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:
Apr. 13, 2021
Filed:
Jul. 27, 2018
Panasonic Intellectual Property Corporation of America, Torrance, CA (US);
Takuji Hiramoto, Osaka, JP;
Tatsumi Oba, Osaka, JP;
PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA, Torrance, CA (US);
Abstract
A secure hub as a communication security apparatus includes a port that receives a packet from a device and transmits the packet to another device. The secure hub also includes a storage area that retains address authentication information containing pairs of a physical address and a logical address of one or more devices. The secure hub further includes a transfer processing unit that determines whether the pair of the physical address and the logical address of the device, and the pair of the another device, each match any pair of the one or more devices when the address authentication information contains the physical address or the logical address of the device and the another device contained in the packet, and discards the packet when the pair of the device and the pair of the another device do not match any of the pairs of the one or more devices.