FR2603933A1 - Device for control by proximity, in particular of electrical locks - Google Patents

Device for control by proximity, in particular of electrical locks

Info

Publication number
FR2603933A1
FR2603933A1 FR8613106A FR8613106A FR2603933A1 FR 2603933 A1 FR2603933 A1 FR 2603933A1 FR 8613106 A FR8613106 A FR 8613106A FR 8613106 A FR8613106 A FR 8613106A FR 2603933 A1 FR2603933 A1 FR 2603933A1
Authority
FR
France
Prior art keywords
winding
circuit
control
proximity
signal
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.)
Granted
Application number
FR8613106A
Other languages
French (fr)
Other versions
FR2603933B1 (en
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR8613106A priority Critical patent/FR2603933B1/en
Priority to FR8711557A priority patent/FR2619410B2/en
Publication of FR2603933A1 publication Critical patent/FR2603933A1/en
Application granted granted Critical
Publication of FR2603933B1 publication Critical patent/FR2603933B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00182—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with unidirectional data transmission between data carrier and locks
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C2009/00753—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys
    • G07C2009/00769—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means
    • G07C2009/00777—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means by induction

Abstract

The invention relates to electronics. It relates in particular to a device for control by proximity, characterised in that it comprises a stationary circuit I with an alternating-current generator 1, a primary winding 3, to which the A.C. signal is applied, and a detection circuit 4 detecting the impedance variations in the winding 3, and supplying a control signal for a working circuit, the device furthermore comprises a moving circuit II with a secondary winding 5 intended to be located in close proximity to the winding 3, and whose terminals are connected through a converter circuit 7, supplying a direct current powering a generator 8, which produces a coded A.C. signal producing an impedance variation in the winding 5, which is transmitted to the winding 3 and detected by the said detector circuit. The invention applies in particular to the control of electrical locks.
FR8613106A 1986-09-17 1986-09-17 APPROXIMATELY CONTROLLED DEVICE, PARTICULARLY FOR ELECTRIC LOCKS Expired - Fee Related FR2603933B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR8613106A FR2603933B1 (en) 1986-09-17 1986-09-17 APPROXIMATELY CONTROLLED DEVICE, PARTICULARLY FOR ELECTRIC LOCKS
FR8711557A FR2619410B2 (en) 1986-09-17 1987-08-13 APPROXIMATELY CONTROLLED DEVICE, PARTICULARLY FOR ELECTRIC LOCKS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8613106A FR2603933B1 (en) 1986-09-17 1986-09-17 APPROXIMATELY CONTROLLED DEVICE, PARTICULARLY FOR ELECTRIC LOCKS

Publications (2)

Publication Number Publication Date
FR2603933A1 true FR2603933A1 (en) 1988-03-18
FR2603933B1 FR2603933B1 (en) 1994-10-14

Family

ID=9339093

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8613106A Expired - Fee Related FR2603933B1 (en) 1986-09-17 1986-09-17 APPROXIMATELY CONTROLLED DEVICE, PARTICULARLY FOR ELECTRIC LOCKS

Country Status (1)

Country Link
FR (1) FR2603933B1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT395998B (en) * 1991-09-09 1993-04-26 Grundmann Gmbh Geb Arrangement for power and data transmission
EP0745747A1 (en) * 1995-05-27 1996-12-04 Motorola, Inc. A data transfer system and a demodulator therefor
FR2743386A1 (en) * 1996-01-09 1997-07-11 Siemens Ag METHOD FOR CONTROLLING AN ANTI-THEFT SYSTEM, PARTICULARLY FOR A MOTOR VEHICLE, AND ANTI-THEFT SYSTEM CONTROLLED BY SUCH A METHOD
WO1998028510A1 (en) * 1996-12-21 1998-07-02 Mannesmann Vdo Ag Energy transmission device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2634303A1 (en) * 1976-07-30 1978-02-02 Knorr Bremse Gmbh Electronic lock and key system - uses contactless data exchange and compares generated and stored signals
EP0115747A1 (en) * 1983-01-11 1984-08-15 SAET S.p.A. Electronic antitheft device comprising an electronic key
GB2158870A (en) * 1984-05-17 1985-11-20 Waertsilae Oy Ab Locking system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2634303A1 (en) * 1976-07-30 1978-02-02 Knorr Bremse Gmbh Electronic lock and key system - uses contactless data exchange and compares generated and stored signals
EP0115747A1 (en) * 1983-01-11 1984-08-15 SAET S.p.A. Electronic antitheft device comprising an electronic key
GB2158870A (en) * 1984-05-17 1985-11-20 Waertsilae Oy Ab Locking system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IEEE TRANSACTIONS ON CONSUMER ELECTRONICS, vol. CE-30, no. 4, novembre 1984, pages 604-607, IEEE, New York, US, M. FRAGANO: "Solid state key/lock security system" *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT395998B (en) * 1991-09-09 1993-04-26 Grundmann Gmbh Geb Arrangement for power and data transmission
EP0745747A1 (en) * 1995-05-27 1996-12-04 Motorola, Inc. A data transfer system and a demodulator therefor
FR2743386A1 (en) * 1996-01-09 1997-07-11 Siemens Ag METHOD FOR CONTROLLING AN ANTI-THEFT SYSTEM, PARTICULARLY FOR A MOTOR VEHICLE, AND ANTI-THEFT SYSTEM CONTROLLED BY SUCH A METHOD
WO1998028510A1 (en) * 1996-12-21 1998-07-02 Mannesmann Vdo Ag Energy transmission device

Also Published As

Publication number Publication date
FR2603933B1 (en) 1994-10-14

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Legal Events

Date Code Title Description
ST Notification of lapse