FR2396465A1 - Dispositif commutateur a verrouillage electronique pour un circuit electrique - Google Patents
Dispositif commutateur a verrouillage electronique pour un circuit electriqueInfo
- Publication number
- FR2396465A1 FR2396465A1 FR7720425A FR7720425A FR2396465A1 FR 2396465 A1 FR2396465 A1 FR 2396465A1 FR 7720425 A FR7720425 A FR 7720425A FR 7720425 A FR7720425 A FR 7720425A FR 2396465 A1 FR2396465 A1 FR 2396465A1
- Authority
- FR
- France
- Prior art keywords
- logic circuits
- lock switch
- digit code
- electronic lock
- energised
- 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.)
- Withdrawn
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
- G07C9/00658—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys
- G07C9/00674—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys with switch-buttons
- G07C9/0069—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys with switch-buttons actuated in a predetermined sequence
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Lock And Its Accessories (AREA)
Abstract
L'invention concerne un dispositif commutateur à verrouillage électronique pour un circuit électrique. Le dispositif, subordonnant la commutation du circuit à l'actionnement successif, dans un ordre déterminé constituant un code, d'au moins N moyens d'excitation correspondant respectivement à N bornes d'entrée du dispositif, où N est au moins égal à trois, est caractérisé en ce qu'il comporte un circuit de premier rang comportant une première borne reliée à une entrée d'un circuit ET auto-maintenu, N-1 circuits de n-ième rang où n varie de deux à N inclus, comportant une n-ième borne, un n-1-ième circuit OU auto-maintenu, un n-1-ième inverseur et un n-1-ième circuit ET NON, N moyens d'excitation des bornes par mise à la masse, des moyens pour établir une liaison entre chaque moyen d'excitation et une borne pour établir le code, et des moyens de comparaison entre les signaux de sortie respectifs des N circuits.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7720425A FR2396465A1 (fr) | 1977-06-27 | 1977-06-27 | Dispositif commutateur a verrouillage electronique pour un circuit electrique |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7720425A FR2396465A1 (fr) | 1977-06-27 | 1977-06-27 | Dispositif commutateur a verrouillage electronique pour un circuit electrique |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2396465A1 true FR2396465A1 (fr) | 1979-01-26 |
Family
ID=9192910
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7720425A Withdrawn FR2396465A1 (fr) | 1977-06-27 | 1977-06-27 | Dispositif commutateur a verrouillage electronique pour un circuit electrique |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2396465A1 (fr) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3576536A (en) * | 1968-04-05 | 1971-04-27 | James G Wolfe | Electronic code permutation locking apparatus |
US3656114A (en) * | 1968-05-07 | 1972-04-11 | Tore Gottfrid Hesselgren | Electronic lock arrangement having parallel coded input |
US3805246A (en) * | 1972-05-08 | 1974-04-16 | Univ Notra Dame Du Lac | Coded access device |
US3829834A (en) * | 1973-09-10 | 1974-08-13 | J Frankland | Electrical combination lock apparatus |
-
1977
- 1977-06-27 FR FR7720425A patent/FR2396465A1/fr not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3576536A (en) * | 1968-04-05 | 1971-04-27 | James G Wolfe | Electronic code permutation locking apparatus |
US3656114A (en) * | 1968-05-07 | 1972-04-11 | Tore Gottfrid Hesselgren | Electronic lock arrangement having parallel coded input |
US3805246A (en) * | 1972-05-08 | 1974-04-16 | Univ Notra Dame Du Lac | Coded access device |
US3829834A (en) * | 1973-09-10 | 1974-08-13 | J Frankland | Electrical combination lock apparatus |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |