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:
May. 07, 2019
Filed:
Apr. 19, 2017
Applicant:
National Sun Yat-sen University, Kaohsiung, TW;
Inventors:
Assignee:
NATIONAL SUN YAT-SEN UNIVERSITY, Kaohsiung, TW;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01S 7/35 (2006.01); H03L 7/24 (2006.01); G01S 13/32 (2006.01); G01S 13/58 (2006.01); G01S 13/00 (2006.01);
U.S. Cl.
CPC ...
G01S 7/352 (2013.01); G01S 13/32 (2013.01); H03L 7/24 (2013.01); G01S 13/584 (2013.01); G01S 2007/358 (2013.01);
Abstract
A quadrature self-injection-locked radar utilizes a phase shifter to make a oscillation signal operating in two phase modes, and utilizes a frequency demodulator for frequency demodulation and a signal processor for signal processing to eliminate the nonlinear distortion caused by self-injection locked phenomenon. Therefore, the self-injection locked radar can be applied to more cases for detecting displacement variations with any range.