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:
Jul. 08, 2014
Filed:
Sep. 09, 2009
Jeong Wook Seo, Daegu, KR;
Ja Geol Lee, Gyeonggi-do, KR;
Chung Kyu Lee, Seoul, KR;
MI Sun Kim, Gyeongsangbuk-do, KR;
Jeong Wook Seo, Daegu, KR;
Ja Geol Lee, Gyeonggi-do, KR;
Chung Kyu Lee, Seoul, KR;
Mi Sun Kim, Gyeongsangbuk-do, KR;
Samsung Electronics Co., Ltd., Yeongtong-gu, Suwon-si, Gyeonggi-do, KR;
Abstract
A Right Object renewal method and apparatus for a right-protected digital broadcast service that is capable of predicting the expiration of a Right Object issued for the right-protected broadcast channel and renewing the Right Object prior to the expiration of the Right object based on the predicted expiry is provided. A right object renewal method for a right-protected broadcast service using a long term right object having a purchased license duration and a short term right object having a temporary license duration which is shorter than the purchased license duration according to the present invention includes determining whether the time to expire of a previously issued short term right object is less than a predetermined threshold value; requesting, when the time to expire of the previously issued short term right object is less than the threshold value, requesting and receiving a new short term object; and renewing the duration of the short term right object based on the received new short term right object.