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:
Oct. 02, 2006
Filed:
Dec. 16, 2003
Applicant:
Tae Joon Park, Seoul, KR;
Inventor:
Tae Joon Park, Seoul, KR;
Assignee:
LG Electronics Inc., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/00 (2005.12);
U.S. Cl.
CPC ...
Abstract
A copy prevention method and apparatus for a digital video system is disclosed including the steps of: (a) adding a header area of a header start code and key field to a reproduced bitstream:stream;(b) decrypting and transmitting the bit stream to which the header area isadded:added;(c) detecting a key field of the decrypted and transmitted bit stream and detecting copy prevention information; and (d) encrypting the bit stream according to information detected fromstopstep(c) andoptionallyrecording itanon atape.
Park, Tae. (2006). Copy prevention method and apparatus for digital video system (U.S. Patent No. RE39319). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/RE39319
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