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. 10, 2020
Filed:
Aug. 22, 2016
Linkelectronics Co., Ltd., Gyeonggi-do, KR;
Youngsoo Kim, Gyeonggi-do, KR;
Deokheon Kim, Gyeonggi-do, KR;
LINKELECTRONICS CO., LTD., Gyeonggi-Do, KR;
Abstract
An entrance and exit control system and method for Bluetooth, wherein a first Bluetooth module mounted on a digital door lock and including an antenna having directivity toward the outside of a door and a second Bluetooth module mounted on a remote controller are configured to communicate with each other, and the first Bluetooth module or the second Bluetooth module is switched from a slave mode to a master mode when a keypad of the digital door lock or a keypad of the remote controller is touched. The digital door lock may switch, in response to a touch, from a slave to a master to implement a door opening function, and the remote controller may switch, in response to a touch, from a slave to a master to implement the door opening function.