GB487576A - Improvements relating to loud-speakers - Google Patents

Improvements relating to loud-speakers

Info

Publication number
GB487576A
GB487576A GB32452/37A GB3245237A GB487576A GB 487576 A GB487576 A GB 487576A GB 32452/37 A GB32452/37 A GB 32452/37A GB 3245237 A GB3245237 A GB 3245237A GB 487576 A GB487576 A GB 487576A
Authority
GB
United Kingdom
Prior art keywords
nov
loud
speakers
sound
improvements relating
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
GB32452/37A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB487576A publication Critical patent/GB487576A/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
    • H04R1/32—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)
  • Details Of Audible-Bandwidth Transducers (AREA)
GB32452/37A 1936-11-25 1937-11-25 Improvements relating to loud-speakers Expired GB487576A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE487576X 1936-11-25

Publications (1)

Publication Number Publication Date
GB487576A true GB487576A (en) 1938-06-22

Family

ID=6543652

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32452/37A Expired GB487576A (en) 1936-11-25 1937-11-25 Improvements relating to loud-speakers

Country Status (4)

Country Link
US (1) US2174128A (en:Method)
BE (1) BE424804A (en:Method)
FR (1) FR829844A (en:Method)
GB (1) GB487576A (en:Method)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE48233E1 (en) * 2008-05-02 2020-09-29 Bose Corporation Passive directional acoustic radiating

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3268030A (en) * 1965-04-13 1966-08-23 Finn H Magnus Acoustic system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE48233E1 (en) * 2008-05-02 2020-09-29 Bose Corporation Passive directional acoustic radiating

Also Published As

Publication number Publication date
US2174128A (en) 1939-09-26
BE424804A (en:Method)
FR829844A (fr) 1938-07-07

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