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FR936462A - Device translating electric currents into sound vibrations - Google Patents

Device translating electric currents into sound vibrations

Info

Publication number
FR936462A
FR936462A FR936462DA FR936462A FR 936462 A FR936462 A FR 936462A FR 936462D A FR936462D A FR 936462DA FR 936462 A FR936462 A FR 936462A
Authority
FR
France
Prior art keywords
electric currents
sound vibrations
device translating
translating electric
vibrations
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
French (fr)
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.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
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 RCA Corp, Radio Corporation of America filed Critical RCA Corp
Application granted granted Critical
Publication of FR936462A publication Critical patent/FR936462A/en
Expired legal-status Critical Current

Links

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 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2815—Enclosures comprising vibrating or resonating arrangements of the bass reflex type
    • H04R1/2823—Vents, i.e. ports, e.g. shape thereof or tuning thereof with damping material
    • H04R1/2826—Vents, i.e. ports, e.g. shape thereof or tuning thereof with damping material for loudspeaker transducers
    • 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 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2869—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself
    • H04R1/2876—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of damping material, e.g. as cladding
    • H04R1/288—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of damping material, e.g. as cladding for loudspeaker transducers

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
FR936462D 1945-12-28 1946-12-04 Device translating electric currents into sound vibrations Expired FR936462A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US641718XA 1945-12-28 1945-12-28

Publications (1)

Publication Number Publication Date
FR936462A true FR936462A (en) 1948-07-21

Family

ID=22054047

Family Applications (1)

Application Number Title Priority Date Filing Date
FR936462D Expired FR936462A (en) 1945-12-28 1946-12-04 Device translating electric currents into sound vibrations

Country Status (2)

Country Link
FR (1) FR936462A (en)
GB (1) GB641718A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE945768C (en) * 1949-06-05 1956-07-19 Siemens Ag Loudspeaker group arrangement consisting of several loudspeakers built in a row in a common baffle-like baffle
FR2534437A1 (en) * 1982-10-09 1984-04-13 Int Standard Electric Corp Tuning device for bass reflex loudspeaker cabinet
FR2598875A1 (en) * 1986-05-14 1987-11-20 Cabasse Georges Acoustic enclosure with variable tuning
US20230086021A1 (en) * 2021-09-17 2023-03-23 Apple Inc. Dynamic valve for an electronic device

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2885024A (en) * 1959-05-05 Loudspeaker cabinets
US2706530A (en) * 1953-04-29 1955-04-19 Robert R Abrams Functional sound absorber and method of absorbing sound
US2797765A (en) * 1953-06-30 1957-07-02 Shimizu Takakuni Loud-speaker mounted in front panel of open-back cabinet
US2805729A (en) * 1953-09-15 1957-09-10 Read Oliver Loudspeaker enclosure
US2822884A (en) * 1954-10-26 1958-02-11 Edgar H Simpson Loudspeaker enclosure
US2765864A (en) * 1955-03-14 1956-10-09 Gen Electric Acoustic horn assembly
JPS4936416B1 (en) * 1970-02-27 1974-09-30
US3826333A (en) * 1973-03-21 1974-07-30 J Buckwalter Baffle for a sound producing device
US5535284A (en) * 1994-08-03 1996-07-09 Thornhill; James A. Woofer speaker and acoustically coupled sub-woofer speaker system
US7778431B2 (en) * 2006-03-24 2010-08-17 Sony Ericsson Mobile Communications, Ab Sound enhancing stands for portable audio devices
CN105230047B (en) 2013-03-14 2018-12-25 罗伯特·博世有限公司 The method of the low frequency response of microphone system and adjusting MEMS microphone
WO2014152471A1 (en) * 2013-03-15 2014-09-25 RedSonic Sound, Inc. Modular speaker system
DE102015120769A1 (en) * 2015-11-30 2017-06-01 Mahler Engineering Speaker System
US10805717B2 (en) 2018-01-25 2020-10-13 Randall May International, Inc. Acoustic valve porting element

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE945768C (en) * 1949-06-05 1956-07-19 Siemens Ag Loudspeaker group arrangement consisting of several loudspeakers built in a row in a common baffle-like baffle
FR2534437A1 (en) * 1982-10-09 1984-04-13 Int Standard Electric Corp Tuning device for bass reflex loudspeaker cabinet
FR2598875A1 (en) * 1986-05-14 1987-11-20 Cabasse Georges Acoustic enclosure with variable tuning
US20230086021A1 (en) * 2021-09-17 2023-03-23 Apple Inc. Dynamic valve for an electronic device
US12081934B2 (en) * 2021-09-17 2024-09-03 Apple Inc. Dynamic valve for an electronic device

Also Published As

Publication number Publication date
GB641718A (en) 1950-08-16

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