IP Library Granted Patent US 7,991,958
Granted Patent B2
US 7,991,958 · App. 12/362,760 · Granted Aug 2, 2011

Method and system for providing digital rights management files using caching

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Quick Facts
Patent No.
US 7,991,958
App. No.
12/362,760
Granted
Aug 2, 2011
Kind
B2
Abstract

A method for providing DRM files using caching includes identifying DRM files to be displayed in a file list in response to a request, decoding a number of first DRM files from among the identified DRM files and caching the first DRM files in a first memory space, and reading the first DRM files in the first memory space in response to the request. Then, a system displays the first DRM files as a file list in a display area. The second DRM files from among the identified DRM files other than the first DRM files are not initially decoded, and file data related to the second DRM files are cached in a second memory space. DRM files from among the second DRM files are subsequently decoded in response to a subsequent command.

Claims (28)

1. A method for providing a digital rights management (DRM) file using caching, comprising:

identifying DRM files to be included in a file list;

decoding a first number of first DRM files from among the identified DRM files, the first number being less than a total number of identified DRM files;

caching the first DRM files in a first memory space;

reading the first DRM files stored in the first memory space in response to a first command; and

displaying the first DRM files in the file list.

2. The method of claim 1 , further comprising:

caching file data related to second DRM files in a second memory space, the second DRM files being from among the identified DRM files other than the first DRM files.

3. The method of claim 2 , further comprising:

reading the file data in the second memory space in response to a second command; and

displaying the read file data in the file list.

4. The method of claim 2 , further comprising:

decoding a second number of third DRM files from among the second DRM files in response to a second command, and caching the third DRM files in the first memory space;

reading the third DRM files in the first memory space; and

displaying the third DRM files in the file list.

5. The method of claim 1 , wherein caching the first DRM files in the first memory space comprises storing the decoded first DRM files in the first memory space.

6. The method of claim 1 , wherein the first number is based on a maximum number of file list slots that are capable of being displayed on a display area.

7. A computer comprising a memory and a central processing unit to perform program instructions stored on a computer-readable medium, the program instructions implementing the method of claim 1 .

8. A system for providing digital rights management (DRM) files using caching, comprising:

a file identification unit to identify DRM files to be included in a file list;

a memory caching unit to decode a first number of first DRM files from among the identified DRM files, the first number being less than a total number of identified DRM files, and to cache the first DRM files in a first memory space;

a file reading unit to read the first DRM files stored in the first memory space in response to a first command; and

a display unit to display the first DRM files in the file list.

9. The system of claim 8 , wherein the memory caching unit caches file data related to second DRM files in a second memory space, the second DRM files being from among the identified DRM files other than the first DRM files.

10. The system of claim 9 , where the file reading unit reads the file data in the second memory space in response to a second command, and the display unit displays the read file data in the file list.

11. The system of claim 9 , wherein the memory caching unit decodes a second number of third DRM files from among the second DRM files in response to a second command and caches the third DRM files in the first memory space, the file reading unit reads the third DRM files stored in the first memory space, and the display unit displays the third DRM files in the file list.

12. The system of claim 8 , wherein the first number is based on a maximum number of file list slots that are capable of being displayed on the display unit.

13. A mobile terminal, comprising the system of claim 8 .

Assignments (7)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 3, 2020
From: PANTECH CORPORATION
To: HELIOS STREAMING, LLC
Reel/Frame 052831/0408 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 13, 2020
From: GOLDPEAK INNOVATIONS INC
To: PANTECH CORPORATION
Reel/Frame 052657/0066 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 27, 2017
From: PANTECH INC
To: GOLDPEAK INNOVATIONS INC
Reel/Frame 042098/0653 →
CORRECTIVE ASSIGNMENT TO CORRECT THE REMOVAL OF PATENTS 09897290, 10824929, 11249232, 11966263 PREVIOUSLY RECORDED AT REEL: 040654 FRAME: 0749. ASSIGNOR(S) HEREBY CONFIRMS THE MERGER. Recorded Jan 18, 2017
From: PANTECH CO., LTD.
To: PANTECH INC.
Reel/Frame 041413/0799 →
CORRECTIVE ASSIGNMENT TO CORRECT THE PATENT APPLICATION NUMBER 10221139 PREVIOUSLY RECORDED ON REEL 040005 FRAME 0257. ASSIGNOR(S) HEREBY CONFIRMS THE PATENT APPLICATION NUMBER 10221139 SHOULD NOT HAVE BEEN INCLUED IN THIS RECORDAL. Recorded Nov 7, 2016
From: PANTECH CO., LTD.
To: PANTECH INC.
Reel/Frame 040654/0749 →
DE-MERGER Recorded Sep 13, 2016
From: PANTECH CO., LTD.
To: PANTECH INC.
Reel/Frame 040005/0257 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 14, 2009
From: LEE, HO HEE
To: PANTECH CO., LTD.
Reel/Frame 022395/0782 →