Patent EP0361459A2 successfully refreshed from Google Patents.
US6865550B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for secure distribution and playback of digital data
Assignee: Monument Peak Ventures LLC
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Filing: 2000-02-03
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Granted: 2005-03-08
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Expires: 2020-02-03
Abstract
Abstract A method and system for secure distribution and access to digital data, includes providing a plurality of system components; associating a plurality of unique identifiers with different components of the system; and controlling access by the system to the digital data based on a correspondence between the unique identifiers.
Inventors
- 👤 Ronald S. Cok
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:34
CPC Classifications
G; G06; G06Q; G06Q30/00; G06Q30/06; G06F; G06F21/00; G06F21/10
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
131 words
A method for secure distribution and access to digital data, comprising: a) providing an encryption key set having an encryption key and a decryption key that can be divided into multiple parts, each part of which is associated with a component of a secure distribution system; b) encrypting the digital data with the encryption key to produce encrypted digital data; c) supplying the encrypted digital data along with a first part of the decryption key that is associated with the digital data to a playback device; d) supplying a second part of the decryption key that is associated with the playback device to the playback device; and e) combining the parts of the decryption keys in the playback device and using the combined decryption key to decrypt the encrypted digital data.
Claim 2
Independent Claim
131 words
A method for secure distribution and access to digital data, comprising: a) providing an encryption key set having an encryption key and a decryption key that can be divided into multiple parts, each part of which is associated with a component of a secure distribution system; b) encrypting the digital data with the encryption key to produce encrypted digital data; c) supplying the encrypted digital data along with a first part of the decryption key that is associated with the digital data to a playback device; d) supplying a second part of the decryption key that is associated with the playback device to the playback device; and e) combining the parts of the decryption keys in the playback device and using the combined decryption key to decrypt the encrypted digital data.
Claim 3
Dependent Claim
51 words
The method claimed in claim 1 , wherein the digital data and the first part of the decryption key is supplied to the playback device on a medium, and further comprising the steps of embedding a third part of the decryption key that is associated with the medium in the medium.
Claim 4
Independent Claim
82 words
A system for secure distribution and access to digital data, comprising: a) a plurality of system components; b) an encryption key set having an encryption key and a decryption key that can be divided into multiple parts, wherein a part of the decryption key is associated with each of the system components; c) means for encrypting the digital data using the encryption key; and d) means for receiving and combining the parts of the decryption key and decrypting the encrypted digital data.
Claim 5
Independent Claim
82 words
A system for secure distribution and access to digital data, comprising: a) a plurality of system components; b) an encryption key set having an encryption key and a decryption key that can be divided into multiple parts, wherein a part of the decryption key is associated with each of the system components; c) means for encrypting the digital data using the encryption key; and d) means for receiving and combining the parts of the decryption key and decrypting the encrypted digital data.
Claim 6
Dependent Claim
43 words
The system claimed in claim 3 , wherein the system components include the digital data, and a playback device, and wherein the playback device includes the means for receiving and combining the parts of the decryption key and decrypting the encrypted digital data.
Claim 7
Dependent Claim
43 words
The system claimed in claim 4 , wherein the part of the decryption key associated with the digital data is embedded in the digital data, and the part of the decryption key associated with the playback device is stored in the playback device.
Claim 8
Dependent Claim
35 words
The system claimed in claim 5 , wherein the system components further include a digital data medium on which is recorded one of the parts of the decryption key associated with the digital data medium.
References Cited (Backward Citations)
EP0179612B1
Cited
US5068894A
Cited
US5452357A
Cited
US5956408A
Cited
US5715403A
Cited
US5978482A
Cited
US5745568A
Cited
US5870470A
Cited
US6072876A
Cited
US5926624A
Cited
US5937066A
Cited
US6005943A
Cited
US5995624A
Cited
US6170060B1
Cited
US6384893B1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2008-03-07 | 2008-09-06 | 2009-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2012-03-07 | 2012-09-06 | 2013-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2016-03-07 | 2016-09-06 | 2017-03-08 | $7700.00 | Window Closed / Lapsed |