GB1256730A - - Google Patents

Info

Publication number
GB1256730A
GB1256730A GB1256730DA GB1256730A GB 1256730 A GB1256730 A GB 1256730A GB 1256730D A GB1256730D A GB 1256730DA GB 1256730 A GB1256730 A GB 1256730A
Authority
GB
United Kingdom
Prior art keywords
register
switch
output
switches
gate
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.)
Expired
Application number
Other languages
English (en)
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 filed Critical
Publication of GB1256730A publication Critical patent/GB1256730A/en
Expired 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
    • G07C9/00658—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
    • G07C9/00698—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 function of displayed informations
GB1256730D 1969-01-15 1969-12-17 Expired GB1256730A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79143969A 1969-01-15 1969-01-15

Publications (1)

Publication Number Publication Date
GB1256730A true GB1256730A (fr) 1971-12-15

Family

ID=25153734

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1256730D Expired GB1256730A (fr) 1969-01-15 1969-12-17

Country Status (6)

Country Link
JP (1) JPS499678B1 (fr)
BR (1) BR7016044D0 (fr)
ES (1) ES375881A1 (fr)
FR (1) FR2041034A1 (fr)
GB (1) GB1256730A (fr)
IL (1) IL33602A (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2459514A1 (fr) * 1979-06-19 1981-01-09 Gao Ges Automation Org Procede d'introduction d'un mot de code personnel dans un lecteur automatique de documents
GB2120434A (en) * 1982-04-22 1983-11-30 Enigma Logic Inc A security system
DE3225754A1 (de) * 1982-07-09 1984-01-12 Hülsbeck & Fürst GmbH & Co KG, 5620 Velbert Verfahren zur schliesswirksamen wechselwirkung eines schluesselartigen teils mit einem schlossartigen teil
GB2143062A (en) * 1983-07-05 1985-01-30 Lin Min Shin Dual control electronics switch apparatus with photoelectric identification and digital code arrangement
US4599489A (en) * 1984-02-22 1986-07-08 Gordian Systems, Inc. Solid state key for controlling access to computer software
GB2244831A (en) * 1990-05-24 1991-12-11 Technistore Limited Control

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2561703B1 (fr) * 1984-03-23 1986-07-25 Genus Int Appareil d'acces a serrure et cle codee

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2459514A1 (fr) * 1979-06-19 1981-01-09 Gao Ges Automation Org Procede d'introduction d'un mot de code personnel dans un lecteur automatique de documents
GB2120434A (en) * 1982-04-22 1983-11-30 Enigma Logic Inc A security system
DE3225754A1 (de) * 1982-07-09 1984-01-12 Hülsbeck & Fürst GmbH & Co KG, 5620 Velbert Verfahren zur schliesswirksamen wechselwirkung eines schluesselartigen teils mit einem schlossartigen teil
GB2143062A (en) * 1983-07-05 1985-01-30 Lin Min Shin Dual control electronics switch apparatus with photoelectric identification and digital code arrangement
US4599489A (en) * 1984-02-22 1986-07-08 Gordian Systems, Inc. Solid state key for controlling access to computer software
GB2244831A (en) * 1990-05-24 1991-12-11 Technistore Limited Control

Also Published As

Publication number Publication date
ES375881A1 (es) 1972-07-01
FR2041034A1 (fr) 1971-01-29
BR7016044D0 (pt) 1973-02-08
JPS499678B1 (fr) 1974-03-06
IL33602A (en) 1973-03-30

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees