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1. (WO2018081697) ACCESS CONTROL SYSTEM AND METHOD USING ULTRASONIC TECHNOLOGY

Pub. No.:    WO/2018/081697    International Application No.:    PCT/US2017/059014
Publication Date: Fri May 04 01:59:59 CEST 2018 International Filing Date: Tue Oct 31 00:59:59 CET 2017
IPC: G07C 9/00
Applicants: SCHLAGE LOCK COMPANY LLC
Inventors: RUGGIERI, Manuel
MAURER, Frank
Title: ACCESS CONTROL SYSTEM AND METHOD USING ULTRASONIC TECHNOLOGY
Abstract:
A system including a reader device and a mobile device having a user credential. The reader device includes an ultrasonic transmitter configured to transmit an identifier, and a wireless transceiver configured to receive information from and transmit information to the mobile device. The identifier is configured to be received by a microphone of the mobile device. The mobile device may determine a position of the mobile device based on the identifier.