GB2348563B - Loudspeaker drive units and loudspeaker systems - Google Patents

Loudspeaker drive units and loudspeaker systems

Info

Publication number
GB2348563B
GB2348563B GB9907650A GB9907650A GB2348563B GB 2348563 B GB2348563 B GB 2348563B GB 9907650 A GB9907650 A GB 9907650A GB 9907650 A GB9907650 A GB 9907650A GB 2348563 B GB2348563 B GB 2348563B
Authority
GB
United Kingdom
Prior art keywords
loudspeaker
drive units
systems
loudspeaker drive
loudspeaker systems
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 - Lifetime
Application number
GB9907650A
Other versions
GB2348563A (en
GB9907650D0 (en
Inventor
Peter Alexander Fryer
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.)
B&W Loudspeakers Ltd
Original Assignee
B&W Loudspeakers 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 B&W Loudspeakers Ltd filed Critical B&W Loudspeakers Ltd
Priority to GB9907650A priority Critical patent/GB2348563B/en
Publication of GB9907650D0 publication Critical patent/GB9907650D0/en
Publication of GB2348563A publication Critical patent/GB2348563A/en
Application granted granted Critical
Publication of GB2348563B publication Critical patent/GB2348563B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • H04R7/20—Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
GB9907650A 1999-04-01 1999-04-01 Loudspeaker drive units and loudspeaker systems Expired - Lifetime GB2348563B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9907650A GB2348563B (en) 1999-04-01 1999-04-01 Loudspeaker drive units and loudspeaker systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9907650A GB2348563B (en) 1999-04-01 1999-04-01 Loudspeaker drive units and loudspeaker systems

Publications (3)

Publication Number Publication Date
GB9907650D0 GB9907650D0 (en) 1999-05-26
GB2348563A GB2348563A (en) 2000-10-04
GB2348563B true GB2348563B (en) 2003-07-16

Family

ID=10850906

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9907650A Expired - Lifetime GB2348563B (en) 1999-04-01 1999-04-01 Loudspeaker drive units and loudspeaker systems

Country Status (1)

Country Link
GB (1) GB2348563B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107301934A (en) * 2017-08-16 2017-10-27 宁波照华环保科技有限公司 Elastic reset membrane and current inductive switch
CN107275149B (en) * 2017-08-22 2020-05-19 宁波照华环保科技有限公司 Elastic reset device on water flow inductive switch
CN112291685B (en) * 2020-10-29 2022-04-12 维沃移动通信有限公司 Method and device for balancing loudspeaker vibration, loudspeaker and storage medium
WO2023215856A1 (en) * 2022-05-06 2023-11-09 Sonos, Inc. Suspension members for audio playback devices

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2846520A (en) * 1955-11-22 1958-08-05 Philip J Brownscombe Low frequency loudspeaker
GB830281A (en) * 1957-06-21 1960-03-16 Philip Joslyn Brownscombe Improvements in low frequency loudspeaker
EP0123359A1 (en) * 1983-04-26 1984-10-31 Koninklijke Philips Electronics N.V. Electroacoustic transducer unit with reduced resonant frequency and mechanical spring with negative stiffness, preferably used in such a transducer unit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2846520A (en) * 1955-11-22 1958-08-05 Philip J Brownscombe Low frequency loudspeaker
GB830281A (en) * 1957-06-21 1960-03-16 Philip Joslyn Brownscombe Improvements in low frequency loudspeaker
EP0123359A1 (en) * 1983-04-26 1984-10-31 Koninklijke Philips Electronics N.V. Electroacoustic transducer unit with reduced resonant frequency and mechanical spring with negative stiffness, preferably used in such a transducer unit

Also Published As

Publication number Publication date
GB2348563A (en) 2000-10-04
GB9907650D0 (en) 1999-05-26

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20190331