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.:

US 9462239 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 04, 2016

Filed:

Jul. 15, 2014
Applicant:

Fuji Xerox Co., Ltd., Tokyo, JP;

Inventors:

Qiong Liu, Cupertino, CA (US);

Hao Tang, Sunnyvale, CA (US);

Patrick Chiu, Mountain View, CA (US);

Shang Ma, Palo Alto, CA (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04N 9/31 (2006.01); G06F 3/03 (2006.01); G06K 9/20 (2006.01);
U.S. Cl.
CPC ...
H04N 9/3105 (2013.01); G06F 3/03 (2013.01); G06K 9/2054 (2013.01); H04N 9/3155 (2013.01);
Abstract

A system and method for generating a projected image signal encoded with position information. The temporal pixel-location data is hidden within visible light signal used for regular image projection. This enables the user to utilize one or multiple ring-shaped light receivers to implement touch or multi-touch functions on a regular image content generated using light from the same projector. The temporal light signal generated by the projector is sliced into multiple temporal segments. The segments include segments of two different types. A segment of the first type is used for carrying a temporal position signal of each pixel in the projector signal. On the other hand, a segment of the second type is used to adjust the color of each pixel. With the color adjustment segment projected to each image pixel, a meaningful visible content of a regular image can be displayed despite the presence of the position-encoded signal segments.


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