Title:
SPEAKER AND METHOD FOR DISPLACEMENT MEASUREMENT
Document Type and Number:
WIPO Patent Application WO/2020/143474
Kind Code:
A1
Abstract:
A speaker and a method for displacement measurement in a speaker unit are disclosed. The speaker comprises: a housing; a speaker unit mounted in the housing, which includes a moving part; and a radar sensor, which is placed by using a chosen stationary position of the speaker, wherein the radar sensor receives radar wave reflected by or transmitting through the moving part, and sends signals for the radar wave to an internal or external processing device so that the processing device processes the signals for the received radar wave from the radar sensor to calculate displacement of the moving part.
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Inventors:
MEIJER DAVID (CN)
Application Number:
PCT/CN2019/128821
Publication Date:
July 16, 2020
Filing Date:
December 26, 2019
Export Citation:
Assignee:
GOERTEK INC (CN)
International Classes:
H04R29/00
Foreign References:
| US9820067B2 | 2017-11-14 | |||
| EP1727392A2 | 2006-11-29 | |||
| CN1207011A | 1999-02-03 |
Attorney, Agent or Firm:
BEYOND TALENT PATENT AGENT FIRM (CN)
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