US5787170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Database system with local information remotely supported with dynamic information
Assignee: US Philips Corp
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Filing: 1997-10-06
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Granted: 1998-07-28
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Expires: 2017-10-06
Abstract
Abstract A database system comprises an individual station with berth means for receiving an optically readable information carrier with local information. The system reads the carrier and furthermore receives remotely supplied secondary information. It has a processor for processing both local information and secondary information to produce output information, and a user interface for presenting said output information to a user. In particular, the carrier has a read-only part, and a write part for storage of at least one decryption key. The processor is arranged for decrypting the secondary information using said at least one decryption key.
Inventors
- 👤 Franciscus J. Op De Beek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:17
CPC Classifications
H; H04; H04H; H04H20/00; H04H20/53; H04H20/55; G; G11; G11B; G11B20/00; G11B20/00086; G11B20/00137; G11B20/0021; G11B20/00217; G11B20/00253; G11B20/00485; G11B20/00492; G11B20/00528; G11B20/00731; G11B20/0084; H04H60/00; H04H60/09; H04H60/14; H04H60/16; H04H60/23; G06; G06F; G06F2211/00; G06F2211/007; G11B20/10; G11B20/12; G11B20/1217; G11B2020/1259; H04H60/68; H04H60/70
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
103 words
A database system comprising an individual station having berth means for receiving an optically readable information carrier with local information, and read means for reading said carrier, receiving means for receiving remotely supplied secondary information, processing means for processing local information so read and also said secondary information to produce output information, and user interface means for presenting said output information to a user, characterized in that said carrier has a read-only part, and furthermore a write part accommodating storage of at least one decryption key, said processing means being arranged for decrypting said secondary information using said at least one decryption key.
Claim 2
Dependent Claim
103 words
A database system comprising an individual station having berth means for receiving an optically readable information carrier with local information, and read means for reading said carrier, receiving means for receiving remotely supplied secondary information, processing means for processing local information so read and also said secondary information to produce output information, and user interface means for presenting said output information to a user, characterized in that said carrier has a read-only part, and furthermore a write part accommodating storage of at least one decryption key, said processing means being arranged for decrypting said secondary information using said at least one decryption key.
Claim 3
Dependent Claim
60 words
A database system as claimed in claim 1, said write part accommodating a plurality of locations for a plurality of respective decryption keys, and said processing means being arranged for selecting among said plurality of decryption keys according to a predetermined selecting time schedule, for decrypting said secondary information in a time limited manner using the decryption key so selected.
Claim 4
Dependent Claim
33 words
A database system as claimed in claim 1, wherein said individual station comprises an individual station key, and anyone of said at least one decryption key is privy to said individual station key.
Claim 5
Dependent Claim
42 words
A database system as claimed in claim 3, said processing means being arranged for decrypting said secondary information using a first aggregate of said individual station key and said at least one decryption key, which first aggregate varies with said decryption key.
Claim 6
Dependent Claim
16 words
A database system as claimed in any of claim 1, wherein said write part is write-once.
Claim 7
Dependent Claim
31 words
A database system as claimed in any of claim 1, wherein said processing means are arranged for using said local information and said secondary information in a land vehicle information context.
Claim 8
Dependent Claim
47 words
A database system as claimed in any of claim 1, wherein said station is arranged for decrypting said local information using a second aggregate of the station key and a decryption key present on said carrier, which second aggregate is invariant to said actually selected decryption key.
Claim 9
Dependent Claim
25 words
A database system as claimed in claim 1 and having write means for writing a particular selection from said secondary information on said write part.
Claim 10
Dependent Claim
29 words
A database supersystem comprising a multitude of individual database systems as claimed in claim 7, wherein said second aggregate is uniform in time while using a single said carrier.
Claim 11
Dependent Claim
31 words
A database supersystem comprising a multitude of individual database systems as claimed in claim 4, wherein any of said first or second aggregates is instantaneously uniform over said individual database systems.
Claim 12
Dependent Claim
12 words
A motor vehicle comprising a database system as claimed in claim 1.
Claim 13
Dependent Claim
14 words
A data carrier for use with a database system as claimed in claim 1.
Claim 14
Independent Claim
129 words
A device for combining a first set of information generated remotely from the device and a second set of information from an optically readable record carrier readable by the device, wherein the record carrier includes a decryption key encrypted therein, said device comprising: means for reading the first set of information and the decryption key from the record carrier; means for receiving the second set of information generated remotely from the device; means for processing the first and second sets of information to produce output information to the user of the device, the output information including information from the second set of information from the record carrier and only those portions of the first, remotely generated set of information decryptable with said decryption key read from the record carrier.
Claim 15
Independent Claim
129 words
A device for combining a first set of information generated remotely from the device and a second set of information from an optically readable record carrier readable by the device, wherein the record carrier includes a decryption key encrypted therein, said device comprising: means for reading the first set of information and the decryption key from the record carrier; means for receiving the second set of information generated remotely from the device; means for processing the first and second sets of information to produce output information to the user of the device, the output information including information from the second set of information from the record carrier and only those portions of the first, remotely generated set of information decryptable with said decryption key read from the record carrier.
Claim 16
Dependent Claim
28 words
A device according to claim 13, wherein the record carrier includes a read-only part containing said second set of information and a write part containing said decryption key.
Claim 17
Dependent Claim
58 words
A device according to claim 14, said write part accommodating a plurality of locations for a plurality of respective decryption keys, and said processing means being arranged for selecting among said plurality of decryption keys according to a predetermined selecting time schedule, for decrypting said secondary information in a time limited manner using the decryption key so selected.
Claim 18
Dependent Claim
31 words
A device according to claim 15, wherein said individual station comprises an individual station key, and anyone of said at least one decryption key is privy to said individual station key.
Claim 19
Dependent Claim
40 words
A device according to claim 16, said processing means being arranged for decrypting said secondary information using a first aggregate of said individual station key and said at least one decryption key, which first aggregate varies with said decryption key.
Claim 20
Dependent Claim
31 words
A device according to claim 13, wherein said individual station comprises an individual station key, and anyone of said at least one decryption key is privy to said individual station key.
Claim 21
Dependent Claim
40 words
A device according to claim 18, said processing means being arranged for decrypting said secondary information using a first aggregate of said individual station key and said at least one decryption key, which first aggregate varies with said decryption key.
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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) | 2001-07-27 | 2002-01-26 | 2002-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-07-27 | 2006-01-26 | 2006-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-07-27 | 2010-01-26 | 2010-07-28 | $7700.00 | Window Closed / Lapsed |