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:
Mar. 22, 2022
Filed:
Sep. 06, 2017
China Communication Technology Co., Ltd., Shenzhen, CN;
Shenzhen Institute of Terahertz Technology and Innovation, Shenzhen, CN;
Chunchao Qi, Shenzhen, CN;
Shukai Zhao, Shenzhen, CN;
Hanjiang Chen, Shenzhen, CN;
Beibei Liu, Shenzhen, CN;
CHINA COMMUNICATION TECHNOLOGY CO. LTD., Shenzhen, CN;
SHENZHEN INSTITUTE OF TERAHERTZ TECHNOLOGY AND INNOVATION, Shenzhen, CN;
Abstract
The invention relates to a power adjustment method and apparatus, and a human body security check device. An adjustable power attenuator is provided in a millimeter wave signal transmitting link of the millimeter wave transceiver. The method comprises: obtaining a current humidity value by detecting the ambient humidity around the millimeter wave transceiver using a preset humidity sensor; determining a target power attenuation value of the adjustable power attenuator according to the current humidity value, the sum of the target power attenuation value and a power attenuation value caused to a millimeter wave signal by the ambient humidity being a constant value; and controlling the adjustable power attenuator to adjust its power attenuation value to be consistent with the target power attenuation value. The solution can reduce radiation hazard while ensuring the definition of an image.