EP3841668A4 - Controlling a limiter adapted for selectively suppressing an audio signal - Google Patents

Controlling a limiter adapted for selectively suppressing an audio signal Download PDF

Info

Publication number: EP3841668A4
Authority: EP; European Patent Office
Prior art keywords: controlling; audio signal; selectively suppressing; limiter adapted; limiter
Prior art date: 2018-08-24
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn

Application number

EP18930864.6A

Other languages

German (de)

French (fr)

Other versions

EP3841668A1 (en

Inventor

Anders Ekman

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Dirac Research AB

Original Assignee

Dirac Research AB

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

2018-08-24

Filing date

2018-08-24

Publication date

2022-03-23

2018-08-24 Application filed by Dirac Research AB filed Critical Dirac Research AB

2021-06-30 Publication of EP3841668A1 publication Critical patent/EP3841668A1/en

2022-03-23 Publication of EP3841668A4 publication Critical patent/EP3841668A4/en

Status Withdrawn legal-status Critical Current

Classifications

- 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
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/02—Manually-operated control
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G5/00—Tone control or bandwidth control in amplifiers
- H03G5/16—Automatic control
- H03G5/165—Equalizers; Volume or gain control in limited frequency bands
- 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
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G7/00—Volume compression or expansion in amplifiers
- H03G7/06—Volume compression or expansion in amplifiers having semiconductor devices
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
- H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
- H03G9/025—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers frequency-dependent volume compression or expansion, e.g. multiple-band systems

Landscapes

Engineering & Computer Science (AREA)
Multimedia (AREA)
Circuit For Audible Band Transducer (AREA)

EP18930864.6A 2018-08-24 2018-08-24 Controlling a limiter adapted for selectively suppressing an audio signal Withdrawn EP3841668A4 (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
PCT/SE2018/050856 WO2020040676A1 (en)	2018-08-24	2018-08-24	Controlling a limiter adapted for selectively suppressing an audio signal

Publications (2)

Publication Number	Publication Date
EP3841668A1 EP3841668A1 (en)	2021-06-30
EP3841668A4 true EP3841668A4 (en)	2022-03-23

Family

ID=69592720

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP18930864.6A Withdrawn EP3841668A4 (en)	2018-08-24	2018-08-24	Controlling a limiter adapted for selectively suppressing an audio signal

Country Status (2)

Country	Link
EP (1)	EP3841668A4 (en)
WO (1)	WO2020040676A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP3163914A2 (en) *	2015-10-28	2017-05-03	Music Group IP Ltd.	Sound level estimation
US20170374444A1 (en) *	2016-06-22	2017-12-28	Plantronics, Inc.	Sound Exposure Limiter

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US7003123B2 (en) *	2001-06-27	2006-02-21	International Business Machines Corp.	Volume regulating and monitoring system
US7013011B1 (en) *	2001-12-28	2006-03-14	Plantronics, Inc.	Audio limiting circuit
WO2007106384A1 (en) *	2006-03-10	2007-09-20	Plantronics, Inc.	Music compatible headset amplifier with anti-startle feature
US20080013751A1 (en) *	2006-07-17	2008-01-17	Per Hiselius	Volume dependent audio frequency gain profile
WO2015128696A1 (en) *	2014-02-27	2015-09-03	Sony Corporation	Gain optimized equalizer
JP6489082B2 (en) *	2016-08-08	2019-03-27	オンキヨー株式会社	Equalizer device and equalizer program

2018
- 2018-08-24 EP EP18930864.6A patent/EP3841668A4/en not_active Withdrawn
- 2018-08-24 WO PCT/SE2018/050856 patent/WO2020040676A1/en not_active Application Discontinuation

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP3163914A2 (en) *	2015-10-28	2017-05-03	Music Group IP Ltd.	Sound level estimation
US20170374444A1 (en) *	2016-06-22	2017-12-28	Plantronics, Inc.	Sound Exposure Limiter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2020040676A1 *

Also Published As

Publication number	Publication date
EP3841668A1 (en)	2021-06-30
WO2020040676A1 (en)	2020-02-27

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Legal Events

Date	Code	Title	Description
2020-02-28	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE
2020-03-02	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE
2021-05-28	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
2021-05-28	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE
2021-06-30	17P	Request for examination filed	Effective date: 20210316
2021-06-30	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
2021-12-01	DAV	Request for validation of the european patent (deleted)
2021-12-01	DAX	Request for extension of the european patent (deleted)
2022-03-23	A4	Supplementary search report drawn up and despatched	Effective date: 20220222
2022-03-23	RIC1	Information provided on ipc code assigned before grant	Ipc: H03G 7/00 20060101ALI20220216BHEP Ipc: H03G 5/16 20060101ALI20220216BHEP Ipc: H03G 11/00 20060101ALI20220216BHEP Ipc: H03G 7/06 20060101ALI20220216BHEP Ipc: H03G 3/30 20060101AFI20220216BHEP
2025-06-13	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN
2025-07-16	18D	Application deemed to be withdrawn	Effective date: 20250301