GB970986A - - Google Patents

Info

Publication number
GB970986A
GB970986A GB970986DA GB970986A GB 970986 A GB970986 A GB 970986A GB 970986D A GB970986D A GB 970986DA GB 970986 A GB970986 A GB 970986A
Authority
GB
United Kingdom
Prior art keywords
plate
slots
acoustic
transducer
arc plate
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.)
Active
Application number
Other languages
English (en)
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 GB970986A publication Critical patent/GB970986A/en
Active legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
    • 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
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Transducers For Ultrasonic Waves (AREA)
GB970986D 1960-02-12 Active GB970986A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB515660A GB942658A (en) 1960-02-12 1960-02-12 Improvements in or relating to electro-acoustic transducers

Publications (1)

Publication Number Publication Date
GB970986A true GB970986A (enrdf_load_stackoverflow)

Family

ID=9790738

Family Applications (2)

Application Number Title Priority Date Filing Date
GB970986D Active GB970986A (enrdf_load_stackoverflow) 1960-02-12
GB515660A Expired GB942658A (en) 1960-02-12 1960-02-12 Improvements in or relating to electro-acoustic transducers

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB515660A Expired GB942658A (en) 1960-02-12 1960-02-12 Improvements in or relating to electro-acoustic transducers

Country Status (4)

Country Link
DE (1) DE1160009B (enrdf_load_stackoverflow)
GB (2) GB942658A (enrdf_load_stackoverflow)
NL (1) NL270840A (enrdf_load_stackoverflow)
SE (1) SE310709B (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1270115B (de) * 1964-01-08 1968-06-12 Standard Elektrik Lorenz Ag Elektrodynamischer Wandler der Fernmeldetechnik, insbesondere dynamische Hoerkapsel
DE3007808A1 (de) * 1980-02-29 1981-09-10 Siemens AG, 1000 Berlin und 8000 München Elektroakustischer wandler

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2684724A (en) * 1948-10-01 1954-07-27 Bell Telephone Labor Inc Sound wave refractor
DE941674C (de) * 1950-12-28 1956-03-22 Siemens ß. Halske Aktiengesellschaft, Berlin und München Lautsprecherkombination, bei der auf er Vorderseite und/oder auf der Rückseite der Membran ein akustisches Filter, vorzugsweise Tiefpaßfilter, für die Begrenzung des abgestrahlten Frequenzbereiches vorgesehen ist
DE1025452B (de) * 1952-09-18 1958-03-06 Standard Elektrik Ag Elektroakustischer Wandler mit Helmholzreseonator
DE1762064U (de) * 1957-12-20 1958-02-27 Lab Wennebostel Dr Ing Sennhei Mikrofon mit elektrodynamischem wandle.

Also Published As

Publication number Publication date
SE310709B (enrdf_load_stackoverflow) 1969-05-12
DE1160009B (de) 1963-12-27
GB942658A (en) 1963-11-27
NL270840A (enrdf_load_stackoverflow)

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