The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 7640596 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 29, 2009

Filed:

Mar. 18, 2009
Applicants:

Young-soon Cho, Pyungtaek, KR;

Jae-young Kim, Seoul, KR;

Han Jung, Seoul, KR;

Inventors:

Young-Soon Cho, Pyungtaek, KR;

Jae-Young Kim, Seoul, KR;

Han Jung, Seoul, KR;

Assignee:

LG Electronics Inc., Seoul, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 7/04 (2006.01); G06F 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method, apparatus and computer programs for preventing illegal distribution of digital content data, are discussed. In an embodiment, the apparatus includes a controller configured to control the apparatus to: store at least first and second program code segments; receive the digital content data from a first device, the digital content data including a copyright code segment for managing copyright infringement; check the copyright code segment by using the first program code segment for selectively reproducing the digital data contents at a second device; and control an output operation of the digital content data by using the second program code segment based on the copyright code segment, wherein the digital content data is downloaded from a digital data server to the first device through a communication network, wherein decrypting and reproduction operations of the digital content data are executed by a software program provided by the digital data server.


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