IN159180B - - Google Patents

Info

Publication number
IN159180B
IN159180B IN30/DEL/83A IN30DE1983A IN159180B IN 159180 B IN159180 B IN 159180B IN 30DE1983 A IN30DE1983 A IN 30DE1983A IN 159180 B IN159180 B IN 159180B
Authority
IN
India
Prior art keywords
sequence
stations
station
frequency
instant
Prior art date
Application number
IN30/DEL/83A
Other languages
English (en)
Inventor
Paul Wilkinson Dent
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
Publication of IN159180B publication Critical patent/IN159180B/en

Links

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

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)
IN30/DEL/83A 1982-01-27 1983-01-18 IN159180B (de)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
IN159180B true IN159180B (de) 1987-04-04

Family

ID=10527920

Family Applications (1)

Application Number Title Priority Date Filing Date
IN30/DEL/83A IN159180B (de) 1982-01-27 1983-01-18

Country Status (7)

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

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
DE69230768T2 (de) * 1991-08-23 2000-09-28 Kabushiki Kaisha Toshiba, Kawasaki Funkinformations- und kommunikationssystem mit einem mehrträger-spreizspektrum-übertragungssystem
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
GB9508885D0 (en) * 1995-05-02 1995-06-21 Plessey Semiconductors Ltd Wireless local area networks
GB2300547B (en) * 1995-05-02 1999-08-25 Plessey Semiconductors Ltd Wireless local area neworks
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
WO1999066653A1 (de) * 1998-06-18 1999-12-23 Siemens Aktiengesellschaft Verfahren und vorrichtung zum umsetzen einer zufallszahlen-sequenz in trägerfrequenzen für eine mobilfunkübertragung
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
EP4053790A4 (de) * 2019-10-31 2022-12-07 NEC Corporation Bildverarbeitungsvorrichtung, bildverarbeitungsverfahren und nichtflüchtiges, computerlesbares medium mit darauf gespeichertem bildverarbeitungsprogramm
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
GB2114402A (en) 1983-08-17
DE3360246D1 (en) 1985-07-18
EP0084967A2 (de) 1983-08-03
JPH0234499B2 (de) 1990-08-03
AU1062383A (en) 1983-08-04
AU553652B2 (en) 1986-07-24
ATE13789T1 (de) 1985-06-15
EP0084967A3 (en) 1983-08-10
EP0084967B1 (de) 1985-06-12
GB2114402B (en) 1985-06-05
JPS58161438A (ja) 1983-09-26

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