SG11201903481RA - Amplifier unit for operating a piezoelectric sound transducer and/or a dynamic sound transducer, and a sound-generating unit - Google Patents
Amplifier unit for operating a piezoelectric sound transducer and/or a dynamic sound transducer, and a sound-generating unitInfo
- Publication number
- SG11201903481RA SG11201903481RA SG11201903481RA SG11201903481RA SG11201903481RA SG 11201903481R A SG11201903481R A SG 11201903481RA SG 11201903481R A SG11201903481R A SG 11201903481RA SG 11201903481R A SG11201903481R A SG 11201903481RA SG 11201903481R A SG11201903481R A SG 11201903481RA
- Authority
- SG
- Singapore
- Prior art keywords
- sound
- sound transducer
- operating
- dynamic
- piezoelectric
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers
- H03F3/183—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only
- H03F3/185—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only with field-effect devices
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/007—Control dependent on the supply voltage
-
- 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
-
- 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
- H03G3/3026—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being discontinuously variable, e.g. controlled by switching
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Circuit For Audible Band Transducer (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016120545.1A DE102016120545A1 (en) | 2016-10-27 | 2016-10-27 | Amplifier unit for operating a piezoelectric sound transducer and / or a dynamic sound transducer and a sound generating unit |
| PCT/EP2017/077250 WO2018077922A1 (en) | 2016-10-27 | 2017-10-25 | Amplifier unit for operating a piezoelectric sound transducer and/or a dynamic sound transducer, and a sound-generating unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SG11201903481RA true SG11201903481RA (en) | 2019-05-30 |
Family
ID=60268360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SG11201903481RA SG11201903481RA (en) | 2016-10-27 | 2017-10-25 | Amplifier unit for operating a piezoelectric sound transducer and/or a dynamic sound transducer, and a sound-generating unit |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US10826445B2 (en) |
| EP (1) | EP3533239B1 (en) |
| KR (1) | KR20190069542A (en) |
| CN (1) | CN109891911B (en) |
| AU (1) | AU2017351687B2 (en) |
| CA (1) | CA3041930A1 (en) |
| DE (1) | DE102016120545A1 (en) |
| SG (1) | SG11201903481RA (en) |
| WO (1) | WO2018077922A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018116924A1 (en) | 2018-07-12 | 2020-01-16 | USound GmbH | Audio signal processing device for a piezoelectric speaker |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59125199A (en) | 1982-12-29 | 1984-07-19 | Matsushita Electric Ind Co Ltd | Speaker system |
| DE10032666B4 (en) * | 2000-07-05 | 2005-06-02 | Daimlerchrysler Ag | Audio system for a motor vehicle |
| US7890284B2 (en) * | 2002-06-24 | 2011-02-15 | Analog Devices, Inc. | Identification system and method for recognizing any one of a number of different types of devices |
| US20040017921A1 (en) * | 2002-07-26 | 2004-01-29 | Mantovani Jose Ricardo Baddini | Electrical impedance based audio compensation in audio devices and methods therefor |
| JP4152374B2 (en) * | 2004-10-28 | 2008-09-17 | 松下電器産業株式会社 | Speaker driving amplifier and audio output device |
| JP2007004600A (en) * | 2005-06-24 | 2007-01-11 | Toshiba Corp | Electronic apparatus and speaker driving control method |
| GB2456005B (en) * | 2007-12-28 | 2013-03-06 | Wolfson Ltd | Amplifier circuit |
| US8325931B2 (en) * | 2008-05-02 | 2012-12-04 | Bose Corporation | Detecting a loudspeaker configuration |
| CN101646114B (en) | 2008-08-08 | 2012-10-17 | 深圳Tcl新技术有限公司 | Method and device for automatically regulating tone quality of electroacoustic equipment |
| CN102118668B (en) | 2010-01-06 | 2014-10-15 | 宏达国际电子股份有限公司 | Loudspeaker system and loudspeaker driving circuit |
| GB2498649B (en) * | 2011-08-03 | 2014-03-26 | Blackstar Amplification Ltd | Solid state audio power amplifier |
| EP2637423A1 (en) * | 2012-03-06 | 2013-09-11 | Oticon A/S | A test device for a speaker module for a listening device |
| KR101523602B1 (en) * | 2012-08-31 | 2015-05-29 | 주식회사 팬택 | Terminal and method for operating piezo speaker |
| CN204190934U (en) | 2014-11-24 | 2015-03-04 | 青岛歌尔声学科技有限公司 | The voicefrequency circuit that a kind of power output is adjustable on a large scale and acoustic product |
| JP5990627B1 (en) | 2015-05-31 | 2016-09-14 | オーツェイド株式会社 | Speaker |
-
2016
- 2016-10-27 DE DE102016120545.1A patent/DE102016120545A1/en not_active Withdrawn
-
2017
- 2017-10-25 AU AU2017351687A patent/AU2017351687B2/en not_active Expired - Fee Related
- 2017-10-25 WO PCT/EP2017/077250 patent/WO2018077922A1/en unknown
- 2017-10-25 CN CN201780066235.2A patent/CN109891911B/en active Active
- 2017-10-25 US US16/345,428 patent/US10826445B2/en active Active
- 2017-10-25 SG SG11201903481RA patent/SG11201903481RA/en unknown
- 2017-10-25 KR KR1020197014705A patent/KR20190069542A/en not_active Application Discontinuation
- 2017-10-25 EP EP17794701.7A patent/EP3533239B1/en active Active
- 2017-10-25 CA CA3041930A patent/CA3041930A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018077922A1 (en) | 2018-05-03 |
| AU2017351687B2 (en) | 2022-01-27 |
| CN109891911B (en) | 2021-11-02 |
| AU2017351687A1 (en) | 2019-06-13 |
| DE102016120545A1 (en) | 2018-05-03 |
| CA3041930A1 (en) | 2018-05-03 |
| KR20190069542A (en) | 2019-06-19 |
| EP3533239B1 (en) | 2021-01-27 |
| EP3533239A1 (en) | 2019-09-04 |
| US20190253026A1 (en) | 2019-08-15 |
| CN109891911A (en) | 2019-06-14 |
| US10826445B2 (en) | 2020-11-03 |
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