Patent US5572589A successfully refreshed from Google Patents.
US5572589A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disc serialization
Assignee: Microsoft Technology Licensing LLC
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Filing: 1993-12-09
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Granted: 1996-11-05
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Expires: 2013-12-09
Abstract
Abstract Several approaches to serializing a disc may be used in the present invention. First, portions of a disc (such as sector(s) or track(s)) may be physically damaged to create a pattern of damage that somewhat uniquely identifies the disc. A number of different techniques may be used to damage the disc. For instance, laser devices may be used, sharp devices may be used or a master disc may be configured to create the damage. The physical damage may be used in conjunction with soft damage that is encoded in software on the disc. Alternatively, certain soft damage approaches may be used separately to serialize the disc.
Inventors
- 👤 Lester L. Waters
- 👤 Jonathan D. Lazarus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:04
CPC Classifications
G; G06; G06F; G06F21/00; G06F21/70; G06F21/78; G06F21/80; G11; G11B; G11B23/00; G11B23/30; G11B23/38; G11B23/42; G06F2211/00; G06F2211/007; G11B20/00; G11B20/00086; G11B20/00094; G11B20/00123; G11B20/00166; G11B20/00173; G11B20/0021; G11B20/00485; G11B20/00543; G11B20/00557; G11B20/00572; G11B20/00586
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
57 words
A method of serializing a read-only optical disc comprising the steps of: physically damaging a portion of the optical disc to create a pattern of damage; encoding the pattern of damage in an identifying value to distinguish the optical disc from other optical discs; encrypting the identifying value; and marking the optical disc with the encrypted value.
Claim 2
Independent Claim
57 words
A method of serializing a read-only optical disc comprising the steps of: physically damaging a portion of the optical disc to create a pattern of damage; encoding the pattern of damage in an identifying value to distinguish the optical disc from other optical discs; encrypting the identifying value; and marking the optical disc with the encrypted value.
Claim 3
Dependent Claim
47 words
The method of claim 1 wherein the step of physically damaging the portion of the optical disc to create the pattern of damage further comprises the step of using a laser device to physically damage the portion of the optical disc to create the pattern of damage.
Claim 4
Dependent Claim
27 words
The method of claim 2, further comprising the step of encoding values on the optical disc that indicate that a portion of the optical disc is bad.
Claim 5
Dependent Claim
51 words
The method of claim 1 wherein the optical disc includes tracks and wherein the step of physically damaging the portion of the optical disc to create the pattern of damage further comprises the step of physically damaging at least one track of the optical disc to create the pattern of damage.
Claim 6
Dependent Claim
27 words
The method of claim 4, further comprising the step of encoding values on the optical disc that indicate that a portion of the optical disc is bad.
Claim 7
Dependent Claim
38 words
The method of claim 3 wherein the step of encoding the pattern of damage in the identifying value further comprises the step of encoding in the identifying value which tracks have been damaged by the physically damaging step.
Claim 8
Dependent Claim
45 words
The method of claim 1 wherein the optical disc includes sectors and wherein the step of physically damaging the portion of the optical disc to create the pattern of damage further comprises the step of physically damaging at least one sector of the optical disc.
Claim 9
Dependent Claim
39 words
The method of claim 7 wherein the step of encoding the pattern of damage in the identifying value further comprises the step of encoding which of the sectors has been damaged by the damaging step in the identifying value.
Claim 10
Dependent Claim
41 words
The method of claim 1 wherein the optical disc includes a hub and wherein the step of marking the optical disc with the encrypted value further comprises the step of marking the hub of the optical disc with the encrypted value.
Claim 11
Dependent Claim
24 words
The method of claim 1, further comprising the step of using an optical detector to discern the pattern of damage on the optical disc.
Claim 12
Dependent Claim
24 words
The method of claim 1, further comprising the step of reading the optical disc to discern the pattern of damage on the optical disc.
Claim 13
Dependent Claim
63 words
The method of claim 1 wherein the step of physically damaging the portion of the optical disc to create the pattern of damage further comprises the steps of: providing a master for producing the optical disc, the master being constructed to produce the optical disc with the pattern of damage; and producing the optical disc with the pattern of damage using the master.
Claim 14
Dependent Claim
33 words
The method of claim 10, wherein the step of physically damaging the portion of the optical disc comprises the step of physically damaging a portion of the optical disc using a laser device.
Claim 15
Dependent Claim
31 words
The method of claim 12 wherein the step of physically damaging the portion of the optical disc comprises the step of physically damaging at least one track of the optical disc.
Claim 16
Independent Claim
138 words
A method of serializing a first optical disc and a second optical disc, comprising the steps of: physically damaging a portion of the first optical disc to create a first pattern of damage; generating a first identifying value that encodes the first pattern of damage; encrypting the first identifying value; marking the first optical disc with the encrypted first identifying value; Physically damaging a portion of the second optical disc to create a second pattern of damage that differs from the first pattern of damage; generating a second identifying value that encodes the second pattern of damage, the identifying values of the first optical disc and the second optical disc for distinguishing the first optical disc from the second optical disc; encrypting the second identifying value; and marking the second optical disc with the encrypted second identifying value.
Claim 17
Independent Claim
138 words
A method of serializing a first optical disc and a second optical disc, comprising the steps of: physically damaging a portion of the first optical disc to create a first pattern of damage; generating a first identifying value that encodes the first pattern of damage; encrypting the first identifying value; marking the first optical disc with the encrypted first identifying value; Physically damaging a portion of the second optical disc to create a second pattern of damage that differs from the first pattern of damage; generating a second identifying value that encodes the second pattern of damage, the identifying values of the first optical disc and the second optical disc for distinguishing the first optical disc from the second optical disc; encrypting the second identifying value; and marking the second optical disc with the encrypted second identifying value.
Claim 18
Dependent Claim
50 words
The method of claim 15 wherein the step of physically damaging the portion of the first optical disc to create the first pattern of damage further comprises the step of using a laser device to damage the portion of the first optical disc to create the first pattern of damage.
Claim 19
Dependent Claim
51 words
The method of claim 15 wherein the step of physically damaging the portion of the second optical disc to create the second pattern of damage further comprises the step of using a laser device to physically damage the portion of the second optical disc to create the second pattern of damage.
Claim 20
Dependent Claim
64 words
An optical disc comprising: a physically damaged portion that is damaged to create a pattern of damage on the optical disc; a non-damaged portion for storing data in a read-only format; and an encrypted value marker that encrypts an identifying value for distinguishing the optical disc from other optical discs, wherein said identifying value encodes the pattern of damage in the physically damaged portion.
Claim 21
Dependent Claim
64 words
An optical disc comprising: a physically damaged portion that is damaged to create a pattern of damage on the optical disc; a non-damaged portion for storing data in a read-only format; and an encrypted value marker that encrypts an identifying value for distinguishing the optical disc from other optical discs, wherein said identifying value encodes the pattern of damage in the physically damaged portion.
Claim 22
Dependent Claim
31 words
The optical disc of claim 18 wherein the physically damaged portion comprises a plurality of tracks, some of which are damaged to create the pattern of damage on the optical disc.
Claim 23
Dependent Claim
31 words
The optical disc of claim 18 wherein the physically damaged portion comprises a plurality of sectors, some of which are damaged to create the pattern of damage on the optical disc.
Claim 24
Dependent Claim
16 words
The optical disc of claim 18 wherein the encrypted value marker is legible to a viewer.
Claim 25
Independent Claim
76 words
A method of serializing an optical disc comprising the steps of: physically damaging a portion of the optical disc to create a pattern of damage; encoding the pattern of damage in a first value; combining the first value with a second value to produce a combined value; encrypting the combined value to produce an encrypted identifying value; and marking the optical disc with the encrypted identifying value to distinguish the optical disc from other optical discs.
Claim 26
Independent Claim
76 words
A method of serializing an optical disc comprising the steps of: physically damaging a portion of the optical disc to create a pattern of damage; encoding the pattern of damage in a first value; combining the first value with a second value to produce a combined value; encrypting the combined value to produce an encrypted identifying value; and marking the optical disc with the encrypted identifying value to distinguish the optical disc from other optical discs.
Claim 27
Dependent Claim
72 words
The method of claim 18, further comprising the steps of: requiring a user of the optical disc to provide the encrypted identifying value to an authenticator; and authenticating the encrypted identifying value by decrypting the encrypted identifying value provided by the user to extract the first value encoding the pattern of damage and comparing the extracted first value with a first value corresponding to the pattern of damage on the optical disc.
Claim 28
Independent Claim
69 words
A method of serializing a plurality of optical discs comprising the steps of: for each disc, selecting an identifying value that is different from the identifying values of other discs so as to distinguish the disc from other disc; physically damaging a portion of the disc to create a pattern of damage that encodes the identifying value; encrypting the identifying value; and marking the disc with the encrypted value.
Claim 29
Independent Claim
69 words
A method of serializing a plurality of optical discs comprising the steps of: for each disc, selecting an identifying value that is different from the identifying values of other discs so as to distinguish the disc from other disc; physically damaging a portion of the disc to create a pattern of damage that encodes the identifying value; encrypting the identifying value; and marking the disc with the encrypted value.
Claim 30
Independent Claim
98 words
A method of serializing an optical disc and authorizing a user of the optical disc comprising the steps of: physically damaging a portion of the disc to create a pattern of damage; encoding the pattern of damage in an identifying value to distinguish the disc from other discs; encrypting the identifying value; providing the disc with the encrypted value; decrypting the encrypted value; detecting by a disc reader the pattern of damage in the physically damaged portion of the disc; and authorizing the user of the disc when the detected pattern of damage corresponds to the decrypted value.
Claim 31
Independent Claim
98 words
A method of serializing an optical disc and authorizing a user of the optical disc comprising the steps of: physically damaging a portion of the disc to create a pattern of damage; encoding the pattern of damage in an identifying value to distinguish the disc from other discs; encrypting the identifying value; providing the disc with the encrypted value; decrypting the encrypted value; detecting by a disc reader the pattern of damage in the physically damaged portion of the disc; and authorizing the user of the disc when the detected pattern of damage corresponds to the decrypted value.
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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) | 1999-11-05 | 2000-05-06 | 2000-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-11-05 | 2004-05-06 | 2004-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-11-05 | 2008-05-06 | 2008-11-05 | $7700.00 | Window Closed / Lapsed |