FR2801400B1 - Systeme de detection - Google Patents

Systeme de detection

Info

Publication number: FR2801400B1
Authority: FR; France
Prior art keywords: detection system; detection
Prior art date: 1999-03-17
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

FR0014808A

Other languages

English (en)

Other versions

FR2801400A1 (fr

Inventor

Paul David Townsend

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.)

British Telecommunications PLC

Original Assignee

British Telecommunications PLC

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.)

1999-03-17

Filing date

2000-11-13

Publication date

2003-02-07

1999-03-17 Priority claimed from GBGB9906208.5A external-priority patent/GB9906208D0/en

1999-03-29 Priority claimed from GBGB9907321.5A external-priority patent/GB9907321D0/en

2000-11-13 Application filed by British Telecommunications PLC filed Critical British Telecommunications PLC

2001-05-25 Publication of FR2801400A1 publication Critical patent/FR2801400A1/fr

2003-02-07 Application granted granted Critical

2003-02-07 Publication of FR2801400B1 publication Critical patent/FR2801400B1/fr

2020-11-13 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/80—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water
- H04B10/85—Protection from unauthorised access, e.g. eavesdrop protection
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/181—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems
- G08B13/183—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems by interruption of a radiation beam or barrier
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/181—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems
- G08B13/187—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems by interference of a radiation field

Landscapes

Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
General Physics & Mathematics (AREA)
Computer Security & Cryptography (AREA)
Electromagnetism (AREA)
Computer Networks & Wireless Communication (AREA)
Signal Processing (AREA)
Burglar Alarm Systems (AREA)
Geophysics And Detection Of Objects (AREA)

FR0014808A 1999-03-17 2000-11-13 Systeme de detection Expired - Fee Related FR2801400B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
GBGB9906208.5A GB9906208D0 (en)	1999-03-17	1999-03-17	Detection system
GBGB9907321.5A GB9907321D0 (en)	1999-03-29	1999-03-29	Detection system

Publications (2)

Publication Number	Publication Date
FR2801400A1 FR2801400A1 (fr)	2001-05-25
FR2801400B1 true FR2801400B1 (fr)	2003-02-07

Family

ID=26315294

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
FR0014819A Pending FR2801401A1 (fr)	1999-03-17	2000-11-13	Systeme de detection
FR0014808A Expired - Fee Related FR2801400B1 (fr)	1999-03-17	2000-11-13	Systeme de detection

Family Applications Before (1)

Application Number	Title	Priority Date	Filing Date
FR0014819A Pending FR2801401A1 (fr)	1999-03-17	2000-11-13	Systeme de detection

Country Status (2)

Country	Link
FR (2)	FR2801401A1 (fr)
GB (2)	GB2361308B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP2709080A1 (fr) *	2012-09-13	2014-03-19	MBDA UK Limited	Appareil de détection d'occupation de pièce et procédé
GB2505896B (en) *	2012-09-13	2015-09-02	Mbda Uk Ltd	Room occupancy sensing apparatus and method
IN2015DN02057A (fr) *	2012-09-13	2015-08-14	Mbda Uk Ltd

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2492136A1 (fr) *	1980-10-13	1982-04-16	Commissariat Energie Atomique	Barriere inviolable de protection contre les intrusions
EP0093773A1 (fr) *	1981-11-19	1983-11-16	Minnesota Mining And Manufacturing Company	Detecteur optique d'intrusions
DE3447131A1 (de) *	1984-12-22	1986-06-26	Telenot Electronic GmbH, 7080 Aalen	Raumschutzanlage
DE3530646A1 (de) *	1985-08-28	1987-03-12	Telenot Electronic Gmbh	Flaechensicherung
GB2217441A (en) *	1987-12-15	1989-10-25	Plessey Co Plc	Alarm system for enclosures
EP0388352A1 (fr) *	1989-03-15	1990-09-19	Elesta Ag Elektronik	Dispositif pour barrière optique à une seule direction
US5142152A (en) *	1991-01-02	1992-08-25	The Stanley Works	Sliding door sensor
US5233185A (en) *	1992-02-28	1993-08-03	Gmi Holdings, Inc.	Light beam detector for door openers using fiber optics
US5326028A (en) *	1992-08-24	1994-07-05	Sanyo Electric Co., Ltd.	System for detecting indoor conditions and air conditioner incorporating same
ES2101495T3 (es) *	1992-12-24	1997-07-01	British Telecomm	Sistema y metodo para la distribucion de codigos utilizando criptografia cuantica.
EP0776558B1 (fr) *	1994-08-18	2001-06-27	BRITISH TELECOMMUNICATIONS public limited company	Cryptographie quantique
US5886307A (en) *	1997-06-23	1999-03-23	Otis Elevator Company	Safety detection system for sliding doors

2000
- 2000-03-15 GB GB0029101A patent/GB2361308B/en not_active Expired - Fee Related
- 2000-03-15 GB GB0029099A patent/GB2361058B/en not_active Expired - Fee Related
- 2000-11-13 FR FR0014819A patent/FR2801401A1/fr active Pending
- 2000-11-13 FR FR0014808A patent/FR2801400B1/fr not_active Expired - Fee Related

Also Published As

Publication number	Publication date
GB2361058B (en)	2002-03-20
GB0029101D0 (en)	2001-03-21
FR2801400A1 (fr)	2001-05-25
FR2801401A1 (fr)	2001-05-25
GB0029099D0 (en)	2001-03-21
GB2361058A (en)	2001-10-10
GB2361308B (en)	2002-04-10
GB2361308A (en)	2001-10-17

Publication	Publication Date	Title
DE60039455D1 (de)	2008-08-21	Abstandserfassungssystem
FR2782530B1 (fr)	2004-02-20	Systeme de construction
FR2797820B1 (fr)	2006-07-14	Systeme de debrayage
DE50114142D1 (de)	2008-09-04	Objektdetektionssystem
GB2350187B (en)	2004-02-25	Light detection system
FR2801438B1 (fr)	2004-10-22	Systeme de passage de cables
DE60030262D1 (de)	2006-10-05	Sensorsystem
FR2785020B1 (fr)	2002-07-05	Systeme de demarreur-generateur
DE50004430D1 (de)	2003-12-24	Fahrzeugelektrik-konfigurationssystem
GB2355523B (en)	2004-03-10	Detection system
DE69928765D1 (de)	2006-01-12	Inspektionssystem
FR2802271B1 (fr)	2005-02-25	Systeme hydraulique
DE50012718D1 (de)	2006-06-14	Steckverbindungssystem
DE50005621D1 (de)	2004-04-15	Hubschraubergetragene radaranlage
DE60009813D1 (de)	2004-05-19	Elektrooptische Systeme
FR2802175B1 (fr)	2004-11-19	Systeme de ventilation alternee
FR2792898B1 (fr)	2003-05-30	Systeme de freins
FR2795032B1 (fr)	2006-09-29	Systeme de freins
ATA189899A (de)	2000-12-15	Verbindungssystem
DE50009887D1 (de)	2005-05-04	Verbindungssystem
GB9928232D0 (en)	2000-01-26	Detection system
DE50009935D1 (de)	2005-05-04	Verbrennungsaussetzererkennung
FR2801400B1 (fr)	2003-02-07	Systeme de detection
FR2815715B1 (fr)	2003-01-24	Systeme de detection de fumee
FR2789356B1 (fr)	2005-03-04	Systeme de freinage

Legal Events

Date	Code	Title	Description
2004-01-02	ST	Notification of lapse