GB1501468A - Electro-acoustic transducer unit - Google Patents

Electro-acoustic transducer unit

Info

Publication number
GB1501468A
GB1501468A GB1452875A GB1452875A GB1501468A GB 1501468 A GB1501468 A GB 1501468A GB 1452875 A GB1452875 A GB 1452875A GB 1452875 A GB1452875 A GB 1452875A GB 1501468 A GB1501468 A GB 1501468A
Authority
GB
United Kingdom
Prior art keywords
transducer
inlets
sound
openings
outlets
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.)
Expired
Application number
GB1452875A
Other languages
English (en)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1501468A publication Critical patent/GB1501468A/en
Expired legal-status Critical Current

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

  • 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)
  • Electrophonic Musical Instruments (AREA)
GB1452875A 1974-04-13 1975-04-09 Electro-acoustic transducer unit Expired GB1501468A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742418060 DE2418060B2 (de) 1974-04-13 1974-04-13 Schallaufnahme- und -wiedergabeeinrichtung

Publications (1)

Publication Number Publication Date
GB1501468A true GB1501468A (en) 1978-02-15

Family

ID=5912897

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1452875A Expired GB1501468A (en) 1974-04-13 1975-04-09 Electro-acoustic transducer unit

Country Status (3)

Country Link
DE (1) DE2418060B2 (enExample)
FR (1) FR2267604B1 (enExample)
GB (1) GB1501468A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007109832A1 (en) * 2006-03-28 2007-10-04 Immersion Technology Property Limited Acoustic filter for electroacoustic transducer

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1200308A (en) * 1983-11-23 1986-02-04 Peter Fatovic Directional microphone assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007109832A1 (en) * 2006-03-28 2007-10-04 Immersion Technology Property Limited Acoustic filter for electroacoustic transducer

Also Published As

Publication number Publication date
DE2418060B2 (de) 1976-11-18
FR2267604A1 (enExample) 1975-11-07
DE2418060A1 (de) 1975-10-16
FR2267604B1 (enExample) 1981-02-13

Similar Documents

Publication Publication Date Title
ES408646A1 (es) Una disposicion de alojamiento que incluye una cubierta, para un transductor electro-acustico.
GB1085145A (en) Sound transducer
WO2000045615A3 (en) Apparatus having a housing which accommodates a sound transducer and which has a passage
US3730046A (en) Orally operated electronic musical instrument
GB1344370A (en) Loudspeaker cabinet
US2431962A (en) Reverberation method and system
GB1434056A (en) Telephone calling devices
WO1999060795A3 (en) Apparatus for operation in an on-ear mode and an off-ear mode
US2479806A (en) Acoustical telephone connector for sound recorders
GB963853A (en) Loudspeakers
FR2327697A1 (fr) Enceinte acoustique a bon niveau de reproduction des sons graves
JPS5680864A (en) Tape for doll operating command recorder
GB1492476A (en) Electro-acoustic transducer apparatus
US2168163A (en) Public address system
FR2380704A7 (fr) Enceinte acoustique
ATE12870T1 (de) Einrichtung zum aufnehmen und/oder bearbeiten stereophoner signale.
FR2343388A1 (fr) Enceinte acoustique perfectionnee
KR840001213Y1 (ko) 테이프 레코더
GB1468122A (en) Device for converting acoustic energy into electrical energy and vice versa
NL7613904A (en) Transducer with electromagnetic converter for miniature hearing aid - has chamber with partition partly of foil with hole for push rod and damping
GB1111577A (en) Portable electroacoustic system
FR2362547A1 (fr) Enceinte avec ligne acoustique asservie
JPS5329107A (en) Magnetic recorder
JPS551603A (en) Cassette tape recorder with radio
JPS51134105A (en) Recorder, reproducing equipment and related recording media of multi- dimensional acoustic signals

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee