Invention Grant
- Patent Title: Wireless door lock power transfer system having communications capabilities
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Application No.: US14278420Application Date: 2014-05-15
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Publication No.: US09673868B2Publication Date: 2017-06-06
- Inventor: Keith Curtis
- Applicant: Microchip Technology Incorporated
- Applicant Address: US AZ Chandler
- Assignee: MICROCHIP TECHNOLOGY INCORPORATED
- Current Assignee: MICROCHIP TECHNOLOGY INCORPORATED
- Current Assignee Address: US AZ Chandler
- Agency: Slayden Grubert Beard PLLC
- Main IPC: H02J7/00
- IPC: H02J7/00 ; H04B5/00 ; H01F38/14 ; H02J5/00 ; H02J17/00 ; H02J7/02 ; G07C9/00 ; E05B47/00
Abstract:
A door frame has a first electromagnetic coil and a door lock has a second electromagnetic coil with a door bolt electromagnetically coupling together the first and second electromagnetic coils, thereby forming a transformer. Power is transferred from the door frame to door lock through the transformer. Communications from the door frame to the door lock may be provided by modulating electromagnetic energy to the first electromagnetic coil and demodulating the modulated electromagnetic energy received at the second electromagnetic coil. Communications from the door lock to the door frame may be provided by varying a load on the second electromagnetic coil and detecting the load change at the first electromagnetic coil.
Public/Granted literature
- US20140340032A1 Wireless Door Lock Power Transfer System Having Communications Capabilities Public/Granted day:2014-11-20
Information query
