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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 10114475 B1

PDFFull Text
Date of Patent:
Oct. 30, 2018

Filed:

Mar. 23, 2017

Position detection system and control method of position detection system

Applicant:

Seiko Epson Corporation, Tokyo, JP;

Inventors:

Hallvard Naess, Trondheim, NO;

Tormod Njolstad, Trondheim, NO;

Sverre Dale Moen, Oslo, NO;

Karol Marcin Pawlak, Trondheim, NO;

Shinji Kubota, Ina, JP;

Assignee:

SEIKO EPSON CORPORATION, Tokyo, JP;

Attorney:

Oliff PLC

Primary Examiner:

Tony Davis

Int. Cl.
CPC ...
G06F 3/03 (2006.01); G06F 3/01 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0304 (2013.01); G06F 3/017 (2013.01);
Abstract

A projection system includes a light emitting apparatus that emits detection light to a detection area for detecting indication positions of indicators, and a projector that detects the indication positions of the indicators in the detection area. The projector includes an imaging portion that captures an image of the detection area, and a position detection portion that detects at least one of an image of light generated by the indicator and an image of the detection light reflected on the indicator from data of a captured image of the imaging portion, and discriminates and detects the indication positions of the indicator and the indicator based on light emission timings of the indicator and the light emitting apparatus.

Find Patent Forward Citations

Naess, Hallvard. (2018). Position detection system and control method of position detection system (U.S. Patent No. 10114475). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10114475

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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