Source: http://www.google.com/patents/US7840818?ie=ISO-8859-1&dq=5,742,768
Timestamp: 2015-03-01 23:58:42
Document Index: 398960913

Matched Legal Cases: ['application No. 01990898', 'application No. 01992016', 'Application No. 2002', 'Application No. 2002', 'art 1', 'Application No. 090130438', 'Application No. 090130439', 'Application No. 10']

Patent US7840818 - System, method, and device for playing back recorded content - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsA secure software package for original equipment manufacturers to run in electronic devices in order to access and dynamically decrypt encrypted audio video or other content from a memory storage device such as a memory card, optical or hard disk such that the user interface of the device need only send...http://www.google.com/patents/US7840818?utm_source=gb-gplus-sharePatent US7840818 - System, method, and device for playing back recorded contentAdvanced Patent SearchPublication numberUS7840818 B2Publication typeGrantApplication numberUS 10/006,554Publication dateNov 23, 2010Filing dateDec 6, 2001Priority dateDec 7, 2000Fee statusPaidAlso published asCN1541391A, CN1720578A, CN100514471C, EP1461808A2, EP1512147A2, EP2357651A2, EP2357651A3, US7227952, US8443208, US20020176575, US20020186842, US20070237329, US20080137865, US20110191600, WO2002047080A2, WO2002047080A3, WO2002047081A2, WO2002047081A3, WO2002047081A9Publication number006554, 10006554, US 7840818 B2, US 7840818B2, US-B2-7840818, US7840818 B2, US7840818B2InventorsFarshid Sabet-Sharghi, Bahman Qawami, Robert C. ChangOriginal AssigneeSandisk CorporationExport CitationBiBTeX, EndNote, RefManPatent Citations (46), Non-Patent Citations (53), Referenced by (9), Classifications (76), Legal Events (5) External Links: USPTO, USPTO Assignment, EspacenetSystem, method, and device for playing back recorded content
This application is related to and claims priority from U.S. Provisional Patent Application Ser. No. 60/251,731 entitled �SECURE SOFTWARE SYSTEM FOR PLAYING BACK RECORDED AUDIO, VIDEO OR OTHER CONTENT FROM NON-VOLATILE MEMORY CARDS, COMPACT DISKS OR OTHER MEDIA� filed Dec. 7, 2000, and is related to U.S. Application entitled �SYSTEM, METHOD, AND DEVICE FOR PLAYING BACK RECORDED AUDIO, VIDEO OR OTHER CONTENT FROM NON-VOLATILE MEMORY CARDS, COMPACT DISKS OR OTHER MEDIA;� filed concurrently on the same day as this application and having the same inventors as this application. These applications are hereby incorporated by this reference in their entirety.
There are several commercially available non-volatile memory cards that are suitable for use as the content data storage media. One is the CompactFlash (CF) card, another is the MultiMediaCard (MMC), and yet another is the Secure Digital (SD) memory card that is closely related to the MMC card. All three, and others, are available in various storage capacities from SanDisk Corporation of Sunnyvale, Calif., assignee of the present application. The physical and electrical specifications for the MMC are given in �The MultiMediaCard System Specification� that is updated and published from time-to-time by the MultiMediaCard Association (�MMCA�) of Cupertino, Calif. Versions 2.11 and 2.2 of that Specification, dated June 1999 and January 2000, respectively, are expressly incorporated herein by this reference. The MMC products are also described in a �MultiMediaCard Product Manual,� Revision 2, dated April 2000, published by SanDisk corporation, which Manual is expressly incorporated herein by this reference. Certain aspects of the electrical operation of the MMC products are also described in co-pending patent applications of Thomas N. Toombs and Micky Holtzman, Ser. Nos. 09/185,649 and 09/186,064, both filed Nov. 4, 1998, and assigned to SanDisk Corporation. The physical card structure and a method of manufacturing it are described in U.S. Pat. No. 6,040,622, assigned to SanDisk Corporation. Both of these applications and patent are also expressly incorporated herein by this reference.
In step 805H, SdGetTracklnfo will fill in the values for the track information block 870 by copying the information from card 13 into a RAM of device 15. It will select the appropriate authorized drive where the playlist info resides by referring to media info block 850. It will select the tracks within each playlist by referring to the Playlist info block 860. The total track time (trackTime) in milli-seconds including the related track units (�TKI's�) in the track, the total track size in bytes (bytesize), including the related TKI's, the number of TKI's in the track (tkisInTrack), the track number (tracknum), the index corresponding the current track (index), and the track information from the media (trkInformation) will be filled into their respective locations.
The system and method of the present invention are advantageous over prior techniques in many ways. The present invention provides a turnkey solution for original equipment manufacturers to access encrypted content without having to have any knowledge of the memory structure of the storage media. The decryption process by itself is very complex. Futhermore, simply reading and writing to a memory card or compact disk is complex in and of itself. All a manufacturer needs to do is send a simple command such as �play� or �next track� and return the decrypted content from whatever the memory device happens to be.
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No. 10/006,465 on Aug. 16, 2006, 25 pages.52van der Meulen, Y.J. et al., "Memory Access to a Chip Card", IBM Technical Disclosure Bulletin, vol. 24, No. 7B, Dec. 1981, pp. 3883-3884.53Weimann, J�rgen, "Security Problems Concerning Chip-Card Applications", Securicom 84, 2nd Worldwide Congress on Computer and Communications Security and Protection, Feb.-Mar. 1984, pp. 141-147.Referenced byCiting PatentFiling datePublication dateApplicantTitleUS7958377 *Jul 24, 2008Jun 7, 2011Dphi Acquisitions, Inc.Secure access system and methodUS8009831 *Jun 30, 2008Aug 30, 2011Condel International Technologies Inc.Method and system for hiding the decryption key in a dispersive wayUS8156347 *Aug 12, 2009Apr 10, 2012Panasonic CorporationSemiconductor memory card, playback apparatus, recording apparatus, playback method, recording method, and computer-readable recording mediumUS8312294 *Jul 16, 2009Nov 13, 2012Kabushiki Kaisha ToshibaInformation processing apparatus, authentication method, and storage mediumUS8443208Nov 4, 2010May 14, 2013Sandisk Technologies Inc.System, method and device for playing back recorded audio, video or other content from non-volatile memory cards, compact disks, or other mediaUS8839002 *Apr 23, 2008Sep 16, 2014Cyberlink Corp.Optical media recording device for protecting device keys and related methodUS20090268907 *Apr 23, 2008Oct 29, 2009Chun-Wei ChangOptical Media Recording Device for Protecting Device Keys and Related MethodUS20100017626 *Jul 16, 2009Jan 21, 2010Kabushiki Kaisha ToshibaInformation processing apparatus, authentication method, and storage mediumUS20100064145 *Aug 12, 2009Mar 11, 2010Teruto HirotaSemiconductor memory card, playback apparatus, recording apparatus, playback method, recording method, and computer-readable recording medium* Cited by examinerClassifications U.S. Classification713/193, 713/165, 713/189, 726/26, 380/201, 700/94, 713/166, 710/74International ClassificationH04N5/913, H04L9/08, G11B20/12, H04N5/781, G06F21/00, G06F11/30, H04N5/85, G11B20/00, H04N5/907, H04L9/10, G11B20/10, G06K17/00, G06F12/14, G10L19/00, G09C1/00Cooperative ClassificationH04L9/3271, G11B27/005, G11B27/105, G11B20/00347, G11B2020/10546, H04N5/913, H04N5/85, G06F2221/2107, G11B20/00166, G11B20/00246, H04N2005/91364, G06Q20/3674, G06F2221/2137, G11B20/00094, G11B20/00086, G06F21/72, G11B20/0021, G06F2221/0711, G11B20/00673, G11B20/00275, G06F21/10, G11B20/00528, G11B20/00362, G06F21/83, G06F2221/0784, H04N5/781, G11B2220/60, G11B20/10, H04N5/907, G06F21/79, H04L9/0844, H04L2209/60, H04L9/16European ClassificationG11B27/00V, H04N5/913, G11B20/10, G11B20/00P, H04L9/08, G11B27/10A1, G06F21/10, G11B20/00P5, G06F21/79, G11B20/00P5A6J, G11B20/00P5A6H, G06F21/83, G11B20/00P1, G06F21/72, G11B20/00P5G1E, G11B20/00P8A, G11B20/00P5A6B, G11B20/00P5A5, G11B20/00P3, G06Q20/3674Legal EventsDateCodeEventDescriptionApr 23, 2014FPAYFee paymentYear of fee payment: 4May 19, 2011ASAssignmentFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SANDISK CORPORATION;REEL/FRAME:026312/0446Owner name: SANDISK TECHNOLOGIES INC., TEXASEffective date: 20110404Feb 1, 2011CCCertificate of correctionJan 10, 2005ASAssignmentOwner name: SANDISK CORPORATION, CALIFORNIAFree format text: CORRECTIVE ASSIGNMENT TO CORRECT THE SPELLING OF THE SECOND CONVEYING PARTY S LAST NAME PREVIOUSLY RECORDED AT REEL 013073 FRAME 0570;ASSIGNORS:SABET-SHARGHI, FARSHID;QAWAMI, BAHMAN;CHANG, ROBERT C.;REEL/FRAME:015576/0949;SIGNING DATES FROM 20020530 TO 20020610Jul 2, 2002ASAssignmentOwner name: SANDISK CORPORATION, CALIFORNIAFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SABET-SHARGHI, FARSHID;QAWANI, BAHMAN;CHANG, ROBERT C.;REEL/FRAME:013073/0570;SIGNING DATES FROM 20020530 TO 20020610RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services