FR2419641B1 - - Google Patents
Info
- Publication number
- FR2419641B1 FR2419641B1 FR7906075A FR7906075A FR2419641B1 FR 2419641 B1 FR2419641 B1 FR 2419641B1 FR 7906075 A FR7906075 A FR 7906075A FR 7906075 A FR7906075 A FR 7906075A FR 2419641 B1 FR2419641 B1 FR 2419641B1
- Authority
- FR
- France
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
- H04S7/30—Control circuits for electronic adaptation of the sound field
- H04S7/307—Frequency adjustment, e.g. tone 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
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S1/00—Two-channel systems
- H04S1/002—Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Amplifiers (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/885,393 US4182930A (en) | 1978-03-10 | 1978-03-10 | Detection and monitoring device |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2419641A1 FR2419641A1 (fr) | 1979-10-05 |
FR2419641B1 true FR2419641B1 (fr) | 1984-04-13 |
Family
ID=25386805
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7906075A Granted FR2419641A1 (fr) | 1978-03-10 | 1979-03-09 | Appareil de traitement de signaux d'audiofrequences |
Country Status (6)
Country | Link |
---|---|
US (1) | US4182930A (fr) |
JP (1) | JPS5924440B2 (fr) |
CA (1) | CA1102000A (fr) |
DE (1) | DE2909352A1 (fr) |
FR (1) | FR2419641A1 (fr) |
GB (1) | GB2016248B (fr) |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4468804A (en) * | 1982-02-26 | 1984-08-28 | Signatron, Inc. | Speech enhancement techniques |
US4490683A (en) * | 1982-09-30 | 1984-12-25 | Ford Motor Company | Electronic control switch for a power boost amplifier |
US4700390A (en) * | 1983-03-17 | 1987-10-13 | Kenji Machida | Signal synthesizer |
US4698842A (en) * | 1985-07-11 | 1987-10-06 | Electronic Engineering And Manufacturing, Inc. | Audio processing system for restoring bass frequencies |
DE3630692A1 (de) * | 1985-09-10 | 1987-04-30 | Canon Kk | Tonsignaluebertragungssystem |
DE3782959T2 (de) * | 1986-04-01 | 1993-06-24 | Matsushita Electric Ind Co Ltd | Erzeuger von niederfrequenten toenen. |
US4982435A (en) * | 1987-04-17 | 1991-01-01 | Sanyo Electric Co., Ltd. | Automatic loudness control circuit |
SE466377B (sv) * | 1989-03-06 | 1992-02-03 | Leif Palmaer Foervaltnings Ab | Saett och anordning foer att foerbaettra uppfattbarheten hos med hjaelp av en kontaktmikrofon upptaget tal |
KR910007982Y1 (ko) * | 1989-09-19 | 1991-10-10 | 삼성전자 주식회사 | 중저음 레벨 제어회로 |
JP3295480B2 (ja) * | 1992-04-24 | 2002-06-24 | パイオニア株式会社 | 周波数コントロール装置および方法 |
ATE173866T1 (de) * | 1992-07-31 | 1998-12-15 | Aphex Systems Ltd | Anordnung zur anhebung der bassfrequenz eines audiosignals |
JP2841257B2 (ja) * | 1992-09-28 | 1998-12-24 | 株式会社河合楽器製作所 | 残響付加装置 |
US5893068A (en) * | 1993-06-03 | 1999-04-06 | Nec Corporation | Method of expanding a frequency range of a digital audio signal without increasing a sampling rate |
US5471527A (en) | 1993-12-02 | 1995-11-28 | Dsc Communications Corporation | Voice enhancement system and method |
US6037993A (en) * | 1997-03-17 | 2000-03-14 | Antec Corporation | Digital BTSC compander system |
US5930373A (en) * | 1997-04-04 | 1999-07-27 | K.S. Waves Ltd. | Method and system for enhancing quality of sound signal |
WO1999026454A1 (fr) * | 1997-11-17 | 1999-05-27 | Srs Labs, Inc. | Systeme de simulation audio pour basses frequences |
US6259482B1 (en) | 1998-03-11 | 2001-07-10 | Matthew F. Easley | Digital BTSC compander system |
US6285767B1 (en) * | 1998-09-04 | 2001-09-04 | Srs Labs, Inc. | Low-frequency audio enhancement system |
DE19928420A1 (de) * | 1999-06-23 | 2000-12-28 | Micronas Gmbh | Verfahren zur Verarbeitung eines Audiosignals |
US7031474B1 (en) * | 1999-10-04 | 2006-04-18 | Srs Labs, Inc. | Acoustic correction apparatus |
US7277767B2 (en) * | 1999-12-10 | 2007-10-02 | Srs Labs, Inc. | System and method for enhanced streaming audio |
US7136493B2 (en) * | 2000-06-28 | 2006-11-14 | Peavey Electronics Corporation | Sub-harmonic generator and stereo expansion processor |
EP1428411B2 (fr) † | 2001-09-21 | 2011-11-30 | Gigaset Communications GmbH | Procede et dispositif de commande de la restitution des basses de signaux audio dans des transducteurs electroacoustiques |
US7242779B2 (en) * | 2002-05-30 | 2007-07-10 | Peavey Electronics Corporation | Methods and apparatus for sub-harmonic generation, stereo expansion and distortion |
US7248702B2 (en) * | 2003-01-06 | 2007-07-24 | Thomas Nelson Packard | Sound enhancement system |
KR20060121121A (ko) * | 2003-12-01 | 2006-11-28 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 선택적 오디오 신호 강화 |
US7778718B2 (en) * | 2005-05-24 | 2010-08-17 | Rockford Corporation | Frequency normalization of audio signals |
TWI339991B (en) * | 2006-04-27 | 2011-04-01 | Univ Nat Chiao Tung | Method for virtual bass synthesis |
JP2007325057A (ja) * | 2006-06-02 | 2007-12-13 | Rohm Co Ltd | 電子ボリウム装置、電子ボリウム制御方法およびそれらを用いた電子機器 |
JP4666229B2 (ja) * | 2006-10-18 | 2011-04-06 | ソニー株式会社 | オーディオ再生装置 |
US8050434B1 (en) | 2006-12-21 | 2011-11-01 | Srs Labs, Inc. | Multi-channel audio enhancement system |
EP2798737B1 (fr) | 2011-12-27 | 2018-10-10 | Dts Llc | Système d'accentuation des basses |
US9247342B2 (en) | 2013-05-14 | 2016-01-26 | James J. Croft, III | Loudspeaker enclosure system with signal processor for enhanced perception of low frequency output |
WO2014190140A1 (fr) | 2013-05-23 | 2014-11-27 | Alan Kraemer | Système d'amélioration audio d'écouteur |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3127476A (en) * | 1964-03-31 | david | ||
US2408692A (en) * | 1942-04-29 | 1946-10-01 | Rca Corp | Signaling system |
US2379714A (en) * | 1942-05-14 | 1945-07-03 | Rca Corp | Audio transmission network |
US3281533A (en) * | 1963-09-03 | 1966-10-25 | Inter Aural Res Inc | Stereophonic sound system |
US3431356A (en) * | 1965-06-04 | 1969-03-04 | Integrated Electronic Corp | Apparatus and method for reconstructing speech |
US3634625A (en) * | 1968-09-23 | 1972-01-11 | Westinghouse Electric Corp | Speech unscrambler |
JPS5723279B2 (fr) * | 1972-06-03 | 1982-05-18 |
-
1978
- 1978-03-10 US US05/885,393 patent/US4182930A/en not_active Expired - Lifetime
-
1979
- 1979-01-29 CA CA320,429A patent/CA1102000A/fr not_active Expired
- 1979-02-02 GB GB7903762A patent/GB2016248B/en not_active Expired
- 1979-03-09 DE DE19792909352 patent/DE2909352A1/de active Granted
- 1979-03-09 JP JP54027577A patent/JPS5924440B2/ja not_active Expired
- 1979-03-09 FR FR7906075A patent/FR2419641A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
GB2016248B (en) | 1982-03-31 |
US4182930A (en) | 1980-01-08 |
GB2016248A (en) | 1979-09-19 |
CA1102000A (fr) | 1981-05-26 |
FR2419641A1 (fr) | 1979-10-05 |
JPS54127205A (en) | 1979-10-03 |
JPS5924440B2 (ja) | 1984-06-09 |
DE2909352C2 (fr) | 1989-01-26 |
DE2909352A1 (de) | 1979-09-20 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
CD | Change of name or company name | ||
TP | Transmission of property | ||
ST | Notification of lapse |