FR831978A - Loudspeaker with a sound-diffusing element - Google Patents

Loudspeaker with a sound-diffusing element

Info

Publication number
FR831978A
FR831978A FR831978DA FR831978A FR 831978 A FR831978 A FR 831978A FR 831978D A FR831978D A FR 831978DA FR 831978 A FR831978 A FR 831978A
Authority
FR
France
Prior art keywords
loudspeaker
sound
diffusing element
diffusing
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.)
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
Application granted granted Critical
Publication of FR831978A publication Critical patent/FR831978A/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)
FR831978D 1937-01-14 1938-01-12 Loudspeaker with a sound-diffusing element Expired FR831978A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL831978X 1937-01-14

Publications (1)

Publication Number Publication Date
FR831978A true FR831978A (en) 1938-09-16

Family

ID=19842989

Family Applications (1)

Application Number Title Priority Date Filing Date
FR831978D Expired FR831978A (en) 1937-01-14 1938-01-12 Loudspeaker with a sound-diffusing element

Country Status (2)

Country Link
BE (1) BE425729A (en)
FR (1) FR831978A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3006508A1 (en) * 1980-02-21 1981-08-27 Dual Gebrüder Steidinger, 7742 St Georgen Electro-dynamic loudspeaker with extension core plate - generates improved reproductions by using protective sleeve and partial end cap

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3006508A1 (en) * 1980-02-21 1981-08-27 Dual Gebrüder Steidinger, 7742 St Georgen Electro-dynamic loudspeaker with extension core plate - generates improved reproductions by using protective sleeve and partial end cap

Also Published As

Publication number Publication date
BE425729A (en)

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