NL6706647A - - Google Patents

Info

Publication number
NL6706647A
NL6706647A NL6706647A NL6706647A NL6706647A NL 6706647 A NL6706647 A NL 6706647A NL 6706647 A NL6706647 A NL 6706647A NL 6706647 A NL6706647 A NL 6706647A NL 6706647 A NL6706647 A NL 6706647A
Authority
NL
Netherlands
Application number
NL6706647A
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
Priority claimed from GB3318765A external-priority patent/GB1059055A/en
Priority claimed from GB2140166A external-priority patent/GB1139770A/en
Application filed filed Critical
Publication of NL6706647A publication Critical patent/NL6706647A/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
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/406—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers microphones

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
NL6706647A 1965-08-03 1967-05-12 NL6706647A (enExample)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3318765A GB1059055A (en) 1965-08-03 1965-08-03 Diaphragm assemblies
GB2140166A GB1139770A (en) 1966-05-13 1966-05-13 Second order pressure gradient microphone

Publications (1)

Publication Number Publication Date
NL6706647A true NL6706647A (enExample) 1967-11-14

Family

ID=26255312

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6706647A NL6706647A (enExample) 1965-08-03 1967-05-12

Country Status (1)

Country Link
NL (1) NL6706647A (enExample)

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