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:
Feb. 04, 2003
Filed:
Dec. 14, 1998
Nobuo Yamada, Tokyo, JP;
Kunio Iimura, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
An authentication system is applied for a voice network in order to provide the same security as that attained by a data network. Provided is a voice network access system wherein a one-time password system, which is used as an access authentication system, is applied for a voice network that is constituted by an private automatic branch exchange that includes an external interface; wherein the private automatic branch exchange is connected to a computer telephony server across the external interface for the exchange of sender number information that is received from a public network; and wherein the private automatic branch exchange is also connected via the external interface to an authentication system server, which receives a user's name from the computer telephony server and performs a personal authentication process using the user's name.