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:
Oct. 18, 2022
Filed:
Jul. 26, 2018
Ningbo Fotile Kitchen Ware Co., Ltd., Zhejiang, CN;
Deyou Zhan, Zhejiang, CN;
Xiaozhe Qiu, Zhejiang, CN;
Lei Wang, Zhejiang, CN;
Zhongqun Mao, Zhejiang, CN;
Yongding Zhu, Zhejiang, CN;
Xianliang Fang, Zhejiang, CN;
NINGBO FOTILE KITCHEN WARE CO., LTD., Zhejiang, CN;
Abstract
The present invention discloses a contactless control device for a range hood and a control method thereof. The contactless control device comprises two sets of infrared gesture sensing devices disposed on the housing of the range hood, and a detected signal analysis device. Each set of infrared gesture sensing devices comprises one infrared receiving device and at least one infrared transmitting device. The distance L between two infrared receiving devices meets the following condition: H*tan(θ)+H*tan(β)+W_min<L<H*tan(θ)+H*tan(β)+W_max. It is unnecessary to control the user's gesture sensing distance according to the intensity of the infrared transmitted signals. In this way, it is convenient to adjust the intensity of the infrared transmitted signals, and the infrared receiving device can better detect infrared signals.