FR2396376A1 - Dispositif mecanique de correction sonore - Google Patents
Dispositif mecanique de correction sonoreInfo
- Publication number
- FR2396376A1 FR2396376A1 FR7719559A FR7719559A FR2396376A1 FR 2396376 A1 FR2396376 A1 FR 2396376A1 FR 7719559 A FR7719559 A FR 7719559A FR 7719559 A FR7719559 A FR 7719559A FR 2396376 A1 FR2396376 A1 FR 2396376A1
- Authority
- FR
- France
- Prior art keywords
- correction device
- sound
- mechanical sound
- sound correction
- stethoscopes
- 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.)
- Granted
Links
- 239000012528 membrane Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B7/00—Instruments for auscultation
- A61B7/02—Stethoscopes
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/02—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators
- G10K11/04—Acoustic filters ; Acoustic resonators
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K13/00—Cones, diaphragms, or the like, for emitting or receiving sound in general
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Multimedia (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Medical Informatics (AREA)
- Otolaryngology (AREA)
- Signal Processing (AREA)
- Biomedical Technology (AREA)
- Percussion Or Vibration Massage (AREA)
- Telephone Set Structure (AREA)
- Circuit For Audible Band Transducer (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
Dispositif permettant d'obtenir une correction mécanique variable et continue de la courbe de réponse d'un ensemble de fréquences sonores. Il agit par action sur les ondes transmises dans le milieu gazeux et comporte une membrane fine placée dans le champ des vibrations sonores, dont on fait varier la surface et la tension au moyen d'un poussoir mobile. Il s'applique aux appareils acoustiques tels que stéthoscopes, capteurs sonores, écouteurs, hauts-parleurs, casques anti-bruit.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7719559A FR2396376A1 (fr) | 1977-06-27 | 1977-06-27 | Dispositif mecanique de correction sonore |
DE19782826889 DE2826889A1 (de) | 1977-06-27 | 1978-06-19 | Akustisches geraet zur veraenderung des frequenzspektrums eines schallsignals |
US05/916,840 US4167223A (en) | 1977-06-27 | 1978-06-19 | Mechanically operable acoustic filter |
JP7554178A JPS5412701A (en) | 1977-06-27 | 1978-06-23 | Mechanically operable acoustic filter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7719559A FR2396376A1 (fr) | 1977-06-27 | 1977-06-27 | Dispositif mecanique de correction sonore |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2396376A1 true FR2396376A1 (fr) | 1979-01-26 |
FR2396376B1 FR2396376B1 (fr) | 1982-12-03 |
Family
ID=9192591
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7719559A Granted FR2396376A1 (fr) | 1977-06-27 | 1977-06-27 | Dispositif mecanique de correction sonore |
Country Status (4)
Country | Link |
---|---|
US (1) | US4167223A (fr) |
JP (1) | JPS5412701A (fr) |
DE (1) | DE2826889A1 (fr) |
FR (1) | FR2396376A1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2480105A1 (fr) * | 1980-04-10 | 1981-10-16 | Liesse Michel | Stethoscope a plusieurs tonalites |
EP0379010A1 (fr) * | 1989-01-16 | 1990-07-25 | KIRCHNER & WILHELM GMBH & CO. | Stéthoscope |
EP0407450A1 (fr) * | 1988-03-23 | 1991-01-16 | Don H Klippert | Stethoscope d'amplification acoustique. |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4373119A (en) * | 1980-12-05 | 1983-02-08 | Motorola, Inc. | Adjustable transducer |
JPS58139986A (ja) * | 1982-02-15 | 1983-08-19 | 日立機電工業株式会社 | クレ−ンの停止位置制御装置 |
JPS6085576U (ja) * | 1983-11-18 | 1985-06-12 | 川鉄鉄構工業株式会社 | リフタ |
US4763753A (en) * | 1984-07-05 | 1988-08-16 | Etymotic Research, Inc. | Insert earphones for audiometry |
JPS61101389A (ja) * | 1984-10-22 | 1986-05-20 | 三井造船株式会社 | コンテナクレ−ン |
JPS61176187U (fr) * | 1985-04-22 | 1986-11-04 | ||
US4720866A (en) * | 1985-09-20 | 1988-01-19 | Seaboard Digital Systems, Inc. | Computerized stethoscopic analysis system and method |
US4977975A (en) * | 1989-09-14 | 1990-12-18 | Lazzeroni John J | Vented motorcycle helmet speaker enclosure |
US4995473A (en) * | 1989-12-21 | 1991-02-26 | Minnesota Mining And Manufacturing Company | Stethoscope with diaphragm head adapter |
EP1774912A1 (fr) * | 1996-02-08 | 2007-04-18 | Hal Greenberger | Stéthoscope à réduction de bruit |
GB2327353A (en) * | 1997-07-22 | 1999-01-27 | Shieh Woei Kang | A Switch-Frequency Stethoscope |
JP4701714B2 (ja) * | 2004-12-28 | 2011-06-15 | ヤマハ株式会社 | 低音フィルタ |
CA2958705C (fr) * | 2014-10-10 | 2019-04-02 | Halliburton Energy Services, Inc. | Procede de fabrication d'un systeme de detection acoustique amelioree |
CN111973215B (zh) * | 2019-05-21 | 2023-08-22 | 无锡市凯顺医疗器械制造有限公司 | 多音频听诊器听头及配合结构及听取多音频的方法 |
AU2021107209A4 (en) * | 2020-11-13 | 2021-12-09 | Stylascope Holdings Pty Ltd | Stethoscope |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US585525A (en) * | 1897-06-29 | Attachment for auditory instruments | ||
US1994008A (en) * | 1935-03-12 | Stethoscope | ||
US1429664A (en) * | 1917-09-18 | 1922-09-19 | Submarine Signal Co | Diaphragm tuning |
US2792902A (en) * | 1952-10-07 | 1957-05-21 | Reichardt Pierre | Portable apparatus for detecting and locating noises |
US3690404A (en) * | 1971-07-30 | 1972-09-12 | Bio Data Inc | Selective frequency stethoscope structure |
-
1977
- 1977-06-27 FR FR7719559A patent/FR2396376A1/fr active Granted
-
1978
- 1978-06-19 DE DE19782826889 patent/DE2826889A1/de not_active Withdrawn
- 1978-06-19 US US05/916,840 patent/US4167223A/en not_active Expired - Lifetime
- 1978-06-23 JP JP7554178A patent/JPS5412701A/ja active Granted
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2480105A1 (fr) * | 1980-04-10 | 1981-10-16 | Liesse Michel | Stethoscope a plusieurs tonalites |
EP0407450A1 (fr) * | 1988-03-23 | 1991-01-16 | Don H Klippert | Stethoscope d'amplification acoustique. |
EP0407450A4 (en) * | 1988-03-23 | 1991-01-30 | Don H Klippert | Acoustical amplifying stethoscope |
EP0379010A1 (fr) * | 1989-01-16 | 1990-07-25 | KIRCHNER & WILHELM GMBH & CO. | Stéthoscope |
Also Published As
Publication number | Publication date |
---|---|
US4167223A (en) | 1979-09-11 |
JPS5412701A (en) | 1979-01-30 |
JPS6327720B2 (fr) | 1988-06-03 |
DE2826889A1 (de) | 1979-01-18 |
FR2396376B1 (fr) | 1982-12-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |