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. 11, 2000
Filed:
Nov. 03, 1997
Randy G Goldberg, Princeton, NJ (US);
John Bruce Harlow, Middletown, NJ (US);
A T & T Corp, New York, NY (US);
Abstract
A user identifier is preassigned to a user, the user identifier being generated by retrieving an implicit checksum and calculating the user identifier (by, for example, using a hidden Markov model) using a checksum operation such as a modulo algorithm so that the user identifier conforms to the implicit checksum, the implicit checksum being based on a checksum parameter, such as the current date or month or a user's phone number. The preassigned user identifier is then received from the user, at and least one recognized identifier is received that is based on the received preassigned user identifier. A checksum is calculated for one recognized identifier using a checksum operation, and the implicit checksum is retrieved. The calculated checksum is compared with the implicit checksum, and the one recognized identifier is selected as the received preassigned user identifier if the calculated checksum equals the retrieved implicit checksum. The selected recognized identifier can be determined as the received user identifier by presenting the selection to the user and receiving confirmation.