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EP2367365A3 - Speaker with air powered feedback - Google Patents

Speaker with air powered feedback Download PDF

Info

Publication number
EP2367365A3
EP2367365A3 EP11386004A EP11386004A EP2367365A3 EP 2367365 A3 EP2367365 A3 EP 2367365A3 EP 11386004 A EP11386004 A EP 11386004A EP 11386004 A EP11386004 A EP 11386004A EP 2367365 A3 EP2367365 A3 EP 2367365A3
Authority
EP
European Patent Office
Prior art keywords
loudspeaker
cone
shaped membrane
box
bellows
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Withdrawn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
EP11386004A
Other languages
German (de)
French (fr)
Other versions
EP2367365A2 (en
Inventor
Father Serafeim Manelidis Bladimiros
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 EP2367365A2 publication Critical patent/EP2367365A2/en
Publication of EP2367365A3 publication Critical patent/EP2367365A3/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Withdrawn legal-status Critical Current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
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/021—Casings; Cabinets ; Supports therefor; Mountings therein incorporating only one transducer
    • 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 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • 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 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2803—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means for loudspeaker transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

The invention refers to sound reproduction systems and comprises a speaker with air powered feedback mechanism. The loudspeaker (5) is installed inside the box (7). A flexible rubber adaptor (bellows) (1) has been installed at the center of the front side of the loudspeaker's (5) cone-shaped membrane (6). One side of the bellows (1) is attached to the cone-shaped membrane of the loudspeaker (6) and the other to the end of a section of the pipe (2). Pipes (3) are attached to the side holes of the pipe section (2) which end up at the holes on the front side of the speaker box (7).
The entire air powered feedback arrangement is constructed in such a manner as to allow air movement from inside the closed speaker box to the bellows and vice versa through the pipes. The bellows expand and compress respectively with the movement of the cone-shaped membrane of the loudspeaker. This procedure aims to equalize the pressure inside the box each time the cone-shaped membrane of the loudspeaker moves, in order to decrease resistance to the movement of the cone-shaped membrane. This helps increase width of movement of the cone-shaped membrane and improve performance.
Air powered feedback allows minimizing the box's size up to the dimensions of the loudspeaker and creates a good width-frequency ratio increasing the performance of the loudspeaker / woofer.
EP11386004A 2010-03-15 2011-03-11 Speaker with air powered feedback Withdrawn EP2367365A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GR20100100153A GR1007393B (en) 2010-03-15 2010-03-15 Loudspeaker with air feedback

Publications (2)

Publication Number Publication Date
EP2367365A2 EP2367365A2 (en) 2011-09-21
EP2367365A3 true EP2367365A3 (en) 2012-05-16

Family

ID=44201873

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11386004A Withdrawn EP2367365A3 (en) 2010-03-15 2011-03-11 Speaker with air powered feedback

Country Status (2)

Country Link
EP (1) EP2367365A3 (en)
GR (1) GR1007393B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5004066A (en) * 1988-04-04 1991-04-02 Yamaha Corporation Acoustic apparatus
FR2714788A1 (en) * 1993-12-31 1995-07-07 Sono Light Diffusion White noise emitter esp. for detection and analysis of pulmonary noise
US20070121986A1 (en) * 2003-09-22 2007-05-31 Soon-Teak Shim Virtual multi-channel speaker unit
US20080013768A1 (en) * 2006-06-30 2008-01-17 Yamaha Corporation Loudspeaker Enclosure and Loudspeaker System

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5004066A (en) * 1988-04-04 1991-04-02 Yamaha Corporation Acoustic apparatus
FR2714788A1 (en) * 1993-12-31 1995-07-07 Sono Light Diffusion White noise emitter esp. for detection and analysis of pulmonary noise
US20070121986A1 (en) * 2003-09-22 2007-05-31 Soon-Teak Shim Virtual multi-channel speaker unit
US20080013768A1 (en) * 2006-06-30 2008-01-17 Yamaha Corporation Loudspeaker Enclosure and Loudspeaker System

Also Published As

Publication number Publication date
EP2367365A2 (en) 2011-09-21
GR1007393B (en) 2011-09-09

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Effective date: 20141001