Multi-finger user identification
AssigneeYahoo! Inc.
InventorsBenoit Schillings, Daryl Low, Andreas Rossbacher
Life of this patent
Estimating the term…
Abstract
A method for identifying a user is provided, including the following method operations: identifying at least three contact regions on a touch sensitive surface, the contact regions defined by simultaneous contact of at least three fingers of the user with the touch sensitive surface; for each contact region, determining a center point; determining distances between each of the determined center points of the contact regions; comparing the determined distances against predefined distances associated with a known user; based on the comparing, determining the user to be the known user or not the known user.
Claims20
A method for identifying a user, comprising:
- identifying at least three contact regions on a touch sensitive surface, the contact regions defined by simultaneous contact of at least three fingers of the user with the touch sensitive surface;
- for each contact region, determining a center point;
- determining distances between each of the determined center points of the contact regions;
- comparing the determined distances against predefined distances associated with a known user;
- based on the comparing, determining the user to be the known user or not the known user;
- wherein the method is executed by a processor.
A device configured to identify a user, comprising:
- a touch sensitive surface;
- logic for identifying at least three contact regions on the touch sensitive surface, the contact regions defined by simultaneous contact of at least three fingers of the user with the touch sensitive surface;
- logic for, for each contact region, determining a center point;
- logic for determining distances between each of the determined center points of the contact regions;
- logic for comparing the determined distances against predefined distances associated with a known user;
- logic for, based on the comparing, determining the user to be the known user or not the known user.
A method for identifying a user, comprising:
- receiving a plurality of touch samples associated with a known user, each touch sample associated with the known user being defined by at least three contact regions of at least three fingers of the known user on a touch sensitive surface;
- receiving a plurality of touch samples associated with others who are not the known user, each touch sample associated with the others being defined by at least three contact regions corresponding to the at least three contact regions of the known user;
- determining a discrimination function based on the plurality of touch samples associated with the known user and the plurality of touch samples associated with the others, the discrimination function being defined to classify a given touch sample as from the known user or not from the known user.
Dependencies are inferred from the claim text.