilizing interference cancellation to recover inbound messages
US7924783B1 (en) * 1994-05-06 2011-04-12 Broadcom Corporation Hierarchical communications system
US5604487A (en) * 1993-07-30 1997-02-18 Lockheed Martin Tactical Systems, Inc. Apparatus and method for user-selective data communication with verification
US5537434A (en) * 1993-10-25 1996-07-16 Telefonaktiebolaget Lm Ericsson Frequency hopping control channel in a radio communication system
US5425049A (en) * 1993-10-25 1995-06-13 Ericsson Ge Mobile Communications Inc. Staggered frequency hopping cellular radio system
WO1995024081A1 (en) * 1994-03-03 1995-09-08 Proxim, Inc. Frequency hopping medium access control protocol
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
US5414731A (en) * 1994-03-18 1995-05-09 International Business Machines Corporation Command set and procedure for synchronization of frequency hopping control clocks
US5809417A (en) * 1994-07-05 1998-09-15 Lucent Technologies Inc. Cordless telephone arranged for operating with multiple portable units in a frequency hopping system
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
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
US5509027A (en) * 1994-12-05 1996-04-16 Motorola, Inc. Synchronization method in a frequency hopping local area network having dedicated control channels
KR0142949B1 (ko) * 1995-06-16 1998-08-01 김광호 이동국과 기지국간의 초기 동기 맞춤시간을 최소화한 주파수 운용 방법
JPH10154948A (ja) * 1996-11-21 1998-06-09 Brother Ind Ltd 周波数ホッピング通信装置
US5940431A (en) * 1996-12-23 1999-08-17 Telefonaktiebolaget Lm Ericsson Access technique of channel hopping communications system
US6389057B1 (en) 1996-12-23 2002-05-14 Telefonaktiebolaget Lm Ericsson (Publ) Access technique of channel hopping communications system
JP3870507B2 (ja) * 1997-09-22 2007-01-17 ソニー株式会社 通信方法、送信方法、受信方法、基地局及び端末装置
GB2342018B (en) 1998-09-24 2003-11-05 Nokia Mobile Phones Ltd Communication network
GB2342017B (en) * 1998-09-24 2003-10-15 Nokia Mobile Phones Ltd Communication network
US7184413B2 (en) * 1999-02-10 2007-02-27 Nokia Inc. Adaptive communication protocol for wireless networks
US6788702B1 (en) 1999-10-15 2004-09-07 Nokia Wireless Routers, Inc. Protocol for neighborhood-established transmission scheduling
US6928061B1 (en) 2000-09-06 2005-08-09 Nokia, Inc. Transmission-scheduling coordination among collocated internet radios
GB2386513B (en) * 2002-02-07 2004-08-25 Samsung Electronics Co Ltd Apparatus and method for transmitting/receiving serving hs-scch set information in an hsdpa communication system
US8121292B2 (en) * 2002-02-26 2012-02-21 Qualcomm Incorporated Method and apparatus for scrambling information bits on a channel in a communications system
US7379447B2 (en) * 2003-05-02 2008-05-27 Microsoft Corporation Slotted seeded channel hopping for capacity improvement in wireless networks
US7308043B1 (en) * 2003-09-22 2007-12-11 Rockwell Collins, Inc. Scrambled chirp frequency jitter for feature suppression
US7577180B2 (en) * 2003-12-18 2009-08-18 Vtech Telecommunications Limited Method and system for maintaining synchronization in low-power mode over a frequency hopping radio link
US7937060B2 (en) * 2006-10-06 2011-05-03 Palo Alto Research Alto Incorporated Self-improving channel-access protocol for ad-hoc networks
US8687562B2 (en) * 2007-07-12 2014-04-01 Lockheed Martin Corporation Wireless network enhancements
US8520659B2 (en) * 2007-12-18 2013-08-27 Airvana Llc Absolute time recovery
US8379625B2 (en) * 2007-12-18 2013-02-19 Airvana Llc Obtaining time information in a cellular network
US8259775B1 (en) 2008-10-17 2012-09-04 Honeywell International, Inc. System, apparatus and method for managing message communications in systems employing frequency hopping
US9735831B1 (en) * 2009-09-22 2017-08-15 Honeywell International Inc. System, apparatus and method for synchronizing communications between devices
US10070402B2 (en) 2014-12-08 2018-09-04 Eaton Intelligent Power Limited Adaptive, predictive synchronization for reducing connection establishment delays in ad-hoc frequency hopping spread spectrum networks
CN107517069B (zh) * 2017-08-22 2020-06-02 深圳市华信天线技术有限公司 跳频同步的方法、装置、接收机以及发射机
US10320442B1 (en) 2018-02-09 2019-06-11 Ademco Inc. High bandwidth channel in a frequency hopping system
CN114222808A (zh) * 2019-09-27 2022-03-22 埃科莱布美国股份有限公司 浓缩二合一洗碗机洗涤剂和漂洗助剂
CN112994742B (zh) * 2019-12-16 2023-03-31 鹤壁天海电子信息系统有限公司 一种跳频同步的实现方法、接收机及通信设备

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1541534C1 (de) * 1966-12-02 1977-11-10 Philips Patentverwaltung Stoerunempfindliches Nachrichten- bzw. Datenuebertragungssystem
GB2100944B (en) * 1981-06-24 1985-03-06 Racal Res Ltd Synchronisation circuits
FR2518338A1 (fr) * 1981-12-15 1983-06-17 Thomson Csf Procede de synchronisation des postes emetteurs-recepteurs d'un reseau a sauts de frequence et poste destine a la mise en oeuvre de ce procede
US4558453A (en) * 1981-12-16 1985-12-10 Harris Corporation Synchronization method and frequency hopping communication system
JPS59133750A (ja) * 1983-01-20 1984-08-01 Nec Corp 同期捕捉回路
US4532635A (en) * 1983-08-19 1985-07-30 Rca Corporation System and method employing two hop spread spectrum signal transmissions between small earth stations via a satellite and a large earth station and structure and method for synchronizing such transmissions
FR2552957B1 (fr) * 1983-09-30 1986-07-25 Trt Telecom Radio Electr Poste emetteur-recepteur pour un systeme de transmission d'informations par evasion de frequences
DE3519996C2 (de) * 1984-06-05 1986-09-04 Siemens AG, 1000 Berlin und 8000 München Synchronisierverfahren
US4597087A (en) * 1984-10-19 1986-06-24 Itt Corporation Frequency hopping data communication system

Also Published As

Publication number Publication date
AU6720287A (en) 1987-04-24
KR880700563A (ko) 1988-03-15
US4677617A (en) 1987-06-30
CA1251262A (en) 1989-03-14
EP0239639A1 (de) 1987-10-07
DK281287A (da) 1987-06-02
AU577972B2 (en) 1988-10-06
WO1987002206A1 (en) 1987-04-09
JPS63501677A (ja) 1988-06-23
JPH047860B2 (de) 1992-02-13
EP0239639B1 (de) 1990-12-27
DK281287D0 (da) 1987-06-02
IL79963A0 (en) 1986-12-31
IL79963A (en) 1991-04-15
KR910008756B1 (ko) 1991-10-19
NZ217515A (en) 1988-08-30

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: RAYTHEON CO. (N.D.GES.D. STAATES DELAWARE), LEXING

8339 Ceased/non-payment of the annual fee