AT110480T - Access control device. - Google Patents

Access control device.

Info

Publication number
AT110480T
AT110480T AT88302888T AT88302888T AT110480T AT 110480 T AT110480 T AT 110480T AT 88302888 T AT88302888 T AT 88302888T AT 88302888 T AT88302888 T AT 88302888T AT 110480 T AT110480 T AT 110480T
Authority
AT
Austria
Prior art keywords
control device
access control
access
device
Prior art date
Application number
AT88302888T
Other languages
German (de)
Inventor
Brian John Dr Stanier
Harold Dodd
Original Assignee
Identec Ltd
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
Priority to GB878707672A priority Critical patent/GB8707672D0/en
Application filed by Identec Ltd filed Critical Identec Ltd
Priority to CA 594391 priority patent/CA1337946C/en
Priority to US07/674,655 priority patent/US5339073A/en
Publication of AT110480T publication Critical patent/AT110480T/en

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10019Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers.
    • G06K7/10029Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers. the collision being resolved in the time domain, e.g. using binary tree search or RFID responses allocated to a random time slot
    • G06K7/10039Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers. the collision being resolved in the time domain, e.g. using binary tree search or RFID responses allocated to a random time slot interrogator driven, i.e. synchronous
    • G06K7/10049Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers. the collision being resolved in the time domain, e.g. using binary tree search or RFID responses allocated to a random time slot interrogator driven, i.e. synchronous binary tree
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K17/00Methods or arrangements for effecting co-operative working between equipments covered by two or more of the preceding main groups, e.g. automatic card files incorporating conveying and reading operations
    • G06K17/0022Methods or arrangements for effecting co-operative working between equipments covered by two or more of the preceding main groups, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/0008General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME 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
    • G07C9/00Individual entry or exit registers
    • G07C9/00007Access-control involving the use of a pass
    • G07C9/00111Access-control involving the use of a pass the pass performing a presence indicating function, e.g. identification tag or transponder
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME 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
    • G07C9/00Individual entry or exit registers
    • G07C9/00007Access-control involving the use of a pass
    • G07C9/00119Access-control involving the use of a pass the pass containing active electronic elements
AT88302888T 1987-03-25 1988-03-30 Access control device. AT110480T (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB878707672A GB8707672D0 (en) 1987-03-31 1987-03-31 Access control equipment
CA 594391 CA1337946C (en) 1987-03-25 1989-03-21 Access control equipment
US07/674,655 US5339073A (en) 1987-03-31 1991-03-25 Access control equipment and method for using the same

Publications (1)

Publication Number Publication Date
AT110480T true AT110480T (en) 1994-09-15

Family

ID=27168249

Family Applications (1)

Application Number Title Priority Date Filing Date
AT88302888T AT110480T (en) 1987-03-25 1988-03-30 Access control device.

Country Status (5)

Country Link
US (1) US5339073A (en)
EP (1) EP0285419B1 (en)
AT (1) AT110480T (en)
DE (2) DE3851168D1 (en)
GB (1) GB2202981B (en)

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Also Published As

Publication number Publication date
EP0285419A3 (en) 1989-08-16
EP0285419A2 (en) 1988-10-05
GB8807742D0 (en) 1988-05-05
GB2202981A (en) 1988-10-05
EP0285419B1 (en) 1994-08-24
GB2202981B (en) 1991-04-03
DE3851168T2 (en) 1995-03-30
DE3851168D1 (en) 1994-09-29
US5339073A (en) 1994-08-16

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