IP Library Granted Patent US 11,477,589
Granted Patent B2
US 11,477,589 · App. 16/348,969 · Granted Oct 18, 2022

Audio signal reproduction apparatus and control method

Inventors: Yousuke Takahashi (Kanagawa, JP); Hidehiko Chaki (Saitama, JP); Tomoki Kurasawa (Tokyo, JP)
Assignee: SONY CORPORATION
H04R29/001H01M10/42H01M10/48H01M10/486H02J7/00H03F3/181H04R3/00H03F2200/03
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Quick Facts
Patent No.
US 11,477,589
App. No.
16/348,969
Granted
Oct 18, 2022
Kind
B2
Abstract

An audio signal reproduction apparatus includes a temperature detection unit detecting a temperature of a battery pack, a voltage detection unit detecting a voltage of the battery pack, and a control unit performing an output control on a basis of temperature information detected by the temperature detection unit and voltage information detected by the voltage detection unit.

Claims (36)

1. An audio signal reproduction apparatus, comprising:

circuitry configured to:

set a first table corresponding to temperature information of a battery pack;

set a plurality of tables corresponding to voltage information of the battery pack, wherein the plurality of tables is different from the first table;

detect a temperature of the battery pack;

detect a voltage of the battery pack;

select, from the plurality of tables, a second table corresponding to the temperature information of the temperature of the battery pack;

acquire, from the first table, first control information corresponding to the temperature information of the temperature of the battery pack;

acquire, from the second table, second control information corresponding to the voltage information of the voltage of the battery pack; and

execute an output control process based on each of the first control information and the second control information.

2. The audio signal reproduction apparatus according to claim 1 , wherein the circuitry is further configured to:

compare the first control information with the second control information; and

select one of the first control information or the second control information based on the comparison.

3. The audio signal reproduction apparatus according to claim 1 , wherein the circuitry is further configured to change a level of an audio signal based on the execution of the output control process.

4. The audio signal reproduction apparatus according to claim 1 , wherein the circuitry is further configured to compress a level of an audio signal to a threshold value based on:

the execution of the output control process, and

the level of the audio signal that exceeds the threshold value.

5. The audio signal reproduction apparatus according to claim 1 , further comprising the battery pack.

6. The audio signal reproduction apparatus according to claim 5 , wherein

the battery pack includes an internal impedance, and

the internal impedance changes based on a change of the temperature of the battery pack.

7. The audio signal reproduction apparatus according to claim 6 , wherein the battery pack includes a lithium ion secondary battery.

8. The audio signal reproduction apparatus according to claim 1 , wherein the circuitry is further configured to communicate with an external device.

9. A control method, comprising:

setting a first table corresponding to temperature information of a battery pack;

setting a plurality of tables corresponding to voltage information of the battery pack, wherein the plurality of tables is different from the first table;

detecting a temperature of the battery pack;

detecting a voltage of the battery pack;

selecting, from the plurality of tables, a second table corresponding to the temperature information of the temperature of the battery pack;

acquiring, from the first table, first control information corresponding to the temperature information of the temperature of the battery pack;

acquiring, from the second table, second control information corresponding to the voltage information of the voltage of the battery pack; and

executing an output control process based on each of the first control information and the second control information.

10. The control method according to claim 9 , further comprising changing a level of an audio signal based on the execution of the output control process.

11. The control method according to claim 9 , further comprising compressing a level of an audio signal to a threshold value based on:

the execution of the output control process, and

the level of the audio signal that exceeds the threshold value.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 17, 2019
From: TAKAHASHI, YOUSUKE; CHAKI, HIDEHIKO; KURASAWA, TOMOKI
To: SONY CORPORATION
Reel/Frame 049488/0929 →
Priority Claims (1)
JP JP2017-008399 · Jan 20, 2017 · national
Continuity (1)
Related Publication 20190273997A1 · Sep 5, 2019