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:
Sep. 08, 2015
Filed:
Sep. 21, 2012
Menashe Haskin, Palo Alto, CA (US);
Christopher D. Coley, Morgan Hill, CA (US);
Gregg Elliott Zehr, Palo Alto, CA (US);
Ronald Joseph Degges, Jr., Los Gatos, CA (US);
Menashe Haskin, Palo Alto, CA (US);
Christopher D. Coley, Morgan Hill, CA (US);
Gregg Elliott Zehr, Palo Alto, CA (US);
Ronald Joseph Degges, Jr., Los Gatos, CA (US);
Amazon Technologies, Inc., Seattle, WA (US);
Abstract
In some embodiments, a distance between the at least one light sensor and the surface may be calculated using a ratio representative of the phase difference using time-of-flight of light. The distance may be within a distance range defined by a distance of light travel during a modulation period of the predetermined frequency. The distance may be based on the ratio defined by an amount of energy stored from captured light during a first time interval and a second time interval, and a comparison of an amount of light stored from captured light during at least a third time interval. The first, second, and third time intervals are different, but may overlap in some instances. In some embodiments, the amount of ambient light may be identified and subtracted from the inputs of the ratio. A switch may be used to prevent oversaturation of a storage element storing the stored energy.