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:
Feb. 13, 2018
Filed:
Dec. 31, 2012
Piqs Technology (Shenzhen) Limited, Shenzhen, Guangdong, CN;
Qinglin Na, Shenzhen, CN;
Yan Huang, Shenzhen, CN;
Haohuang Mai, Shenzhen, CN;
Haixiang Wang, Shenzhen, CN;
PIQS TECHNOLOGY (SHENZHEN) LIMITED, Shenzhen, CN;
Abstract
Provided are infrared interactive remote control devices and projection systems using same, which can distinguish an indication state and an interactive control state. A pattern disc rotatable around a rotating shaft is provided in the infrared interactive remote control device. In a normal state, a visible light source works independently, and indication pattern holes in the pattern disc are positioned on an optical path to allow visible light to pass through, so that indication light spots corresponding to the indication pattern holes are formed. When a control button is pressed down, the visible light source and an infrared light source work together, and the pattern disc is driven to rotate, so that the control pattern holes are positioned on the optical path to allow the visible light to pass through, and control light spots corresponding to the control pattern holes are formed to indicate an interactive control state.