FR804770A - Appareil de reproduction de sons - Google Patents

Appareil de reproduction de sons

Info

Publication number
FR804770A
FR804770A FR804770DA FR804770A FR 804770 A FR804770 A FR 804770A FR 804770D A FR804770D A FR 804770DA FR 804770 A FR804770 A FR 804770A
Authority
FR
France
Prior art keywords
reproduction device
sound reproduction
sound
reproduction
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)
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.)
BAE Systems Aerospace Inc
Original Assignee
Hazeltine Corp
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 Hazeltine Corp filed Critical Hazeltine Corp
Application granted granted Critical
Publication of FR804770A publication Critical patent/FR804770A/fr
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
    • H04R1/32—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)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Building Environments (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
FR804770D 1935-03-23 1936-03-21 Appareil de reproduction de sons Expired FR804770A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12551A US2020166A (en) 1935-03-23 1935-03-23 Sound reproducing apparatus

Publications (1)

Publication Number Publication Date
FR804770A true FR804770A (fr) 1936-11-02

Family

ID=21755497

Family Applications (1)

Application Number Title Priority Date Filing Date
FR804770D Expired FR804770A (fr) 1935-03-23 1936-03-21 Appareil de reproduction de sons

Country Status (7)

Country Link
US (1) US2020166A (fr)
AT (1) AT149923B (fr)
BE (1) BE414489A (fr)
CH (1) CH191887A (fr)
FR (1) FR804770A (fr)
GB (1) GB459003A (fr)
NL (1) NL44803C (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE970228C (de) * 1937-08-25 1958-08-28 Ing Karl Nowak Schallstrahler mit raeumlich wirkender Wiedergabe
US2423045A (en) * 1943-09-04 1947-06-24 Kellogg M W Co Liquid phase catalytic reactions of hydrocarbons
US2888090A (en) * 1949-10-14 1959-05-26 Telefunken Gmbh Loudspeaker arrangement
US2816619A (en) * 1951-12-04 1957-12-17 John E Karlson Acoustic transducers
US2787332A (en) * 1952-09-06 1957-04-02 Norman C Fulmer Loud-speaker system
DE1098542B (de) * 1954-09-18 1961-02-02 Dr Emil Podszus Lautsprecher aus mehreren Elementen
GB793193A (en) * 1955-02-17 1958-04-09 Pye Ltd An improved acoustic enclosure for loudspeakers
US2858899A (en) * 1956-07-03 1958-11-04 Lopez-Henriquez Miguel High fidelity speaker enclosure system
GB829214A (en) * 1957-01-11 1960-03-02 Douglas Arthur Lyons Improvements in loud speaker systems
AU8027887A (en) * 1986-12-02 1988-06-30 Wolfgang Spors Loudspeaker installation
GR1000561B (el) * 1988-06-01 1992-08-26 Wolfgang Spors Διαταξη μεγαφωνων.
USD772810S1 (en) * 2013-11-08 2016-11-29 Rusty Chisel, LLC Radio charging station

Also Published As

Publication number Publication date
NL44803C (fr)
US2020166A (en) 1935-11-05
AT149923B (de) 1937-06-10
CH191887A (de) 1937-07-15
BE414489A (fr)
GB459003A (en) 1936-12-31

Similar Documents

Publication Publication Date Title
FR770109A (fr) Appareil acoustique
FR804770A (fr) Appareil de reproduction de sons
FR804389A (fr) Appareil de reproduction de sons
FR792815A (fr) Appareil de physiothérapie
FR813717A (fr) Appareil acoustique
FR785647A (fr) Appareil enregistreur de sons
FR822588A (fr) Appareil de reproduction du son
FR799822A (fr) Appareil phonographique
FR807943A (fr) Appareil acoustique
FR808708A (fr) Appareil de restitution photophonique
FR761451A (fr) Appareil enregistreur émetteur de sons
FR802836A (fr) Appareil d'écoute
FR758453A (fr) Appareil hélico-agitateur
FR761581A (fr) Appareil hydroglisseur
FR757185A (fr) Appareil antifumée
FR735509A (fr) Appareil reproducteur de sons
FR729328A (fr) Appareil de cinématographie sonore
FR715456A (fr) Reproducteur de sons perfectionné
FR735152A (fr) Appareil ausculto-percuteur
FR777636A (fr) Enregistrement de sons
FR798050A (fr) Appareil avertisseur musical
FR791856A (fr) Appareil cryptographique
FR949625A (fr) Appareil de reproduction sonore
CH160186A (fr) Appareil de cinématographie sonore.
FR804142A (fr) Appareil pour la diffusion des sons