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:
Nov. 06, 2012
Filed:
Jan. 15, 2009
Yutaka Hirakawa, Tokyo, JP;
Yutaka Hirakawa, Tokyo, JP;
Shibaura Institute of Technology, Tokyo, JP;
Abstract
A password authentication apparatus and a password authentication method for preventing the leakage of password information from user's password input operations includes a memory device for storing a correct answer symbol and selection information for selecting at least one input symbol for each digit of a password; a display for displaying combinations of input symbol candidates based on user operation; a processor for selecting, for each digit of the password, one or more input symbols from the combinations of input symbol candidates displayed by the display based on the selection information corresponding to the digit to determine whether the correct answer symbol corresponding to the digit is included in the selected one or more input symbols; and an authentication board for authenticating that the password is entered correctly when the processor determines that correct answer symbols for all the digits of the password are included.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile