DE2100884A1 - - Google Patents

Info

Publication number
DE2100884A1
DE2100884A1 DE19712100884 DE2100884A DE2100884A1 DE 2100884 A1 DE2100884 A1 DE 2100884A1 DE 19712100884 DE19712100884 DE 19712100884 DE 2100884 A DE2100884 A DE 2100884A DE 2100884 A1 DE2100884 A1 DE 2100884A1
Authority
DE
Germany
Prior art keywords
loudspeaker
slot
slots
combination according
width
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.)
Granted
Application number
DE19712100884
Other languages
German (de)
English (en)
Other versions
DE2100884C3 (de
DE2100884B2 (de
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 DE2100884A1 publication Critical patent/DE2100884A1/de
Publication of DE2100884B2 publication Critical patent/DE2100884B2/de
Application granted granted Critical
Publication of DE2100884C3 publication Critical patent/DE2100884C3/de
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
    • H04R1/347—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 for obtaining a phase-shift between the front and back acoustic wave

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
DE19712100884 1970-01-31 1971-01-09 Lautsprecheranordnung mit einer kardioidförmigen Richtcharakteristik Expired DE2100884C3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL7001421A NL7001421A (enExample) 1970-01-31 1970-01-31
NL7001421 1970-01-31

Publications (3)

Publication Number Publication Date
DE2100884A1 true DE2100884A1 (enExample) 1971-08-12
DE2100884B2 DE2100884B2 (de) 1976-07-22
DE2100884C3 DE2100884C3 (de) 1977-03-10

Family

ID=

Also Published As

Publication number Publication date
AT308863B (de) 1973-07-25
FR2077430B1 (enExample) 1974-04-26
FR2077430A1 (enExample) 1971-10-22
DE2100884B2 (de) 1976-07-22
US3739096A (en) 1973-06-12
NL7001421A (enExample) 1971-08-03

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
E77 Valid patent as to the heymanns-index 1977
8339 Ceased/non-payment of the annual fee