DE69108721T2 - Abfrage-antwortsystem. - Google Patents

Abfrage-antwortsystem.

Info

Publication number
DE69108721T2
DE69108721T2 DE69108721T DE69108721T DE69108721T2 DE 69108721 T2 DE69108721 T2 DE 69108721T2 DE 69108721 T DE69108721 T DE 69108721T DE 69108721 T DE69108721 T DE 69108721T DE 69108721 T2 DE69108721 T2 DE 69108721T2
Authority
DE
Germany
Prior art keywords
response system
query response
query
response
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 - Lifetime
Application number
DE69108721T
Other languages
English (en)
Other versions
DE69108721D1 (de
Inventor
Christopher Hook
Christopher Hall
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.)
Kasten Chase Applied Res Ltd
Original Assignee
Disys Corp
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 Disys Corp filed Critical Disys Corp
Application granted granted Critical
Publication of DE69108721D1 publication Critical patent/DE69108721D1/de
Publication of DE69108721T2 publication Critical patent/DE69108721T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009—Methods 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
    • G06K7/10019—Methods 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.
    • G06K7/10069—Methods 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 frequency domain, e.g. by hopping from one frequency to the other
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/0723—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/0008—General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
    • 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
    • G07C9/20—Individual registration on entry or exit involving the use of a pass
    • G07C9/28—Individual registration on entry or exit involving the use of a pass the pass enabling tracking or indicating presence
DE69108721T 1990-05-01 1991-05-01 Abfrage-antwortsystem. Expired - Lifetime DE69108721T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB909009739A GB9009739D0 (en) 1990-05-01 1990-05-01 Transponder system
PCT/CA1991/000147 WO1991017515A1 (en) 1990-05-01 1991-05-01 Transponder system

Publications (2)

Publication Number Publication Date
DE69108721D1 DE69108721D1 (de) 1995-05-11
DE69108721T2 true DE69108721T2 (de) 1996-01-18

Family

ID=10675265

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69108721T Expired - Lifetime DE69108721T2 (de) 1990-05-01 1991-05-01 Abfrage-antwortsystem.

Country Status (7)

Country Link
US (1) US5450492A (de)
EP (1) EP0527172B1 (de)
AU (1) AU7776791A (de)
CA (1) CA2081752C (de)
DE (1) DE69108721T2 (de)
GB (1) GB9009739D0 (de)
WO (1) WO1991017515A1 (de)

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Also Published As

Publication number Publication date
AU7776791A (en) 1991-11-27
CA2081752A1 (en) 1991-11-02
EP0527172A1 (de) 1993-02-17
CA2081752C (en) 1999-07-27
EP0527172B1 (de) 1995-04-05
WO1991017515A1 (en) 1991-11-14
GB9009739D0 (en) 1990-06-20
DE69108721D1 (de) 1995-05-11
US5450492A (en) 1995-09-12

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