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:
May. 17, 2016
Filed:
Mar. 26, 2014
Motorola Solutions, Inc, Schaumburg, IL (US);
Aroon V Tungare, Winfield, IL (US);
MOTOROLA SOLUTIONS, INC., Schaumburg, IL (US);
Abstract
A method for user authentication in a device comprising a touch screen is provided. In operation, the device stores a user authentication code corresponding to a user. When a trigger for user authentication is detected, the device randomly selects one or more character positions in the sequence of characters. The device further requests the user to enter a character corresponding to each of the selected one or more character positions in the sequence of characters. When the device detects a user entry made using a keypad on the touch screen, the device determines whether the user entry matches a character corresponding to each of the selected one or more character positions. When the user entry matches a character corresponding to each of the selected one or more character positions in the sequence of characters, then the user is successfully authenticated to the device.