US7346580B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and system of preventing unauthorized rerecording of multimedia content
Assignee: International Business Machines Corp
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Filing: 2001-08-23
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Granted: 2008-03-18
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Expires: 2021-08-23
Abstract
Abstract A method, system and computer readable medium for the blocking of recording digital content at an end user multimedia end-user-system during the rendering of encrypted digital multimedia files. Before the process of rendering of encrypted digital multimedia can be started all rendered media stream during playback are opened to ensure that this multimedia content is not recorded. This blocks the usage of the devices and/or ports that can be used to store un-encrypted content that has been decrypted for the purposes of playing or rendering. The method also includes an exception, which allows recording with permission from the present invention.
Inventors
- 👤 Michael G. Lisanke
- 👤 Kenneth L. Milsted
- 👤 Stefan Nusser
- 👤 Bruce A. Tantlinger
- 👤 George W. Wilhelm, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:58
CPC Classifications
G; G06; G06T; G06T1/00; G06T1/0021; G11; G11B; G11B20/00; G11B20/00086; G11B20/00166; G11B20/00173; G11B20/0021; G11B20/00217; G11B20/00224; G11B20/0071; G11B20/00731; G11B20/00746; G11B20/00753; G11B20/00884; H; H04; H04L; H04L63/00; H04L63/04; H04L63/0428; H04L67/00; H04L67/50; H04L67/52; H04L69/00; H04L69/04; H04L69/30; H04L69/32; H04L69/322; H04L69/329; H04W; H04W4/00; H04W4/02; G06F; G06F21/00; G06F21/10; G06F21/101; G06F21/1013; G06F2211/00; G06F2211/007; G06F2221/00; G06F2221/21; G06F2221/2107; G06F2221/2135; G06T2201/00; G06T2201/005; G06T2201/0064; H04L2463/00; H04L2463/101; H04L2463/102
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
161 words
A method on an end-user device to prevent an unauthorized recording of multimedia content as a result of rendering at least part of the multimedia content, the method comprising: accessing encrypted multimedia content intended for playing on the end-user device using multimedia output devices and/or pods of the end-user device after decryption of the multimedia content; prior to decryption of the encrypted multimedia content, blocking access to multimedia content input devices and/or ports of the end-user device, the blocking being accomplished by opening all multimedia content input devices and/or ports of the end-user device that can receive any part of a multimedia content, to prevent use of such multimedia content input devices and/or ports, thereby preventing re-recording of decrypted multimedia content by the end-user device; decrypting at least part of the encrypted multimedia content; and subsequent to decryption, and while access to all such multimedia content input devices and/or ports is blocked, rendering the at least part of the multimedia content.
Claim 2
Independent Claim
161 words
A method on an end-user device to prevent an unauthorized recording of multimedia content as a result of rendering at least part of the multimedia content, the method comprising: accessing encrypted multimedia content intended for playing on the end-user device using multimedia output devices and/or pods of the end-user device after decryption of the multimedia content; prior to decryption of the encrypted multimedia content, blocking access to multimedia content input devices and/or ports of the end-user device, the blocking being accomplished by opening all multimedia content input devices and/or ports of the end-user device that can receive any part of a multimedia content, to prevent use of such multimedia content input devices and/or ports, thereby preventing re-recording of decrypted multimedia content by the end-user device; decrypting at least part of the encrypted multimedia content; and subsequent to decryption, and while access to all such multimedia content input devices and/or ports is blocked, rendering the at least part of the multimedia content.
Claim 3
Dependent Claim
110 words
The method according to claim 1 , wherein the rendering of the at least part of the multimedia content is accomplished by using multimedia output devices and/or pods of the end-user device, and wherein the step of rendering further comprises: completing the rendering of the at least part of the multimedia content; after completion of the rendering, closing all output devices and/or ports including waveout devices that were used for rendering, thereby allowing access to such output devices and/or ports; and after completion of the rendering, closing all input devices and/or ports including wavein devices that were opened during the rendering, thereby allowing access to such input devices and/or ports.
Claim 4
Dependent Claim
53 words
The method according to claim 1 , wherein the accessing the encrypted multimedia content further comprises: reading the encrypted multimedia content from a storage medium is selected from a group of storage media consisting of disk drive, cassette tape, CD, DVD, diskette drive, network storage, zip drive, compact flash, smart flash and minidisc.
Claim 5
Dependent Claim
168 words
A computer readable medium containing programming instructions for an end-user device to prevent an unauthorized recording of multimedia content as a result of rendering at least part of the multimedia content, the programming instructions comprising: accessing encrypted multimedia content intended for playing on the end-user device by using multimedia output devices and/or ports of the end-user device after decryption of the multimedia content; prior to decryption of the encrypted multimedia content, blocking access to multimedia content input devices and/or ports of the end-user device, the blocking being accomplished by opening all multimedia content input devices and/or pods of the end-user device that can receive any part of a multimedia content, to prevent use of such multimedia content input devices and/or ports, thereby preventing re-recording of decrypted multimedia content by the end-user device; decrypting at least part of the encrypted multimedia content; and subsequent to decryption, and while access to all such multimedia content input devices and/or ports is blocked, rendering the at least part of the multimedia content.
Claim 6
Dependent Claim
168 words
A computer readable medium containing programming instructions for an end-user device to prevent an unauthorized recording of multimedia content as a result of rendering at least part of the multimedia content, the programming instructions comprising: accessing encrypted multimedia content intended for playing on the end-user device by using multimedia output devices and/or ports of the end-user device after decryption of the multimedia content; prior to decryption of the encrypted multimedia content, blocking access to multimedia content input devices and/or ports of the end-user device, the blocking being accomplished by opening all multimedia content input devices and/or pods of the end-user device that can receive any part of a multimedia content, to prevent use of such multimedia content input devices and/or ports, thereby preventing re-recording of decrypted multimedia content by the end-user device; decrypting at least part of the encrypted multimedia content; and subsequent to decryption, and while access to all such multimedia content input devices and/or ports is blocked, rendering the at least part of the multimedia content.
Claim 7
Dependent Claim
126 words
The computer readable medium according to claim 4 , wherein the rendering of the at least part of the multimedia content is accomplished by using multimedia output devices and/or ports of the end-user device, and wherein the programming instructions for rendering of at least a part of the multimedia content, further comprises the programming instructions for: completing the rendering of the at least part of the multimedia content; after completion of the rendering, closing all output devices and/or ports including waveout devices that were used for rendering, thereby allowing access to such output devices and/or pods; and after completion of the rendering, closing all input devices and/or ports including wavein devices that were opened during the rendering, thereby allowing access to such input devices and/or ports.
Claim 8
Dependent Claim
61 words
The computer readable medium according to claim 4 , wherein the programming instructions for accessing the encrypted multimedia content further comprises the programming instructions for: reading the encrypted multimedia content from a storage medium selected from a group of storage media consisting of disk drive, cassette tape, CD, DVD, diskette drive, network storage, zip drive, compact flash, smart flash and minidisc.
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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) | 2011-03-18 | 2011-09-17 | 2012-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2015-03-18 | 2015-09-17 | 2016-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2019-03-18 | 2019-09-17 | 2020-03-18 | $7700.00 | Window Closed / Lapsed |