Patent US5202550A successfully refreshed from Google Patents.
US5202550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for machine communication in data transmission
Assignee: Skidata GmbH
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Filing: 1992-07-07
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Granted: 1993-04-13
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Expires: 2012-07-07
Abstract
Abstract For automated communication in a limited acquisition space, for example in order to identify or check an access authorization, use is made of active data supports which comprise a transmitter (15), a receiver (16), a read-write memory, an electric clock, a computer, a display and a power source (7). The checking station is also provided with a transmitter-receiver to check and possibly modify the data. Each transmitter-receiver has a limited communication space, of which the maximum extent is less than the minimum extent of the acquisition space. In this way it is not necessary to plug in the data support, of which a precise point must, however, be deliberately brought close to the checking station. In this way a definite coordination between the checking station and a further data support is prevented.
Inventors
- 👤 Wolfram Kocznar
- 👤 Kurt Wallerstorfer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:18
CPC Classifications
G; G07; G07F; G07F7/00; G07F7/08; G07F7/0866; G06; G06K; G06K19/00; G06K19/06; G06K19/067; G06K19/07; G06K19/077; G06K19/07701; G06K19/07703; G06K7/00; G06K7/0008; G06K7/08; G06K7/082; G06K7/083; G06K7/084; G06K7/10; G06K7/10544; G06K7/10821; G06K7/1097; G06Q; G06Q20/00; G06Q20/30; G06Q20/36; G06Q20/363; G07B; G07B15/00; G07B15/02; G07B15/04; G07C; G07C9/00; G07C9/10; G07C9/20; G07C9/28
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
199 words
A data carrier for a non-contact remote data communication with a control station, the control station controlling a passage to one of a plurality of different areas or spaces by checking and/or changing data of authorization of passages on the data carrier when the data carrier is approached to the control station, the data carrier comprising: a memory designed to store data of at least two independent authorizations, each authorization being specific to one of the different areas or spaces; A microprocessor, the microprocessor partially comprising the memory, the microprocessor further comprising means for performing discretionary functions on the data of each authorization and further comprising means for controlling operations of the data carrier; a power-supply unit for providing power to the data carrier; a data sending-receiving unit for receiving data from the control unit and transmitting data to the control unit; an electronic clockwork for maintaining an indication of the time of day; a digital display for selectively displaying the data of each authorization stored in the microprocessor; an operating button for selecting what will be displayed on the digital display; and a fastening means for connection of the data carrier to the owner of the data carrier.
Claim 2
Dependent Claim
199 words
A data carrier for a non-contact remote data communication with a control station, the control station controlling a passage to one of a plurality of different areas or spaces by checking and/or changing data of authorization of passages on the data carrier when the data carrier is approached to the control station, the data carrier comprising: a memory designed to store data of at least two independent authorizations, each authorization being specific to one of the different areas or spaces; A microprocessor, the microprocessor partially comprising the memory, the microprocessor further comprising means for performing discretionary functions on the data of each authorization and further comprising means for controlling operations of the data carrier; a power-supply unit for providing power to the data carrier; a data sending-receiving unit for receiving data from the control unit and transmitting data to the control unit; an electronic clockwork for maintaining an indication of the time of day; a digital display for selectively displaying the data of each authorization stored in the microprocessor; an operating button for selecting what will be displayed on the digital display; and a fastening means for connection of the data carrier to the owner of the data carrier.
Claim 3
Dependent Claim
17 words
Data carrier according to claim 1 further comprising a means for receiving a picture of the owner.
Claim 4
Dependent Claim
32 words
Data carrier according to claim 2 wherein said means for receiving a picture of the owner comprises a transparent, detachable cover that is provided with an adhesive coating at its inner side.
Claim 5
Dependent Claim
32 words
Data carrier according to claim 3 wherein an individual, visualy readable number is impressed or printed on the picture to be inserted as well as on a part connected to the memory.
Claim 6
Dependent Claim
29 words
Data carrier according to claim 1 wherein the data carrier further comprises a housing on which a wristband is provided as said fastening means, thereby forming a wrist watch.
Claim 7
Dependent Claim
36 words
Data carrier according to claim 1, further comprising a housing and a spring-loaded string wound up in the housing and having an outside end, a key ring being provided at said end as said fastening means.
Claim 8
Dependent Claim
23 words
Data carrier according to claim 1, further comprising a stand-by circuit which can be activated by a signal emitted by the control station.
Claim 9
Dependent Claim
16 words
Data carrier according to claim 4, wherein said memory is further adapted to store said number.
Claim 10
Dependent Claim
38 words
A device according to claim 1, wherein the largest reach of the communication space of each sending-receiving unit in an acquisition space for people, particularly in an individual passageway for people, amounts to between 10 and 30 cm.
Claim 11
Dependent Claim
25 words
A device according to claim 1, wherein the sending-receiving unit for radio transmission is designed with a preferred carrier frequency field up to 250 kHz.
Claim 12
Dependent Claim
13 words
A device according to claim 10, wherein the sending-receiving unit has magnetic antennae.
Claim 13
Dependent Claim
34 words
A device according to claim 10, wherein the carrier frequencies for data transmission from the control station to the data carrier, as well as from the data carrier to the control station are different.
Claim 14
Dependent Claim
62 words
A device according to claim 12, wherein the sending-receiving unit of the control station contains a sending oscillator for generating the carrier frequency for data transmission from the control station to the data carrier, and the sending-receiving unit of the data carrier contains a frequency divider for generating the carrier frequency for data transmission from the data carrier to the control station.
Claim 15
Dependent Claim
15 words
A device according to claim 1, wherein each sending-receiving unit is designed for light-wave transmission.
Claim 16
Dependent Claim
16 words
A device according to claim 14, wherein each sending-receiving unit is designed for the infrared field.
Claim 17
Dependent Claim
33 words
Data carrier according to claim 7, wherein said stand-by circuit is adapted to prevent said power supply from providing power to said microprocessor until receipt of said signal emitted by the control station.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-04-12 | 1996-10-12 | 1997-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-04-12 | 2000-10-12 | 2001-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-04-12 | 2004-10-12 | 2005-04-13 | $7700.00 | Window Closed / Lapsed |