Title:
２線式通信システム
Document Type and Number:
Japanese Patent JP7241343
Kind Code:
B2
Abstract:
To provide a two-wire communication system that is inexpensive and can detect disconnection between a microphone module and a slave chip.SOLUTION: A master chip 11 provided on a master board 10 is connected to a slave chip 21 provided on a slave board 20 through a two-wire bus. A digital signal obtained by applying analog-digital conversion by an AD converter 22 to an audio signal output from an audio output terminal of a microphone module 30 including an analog microphone capsule 31 is input into the slave chip 11.SELECTED DRAWING: Figure 1
Inventors:
Takemoto Makoto
Application Number:
JP2019048275A
Publication Date:
March 17, 2023
Filing Date:
March 15, 2019
Export Citation:
Assignee:
Panasonic IP Management Co., Ltd.
International Classes:
H04B3/50; B60R11/02; B60R16/023
Domestic Patent References:
| JP2012085271A | ||||
| JP2014534686A | ||||
| JP2011019160A | ||||
| JP2016034075A |
Foreign References:
| WO2016088189A1 | ||||
| WO2018039344A1 |
Attorney, Agent or Firm:
Patent Attorney Corporation Washida International Patent Office
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