US5265161A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and device for activating a chip card
Assignee: Deutsche Thomson Brandt GmbH
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Filing: 1992-06-10
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Granted: 1993-11-23
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Expires: 2012-06-10
Abstract
Abstract A system for activating an apparatus upon the insertion of a chip card into the apparatus by an authorized user includes a first control unit arranged on the chip card for providing an actuation signal when the chip card is initially inserted into the apparatus. A second control within the apparatus receiving the actuation signal and provides a triggering signal. A regulated voltage generator is responsive to the triggering signal and provides a regulated voltage to the first control unit.
Inventors
- 👤 Jose I. Rodriguez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:22
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/10; G05F1/46; G05F1/468
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
159 words
A method of using a chip card to enable the generation of first and second supply voltages for said chip card by a control apparatus, said method comprising the steps of: generating said first supply voltage at a first output of said control apparatus in response to said chip card being coupled to said control apparatus; applying said first supply voltage to said chip card; generating said second supply voltage at a second output of said control apparatus, said second supply voltage exhibiting an initial voltage level; applying said second supply voltage at said initial voltage level to said chip card while said first supply voltage is applied to said chip card; receiving at an input of said control apparatus a control signal from said chip card indicating a programming voltage level required for activation of said chip card; adjusting said second supply voltage from said initial level to said programming voltage level in response to said control signal.
Claim 2
Independent Claim
159 words
A method of using a chip card to enable the generation of first and second supply voltages for said chip card by a control apparatus, said method comprising the steps of: generating said first supply voltage at a first output of said control apparatus in response to said chip card being coupled to said control apparatus; applying said first supply voltage to said chip card; generating said second supply voltage at a second output of said control apparatus, said second supply voltage exhibiting an initial voltage level; applying said second supply voltage at said initial voltage level to said chip card while said first supply voltage is applied to said chip card; receiving at an input of said control apparatus a control signal from said chip card indicating a programming voltage level required for activation of said chip card; adjusting said second supply voltage from said initial level to said programming voltage level in response to said control signal.
Claim 3
Dependent Claim
28 words
The method of claim 1 wherein said first supply voltage for said chip card is first made available a predetermined time after said control apparatus is turned on.
Claim 4
Dependent Claim
29 words
The method of claim 2 wherein said predetermined time is determined by the time required for said control apparatus to become ready for operation after turning said apparatus on.
Claim 5
Dependent Claim
29 words
The method of claim 3 wherein said adjustment of said second voltage supply level rises from said initial value to said programming voltage level during a predetermined time interval.
Claim 6
Dependent Claim
119 words
Control apparatus for providing first and second supply voltages to a chip card, said control apparatus comprising: means for generating said first and second supply voltages; means for applying said first supply voltage to said chip card in response to said chip card being coupled to said control apparatus; means for applying said second supply voltage at an initial voltage level to said chip card while said first supply voltage is applied to said chip card; and means for adjusting said second supply voltage from said initial value to a programming voltage level required for activation of said chip card in response to a control signal from said chip card indicating the required value of said programming voltage level.
Claim 7
Dependent Claim
119 words
Control apparatus for providing first and second supply voltages to a chip card, said control apparatus comprising: means for generating said first and second supply voltages; means for applying said first supply voltage to said chip card in response to said chip card being coupled to said control apparatus; means for applying said second supply voltage at an initial voltage level to said chip card while said first supply voltage is applied to said chip card; and means for adjusting said second supply voltage from said initial value to a programming voltage level required for activation of said chip card in response to a control signal from said chip card indicating the required value of said programming voltage level.
Claim 8
Dependent Claim
62 words
The system of claim 5 wherein said supply voltage generating means comprises a voltage regulator including a voltage divider having one branch including resistors connected at a node and a plurality of parallel branches, each of said branches including a series connection of a resistor and a switch responsive to said control signal for varying the output voltage of said voltage regulator.
Claim 9
Dependent Claim
31 words
The system of claim 6 wherein said voltage regulation means includes a comparator for comparing the output voltage of said voltage regulator with a reference voltage to regulate said output voltage.
Claim 10
Dependent Claim
28 words
The system of claim 7 wherein said voltage regulation means includes a ballast transistor responsive to said comparator for regulating the output voltage of said voltage regulation means.
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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) | 1996-11-22 | 1997-05-24 | 1997-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-11-22 | 2001-05-24 | 2001-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-11-22 | 2005-05-24 | 2005-11-23 | $7700.00 | Window Closed / Lapsed |