DE3360246D1 - Radio communication system - Google Patents

Radio communication system

Info

Publication number
DE3360246D1
DE3360246D1 DE8383300320T DE3360246T DE3360246D1 DE 3360246 D1 DE3360246 D1 DE 3360246D1 DE 8383300320 T DE8383300320 T DE 8383300320T DE 3360246 T DE3360246 T DE 3360246T DE 3360246 D1 DE3360246 D1 DE 3360246D1
Authority
DE
Germany
Prior art keywords
sequence
stations
station
communication system
radio communication
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
DE8383300320T
Other languages
German (de)
English (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
Application granted granted Critical
Publication of DE3360246D1 publication Critical patent/DE3360246D1/de
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04KSECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00Secret communication
    • H04K1/003Secret communication by varying carrier frequency at or within predetermined or random intervals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Radio Relay Systems (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
DE8383300320T 1982-01-27 1983-01-21 Radio communication system Expired DE3360246D1 (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
DE3360246D1 true DE3360246D1 (en) 1985-07-18

Family

ID=10527920

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8383300320T Expired DE3360246D1 (en) 1982-01-27 1983-01-21 Radio communication system

Country Status (7)

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

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
US5561686A (en) * 1991-08-23 1996-10-01 Kabushiki Kaisha Toshiba Radio information communication system using multi-carrier spread spectrum transmission system
CN1088035A (zh) * 1992-04-15 1994-06-15 客运电迅传送有限公司 信号分配系统
US5533046A (en) * 1992-10-08 1996-07-02 Lund; Vanmetre Spread spectrum communication 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
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
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
CA2300064A1 (en) * 1997-08-14 1999-02-25 Siemens Aktiengesellschaft Method and device for generating a random number sequence for carrier frequencies of a mobile radio transmission
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
US20220395193A1 (en) * 2019-06-26 2022-12-15 Nec Corporation Height estimation apparatus, height estimation method, and non-transitory computer readable medium storing program
US12424017B2 (en) * 2019-10-31 2025-09-23 Nec Corporation Human skeleton image apparatus, method, and non-transitory computer readable medium
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
IN159180B (cs) 1987-04-04
JPS58161438A (ja) 1983-09-26
EP0084967B1 (en) 1985-06-12
ATE13789T1 (de) 1985-06-15
AU553652B2 (en) 1986-07-24
AU1062383A (en) 1983-08-04
GB2114402B (en) 1985-06-05
EP0084967A3 (en) 1983-08-10
EP0084967A2 (en) 1983-08-03
GB2114402A (en) 1983-08-17
JPH0234499B2 (cs) 1990-08-03

Similar Documents

Publication Publication Date Title
GB2114402B (en) Frequency-hopping radio communication system
JPS6471344A (en) Radio communication system using synchronized frequency hopping transmission
CA2109530A1 (en) Frequency diversity transmitter and receiver system
KR100512543B1 (ko) 무선 원격 통신 방법 및 장치와 무선 원격 통신 시스템
KR960012803A (ko) 동기 통신 환경 제공 방법 및 장치
EP0330222A3 (en) Method and system for switching radio frequency
AU4607393A (en) Method of transmitting timing advance data in GSM network
AU544077B2 (en) Data synchronisation
ES457218A1 (es) Perfeccionamientos en instalaciones de radiotelefonia.
DE69926489D1 (de) Datenübertragung verfahren und system
JPS5665538A (en) Control signal relay system for mobile communication
NZ205661A (en) Cardless telephone coupled by pcmtdm on swept carrier
JPS5533332A (en) Subscriber's radio communication system
JPS5624867A (en) Facsimile simultaneous transmission and reception system
KR100270630B1 (ko) 주파수 도약/시분할 전이중 방식을 사용한 이중 모드단말 장치
JPS5531311A (en) Direct trunk setting system for multi-channel radio communication system
GB1502255A (en) Network radio systems
JPS5525228A (en) Communication facilities
GB632895A (en) Two-way radio communication system
JPS57184345A (en) Transmission controlling system for time-division multidirection multiplex radio communication system
FR2362537A1 (fr) Reseau de transmission a secret par commutation de frequence
JPS647825A (en) Communication equipment
JPS53138621A (en) Radio receiver
JPS54149403A (en) Radio communication system
JPS5266306A (en) System for synchronizing simultaneous radio transmitter*receiver station

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: GEC-MARCONI LTD., STANMORE, GB

8339 Ceased/non-payment of the annual fee