CH207880A - Sound reproduction device. - Google Patents

Sound reproduction device.

Info

Publication number
CH207880A
CH207880A CH207880DA CH207880A CH 207880 A CH207880 A CH 207880A CH 207880D A CH207880D A CH 207880DA CH 207880 A CH207880 A CH 207880A
Authority
CH
Switzerland
Prior art keywords
reproduction device
sound reproduction
sound
reproduction
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer D Telefunken
Original Assignee
Telefunken Gmbh
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 Telefunken Gmbh filed Critical Telefunken Gmbh
Publication of CH207880A publication Critical patent/CH207880A/en

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
    • H04R1/32—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
CH207880D 1937-11-10 1938-11-03 Sound reproduction device. CH207880A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE207880X 1937-11-10

Publications (1)

Publication Number Publication Date
CH207880A true CH207880A (en) 1939-12-15

Family

ID=5793936

Family Applications (1)

Application Number Title Priority Date Filing Date
CH207880D CH207880A (en) 1937-11-10 1938-11-03 Sound reproduction device.

Country Status (5)

Country Link
US (1) US2210477A (en)
BE (1) BE430974A (en)
CH (1) CH207880A (en)
GB (1) GB508458A (en)
NL (1) NL52281C (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2689016A (en) * 1953-04-14 1954-09-14 Henry C Lang Sound reproducing system
US3043912A (en) * 1957-07-10 1962-07-10 Laney William J De Intercom for automobiles
US3065816A (en) * 1958-03-10 1962-11-27 Rangertone Electronics Corp Stereophonic sound distributor
US3080012A (en) * 1958-09-26 1963-03-05 Columbia Broadcasting Syst Inc Stereophonic loudspeaker arrays
US3045064A (en) * 1959-06-01 1962-07-17 Margaret H Sellers Apparatus for transmitting sound from a baseball field
NL267133A (en) * 1960-07-15
US3557324A (en) * 1967-04-28 1971-01-19 Yoshiro Nakamatsu Television receiver having means for causing sound to emanate from picture plane
US3679023A (en) * 1968-08-06 1972-07-25 John C Rankin Loudspeaker enclosure
US3642091A (en) * 1968-10-09 1972-02-15 Pioneer Electronic Corp Underground acoustic device
US3590941A (en) * 1969-10-10 1971-07-06 Arvin Ind Inc Speaker enclosure
US3674108A (en) * 1970-10-29 1972-07-04 David L Beatty Outdoor speaker enclosure
US3964571A (en) * 1975-04-01 1976-06-22 Peter Garland Snell Acoustic system
JPH0724439B2 (en) * 1986-09-13 1995-03-15 シャープ株式会社 Audio equipment
US5173942A (en) * 1986-09-13 1992-12-22 Sharp Kabushiki Kaisha Audio system operable in directional and non-directional modes
US4949386A (en) * 1988-05-23 1990-08-14 Hill Amel L Speaker system
US5033577A (en) * 1988-12-06 1991-07-23 Bose Corporation Room sound reproducing
US8873788B1 (en) * 2010-08-30 2014-10-28 Jeffery James Coombs In-ground audio sub woofer and method of installation
US10240796B1 (en) * 2016-05-20 2019-03-26 Beckwell Companies, LLC Fire pit insert assembly
US10499128B2 (en) * 2018-04-20 2019-12-03 Sonos, Inc. Playback devices having waveguides with drainage features
KR102507425B1 (en) * 2018-10-23 2023-03-09 현대자동차주식회사 Speaker device for vehicle
EP4030781A4 (en) * 2019-09-13 2022-11-09 Panasonic Intellectual Property Management Co., Ltd. Acoustic lens and speaker system

Also Published As

Publication number Publication date
GB508458A (en) 1939-06-30
US2210477A (en) 1940-08-06
BE430974A (en)
NL52281C (en)

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