DE69937131D1 - Rauschverminderungssystem für Audiosignale - Google Patents
Rauschverminderungssystem für AudiosignaleInfo
- Publication number
- DE69937131D1 DE69937131D1 DE69937131T DE69937131T DE69937131D1 DE 69937131 D1 DE69937131 D1 DE 69937131D1 DE 69937131 T DE69937131 T DE 69937131T DE 69937131 T DE69937131 T DE 69937131T DE 69937131 D1 DE69937131 D1 DE 69937131D1
- Authority
- DE
- Germany
- Prior art keywords
- noise reduction
- audio signals
- reduction system
- audio
- signals
- Prior art date
- 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.)
- Expired - Lifetime
Links
- 230000005236 sound signal Effects 0.000 title 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/1646—Circuits adapted for the reception of stereophonic signals
- H04B1/1661—Reduction of noise by manipulation of the baseband composite stereophonic signal or the decoded left and right channels
-
- 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
- H03G3/34—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise signals, e.g. squelch systems
- H03G3/345—Muting during a short period of time when noise pulses are detected, i.e. blanking
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Noise Elimination (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20294898 | 1998-07-17 | ||
JP20294898A JP3675179B2 (ja) | 1998-07-17 | 1998-07-17 | オーディオ信号の雑音除去装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69937131D1 true DE69937131D1 (de) | 2007-10-31 |
DE69937131T2 DE69937131T2 (de) | 2008-06-19 |
Family
ID=16465824
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69937131T Expired - Lifetime DE69937131T2 (de) | 1998-07-17 | 1999-05-24 | Rauschverminderungssystem für Audiosignale |
Country Status (4)
Country | Link |
---|---|
US (1) | US6690805B1 (de) |
EP (1) | EP0973269B1 (de) |
JP (1) | JP3675179B2 (de) |
DE (1) | DE69937131T2 (de) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001016171A (ja) * | 1999-06-29 | 2001-01-19 | Sanyo Electric Co Ltd | ノイズ除去回路 |
EP1069693B1 (de) * | 1999-07-15 | 2004-10-13 | Mitsubishi Denki Kabushiki Kaisha | Vorrichtung zum Reduzieren von Rauschen |
US7613529B1 (en) | 2000-09-09 | 2009-11-03 | Harman International Industries, Limited | System for eliminating acoustic feedback |
JP3773817B2 (ja) * | 2001-07-13 | 2006-05-10 | 三洋電機株式会社 | ノイズキャンセラ |
DE10139248C2 (de) * | 2001-08-09 | 2003-11-27 | Harman Becker Automotive Sys | Verfahren zur Unterdrückung von Störungen im Empfangssignal eines Stereorundfunkempfängers sowie Stereorundfunkempfänger |
US7103122B2 (en) * | 2001-08-23 | 2006-09-05 | Pioneer Corporation | Noise canceller |
GB0202386D0 (en) * | 2002-02-01 | 2002-03-20 | Cedar Audio Ltd | Method and apparatus for audio signal processing |
JP4274949B2 (ja) * | 2002-03-13 | 2009-06-10 | ハーマン インターナショナル インダストリーズ インコーポレイテッド | オーディオ・フィードバック処理システム |
JP2006510285A (ja) * | 2002-12-16 | 2006-03-23 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Fm受信機における雑音抑圧 |
US8718298B2 (en) * | 2003-12-19 | 2014-05-06 | Lear Corporation | NVH dependent parallel compression processing for automotive audio systems |
JP4218573B2 (ja) * | 2004-04-12 | 2009-02-04 | ソニー株式会社 | ノイズ低減方法及び装置 |
JP4606264B2 (ja) * | 2005-07-19 | 2011-01-05 | 三洋電機株式会社 | ノイズキャンセラ |
JP4765118B2 (ja) * | 2006-04-13 | 2011-09-07 | オンセミコンダクター・トレーディング・リミテッド | ノイズキャンセラ及びそれを用いたam受信装置 |
JP5352952B2 (ja) * | 2006-11-07 | 2013-11-27 | ソニー株式会社 | デジタルフィルタ回路、デジタルフィルタプログラムおよびノイズキャンセリングシステム |
JP5056157B2 (ja) * | 2007-05-18 | 2012-10-24 | ソニー株式会社 | ノイズ低減回路 |
WO2009037733A1 (ja) * | 2007-09-21 | 2009-03-26 | Fujitsu Limited | 能動消音装置および能動消音装置の制御方法 |
JP2010182382A (ja) * | 2009-02-06 | 2010-08-19 | Toshiba Corp | デジタルオーディオ信号補間装置、及びデジタルオーディオ信号補間方法 |
JP2010249939A (ja) * | 2009-04-13 | 2010-11-04 | Sony Corp | ノイズ低減装置、ノイズ判定方法 |
GB2472992A (en) | 2009-08-25 | 2011-03-02 | Zarlink Semiconductor Inc | Reduction of clicking sounds in audio data streams |
JP2011188467A (ja) * | 2010-02-15 | 2011-09-22 | Fujitsu Ten Ltd | 放送受信装置及び、放送受信装置の雑音有無判断方法 |
JP2011199825A (ja) * | 2010-02-23 | 2011-10-06 | Fujitsu Ten Ltd | 放送受信装置及び、放送受信装置の雑音成分検出方法 |
JP2012027186A (ja) * | 2010-07-22 | 2012-02-09 | Sony Corp | 音声信号処理装置、音声信号処理方法及びプログラム |
EP2487801B1 (de) * | 2011-02-10 | 2018-09-05 | Nxp B.V. | Verfahren und Vorrichtung zur Verminderung oder Entfernung von Klickgeräuschen |
EP2709324B1 (de) * | 2012-09-13 | 2014-11-12 | Nxp B.V. | Mehrpfad-Interferenzunterdrückung |
US9357163B2 (en) * | 2012-09-20 | 2016-05-31 | Viavi Solutions Inc. | Characterizing ingress noise |
KR102006734B1 (ko) | 2012-09-21 | 2019-08-02 | 삼성전자 주식회사 | 음성 신호의 처리 방법 및 무선 통신 단말 |
KR102182251B1 (ko) * | 2013-10-25 | 2020-11-24 | 현대모비스 주식회사 | 디지털 오디오의 팝 노이즈 제거 장치 및 방법 |
US9613628B2 (en) * | 2015-07-01 | 2017-04-04 | Gopro, Inc. | Audio decoder for wind and microphone noise reduction in a microphone array system |
FR3049132B1 (fr) * | 2016-03-18 | 2018-03-23 | Continental Automotive France | Procede pour limiter le bruit radio, notamment dans la bande fm, par interpolation polynomiale |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1562891A (en) * | 1977-02-22 | 1980-03-19 | Toko Inc | Noise cancelling systems for fm receivers |
US4574390A (en) | 1983-03-26 | 1986-03-04 | Victor Company Of Japan, Limited | Noise reduction for stereophonic FM signals by high-speed sampling and linear interpolation |
JPS61202537A (ja) | 1985-03-06 | 1986-09-08 | Clarion Co Ltd | Fmステレオ受信機におけるステレオ雑音低減回路 |
JPH0681064B2 (ja) | 1986-09-30 | 1994-10-12 | パイオニア株式会社 | Fm受信機におけるパルス性雑音除去装置 |
US5357544A (en) * | 1992-07-21 | 1994-10-18 | Texas Instruments, Incorporated | Devices, systems, and methods for composite signal decoding |
TW237587B (de) * | 1993-03-19 | 1995-01-01 | Philips Electronics Nv | |
JPH08149098A (ja) * | 1994-11-16 | 1996-06-07 | Mitsubishi Electric Corp | 雑音除去装置 |
-
1998
- 1998-07-17 JP JP20294898A patent/JP3675179B2/ja not_active Expired - Fee Related
-
1999
- 1999-05-20 US US09/315,035 patent/US6690805B1/en not_active Expired - Fee Related
- 1999-05-24 DE DE69937131T patent/DE69937131T2/de not_active Expired - Lifetime
- 1999-05-24 EP EP99303997A patent/EP0973269B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US6690805B1 (en) | 2004-02-10 |
EP0973269A2 (de) | 2000-01-19 |
JP2000036768A (ja) | 2000-02-02 |
DE69937131T2 (de) | 2008-06-19 |
EP0973269A3 (de) | 2002-04-17 |
JP3675179B2 (ja) | 2005-07-27 |
EP0973269B1 (de) | 2007-09-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69937131D1 (de) | Rauschverminderungssystem für Audiosignale | |
DE69720436D1 (de) | Rauschunterdrückung für hochfrequenzsignale | |
DE69821819D1 (de) | Kopfhörer zur akustischen Geräuschverminderung | |
DE19882633T1 (de) | Digitales Störungs-Unterdrückungssystem für hochfrequente Störsignal-Beseitigung | |
DE69921558D1 (de) | Parametrisches Audiosystem | |
DE69637056D1 (de) | Umwandlungsschaltung für Niedrigfrequenz-Tonsignale | |
DE69521942D1 (de) | Supra-Ohr-Kopfhörer zur aktiven Rauschverminderung | |
KR970064007U (ko) | 카 오디오의 탈거 구조 | |
DE60010827D1 (de) | Hintergrundsystem für Audiodatenbeseitigung | |
NO993898L (no) | Akustisk transmisjonssystem | |
DE69939510D1 (de) | Tonsignalverarbeitungsschaltung | |
DE59509450D1 (de) | Equalizer für digitalisierte Signale | |
FI19992243A (fi) | Monikanavavahvistinjärjestelmä | |
DE69927358D1 (de) | Audiosignalprozessor | |
DE69941808D1 (de) | Audiosignalverarbeitung | |
DE60217448D1 (de) | Prozessor für Audiosignale | |
DE60107571D1 (de) | System für aktive lärmverminderung | |
DE60008329D1 (de) | Zeiterfassungssystem für vorbeifahrende Fahrzeuge | |
DE69827057D1 (de) | Geräuschreduzierungsvorrichtung für Radarempfänger | |
DE69819973D1 (de) | Rauschminderungssystem für Audio | |
DE69319840D1 (de) | Rauschverminderung für Videosignale | |
DE69934206D1 (de) | Übertragungssystem für multiplex signale | |
DE69842231D1 (de) | Car-audio-befestigungsvorrichtung | |
DE69731133D1 (de) | Übertragungssystem für korrelierte Signale | |
DE59902086D1 (de) | Fahrzeug-audiosystem |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |