GB9026679D0 - Loudspeaker - Google Patents

Loudspeaker

Info

Publication number
GB9026679D0
GB9026679D0 GB909026679A GB9026679A GB9026679D0 GB 9026679 D0 GB9026679 D0 GB 9026679D0 GB 909026679 A GB909026679 A GB 909026679A GB 9026679 A GB9026679 A GB 9026679A GB 9026679 D0 GB9026679 D0 GB 9026679D0
Authority
GB
United Kingdom
Prior art keywords
loudspeaker
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Withdrawn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
GB909026679A
Other versions
GB2250658A (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.)
Canon Technology Europe Ltd
Original Assignee
Canon Research Centre 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 Canon Research Centre Europe Ltd filed Critical Canon Research Centre Europe Ltd
Priority to GB9026679A priority Critical patent/GB2250658A/en
Publication of GB9026679D0 publication Critical patent/GB9026679D0/en
Publication of GB2250658A publication Critical patent/GB2250658A/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Withdrawn legal-status Critical Current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
    • 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 
    • H04R1/24—Structural combinations of separate transducers or of two parts of the same transducer and responsive respectively to two or more frequency ranges
    • 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)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
GB9026679A 1990-12-07 1990-12-07 Loudspeaker Withdrawn GB2250658A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9026679A GB2250658A (en) 1990-12-07 1990-12-07 Loudspeaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9026679A GB2250658A (en) 1990-12-07 1990-12-07 Loudspeaker

Publications (2)

Publication Number Publication Date
GB9026679D0 true GB9026679D0 (en) 1991-01-23
GB2250658A GB2250658A (en) 1992-06-10

Family

ID=10686674

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9026679A Withdrawn GB2250658A (en) 1990-12-07 1990-12-07 Loudspeaker

Country Status (1)

Country Link
GB (1) GB2250658A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19710967C1 (en) * 1997-03-17 1998-10-22 Karl Heinz Koeppen Full range speakers
GB2364847B (en) * 2000-07-11 2004-10-13 Kef Audio Compound loudspeaker having a magnet system
CN1311712C (en) * 2000-12-26 2007-04-18 安德斯·萨格伦 Concentric co-planar multiband electro-acoustic converter
JP2005184040A (en) * 2003-12-15 2005-07-07 Sony Corp Apparatus and system for audio signal reproducing
FR2895201A1 (en) * 2005-12-16 2007-06-22 Cabasse Sa Loudspeaker for e.g. home theater system, has block positioned ahead of concave membrane along traveling direction and restituting all spectra audible to human ear, where concave membrane restitutes low frequency band
CA2656924A1 (en) * 2006-07-12 2008-01-17 Anders Sagren High frequency diaphragm and voice coil assembly
GB2442260A (en) * 2006-09-29 2008-04-02 Martin Audio Ltd Loudspeaker diaphragm conforms to surrounding acoustic surface
FR2955446B1 (en) 2010-01-15 2015-06-05 Phl Audio ELECTRODYNAMIC TRANSDUCER WITH DOME AND FLOATING SUSPENSION
FR2955444B1 (en) 2010-01-15 2012-08-03 Phl Audio COAXIAL SPEAKER SYSTEM WITH COMPRESSION CHAMBER
FR2955445B1 (en) 2010-01-15 2013-06-07 Phl Audio ELECTRODYNAMIC TRANSDUCER WITH DOME AND INTERNAL SUSPENSION
DE102015119294B4 (en) * 2015-11-10 2018-05-30 Norman Gerkinsmeyer Coaxial two-way speaker

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB445935A (en) * 1934-10-17 1936-04-17 Alfred Sidney Evans An improved sound reproducing device
US2107757A (en) * 1936-02-29 1938-02-08 Bell Telephone Labor Inc Acoustic device
GB537931A (en) * 1940-02-21 1941-07-14 Donovan Ernest Lea Shorter Improvements in electrostatic loudspeakers
GB1554349A (en) * 1976-11-01 1979-10-17 Stanford Res Inst Int Variable focus ultrasonic transducer means
DE3024777C2 (en) * 1979-06-30 1982-11-04 Pioneer Electronic Corp., Tokyo Coaxial multi-way speaker system with planar membrane
AT366862B (en) * 1980-07-28 1982-05-10 Akg Akustische Kino Geraete ELECTRIC ACOUSTIC CONVERTER ACCORDING TO THE TWO-WAY PRINCIPLE

Also Published As

Publication number Publication date
GB2250658A (en) 1992-06-10

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Legal Events

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