Invention Grant
- Patent Title: Audio reproduction device
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Application No.: US17415981Application Date: 2019-10-09
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Publication No.: US12003945B2Publication Date: 2024-06-04
- Inventor: Shinsaku Saijo
- Applicant: SONY GROUP CORPORATION
- Applicant Address: JP Tokyo
- Assignee: SONY GROUP CORPORATION
- Current Assignee: SONY GROUP CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: CHIP LAW GROUP
- Priority: JP 18247467 2018.12.28
- International Application: PCT/JP2019/039838 2019.10.09
- International Announcement: WO2020/137082A 2020.07.02
- Date entered country: 2021-06-18
- Main IPC: H04S7/00
- IPC: H04S7/00 ; H04R3/00

Abstract:
To provide an audio reproduction device including: a signal processing circuit that generates multi-channel audio data; an attenuation amount control unit that is connected to the signal processing circuit and controls an attenuation amount of audio data of each channel; and a speaker device that is driven by a multi-channel audio signal from the attenuation amount control unit and has multi-channel speakers including a woofer, in which the attenuation amount control unit estimates, from an audio data value of each channel, a total value of currents flowing through the speaker device, and controls the attenuation amount in such a way that the estimated total value of currents does not exceed a predetermined value that has been set in advance, and the attenuation amount is controlled in accordance with a priority that has been set in advance in such a way that relationships between the channels are maintained.
Public/Granted literature
- US20210385603A1 AUDIO REPRODUCTION DEVICE Public/Granted day:2021-12-09
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