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. 07, 2022
Filed:
Feb. 15, 2019
Applicant:
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Inventors:
Hiroshi Uchida, Tokyo, JP;
Hitoshi Kaneko, Tokyo, JP;
Assignee:
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 16/22 (2019.01); G06F 16/2455 (2019.01);
U.S. Cl.
CPC ...
G06F 16/2255 (2019.01); G06F 16/2282 (2019.01); G06F 16/24564 (2019.01);
Abstract
A storage unit () stores a hash table that corresponds to a predetermined field of a packet and has a set of a hash value from a value in the corresponding field and a pointer registered, and an ANY point table that corresponds to the predetermined field and has a pointer registered. A search unit () refers to a hash value calculated from a value in a field of a packet to be searched and to a pointer registered in the hash table and the ANY point table, to perform hash search for a rule corresponding to the packet to be searched.