GB495240A - Improvements in loudspeakers - Google Patents

Improvements in loudspeakers

Info

Publication number
GB495240A
GB495240A GB958/38A GB95838A GB495240A GB 495240 A GB495240 A GB 495240A GB 958/38 A GB958/38 A GB 958/38A GB 95838 A GB95838 A GB 95838A GB 495240 A GB495240 A GB 495240A
Authority
GB
United Kingdom
Prior art keywords
cone
partitions
loud
jan
height
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
GB958/38A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB495240A publication Critical patent/GB495240A/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)
  • Diaphragms For Electromechanical Transducers (AREA)
GB958/38A 1937-01-14 1938-01-11 Improvements in loudspeakers Expired GB495240A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL495240X 1937-01-14

Publications (1)

Publication Number Publication Date
GB495240A true GB495240A (en) 1938-11-09

Family

ID=19786727

Family Applications (1)

Application Number Title Priority Date Filing Date
GB958/38A Expired GB495240A (en) 1937-01-14 1938-01-11 Improvements in loudspeakers

Country Status (3)

Country Link
BE (1) BE425730A (enrdf_load_stackoverflow)
FR (1) FR832031A (enrdf_load_stackoverflow)
GB (1) GB495240A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
FR832031A (fr) 1938-09-20
BE425730A (enrdf_load_stackoverflow)

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