MY8600266A - Electro-acoustic calling devices - Google Patents

Electro-acoustic calling devices

Info

Publication number
MY8600266A
MY8600266A MY266/86A MY8600266A MY8600266A MY 8600266 A MY8600266 A MY 8600266A MY 266/86 A MY266/86 A MY 266/86A MY 8600266 A MY8600266 A MY 8600266A MY 8600266 A MY8600266 A MY 8600266A
Authority
MY
Malaysia
Prior art keywords
housing
electro
calling devices
aperture
intensity
Prior art date
Application number
MY266/86A
Other languages
English (en)
Inventor
Keith John Vickers
Alan George 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 MY8600266A publication Critical patent/MY8600266A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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

  • 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)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Headphones And Earphones (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
MY266/86A 1982-02-26 1986-12-30 Electro-acoustic calling devices MY8600266A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
MY8600266A true MY8600266A (en) 1986-12-31

Family

ID=10528646

Family Applications (1)

Application Number Title Priority Date Filing Date
MY266/86A MY8600266A (en) 1982-02-26 1986-12-30 Electro-acoustic calling devices

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
NZ203265A (en) 1985-04-30
GB8305038D0 (en) 1983-03-30
HK79485A (en) 1985-10-25
DK78383D0 (da) 1983-02-22
GB2115648B (en) 1985-03-13
IL67935A0 (en) 1983-06-15
ZA831054B (en) 1984-03-28
ATE16879T1 (de) 1985-12-15
AU1149283A (en) 1983-09-01
EP0087908A1 (de) 1983-09-07
DK78383A (da) 1983-08-27
ZW5283A1 (en) 1983-05-11
CA1215163A (en) 1986-12-09
KE3554A (en) 1985-08-30
GB2115648A (en) 1983-09-07
IL67935A (en) 1986-04-29
AU549945B2 (en) 1986-02-20
EP0087908B1 (de) 1985-12-04
JPS58159099A (ja) 1983-09-21
DE3361370D1 (en) 1986-01-16

Similar Documents

Publication Publication Date Title
US3488457A (en) Earphone housing with offset opening for sound quality variation
GB2088951B (en) Acoustic attenuators with active sound cancelling
JPS57122856A (en) Transducer sound lens
GB1545445A (en) Audio amplifier with acoustic feedback suppression circuit
NL181701C (nl) Reflexhoornluidspreker.
GB2115648B (en) Electro-acoustic calling devices
BE889763A (fr) Circuit de reglage de gain
GB2070390B (en) Loudspeaker diaphragm
FR2433268A1 (fr) Perfectionnements apportes aux amenagements de dispositifs acoustiques du type enceintes acoustiques
JPS54670A (en) Alarm wrista watch
JPS5776994A (en) Electroacoustic transducer
DE3168746D1 (en) Electronic time piece including an electro-acoustic transducer
JPS5770000A (en) Stereo playback device
JPS57116495A (en) Speaker device
JPS5229725A (en) Acoustic equipment diaphragm
JPS5439624A (en) Diaphragm for speakers
SU675631A1 (ru) Стержневой пьезоэлектрический преобразователь
JPS5763596A (en) Sound source circuit
JPS52104911A (en) Speaker unit
JPS53106113A (en) Horn speaker
GB1086185A (en) Acoustic source arrangement
GB932276A (en) Electro-acoustic transducers
JPS51140502A (en) Circuit device for transmitting 4 sounds using virtual sound source
JPS52106701A (en) Stereo reproduction and receiver equipment
JPS52108102A (en) Steleo regeneration hearing device