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:
Sep. 12, 2017
Filed:
Dec. 08, 2016
Sercomm Corporation, Taipei, TW;
Chien-Ming Chen, Taipei, TW;
Meng-Chien Chiang, Taipei, TW;
SERCOMM CORPORATION, Taipei, TW;
Abstract
A doorbell system and a doorbell control device are provided. The doorbell system includes a doorbell control device, a transformer, a doorbell interface device, and a chime device. The doorbell control device has a first pin, a second pin, a third pin, and a fourth pin. The doorbell control device is configured to control a conducting state between the first pin and the third pin according to a current or a voltage of the second pin. The first pin is coupled to the second pin. The transformer outputs an AC voltage to the first pin and the fourth pin of the doorbell control device. The doorbell interface device is coupled to the second pin and the fourth pin of the doorbell control device. The chime device is coupled to the third pin and the fourth pin of the doorbell control device.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile