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. 14, 2019
Filed:
Jul. 21, 2017
Lg Innotek Co., Ltd., Seoul, KR;
Jae Myoung Kim, Seoul, KR;
Jung Young Bae, Seoul, KR;
Ki Kyung Jeon, Seoul, KR;
Min Yong Choi, Seoul, KR;
LG INNOTEK CO., LTD., Seoul, KR;
Abstract
A doorbell apparatus according to one embodiment of the present disclosure includes an input port configured to receive power; an interface including a plurality of interface components and a first controller that is set to control the plurality of interface components; a battery configured to supply the power to the interface; a switching circuit connected to a switch and configured to change a path of a current that is supplied from the input port according to an ON or OFF state of the switch; and a second controller configured to control charging of the battery and a current supply to the interface using the current that is output from the switching circuit, wherein the second controller limits a current supplied to the interface according to an operation mode of the interface, and the operation mode includes a first operation mode and a second operation mode in which power required inside the interface is less than that of the first operation mode.