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. 01, 2013
Filed:
Nov. 11, 2008
Yasuhiro Yamasaki, Tokyo, JP;
Yasuhiro Yamasaki, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A communication quality estimation system has: a plurality of equipments performing packet transmission on a network; and a communication quality estimation equipment. The plurality of equipments includes: a first equipment; a second equipment; and a third equipment placed downstream of the first equipment and upstream of the second equipment. The communication quality estimation equipment estimates communication quality in the third equipment by comparing a number of first packets satisfying a first sampling rule out of packets transmitted by the first equipment and a number of second packets satisfying the first sampling rule out of packets transmitted by the second equipment.