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.:
Date of Patent:
Aug. 03, 2010
Filed:
Nov. 07, 2007
Young-soon Cho, Pyungtaek, KR;
Myeong-joon Kang, Pyungtaek, KR;
Jae-young Kim, Seoul, KR;
Han Jung, Seoul, KR;
Young-Soon Cho, Pyungtaek, KR;
Myeong-Joon Kang, Pyungtaek, KR;
Jae-Young Kim, Seoul, KR;
Han Jung, Seoul, KR;
LG Electronics Inc., Seoul, KR;
Abstract
The invention is directed to a digital data delivery system including a digital data server configured to deliver first key encrypted digital data to a source device, and the first key encrypted digital data is encrypted using a first key. The source device is configured to generate decrypted digital data by decrypting the first key encrypted digital data using the first key, generate second key encrypted digital data by encrypting the decrypted digital data using a second key, and deliver the second key encrypted digital data to a digital data playing device. The first key is thereby based on one or more registration attributes of a user of the digital data server, and the second key is based on one or more attributes of the digital data playing device.