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:
Jun. 02, 2020
Filed:
Mar. 10, 2015
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Yoshikazu Hanatani, Kawasaki, JP;
Toru Kambayashi, Chigasaki, JP;
Fangming Zhao, Fuchu, JP;
Yoshihiro Oba, Kawasaki, JP;
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Abstract
A communication control device includes an extracting unit and an output unit. The extracting unit extracts, from a media key block containing a plurality of elements, partial information that contains elements which can be processed by a communication device having a device ID thereof identified in identification information for identifying one or more device IDs. The output unit outputs a group ID for identifying a group, the identification information, and the partial information, to a plurality of the communication devices that include all of the communication devices belonging to the group.