US6031815A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Information carrier containing auxiliary information, reading device and method of manufacturing such an information carrier
Assignee: US Philips Corp
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Filing: 1997-06-11
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Granted: 2000-02-29
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Expires: 2017-06-11
Abstract
Abstract A system for controlled reproduction of information according to the invention comprises an information carrier and a reading device. The information carrier contains information in blocks written in a track. The information carrier has reference patterns which divide the track into sectors for writing the information blocks, and auxiliary information written in the reference patterns. The auxiliary information is related to the information, for example, a decoding key, access code or digital signature. The reading device comprises a demodulation means for recovering both the information and the auxiliary information. The device may include means for processing the information and/or auxiliary information in dependence on the auxiliary information. Since the auxiliary information cannot be transferred to an illegal copy, this copy is unusable.
Inventors
- 👤 Jacobus P. J. Heemskerk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:49
CPC Classifications
G; G11; G11B; G11B7/00; G11B7/24; G11B7/2407; G11B7/24073; G11B7/007; G11B7/00745; G11B20/00; G11B20/00086; G11B20/00094; G11B20/00123; G11B20/00137; G11B20/00152; G11B20/0021; G11B20/00217; G11B20/00253; G11B20/00405; G11B20/00572; G11B20/00615; G11B20/0063; G11B27/00; G11B27/10; G11B27/19; G11B27/28; G11B27/30; G11B27/3027; G11B27/36; G11B7/24085; H; H04; H04N; H04N5/00; H04N5/76; H04N5/91; H04N5/913; G06; G06F; G06F2211/00; G06F2211/007; G11B7/26; H04N2005/91307; H04N2005/91321; H04N2005/91342; H04N2005/91357; H04N2005/91364; H04N5/78; H04N5/781; H04N5/84; H04N5/85; H04N5/907; H04N9/00; H04N9/79; H04N9/80; H04N9/804; H04N9/8042
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
46 words
An information carrier comprising: a track for writing patterns which represent first information; and reference patterns on the information writing portion of the track which divide the track into multiple areas for writing the first information in blocks in the track, and which represent auxiliary information.
Claim 2
Dependent Claim
46 words
An information carrier comprising: a track for writing patterns which represent first information; and reference patterns on the information writing portion of the track which divide the track into multiple areas for writing the first information in blocks in the track, and which represent auxiliary information.
Claim 3
Dependent Claim
35 words
The carrier of claim 1, in which the auxiliary information includes check information related to a function of the first information, which check information is used for processing the first information for executing the function.
Claim 4
Dependent Claim
33 words
The carrier of claim 2, in which the first information includes video information which contains a check code, and processing of the video information depends on the check code and the check information.
Claim 5
Dependent Claim
25 words
The carrier of claim 2, in which the first information includes a computer program, and execution of the computer program depends on the check information.
Claim 6
Dependent Claim
28 words
The carrier of claim 1, in which the information carrier is of an optically readable type in which a binary information signal is represented by optically readable patterns.
Claim 7
Dependent Claim
33 words
The carrier of claim 1, in which the information carrier is of a writeable type on and adapted for writing the first information using a writing process, and the reference patterns are non-erasable.
Claim 8
Dependent Claim
23 words
The carrier of claim 1, in which the reference patterns include marks whose center is shifted relative to the middle of the track.
Claim 9
Dependent Claim
20 words
The carrier of claim 1, in which the reference patterns are present only in a predetermined part of the track.
Claim 10
Dependent Claim
18 words
The carrier of claim 1, in which the reference patterns are aligned in adjacent windings of the track.
Claim 11
Dependent Claim
87 words
A reading device for reproducing first information from an information carrier, the information carrier including: a track containing patterns on the information writing portion of the track which represent the first information; and reference patterns which represent related auxiliary information and which divide the track into areas for blocks for writing the first information in blocks, the device comprising: reading means for reading the patterns, and demodulation means for recovering the first information from the read signal and for recovering the auxiliary information from the reference patterns.
Claim 12
Dependent Claim
87 words
A reading device for reproducing first information from an information carrier, the information carrier including: a track containing patterns on the information writing portion of the track which represent the first information; and reference patterns which represent related auxiliary information and which divide the track into areas for blocks for writing the first information in blocks, the device comprising: reading means for reading the patterns, and demodulation means for recovering the first information from the read signal and for recovering the auxiliary information from the reference patterns.
Claim 13
Dependent Claim
27 words
The device of claim 10, in which the device includes: means for information processing, or means for auxiliary information processing depending on the auxiliary information, or both.
Claim 14
Dependent Claim
37 words
The device of claim 11, in which the auxiliary information includes check information related to a function of the first information, and the information processing means are arranged for executing the function depending on the check information.
Claim 15
Dependent Claim
38 words
The device of claim 11, in which the information includes video information which contains a check code, and the information processing means are arranged for processing the video information depending on the check code and the check information.
Claim 16
Dependent Claim
30 words
The device of claim 11, in which the information includes a computer program, and the information processing means are arranged for running the computer program depending on the check information.
Claim 17
Dependent Claim
42 words
The device of claim 11, in which the information includes a computer program, and the means for processing the auxiliary information are arranged for transferring the auxiliary information to the computer program while at least part of the auxiliary information is blocked.
Claim 18
Dependent Claim
36 words
The device of claim 10, further comprising means for detecting the position of the reference patterns relative to another structure of the information carrier selected from the group consisting of: the track; and another reference pattern.
Claim 19
Independent Claim
60 words
A method of manufacturing an information carrier, comprising the steps of: providing a track with a portion for writing patterns which represent first information, and providing reference patterns on the information writing portion of the track, which divide the track into areas for writing the first information in blocks, and which represent auxiliary information which depends on the first information.
Claim 20
Independent Claim
60 words
A method of manufacturing an information carrier, comprising the steps of: providing a track with a portion for writing patterns which represent first information, and providing reference patterns on the information writing portion of the track, which divide the track into areas for writing the first information in blocks, and which represent auxiliary information which depends on the first information.
Claim 21
Dependent Claim
28 words
The carrier of claim 1 in which the reference patterns are positioned adjacent to the track and include servo information for aligning a read/write head with the track.
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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) | 2003-02-28 | 2003-08-30 | 2004-02-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-02-28 | 2007-08-30 | 2008-02-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-02-28 | 2011-08-30 | 2012-02-29 | $7700.00 | Window Closed / Lapsed |