Patent US6983371B1 successfully refreshed from Google Patents.
US6983371B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Super-distribution of protected digital content
Assignee: Wistron Corp
•
Filing: 2000-11-13
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Granted: 2006-01-03
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Expires: 2020-11-13
Abstract
Abstract Briefly according to the present invention, a system, computer readable medium and method to deliver encrypted digital content to from a first system for playing the content to a second system for playing the content. The method on the first user system comprising the steps of: reading from a computer readable medium metadata which has previously been associated with the content; selecting from the metadata associated content to decrypt; establishing a secure connection with an authorization authority, such as a clearinghouse, for decrypting the key used to encrypt the content; receiving a secure container containing the decrypting key for decrypting at least part of the previously encrypted content as permitted; decrypting the content and then encrypting the content with a new encryption key that is generated locally on the end user system.
Inventors
- 👤 Marco M. Hurtado
- 👤 James C. Mahlbacher
- 👤 Richard L. Spagna
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:14
CPC Classifications
H; H04; H04L; H04L9/00; H04L9/08; H04L9/0816; H04L9/0819; H04L9/083; G; G06; G06F; G06F21/00; G06F21/10; G06Q; G06Q20/00; G06Q20/38; G06Q20/40; G06Q20/401; H04L9/32; H04L9/321; H04L2209/00; H04L2209/60
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
163 words
A method to deliver encrypted digital content from a first system for playing the content to a second system for playing the content, the method on the second system comprising the steps of: reading on a second system from a computer readable medium metadata which has previously been associated with a portion of content, wherein the content is encrypted with a first key associated with the first system; selecting from the metadata associated content to decrypt; establishing a secure transmission with an authorization authority for decrypting the content; and receiving a decrypting key for decrypting at least part of the previously encrypted content stored on the computer readable medium as permitted by the authorization authority; decrypting at least part of the previously encrypted content as permitted by the authorization authority; reencrypting the decrypted content utilizing a unique local decrypting key; storing the content in a library; and decrypting at least part of the content from the library using the unique local decrypting key.
Claim 2
Independent Claim
163 words
A method to deliver encrypted digital content from a first system for playing the content to a second system for playing the content, the method on the second system comprising the steps of: reading on a second system from a computer readable medium metadata which has previously been associated with a portion of content, wherein the content is encrypted with a first key associated with the first system; selecting from the metadata associated content to decrypt; establishing a secure transmission with an authorization authority for decrypting the content; and receiving a decrypting key for decrypting at least part of the previously encrypted content stored on the computer readable medium as permitted by the authorization authority; decrypting at least part of the previously encrypted content as permitted by the authorization authority; reencrypting the decrypted content utilizing a unique local decrypting key; storing the content in a library; and decrypting at least part of the content from the library using the unique local decrypting key.
Claim 3
Dependent Claim
32 words
The method according to claim 1 , further comprising the steps of: playing at least part of the previously encrypted content by decrypting the encrypted content with the unique local decrypting key.
Claim 4
Dependent Claim
40 words
The method according to claim 2 , wherein the step of decrypting at least part of the previously encrypted content as permitted by the authorization authority is performed in a tamper-resistant environment for deterring unauthorized access to the decrypting key.
Claim 5
Dependent Claim
28 words
The method according to claim 1 , wherein the steps of decrypting and reencrypting are performed in a tamper-resistance environment for deterring unauthorized access to the decrypting key.
Claim 6
Dependent Claim
41 words
The method according to claim 2 , wherein the step of playing further comprises playing at least part of the previously encrypted content comprising a plurality of distinct titles whereby each distinct title is decrypted with the unique local decrypting key.
Claim 7
Dependent Claim
28 words
The method according to claim 2 , wherein the step of establishing the secure transmission further comprises the step of transmitting a credit information to the authorization authority.
Claim 8
Dependent Claim
33 words
The method according to claim 2 , wherein the metadata is stored as part of a promotional package on at least one of a Compact Disk and Digital Video Disk containing non-encrypted content.
Claim 9
Dependent Claim
169 words
A computer readable medium containing programming instructions for delivery of encrypted digital content from a first system for playing the content to a second system for playing the content, the programming instructions for execution on the second user system comprising: reading on a second system from a computer readable medium metadata which has previously been associated with a portion of content, wherein the content is encrypted with a first key associated with the first system; selecting from the metadata associated content to decrypt; establishing a secure transmission with an authorization authority for decrypting the content; receiving a decrypting key for decrypting at least part of the previously encrypted content stored on the computer readable medium as permitted by the authorization authority; decrypting at least part of the previously encrypted content as permitted by the authorization authority; reencrypting the decrypted content utilizing a unique local decrypting key; storing the content in a library; and decrypting at least part of the content from the library using the unique local decrypting key.
Claim 10
Dependent Claim
169 words
A computer readable medium containing programming instructions for delivery of encrypted digital content from a first system for playing the content to a second system for playing the content, the programming instructions for execution on the second user system comprising: reading on a second system from a computer readable medium metadata which has previously been associated with a portion of content, wherein the content is encrypted with a first key associated with the first system; selecting from the metadata associated content to decrypt; establishing a secure transmission with an authorization authority for decrypting the content; receiving a decrypting key for decrypting at least part of the previously encrypted content stored on the computer readable medium as permitted by the authorization authority; decrypting at least part of the previously encrypted content as permitted by the authorization authority; reencrypting the decrypted content utilizing a unique local decrypting key; storing the content in a library; and decrypting at least part of the content from the library using the unique local decrypting key.
Claim 11
Dependent Claim
34 words
The computer readable medium according to claim 8 , further comprising the step of: playing at least part of the previously encrypted content by decrypting the encrypted content with the unique local decrypting key.
Claim 12
Dependent Claim
43 words
The computer readable medium according to claim 9 , wherein the programming instruction of decrypting at least part of the previously encrypted content as permitted by the authorization authority is performed in a tamper-resistant environment for deterring unauthorized access to the decrypting key.
Claim 13
Dependent Claim
31 words
The computer readable medium according to claim 8 , wherein the programming instruction of decrypting and reencrypting is performed in a tamper-resistance environment for deterring unauthorized access to the decrypting key.
Claim 14
Dependent Claim
43 words
The computer readable medium according to claim 8 , wherein the programming instruction of playing further comprises playing at least part of the previously encrypted content comprising a plurality of distinct titles whereby each distinct title is decrypted with the unique decrypting key.
Claim 15
Dependent Claim
31 words
The computer readable medium according to claim 8 , wherein the programming instruction of establishing the secure transmission further comprises the step of transmitting a credit information to the authorization authority.
Claim 16
Dependent Claim
35 words
The computer readable medium according to claim 8 , wherein the metadata is stored as part of a promotional package on at least one of a Compact Disk and Digital Video Disk containing non-encrypted content.
Claim 17
Dependent Claim
176 words
A second user system for receiving encrypted digital content from a first system, the second user system comprising: an interface reading from a computer readable medium metadata which has previously been associated with a portion of content, wherein the content is encrypted with a first key associated with the first system; an input device for receiving at least one selection from the metadata associated content to decrypt: a network connection for establishing a secure transmission with an authorization authority for decrypting the content; and means for receiving a decrypting key for decrypting at least part of the previously encrypted content stored on the computer readable medium as permitted by the authorization authority; a tamper resistant environment for decrypting at least part of the previously encrypted content as permitted by the authorization authority; reencrypting the decrypted content utilizing a unique local decrypting key; storing the content in a library; and decrypting at least part of the content from the library using the unique local decrypting key; wherein tamper resistant environment deters unauthorized access to the decrypting key.
Claim 18
Dependent Claim
176 words
A second user system for receiving encrypted digital content from a first system, the second user system comprising: an interface reading from a computer readable medium metadata which has previously been associated with a portion of content, wherein the content is encrypted with a first key associated with the first system; an input device for receiving at least one selection from the metadata associated content to decrypt: a network connection for establishing a secure transmission with an authorization authority for decrypting the content; and means for receiving a decrypting key for decrypting at least part of the previously encrypted content stored on the computer readable medium as permitted by the authorization authority; a tamper resistant environment for decrypting at least part of the previously encrypted content as permitted by the authorization authority; reencrypting the decrypted content utilizing a unique local decrypting key; storing the content in a library; and decrypting at least part of the content from the library using the unique local decrypting key; wherein tamper resistant environment deters unauthorized access to the decrypting key.
Claim 19
Dependent Claim
35 words
The second user system according to claim 15 , further comprising: a player application for playing at least part of the previously encrypted content by decrypting the encrypted content with the unique local decrypting key.
Claim 20
Dependent Claim
42 words
The second user system according to claim 16 , wherein the player application includes a means for playing at least part of the previously encrypted content comprising a plurality of distinct titles whereby each distinct title is decrypted with the unique local.
Claim 21
Dependent Claim
25 words
The second user system according to claim 16 , wherein the network connection further comprises means for transmitting a credit information to the authorization authority.
Claim 22
Dependent Claim
35 words
The second user system according to claim 16 , wherein the metadata is stored as part of a promotional package on at least one of a Compact Disk and Digital Video Disk containing non-encrypted content.
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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) | 2009-01-02 | 2009-07-04 | 2010-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2013-01-02 | 2013-07-04 | 2014-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2017-01-02 | 2017-07-04 | 2018-01-03 | $7700.00 | Window Closed / Lapsed |