Invention Grant
- Patent Title: Devices and methods for a high performance electromagnetic speaker based on monolayers
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Application No.: US15147582Application Date: 2016-05-05
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Publication No.: US10284957B2Publication Date: 2019-05-07
- Inventor: Jianchun Dong
- Applicant: Google LLC
- Applicant Address: US CA Mountain View
- Assignee: Google LLC
- Current Assignee: Google LLC
- Current Assignee Address: US CA Mountain View
- Agency: McDonnell Boehnen Hulbert & Berghoff LLP
- Main IPC: H04R25/00
- IPC: H04R25/00 ; H04R7/10 ; H04R3/08 ; H04R9/06 ; H04R9/04 ; H04R31/00

Abstract:
A device is provided that comprises a membrane that includes one or more layers of an electrically resistive material. The device also comprises a film disposed along a surface of the membrane to form a coil. The film includes one or more layers of an electrically conductive material. The device also comprises a support structure coupled to a periphery of the membrane. The device also comprises a magnet arranged to provide a magnetic field that is substantially parallel to the surface of the membrane. The device also comprises a signal conditioner configured to provide an electrical signal to the coil to generate an electrical current flowing through the coil. The electrical current interacts with the magnetic field to cause a vibration of the membrane. Characteristics of the vibration are based on at least the electrical signal provided by the signal conditioner.
Public/Granted literature
- US20170026753A1 Devices and Methods for a High Performance Electromagnetic Speaker Based on Monolayers Public/Granted day:2017-01-26
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