NZ203265A - Electroacoustic transducer with attenuating shutter - Google Patents

Electroacoustic transducer with attenuating shutter

Info

Publication number
NZ203265A
NZ203265A NZ203265A NZ20326583A NZ203265A NZ 203265 A NZ203265 A NZ 203265A NZ 203265 A NZ203265 A NZ 203265A NZ 20326583 A NZ20326583 A NZ 20326583A NZ 203265 A NZ203265 A NZ 203265A
Authority
NZ
New Zealand
Prior art keywords
electro
calling device
planar member
planar
acoustic
Prior art date
Application number
NZ203265A
Other languages
English (en)
Inventor
K J Vickers
A G Carr
Original Assignee
Gen Electric Co Plc
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 Gen Electric Co Plc filed Critical Gen Electric Co Plc
Publication of NZ203265A publication Critical patent/NZ203265A/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/20Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 

Landscapes

  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Telephone Set Structure (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Headphones And Earphones (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
NZ203265A 1982-02-26 1983-02-14 Electroacoustic transducer with attenuating shutter NZ203265A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8205748 1982-02-26

Publications (1)

Publication Number Publication Date
NZ203265A true NZ203265A (en) 1985-04-30

Family

ID=10528646

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ203265A NZ203265A (en) 1982-02-26 1983-02-14 Electroacoustic transducer with attenuating shutter

Country Status (15)

Country Link
EP (1) EP0087908B1 (de)
JP (1) JPS58159099A (de)
AT (1) ATE16879T1 (de)
AU (1) AU549945B2 (de)
CA (1) CA1215163A (de)
DE (1) DE3361370D1 (de)
DK (1) DK78383A (de)
GB (1) GB2115648B (de)
HK (1) HK79485A (de)
IL (1) IL67935A (de)
KE (1) KE3554A (de)
MY (1) MY8600266A (de)
NZ (1) NZ203265A (de)
ZA (1) ZA831054B (de)
ZW (1) ZW5283A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2168875A (en) * 1984-12-19 1986-06-25 Philips Electronic Associated Electroacoustic calling device
AT400910B (de) * 1994-06-16 1996-04-25 Akg Akustische Kino Geraete Akustischer widerstand, insbesondere für elektroakustische wandler
US6124992A (en) * 1995-02-08 2000-09-26 Seagate Technology Llc System and method for reconstructing a signal wave in a partial response read channel

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1884724A (en) * 1923-06-19 1932-10-25 Western Electric Co Sound box for phonic diaphragms
US3826333A (en) * 1973-03-21 1974-07-30 J Buckwalter Baffle for a sound producing device
FR2273335B1 (de) * 1974-05-31 1979-05-25 Klaxon Sa
GB2082018B (en) * 1980-07-31 1983-10-12 Standard Telephones Cables Ltd Telephone sounder

Also Published As

Publication number Publication date
EP0087908B1 (de) 1985-12-04
ATE16879T1 (de) 1985-12-15
CA1215163A (en) 1986-12-09
IL67935A0 (en) 1983-06-15
IL67935A (en) 1986-04-29
HK79485A (en) 1985-10-25
DK78383D0 (da) 1983-02-22
ZA831054B (en) 1984-03-28
MY8600266A (en) 1986-12-31
DE3361370D1 (en) 1986-01-16
EP0087908A1 (de) 1983-09-07
GB2115648B (en) 1985-03-13
GB2115648A (en) 1983-09-07
GB8305038D0 (en) 1983-03-30
DK78383A (da) 1983-08-27
KE3554A (en) 1985-08-30
ZW5283A1 (en) 1983-05-11
AU549945B2 (en) 1986-02-20
JPS58159099A (ja) 1983-09-21
AU1149283A (en) 1983-09-01

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