JPWO2017033259A1 - 信号処理装置、スピーカ装置、および信号処理方法 - Google Patents
信号処理装置、スピーカ装置、および信号処理方法 Download PDFInfo
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- JPWO2017033259A1 JPWO2017033259A1 JP2017536096A JP2017536096A JPWO2017033259A1 JP WO2017033259 A1 JPWO2017033259 A1 JP WO2017033259A1 JP 2017536096 A JP2017536096 A JP 2017536096A JP 2017536096 A JP2017536096 A JP 2017536096A JP WO2017033259 A1 JPWO2017033259 A1 JP WO2017033259A1
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- 238000003672 processing method Methods 0.000 title description 3
- 230000005236 sound signal Effects 0.000 claims description 30
- 239000003990 capacitor Substances 0.000 description 40
- 238000006243 chemical reaction Methods 0.000 description 19
- 238000010586 diagram Methods 0.000 description 12
- 238000009499 grossing Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
- H03G3/301—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G11/00—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general
- H03G11/008—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general of digital or coded signals
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G11/00—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general
- H03G11/04—Limiting level dependent on strength of signal; Limiting level dependent on strength of carrier on which signal is modulated
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3089—Control of digital or coded signals
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G7/00—Volume compression or expansion in amplifiers
- H03G7/002—Volume compression or expansion in amplifiers in untuned or low-frequency amplifiers, e.g. audio amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G7/00—Volume compression or expansion in amplifiers
- H03G7/007—Volume compression or expansion in amplifiers of digital or coded signals
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Circuit For Audible Band Transducer (AREA)
- Amplifiers (AREA)
- Control Of Amplification And Gain Control (AREA)
Abstract
Description
2,3…PC
5…インターネット
11…入力I/F
12…DSP
13…増幅回路
14…スピーカ
15…コンデンサ
16…電流制限回路
120…レベル制限部
121…ABS
122…ピークホールド処理部
123…ゲインテーブル
124…平滑処理部
125…ゲイン調整器
150…設定部
151…加算器
152,153…乗算器
154…変換テーブル
155…下限設定部
156…上限設定部
Claims (5)
- 入力信号のレベル制限を行うレベル制限部と、
所定の電荷が供給され、当該電荷を保持する充放電素子と、
前記充放電素子に供給される電荷と、前記レベル制限部がレベル制限を行った後の入力信号のレベルから計算される消費電荷と、の積算値に応じて前記レベル制限部の減衰率を設定する設定部と、
を備えたことを特徴とする信号処理装置。 - 請求項1に記載の信号処理装置において、
前記設定部は、前記充放電素子の最大容量に応じて、前記積算値の最大値を決定することを特徴とする信号処理装置。 - 請求項1または請求項2に記載の信号処理装置において、
前記設定部は、前記積算値が所定値以上である場合に、前記減衰率を最小値に保持して、前記レベル制限を停止させることを特徴とする信号処理装置。 - 請求項1乃至請求項3のいずれかに記載の信号処理装置において、
前記設定部は、前記積算値が所定値以下である場合に、前記減衰率を最大値に保持して、
前記最大値は、前記レベル制限部がレベル制限を行った後の入力信号のレベルから計算される消費電荷と、前記充放電素子に供給される電荷と、が釣り合う値であることを特徴とする信号処理装置。 - 請求項1乃至請求項4のいずれかに記載の信号処理装置と、
前記レベル制限部に前記入力信号として音声信号を入力する入力部と、
前記レベル制限部がレベル制限を行った後の音声信号を入力する増幅回路と、
前記増幅回路で増幅された後の音声信号を入力するスピーカと、
を備えたスピーカ装置。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2015/073712 WO2017033259A1 (ja) | 2015-08-24 | 2015-08-24 | 信号処理装置およびスピーカ装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2017033259A1 true JPWO2017033259A1 (ja) | 2018-06-07 |
JP6620818B2 JP6620818B2 (ja) | 2019-12-18 |
Family
ID=58099691
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2017536096A Active JP6620818B2 (ja) | 2015-08-24 | 2015-08-24 | 信号処理装置、スピーカ装置、および信号処理方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US10418956B2 (ja) |
EP (1) | EP3343766A4 (ja) |
JP (1) | JP6620818B2 (ja) |
CN (1) | CN107925389B (ja) |
WO (1) | WO2017033259A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20210351952A1 (en) * | 2017-06-12 | 2021-11-11 | Audio-Technica Corporation | Data transmission device and data transmission system |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009017725A (ja) * | 2007-07-06 | 2009-01-22 | Toyota Motor Corp | 車両およびその制御方法 |
JP2009094684A (ja) * | 2007-10-05 | 2009-04-30 | Yamaha Corp | 電子機器 |
JP2009141670A (ja) * | 2007-12-06 | 2009-06-25 | Yamaha Corp | 電子機器および音声再生装置 |
JP2011155437A (ja) * | 2010-01-27 | 2011-08-11 | Victor Co Of Japan Ltd | 音声処理装置および音声処理方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56109012A (en) * | 1980-02-01 | 1981-08-29 | Nec Corp | Automatic gain control circuit |
JPS5940713A (ja) | 1982-08-31 | 1984-03-06 | Nippon Gakki Seizo Kk | パルス幅変調増幅回路 |
JP3303585B2 (ja) * | 1995-03-02 | 2002-07-22 | ソニー株式会社 | 分散フィードバック式δς変調器 |
JP4476143B2 (ja) * | 2005-03-18 | 2010-06-09 | 富士通株式会社 | ブレード型コンピュータ、ブレード管理装置、ブレード管理プログラム、及び制御プログラム |
US20070247206A1 (en) * | 2006-04-21 | 2007-10-25 | Vook Dietrich W | Programmable trigger delays |
WO2009041717A1 (ja) | 2007-09-27 | 2009-04-02 | Yamaha Corporation | 電子機器 |
JP4862820B2 (ja) | 2007-12-27 | 2012-01-25 | ヤマハ株式会社 | 音響信号増幅装置 |
CN201623700U (zh) * | 2009-12-30 | 2010-11-03 | 上海迦美信芯通讯技术有限公司 | 一种可校准频率综合器 |
US9788354B2 (en) * | 2013-03-14 | 2017-10-10 | Dexcom, Inc. | Systems and methods for processing and transmitting sensor data |
-
2015
- 2015-08-24 JP JP2017536096A patent/JP6620818B2/ja active Active
- 2015-08-24 EP EP15902229.2A patent/EP3343766A4/en active Pending
- 2015-08-24 WO PCT/JP2015/073712 patent/WO2017033259A1/ja unknown
- 2015-08-24 CN CN201580082601.4A patent/CN107925389B/zh active Active
-
2018
- 2018-01-26 US US15/880,580 patent/US10418956B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009017725A (ja) * | 2007-07-06 | 2009-01-22 | Toyota Motor Corp | 車両およびその制御方法 |
JP2009094684A (ja) * | 2007-10-05 | 2009-04-30 | Yamaha Corp | 電子機器 |
JP2009141670A (ja) * | 2007-12-06 | 2009-06-25 | Yamaha Corp | 電子機器および音声再生装置 |
JP2011155437A (ja) * | 2010-01-27 | 2011-08-11 | Victor Co Of Japan Ltd | 音声処理装置および音声処理方法 |
Also Published As
Publication number | Publication date |
---|---|
US10418956B2 (en) | 2019-09-17 |
WO2017033259A1 (ja) | 2017-03-02 |
CN107925389A (zh) | 2018-04-17 |
EP3343766A1 (en) | 2018-07-04 |
US20180152159A1 (en) | 2018-05-31 |
EP3343766A4 (en) | 2019-07-17 |
JP6620818B2 (ja) | 2019-12-18 |
CN107925389B (zh) | 2021-08-06 |
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