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:
Dec. 04, 2018
Filed:
Dec. 21, 2017
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Yuichirou Hirowatari, Osaka, JP;
Abstract
A lighting control system includes: a first control device; a detector; a second control device; and a lighting device. The first control device transmits a PWM signal to the second control device. The second control device receives the PWM signal and acquires a detection signal indicating a detection result of the detector, and transmits to the lighting device a dimming signal corresponding to either one of the PWM signal or the detection signal. The PWM signal includes either one of a dimming PWM signal whose duty ratio is within a predetermined range or a detection control PWM signal whose duty ratio is outside the predetermined range. When the dimming PWM signal is received, the second control device performs dimming control on the lighting device, and when the detection control PWM signal is received, the second control device performs lighting control on the lighting device according to the detection signal.