DK281287A - Tidssynkronisering med hurtige frekvensskrift - Google Patents

Tidssynkronisering med hurtige frekvensskrift

Info

Publication number
DK281287A
DK281287A DK281287A DK281287A DK281287A DK 281287 A DK281287 A DK 281287A DK 281287 A DK281287 A DK 281287A DK 281287 A DK281287 A DK 281287A DK 281287 A DK281287 A DK 281287A
Authority
DK
Denmark
Prior art keywords
scripts
time synchronization
quick frequency
quick
frequency
Prior art date
Application number
DK281287A
Other languages
English (en)
Other versions
DK281287D0 (da
Inventor
Keith A Lane
Roger J O'connor
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 DK281287A publication Critical patent/DK281287A/da
Publication of DK281287D0 publication Critical patent/DK281287D0/da

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
DK281287A 1985-10-04 1987-06-02 Tidssynkronisering med hurtige frekvensskrift DK281287D0 (da)

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 (2)

Publication Number Publication Date
DK281287A true DK281287A (da) 1987-06-02
DK281287D0 DK281287D0 (da) 1987-06-02

Family

ID=25131963

Family Applications (1)

Application Number Title Priority Date Filing Date
DK281287A DK281287D0 (da) 1985-10-04 1987-06-02 Tidssynkronisering med hurtige frekvensskrift

Country Status (11)

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

Families Citing this family (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4807248A (en) * 1984-05-23 1989-02-21 Rockwell International Corporation Automatic resynchronization technique
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
US5168520A (en) * 1984-11-30 1992-12-01 Security Dynamics Technologies, Inc. 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
IL97284A (en) * 1990-02-27 1994-06-24 Motorola Inc Method and device for skipping common-carrier frequency
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
US5425049A (en) * 1993-10-25 1995-06-13 Ericsson Ge Mobile Communications Inc. Staggered frequency hopping cellular radio system
US5537434A (en) * 1993-10-25 1996-07-16 Telefonaktiebolaget Lm Ericsson Frequency hopping control channel in a radio communication system
US6292508B1 (en) 1994-03-03 2001-09-18 Proxim, Inc. Method and apparatus for managing power in a frequency hopping medium access control protocol
EP0748540A4 (en) * 1994-03-03 1997-10-29 Proxim Inc PROTOCOL FOR MEDIUM ACCESS CONTROL IN THE FREQUENCY JUMP PROCESS
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
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
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
KR100547845B1 (ko) * 2002-02-07 2006-01-31 삼성전자주식회사 고속 순방향 패킷 접속 방식을 사용하는 통신 시스템에서서빙 고속 공통 제어 채널 셋 정보를 송수신하는 장치 및방법
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
US8379625B2 (en) * 2007-12-18 2013-02-19 Airvana Llc Obtaining time information in a cellular network
US8520659B2 (en) * 2007-12-18 2013-08-27 Airvana Llc Absolute time recovery
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
WO2021062143A1 (en) * 2019-09-27 2021-04-01 Ecolab Usa Inc. Concentrated 2 in 1 dishmachine detergent and rinse aid
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
US4677617A (en) 1987-06-30
WO1987002206A1 (en) 1987-04-09
JPH047860B2 (da) 1992-02-13
EP0239639A1 (en) 1987-10-07
KR880700563A (ko) 1988-03-15
IL79963A (en) 1991-04-15
KR910008756B1 (ko) 1991-10-19
IL79963A0 (en) 1986-12-31
JPS63501677A (ja) 1988-06-23
EP0239639B1 (en) 1990-12-27
CA1251262A (en) 1989-03-14
NZ217515A (en) 1988-08-30
DE3676687D1 (de) 1991-02-07
DK281287D0 (da) 1987-06-02
AU6720287A (en) 1987-04-24
AU577972B2 (en) 1988-10-06

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Legal Events

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AHB Application shelved due to non-payment