GB2301728B - Electromagnetic acoustic transducers - Google Patents

Electromagnetic acoustic transducers

Info

Publication number
GB2301728B
GB2301728B GB9511232A GB9511232A GB2301728B GB 2301728 B GB2301728 B GB 2301728B GB 9511232 A GB9511232 A GB 9511232A GB 9511232 A GB9511232 A GB 9511232A GB 2301728 B GB2301728 B GB 2301728B
Authority
GB
United Kingdom
Prior art keywords
acoustic transducers
electromagnetic acoustic
electromagnetic
transducers
acoustic
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 - Fee Related
Application number
GB9511232A
Other versions
GB9511232D0 (en
GB2301728A (en
Inventor
Raymond John Wilton
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.)
Knowles Europe Ltd
Original Assignee
Knowles Europe Ltd
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 Knowles Europe Ltd filed Critical Knowles Europe Ltd
Priority to GB9511232A priority Critical patent/GB2301728B/en
Publication of GB9511232D0 publication Critical patent/GB9511232D0/en
Publication of GB2301728A publication Critical patent/GB2301728A/en
Application granted granted Critical
Publication of GB2301728B publication Critical patent/GB2301728B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H04R11/02—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H04R11/04—Microphones

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Headphones And Earphones (AREA)
GB9511232A 1995-06-03 1995-06-03 Electromagnetic acoustic transducers Expired - Fee Related GB2301728B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9511232A GB2301728B (en) 1995-06-03 1995-06-03 Electromagnetic acoustic transducers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9511232A GB2301728B (en) 1995-06-03 1995-06-03 Electromagnetic acoustic transducers

Publications (3)

Publication Number Publication Date
GB9511232D0 GB9511232D0 (en) 1995-08-02
GB2301728A GB2301728A (en) 1996-12-11
GB2301728B true GB2301728B (en) 1999-08-25

Family

ID=10775445

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9511232A Expired - Fee Related GB2301728B (en) 1995-06-03 1995-06-03 Electromagnetic acoustic transducers

Country Status (1)

Country Link
GB (1) GB2301728B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2001264171A1 (en) 2000-05-24 2001-12-03 Sonionmicrotronic Nederland B.V. An assembly comprising an electrical element
GB2427320A (en) * 2005-06-14 2006-12-20 Amina Technologies Ltd Bending wave loudspeaker driven from multiple, different sources

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0137550A1 (en) * 1983-09-15 1985-04-17 Koninklijke Philips Electronics N.V. Loudspeaker system and loudspeaker for converting an n-bit digitized electric signal into an acoustic signal
US4612420A (en) * 1983-09-15 1986-09-16 U.S. Philips Corporation Loudspeaker system for converting a digitized electric signal into an acoustic signal
US4897877A (en) * 1987-05-18 1990-01-30 Oxford Speaker Company Sub-woofer driver combination with dual voice coil arrangement
GB2251355A (en) * 1990-11-17 1992-07-01 Electro Acoustic Ind Limited Loudspeaker having multiple voice coils

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0137550A1 (en) * 1983-09-15 1985-04-17 Koninklijke Philips Electronics N.V. Loudspeaker system and loudspeaker for converting an n-bit digitized electric signal into an acoustic signal
US4612420A (en) * 1983-09-15 1986-09-16 U.S. Philips Corporation Loudspeaker system for converting a digitized electric signal into an acoustic signal
US4897877A (en) * 1987-05-18 1990-01-30 Oxford Speaker Company Sub-woofer driver combination with dual voice coil arrangement
GB2251355A (en) * 1990-11-17 1992-07-01 Electro Acoustic Ind Limited Loudspeaker having multiple voice coils

Also Published As

Publication number Publication date
GB9511232D0 (en) 1995-08-02
GB2301728A (en) 1996-12-11

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Legal Events

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

Effective date: 20090603