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:
Jan. 15, 2019
Filed:
Mar. 30, 2015
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventor:
Toshiyuki Sugitani, Saga, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 12/04 (2009.01); H04L 9/08 (2006.01); H04L 9/16 (2006.01); H04M 1/725 (2006.01); H04W 12/02 (2009.01); H04W 84/20 (2009.01);
U.S. Cl.
CPC ...
H04W 12/04 (2013.01); H04L 9/0891 (2013.01); H04L 9/16 (2013.01); H04M 1/725 (2013.01); H04L 2209/80 (2013.01); H04W 12/02 (2013.01); H04W 84/20 (2013.01);
Abstract
A wireless communications device, that is constituted from a control station and a slave station that perform encryption communication using an encryption key, includes a controller that monitors communication quality of a state of a call to the slave station and, in a case where the communication quality degrades to below the same level as a state that is determined in advance, operates in such a manner that a procedure for changing the encryption key, which is determined in advance, is not activated.