CH290349A - Emetteur de sons. - Google Patents
Emetteur de sons.Info
- Publication number
- CH290349A CH290349A CH290349DA CH290349A CH 290349 A CH290349 A CH 290349A CH 290349D A CH290349D A CH 290349DA CH 290349 A CH290349 A CH 290349A
- Authority
- CH
- Switzerland
- Prior art keywords
- sound transmitter
- transmitter
- sound
- Prior art date
Links
Classifications
-
- 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
- G10K11/18—Methods or devices for transmitting, conducting or directing sound
- G10K11/26—Sound-focusing or directing, e.g. scanning
- G10K11/28—Sound-focusing or directing, e.g. scanning using reflection, e.g. parabolic reflectors
-
- 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
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
- H04R1/345—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for loudspeakers
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Transducers For Ultrasonic Waves (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR290349X | 1950-01-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH290349A true CH290349A (fr) | 1953-04-30 |
Family
ID=8887650
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH290349D CH290349A (fr) | 1950-01-31 | 1951-01-29 | Emetteur de sons. |
Country Status (6)
Country | Link |
---|---|
US (1) | US2732907A (fr) |
CH (1) | CH290349A (fr) |
DE (1) | DE940357C (fr) |
FR (2) | FR1012676A (fr) |
GB (2) | GB690889A (fr) |
NL (1) | NL84969C (fr) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1126928B (de) * | 1959-11-20 | 1962-04-05 | August Wilhelm Johan Va Albert | Einrichtung zur Abstrahlung von Schallwellen |
US3068955A (en) * | 1959-11-27 | 1962-12-18 | Albert A W J Van Hedel | Device for the radiation of sound waves |
US3234501A (en) * | 1962-05-07 | 1966-02-08 | Gen Signal Corp | Protective casing for ultrasonic transducers |
US4357490A (en) * | 1980-07-18 | 1982-11-02 | Dickey Baron C | High fidelity loudspeaker system for aurally simulating wide frequency range point source of sound |
US4564841A (en) * | 1981-01-15 | 1986-01-14 | Neidell Norman S | Navigational systems using phase encoded angular coordinates |
US4421200A (en) * | 1981-12-16 | 1983-12-20 | Ferralli Michael W | Elliptically shaped transducer enclosure |
US4997056A (en) * | 1989-01-31 | 1991-03-05 | Riley Michael D | Ear-focused acoustic reflector |
US5615176A (en) * | 1995-12-20 | 1997-03-25 | Lacarrubba; Emanuel | Acoustic reflector |
US6068080A (en) * | 1998-04-13 | 2000-05-30 | Lacarrubba; Emanuel | Apparatus for the redistribution of acoustic energy |
US6820718B2 (en) * | 2002-10-04 | 2004-11-23 | Lacarrubba Emanuel | Acoustic reproduction device with improved directional characteristics |
US20080123884A1 (en) * | 2006-08-22 | 2008-05-29 | David Donenfeld | Passive hearing aid device |
JP2010268018A (ja) * | 2009-05-12 | 2010-11-25 | Sony Corp | スピーカー装置及び電子機器 |
US9467772B2 (en) | 2011-07-15 | 2016-10-11 | Kpo Innovation Ab | Acoustical signal generator using two transducers and a reflector with a non-flat contour |
US10149058B2 (en) | 2013-03-15 | 2018-12-04 | Richard O'Polka | Portable sound system |
US9084047B2 (en) | 2013-03-15 | 2015-07-14 | Richard O'Polka | Portable sound system |
USD740784S1 (en) | 2014-03-14 | 2015-10-13 | Richard O'Polka | Portable sound device |
KR20220106973A (ko) * | 2019-12-04 | 2022-08-01 | 소니그룹주식회사 | 스피커 시스템 및 음향의 출력 방법 |
USD958119S1 (en) * | 2021-08-17 | 2022-07-19 | Shenzhen Xunweijia Technology Development Co., Ltd. | Microphone stand |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1619981A (en) * | 1923-03-14 | 1927-03-08 | Sargeant P Knut | Sound magnifier |
US1786279A (en) * | 1927-03-31 | 1930-12-23 | Rca Corp | Reflector |
FR41374E (fr) * | 1931-08-17 | 1933-01-07 | Perfectionnements aux amplificateurs de sons | |
US2005300A (en) * | 1933-12-15 | 1935-06-18 | Arthur M Pfalzer | Baffle for loud speakers |
US2239170A (en) * | 1939-04-26 | 1941-04-22 | Crosley Corp | Radio apparatus |
US2643727A (en) * | 1950-01-31 | 1953-06-30 | Elipson S A | Sound transmitting device with an ellipsoidal reflector |
-
0
- US US2732907D patent/US2732907A/en not_active Expired - Lifetime
- NL NL84969D patent/NL84969C/xx active
-
1950
- 1950-01-31 FR FR1012676D patent/FR1012676A/fr not_active Expired
-
1951
- 1951-01-23 GB GB1774/51A patent/GB690889A/en not_active Expired
- 1951-01-29 CH CH290349D patent/CH290349A/fr unknown
- 1951-06-21 FR FR61796D patent/FR61796E/fr not_active Expired
-
1952
- 1952-06-19 GB GB15509/52A patent/GB719969A/en not_active Expired
- 1952-06-19 DE DEE5633A patent/DE940357C/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB690889A (en) | 1953-04-29 |
FR1012676A (fr) | 1952-07-16 |
US2732907A (en) | 1956-01-31 |
NL84969C (fr) | |
FR61796E (fr) | 1955-05-17 |
DE940357C (de) | 1956-03-15 |
GB719969A (en) | 1954-12-08 |
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