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. 11, 2014
Filed:
Mar. 11, 2013
A9.com, Inc., Palo Alto, CA (US);
Arnab Sanat Kumar Dhua, Mountain View, CA (US);
Max Delgadillo, Jr., Santa Clara, CA (US);
A9.com, Inc., Palo Alto, CA (US);
Abstract
Various algorithms are presented that enable an image of a machine-readable code, captured by a camera of an electronic device, to be decoded on the device without need to upload the image information to a server for processing. The algorithms can account for variations in focus of the image, as may result in blur due to move movement or auto-focus features. The approaches can handle multiple machine-readable code formats, and can handle machine-readable code on curved surfaces, machine-readable code with damaged areas, or machine-readable code that are otherwise uneven. Such algorithms are highly accurate while being fast and lightweight enough to execute on portable electronic devices, such as tablet computers and smart phones.