EP1538578A1 - Dispositif pour détecter la variation de l'intensité de la lumière ambiante - Google Patents

Dispositif pour détecter la variation de l'intensité de la lumière ambiante Download PDF

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Publication number
EP1538578A1
EP1538578A1 EP04028609A EP04028609A EP1538578A1 EP 1538578 A1 EP1538578 A1 EP 1538578A1 EP 04028609 A EP04028609 A EP 04028609A EP 04028609 A EP04028609 A EP 04028609A EP 1538578 A1 EP1538578 A1 EP 1538578A1
Authority
EP
European Patent Office
Prior art keywords
identification code
processing
light intensity
control means
ambient light
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.)
Ceased
Application number
EP04028609A
Other languages
German (de)
English (en)
Inventor
Claudio Ricci
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.)
MICROHARD Srl
Original Assignee
MICROHARD Srl
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 MICROHARD Srl filed Critical MICROHARD Srl
Publication of EP1538578A1 publication Critical patent/EP1538578A1/fr
Ceased legal-status Critical Current

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Classifications

    • 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
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/1895—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using light change detection systems
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation
    • G08B13/14—Mechanical actuation by lifting or attempted removal of hand-portable articles
    • G08B13/1481—Mechanical actuation by lifting or attempted removal of hand-portable articles with optical detection

Definitions

  • the microcontroller 1 can further receive signals also from the switch 5 and, as a consequence of this, can provide for example transmissions of the identification code or of the charging state of the battery or of the state of the switch 5, or allow maintenance of the device according to the invention and variation of constants or variables that affect its operation, such as for example the number of repetitions of the transmission to be performed, the identification code, et cetera.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Selective Calling Equipment (AREA)
EP04028609A 2003-12-05 2004-12-02 Dispositif pour détecter la variation de l'intensité de la lumière ambiante Ceased EP1538578A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI20032386 ITMI20032386A1 (it) 2003-12-05 2003-12-05 Dispositivo rilevatore di variazione della luminosita'
ITMI20032386 2003-12-05

Publications (1)

Publication Number Publication Date
EP1538578A1 true EP1538578A1 (fr) 2005-06-08

Family

ID=34452270

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04028609A Ceased EP1538578A1 (fr) 2003-12-05 2004-12-02 Dispositif pour détecter la variation de l'intensité de la lumière ambiante

Country Status (2)

Country Link
EP (1) EP1538578A1 (fr)
IT (1) ITMI20032386A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201900012729A1 (it) * 2019-07-24 2021-01-24 Petersen Fabio Rocco Valentini Dispositivo antifurto per oggetti da parete

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4122445A (en) * 1975-06-18 1978-10-24 Hokuseki Sangyo Kabushiki Kaisha Breakage detector having a conductive bent metallic leaf spring therein
JPH09274692A (ja) * 1996-04-03 1997-10-21 Tamura Seisakusho Co Ltd 警報装置
GB2313980A (en) * 1996-06-05 1997-12-10 Yale Security Prod Ltd Anti-jamming radio-type burglar alarm
US5936523A (en) * 1998-04-24 1999-08-10 West; Joe F. Device and method for detecting unwanted disposition of the contents of an enclosure
EP1067496A2 (fr) * 1999-07-09 2001-01-10 Watchman Technical Products Inc. Dispositif de sécurité et procédé pour détecter l'ouverture non autorisée des récipients

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4122445A (en) * 1975-06-18 1978-10-24 Hokuseki Sangyo Kabushiki Kaisha Breakage detector having a conductive bent metallic leaf spring therein
JPH09274692A (ja) * 1996-04-03 1997-10-21 Tamura Seisakusho Co Ltd 警報装置
GB2313980A (en) * 1996-06-05 1997-12-10 Yale Security Prod Ltd Anti-jamming radio-type burglar alarm
US5936523A (en) * 1998-04-24 1999-08-10 West; Joe F. Device and method for detecting unwanted disposition of the contents of an enclosure
EP1067496A2 (fr) * 1999-07-09 2001-01-10 Watchman Technical Products Inc. Dispositif de sécurité et procédé pour détecter l'ouverture non autorisée des récipients

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 02 30 January 1998 (1998-01-30) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201900012729A1 (it) * 2019-07-24 2021-01-24 Petersen Fabio Rocco Valentini Dispositivo antifurto per oggetti da parete
WO2021014341A1 (fr) * 2019-07-24 2021-01-28 Valentini Petersen Fabio Rocco Dispositif antivol pour objets montés sur une paroi

Also Published As

Publication number Publication date
ITMI20032386A1 (it) 2005-06-06

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