FR61796E - Perfectionnements apportés aux dispositifs émetteurs de son - Google Patents

Perfectionnements apportés aux dispositifs émetteurs de son

Info

Publication number
FR61796E
FR61796E FR61796DA FR61796E FR 61796 E FR61796 E FR 61796E FR 61796D A FR61796D A FR 61796DA FR 61796 E FR61796 E FR 61796E
Authority
FR
France
Prior art keywords
emitting devices
sound emitting
sound
devices
emitting
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
Application number
Other languages
English (en)
Inventor
Joseph Leon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MULTIMOTEUR
Original Assignee
MULTIMOTEUR
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.)
Filing date
Publication date
Application filed by MULTIMOTEUR filed Critical MULTIMOTEUR
Application granted granted Critical
Publication of FR61796E publication Critical patent/FR61796E/fr
Expired legal-status Critical Current

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)
  • Transducers For Ultrasonic Waves (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
FR61796D 1950-01-31 1951-06-21 Perfectionnements apportés aux dispositifs émetteurs de son Expired FR61796E (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR290349X 1950-01-31

Publications (1)

Publication Number Publication Date
FR61796E true FR61796E (fr) 1955-05-17

Family

ID=8887650

Family Applications (2)

Application Number Title Priority Date Filing Date
FR1012676D Expired FR1012676A (fr) 1950-01-31 1950-01-31 Perfectionnements apportés aux dispositifs émetteurs de son
FR61796D Expired FR61796E (fr) 1950-01-31 1951-06-21 Perfectionnements apportés aux dispositifs émetteurs de son

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR1012676D Expired FR1012676A (fr) 1950-01-31 1950-01-31 Perfectionnements apportés aux dispositifs émetteurs de son

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)

* 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
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
CN103650532B (zh) * 2011-07-15 2017-07-04 Kpo创新公司 使用两个换能器和具有非平坦轮廓的反射器的声音信号发生器
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
CN114667739A (zh) * 2019-12-04 2022-06-24 索尼集团公司 扬声器系统和声音输出方法
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

Also Published As

Publication number Publication date
DE940357C (de) 1956-03-15
NL84969C (fr)
FR1012676A (fr) 1952-07-16
GB690889A (en) 1953-04-29
US2732907A (en) 1956-01-31
GB719969A (en) 1954-12-08
CH290349A (fr) 1953-04-30

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