GB9905540D0 - Flat type loud-speaker - Google Patents

Flat type loud-speaker

Info

Publication number
GB9905540D0
GB9905540D0 GBGB9905540.2A GB9905540A GB9905540D0 GB 9905540 D0 GB9905540 D0 GB 9905540D0 GB 9905540 A GB9905540 A GB 9905540A GB 9905540 D0 GB9905540 D0 GB 9905540D0
Authority
GB
United Kingdom
Prior art keywords
speaker
flat type
type loud
loud
flat
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.)
Withdrawn
Application number
GBGB9905540.2A
Other versions
GB2347818A (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
Priority to GB9905540A priority Critical patent/GB2347818A/en
Priority to DE29905324U priority patent/DE29905324U1/en
Priority to FR9904631A priority patent/FR2792490B3/en
Publication of GB9905540D0 publication Critical patent/GB9905540D0/en
Publication of GB2347818A publication Critical patent/GB2347818A/en
Withdrawn legal-status Critical Current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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
GB9905540A 1999-03-10 1999-03-10 Flat type loud speaker Withdrawn GB2347818A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB9905540A GB2347818A (en) 1999-03-10 1999-03-10 Flat type loud speaker
DE29905324U DE29905324U1 (en) 1999-03-10 1999-03-23 Flat speaker
FR9904631A FR2792490B3 (en) 1999-03-10 1999-04-14 PLANAR SPEAKER

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9905540A GB2347818A (en) 1999-03-10 1999-03-10 Flat type loud speaker
DE29905324U DE29905324U1 (en) 1999-03-10 1999-03-23 Flat speaker
FR9904631A FR2792490B3 (en) 1999-03-10 1999-04-14 PLANAR SPEAKER

Publications (2)

Publication Number Publication Date
GB9905540D0 true GB9905540D0 (en) 1999-05-05
GB2347818A GB2347818A (en) 2000-09-13

Family

ID=27220224

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9905540A Withdrawn GB2347818A (en) 1999-03-10 1999-03-10 Flat type loud speaker

Country Status (3)

Country Link
DE (1) DE29905324U1 (en)
FR (1) FR2792490B3 (en)
GB (1) GB2347818A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003010997A1 (en) * 2001-07-23 2003-02-06 Foster Electric Co., Ltd. Flat speaker of full-face driving

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB312756A (en) * 1928-04-13 1929-06-06 Cyril John Nesbitt Dufort Improvements in and relating to electrically operated loud speakers
FR1269138A (en) * 1960-06-23 1961-08-11 Improvements to loudspeakers, microphones, and similar electrodynamic devices
US3674946A (en) * 1970-12-23 1972-07-04 Magnepan Inc Electromagnetic transducer
JPS5525285A (en) * 1978-08-14 1980-02-22 Sony Corp Speaker
US4471173A (en) * 1982-03-01 1984-09-11 Magnepan, Inc. Piston-diaphragm speaker
US4491698A (en) * 1982-06-17 1985-01-01 David A. Larson Electro-acoustic transducer with diaphragm and blank therefor
US4550228A (en) * 1983-02-22 1985-10-29 Apogee Acoustics, Inc. Ribbon speaker system
WO1991004643A1 (en) * 1989-09-22 1991-04-04 Anthony Leonard Trufitt Planar speakers

Also Published As

Publication number Publication date
DE29905324U1 (en) 1999-07-29
GB2347818A (en) 2000-09-13
FR2792490B3 (en) 2001-03-23
FR2792490A3 (en) 2000-10-20

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Legal Events

Date Code Title Description
AT Applications terminated before publication under section 16(1)
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)