CH290349A - Emetteur de sons. - Google Patents

Emetteur de sons.

Info

Publication number: CH290349A
Authority: CH; Switzerland
Prior art keywords: sound transmitter; transmitter; sound
Prior art date: 1950-01-31

Application number

Other languages

English (en)

Inventor

Multimoteur S A

Original Assignee

Multimoteur S A

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.)

1950-01-31

Filing date

1951-01-29

Publication date

1953-04-30

1951-01-29 Application filed by Multimoteur S A filed Critical Multimoteur S A

1953-04-30 Publication of CH290349A publication Critical patent/CH290349A/fr

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; ELECTRIC HEARING AIDS; 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)

CH290349D 1950-01-31 1951-01-29 Emetteur de sons. CH290349A (fr)

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 (19)

* Cited by examiner, † Cited by third party
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
USD397118S (en)	1997-04-15	1998-08-18	Keating Stephen D	Combined external directional sound dome reflector and deflector for motor vehicle speaker enclosure
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
SE536652C2 (sv) *	2011-07-15	2014-04-29	Kpo Innovation Ab	En akustisk signalgenerator
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
US11877121B2 (en) *	2019-12-04	2024-01-16	Sony Group Corporation	Speaker system and sound output method
USD958119S1 (en) *	2021-08-17	2022-07-19	Shenzhen Xunweijia Technology Development Co., Ltd.	Microphone stand

Family Cites Families (6)

* Cited by examiner, † Cited by third party
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
- NL NL84969D patent/NL84969C/xx active
- US US2732907D patent/US2732907A/en not_active Expired - Lifetime
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 DE DEE5633A patent/DE940357C/de not_active Expired
- 1952-06-19 GB GB15509/52A patent/GB719969A/en not_active Expired

Also Published As

Publication number	Publication date
GB690889A (en)	1953-04-29
GB719969A (en)	1954-12-08
FR1012676A (fr)	1952-07-16
NL84969C (fr)
FR61796E (fr)	1955-05-17
US2732907A (en)	1956-01-31
DE940357C (de)	1956-03-15

Publication	Publication Date	Title
CH290349A (fr)	1953-04-30	Emetteur de sons.
CH305277A (de)	1955-02-15	Fernsehempfänger.
CH295552A (de)	1953-12-31	Fernsehempfänger.
CH294531A (de)	1953-11-15	Fernsehempfänger.
CH296860A (de)	1954-02-28	Fernsehempfänger.
CH304199A (de)	1954-12-31	Signalempfänger.
FR1027110A (fr)	1953-05-07	Dispositif émetteur de sons
CH299128A (de)	1954-05-31	Fernsehempfänger.
CH293717A (fr)	1953-10-15	Stylographe.
NL160445B (nl)		Signaalvertolkingstrap.
FR1019736A (fr)	1953-01-26	Transmetteur téléphonique
CH302330A (fr)	1954-10-15	Récepteur de télévision.
DK91973C (da)	1961-10-16	Fjernsynssender.
CH303467A (de)	1954-11-30	Telephonograph.
GR12649B (el)	1950-10-17	Κτενια δια την κομην (τουαλετταν).
DK83373C (da)	1957-08-26	Transduktorkobling.
DK88328C (da)	1959-12-28	Lydaftager.
DK79743C (da)	1955-08-22	Elektrisk signalmodtager.
DK92171C (da)	1961-11-13	Elektrisk signalmodtager.
DK73988C (da)	1952-04-07	Cykelklokke.
DK81714C (da)	1957-01-07	Fjernsynsmodtager.
ES25236Y (es)	1951-04-16	Pieza de conexión.
ES25509Y (es)	1951-06-01	Infiernillo,
DK90178C (da)	1960-12-27	Vibrationstromle.
GR12406B (el)	1950-04-01	Εξαρτημα νεου ακουστικου αγωγου ηχου.