EP0084967B1 - Radio communication system - Google Patents

Radio communication system Download PDF

Info

Publication number
EP0084967B1
EP0084967B1 EP83300320A EP83300320A EP0084967B1 EP 0084967 B1 EP0084967 B1 EP 0084967B1 EP 83300320 A EP83300320 A EP 83300320A EP 83300320 A EP83300320 A EP 83300320A EP 0084967 B1 EP0084967 B1 EP 0084967B1
Authority
EP
European Patent Office
Prior art keywords
radio
sequence
frequency
pseudo
sets
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
Application number
EP83300320A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0084967A3 (en
EP0084967A2 (en
Inventor
Paul Wilkinson Dent
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconi Co Ltd
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 Marconi Co Ltd filed Critical Marconi Co Ltd
Priority to AT83300320T priority Critical patent/ATE13789T1/de
Publication of EP0084967A2 publication Critical patent/EP0084967A2/en
Publication of EP0084967A3 publication Critical patent/EP0084967A3/en
Application granted granted Critical
Publication of EP0084967B1 publication Critical patent/EP0084967B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • H04K1/003—Secret communication by varying carrier frequency at or within predetermined or random intervals
EP83300320A 1982-01-27 1983-01-21 Radio communication system Expired EP0084967B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83300320T ATE13789T1 (de) 1982-01-27 1983-01-21 Funkverbindungssystem.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8202357 1982-01-27
GB8202357 1982-01-27

Publications (3)

Publication Number Publication Date
EP0084967A2 EP0084967A2 (en) 1983-08-03
EP0084967A3 EP0084967A3 (en) 1983-08-10
EP0084967B1 true EP0084967B1 (en) 1985-06-12

Family

ID=10527920

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83300320A Expired EP0084967B1 (en) 1982-01-27 1983-01-21 Radio communication system

Country Status (7)

Country Link
EP (1) EP0084967B1 (ja)
JP (1) JPS58161438A (ja)
AT (1) ATE13789T1 (ja)
AU (1) AU553652B2 (ja)
DE (1) DE3360246D1 (ja)
GB (1) GB2114402B (ja)
IN (1) IN159180B (ja)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2129655B (en) * 1982-09-08 1986-02-05 Racal Res Ltd Improvements in and relating to radio communications
IL82561A (en) * 1986-05-27 1991-12-15 Fairchild Weston Systems Inc Secure communication system for multiple remote units
US5056108A (en) * 1990-04-04 1991-10-08 Van Metre Lund Communication system
EP0667695B1 (en) * 1991-08-23 2000-03-08 Kabushiki Kaisha Toshiba Radio information and communication system using multicarrier spread-spectrum transmission system
WO1993021703A1 (en) * 1992-04-15 1993-10-28 Coachline Video Express Pty Ltd Signal distribution system
US5533046A (en) * 1992-10-08 1996-07-02 Lund; Vanmetre Spread spectrum communication system
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
US5463659A (en) * 1994-07-05 1995-10-31 At&T Ipm Corp. Apparatus and method of configuring a cordless telephone for operating in a frequency hopping system
GB2300547B (en) * 1995-05-02 1999-08-25 Plessey Semiconductors Ltd Wireless local area neworks
GB9508885D0 (en) * 1995-05-02 1995-06-21 Plessey Semiconductors Ltd Wireless local area networks
GB9513398D0 (en) * 1995-06-30 1995-09-27 Boateng Jacob K Automatic exchangeless universal radio phone
WO1999009668A1 (de) * 1997-08-14 1999-02-25 Siemens Aktiengesellschaft Verfahren und einrichtung zur erzeugung einer zufallszahlensequenz für trägerfrequenzen einer mobilfunkübertragung
CA2335302A1 (en) * 1998-06-18 1999-12-23 Siemens Aktiengesellschaft Method and apparatus for converting a random number sequence into carrier frequencies for a mobile radiotelephone transmission
US8069468B1 (en) * 2000-04-18 2011-11-29 Oracle America, Inc. Controlling access to information over a multiband network
WO2020261403A1 (ja) * 2019-06-26 2020-12-30 日本電気株式会社 身長推定装置、身長推定方法及びプログラムが格納された非一時的なコンピュータ可読媒体
JP7396364B2 (ja) * 2019-10-31 2023-12-12 日本電気株式会社 画像処理装置、画像処理方法及び画像処理プログラム
JP7355674B2 (ja) 2020-02-18 2023-10-03 株式会社日立製作所 映像監視システムおよび映像監視方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH499931A (de) * 1968-02-12 1970-11-30 Patelhold Patentverwertung Synchronisierverfahren für programmgesteuerte Trägerumtastung
DE1939975A1 (de) * 1969-08-06 1971-02-18 Licentia Gmbh System zur UEbertragung von binaercodierten Nachrichten
DE2457027B2 (de) * 1974-12-03 1977-02-03 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren zum programmieren von anordnungen zum erzeugen zufallsaehnlicher binaerzeichenfolgen

Also Published As

Publication number Publication date
EP0084967A3 (en) 1983-08-10
IN159180B (ja) 1987-04-04
AU553652B2 (en) 1986-07-24
AU1062383A (en) 1983-08-04
EP0084967A2 (en) 1983-08-03
DE3360246D1 (en) 1985-07-18
GB2114402B (en) 1985-06-05
JPS58161438A (ja) 1983-09-26
ATE13789T1 (de) 1985-06-15
JPH0234499B2 (ja) 1990-08-03
GB2114402A (en) 1983-08-17

Similar Documents

Publication Publication Date Title
EP0084967B1 (en) Radio communication system
US4872205A (en) Radio communication system having autonomously selected transmission frequencies
US4829540A (en) Secure communication system for multiple remote units
CA1249343A (en) Radio channel control method for mobile communication system
AU642138B2 (en) Method and apparatus for a distributive wide area network for a land mobile transmission trunked communication system
US5179571A (en) Spread spectrum cellular handoff apparatus and method
CA1145010A (en) Receiver and correlator switching method
US7411936B2 (en) Wireless communication method and apparatus
CA2264746C (en) Radio communications systems and methods for jittered beacon transmission
EP0423715A2 (en) Synchronization for entry to network in a frequency hopping communication system
US5818822A (en) Wireless local area network having interface at each station which ignores messages not retransmitted by repeater
EP0884858B1 (en) Mobile communication system using frequency hopping
EP0452872A2 (en) Cordless key telephone system for covering multiple service areas having exclusively assigned control channels
KR910700581A (ko) 전기통신 시스템
US5377221A (en) Communications system
EP1266534B1 (en) Frequency hopping spread spectrum communication system
EP0741932B1 (en) Method and apparatus for a radio communication system
US7436878B1 (en) Method and apparatus for efficient carrier bin search for a composite spreading code
US4262356A (en) Method and system for synchronizing a TDMA communication network comprising a satellite equipped with several directional beam antennas transmitting signals at various frequencies
CA1055172A (en) Satellite communications system
US4179657A (en) Anti-jamming communication system
US6845087B1 (en) Wideband wireless communications architecture
CA2300068A1 (en) Method and device for generating a carrier frequency
EP0867080B1 (de) Sendeeinrichtungen zur übertragung von funksignalen einer bestimmten sendefrequenz nach einem vorgegebenen übertragungszeitprotokoll
JPH04373331A (ja) 制御信号伝送方法

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): AT BE CH DE FR IT LI NL SE

AK Designated contracting states

Designated state(s): AT BE CH DE FR IT LI NL SE

17P Request for examination filed

Effective date: 19830729

ITF It: translation for a ep patent filed

Owner name: JACOBACCI & PERANI S.P.A.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT BE CH DE FR IT LI NL SE

REF Corresponds to:

Ref document number: 13789

Country of ref document: AT

Date of ref document: 19850615

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3360246

Country of ref document: DE

Date of ref document: 19850718

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19921214

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19921229

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19930112

Year of fee payment: 11

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19930131

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19931228

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19931230

Year of fee payment: 12

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19940121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19940131

Ref country code: BE

Effective date: 19940131

Ref country code: CH

Effective date: 19940131

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19940325

Year of fee payment: 12

BERE Be: lapsed

Owner name: THE MARCONI CY LTD

Effective date: 19940131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19940801

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19950122

EAL Se: european patent in force in sweden

Ref document number: 83300320.5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19950929

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19951003

EUG Se: european patent has lapsed

Ref document number: 83300320.5

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST