NL51541C - - Google Patents

Info

Publication number
NL51541C
NL51541C NL51541DA NL51541C NL 51541 C NL51541 C NL 51541C NL 51541D A NL51541D A NL 51541DA NL 51541 C NL51541 C NL 51541C
Authority
NL
Netherlands
Application number
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.)
Publication of NL51541C publication Critical patent/NL51541C/xx

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
    • H04R1/36—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 by using a single aperture of dimensions not greater than the shortest operating wavelength
    • 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
    • H04R1/323—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only for loudspeakers

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Building Environments (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
NL51541D 1935-04-04 NL51541C (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14600A US2034014A (en) 1935-04-04 1935-04-04 High-fidelity sound reproducing apparatus and method of improving the fidelity thereof

Publications (1)

Publication Number Publication Date
NL51541C true NL51541C (zh)

Family

ID=21766445

Family Applications (1)

Application Number Title Priority Date Filing Date
NL51541D NL51541C (zh) 1935-04-04

Country Status (4)

Country Link
US (1) US2034014A (zh)
DE (1) DE691238C (zh)
FR (1) FR804389A (zh)
NL (1) NL51541C (zh)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2623606A (en) * 1948-06-30 1952-12-30 Corke Alfred James Sound reproduction apparatus
GB765183A (en) * 1954-01-05 1957-01-02 Donald Maynard Chave Improvements in or relating to loudspeakers
US2858899A (en) * 1956-07-03 1958-11-04 Lopez-Henriquez Miguel High fidelity speaker enclosure system
JPS5644148Y2 (zh) * 1976-01-19 1981-10-15
US4313521A (en) * 1980-06-16 1982-02-02 Rodden M Raymond Speaker housing
DE4307655C2 (de) * 1993-03-11 1996-11-07 Automation Dr Meggl Gmbh Lautsprecheranordnung
USD769215S1 (en) * 2014-07-15 2016-10-18 Funktion One Research Loudspeaker
USD780159S1 (en) * 2014-07-15 2017-02-28 Funktion One Research Loudspeaker
USD780158S1 (en) * 2014-07-15 2017-02-28 Funktion One Research Loudspeaker

Also Published As

Publication number Publication date
DE691238C (de) 1940-05-20
FR804389A (fr) 1936-10-22
US2034014A (en) 1936-03-17

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