WO2007135678A3 - Direct digital speaker apparatus having a desired directivity pattern - Google Patents

Direct digital speaker apparatus having a desired directivity pattern Download PDF

Info

Publication number
WO2007135678A3
WO2007135678A3 PCT/IL2007/000618 IL2007000618W WO2007135678A3 WO 2007135678 A3 WO2007135678 A3 WO 2007135678A3 IL 2007000618 W IL2007000618 W IL 2007000618W WO 2007135678 A3 WO2007135678 A3 WO 2007135678A3
Authority
WO
WIPO (PCT)
Prior art keywords
direct digital
directivity pattern
speaker apparatus
desired directivity
digital speaker
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.)
Ceased
Application number
PCT/IL2007/000618
Other languages
French (fr)
Other versions
WO2007135678B1 (en
WO2007135678A2 (en
Inventor
Yuval Cohen
Shay Kaplan
Daniel Lewin
Alex Sromin
Yan Wool
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.)
Audio Pixels Ltd
Original Assignee
Audio Pixels 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
Priority to AU2007252847A priority Critical patent/AU2007252847A1/en
Priority to AT07736358T priority patent/ATE553603T1/en
Priority to KR1020137025011A priority patent/KR101411183B1/en
Priority to CN2007800538559A priority patent/CN101884225B/en
Priority to JP2010508965A priority patent/JP5335774B2/en
Priority to US12/601,427 priority patent/US8374056B2/en
Priority to KR1020097025887A priority patent/KR101363127B1/en
Priority to EP07736358A priority patent/EP2158787B1/en
Priority to ES07736358T priority patent/ES2388392T3/en
Application filed by Audio Pixels Ltd filed Critical Audio Pixels Ltd
Publication of WO2007135678A2 publication Critical patent/WO2007135678A2/en
Publication of WO2007135678A3 publication Critical patent/WO2007135678A3/en
Publication of WO2007135678B1 publication Critical patent/WO2007135678B1/en
Anticipated expiration legal-status Critical
Priority to IL202214A priority patent/IL202214A/en
Priority to US13/737,526 priority patent/US20130148827A1/en
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B81—MICROSTRUCTURAL TECHNOLOGY
    • B81B—MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES
    • B81B3/00—Devices comprising flexible or deformable elements, e.g. comprising elastic tongues or membranes
    • B81B3/0018—Structures acting upon the moving or flexible element for transforming energy into mechanical movement or vice versa, i.e. actuators, sensors, generators
    • B81B3/0021—Transducers for transforming electrical into mechanical energy or vice versa
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
    • H02K33/16—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with polarised armatures moving in alternate directions by reversal or energisation of a single coil system
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N13/00—Clutches or holding devices using electrostatic attraction, e.g. using Johnson-Rahbek effect
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/005—Details of transducers, loudspeakers or microphones using digitally weighted transducing elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/403—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers loud-speakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers
    • H04R3/12—Circuits for transducers for distributing signals to two or more loudspeakers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K16/00—Machines with more than one rotor or stator
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
    • H02K2201/18—Machines moving with multiple degrees of freedom
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2430/00—Signal processing covered by H04R, not provided for in its groups
    • H04R2430/20—Processing of the output signals of the acoustic transducers of an array for obtaining a desired directivity characteristic

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Physics & Mathematics (AREA)
  • Otolaryngology (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Hardware Design (AREA)
  • Analytical Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Micromachines (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Control Of Stepping Motors (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Control Of Fluid Pressure (AREA)
  • Electromagnets (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Abstract

Direct digital speaker apparatus receiving a digital input signal and generating sound accordingly, the apparatus comprising an array of pressure-producing elements and a controller operative to compute a timing pattern determining if and when each pressure-producing element is actuated so as to achieve a desired directivity pattern.
PCT/IL2007/000618 2006-05-22 2007-05-21 Direct digital speaker apparatus having a desired directivity pattern Ceased WO2007135678A2 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
ES07736358T ES2388392T3 (en) 2006-05-22 2007-05-21 Direct digital speaker device that has a desired directivity pattern
KR1020137025011A KR101411183B1 (en) 2007-05-21 2007-05-21 Direct digital speaker apparatus having a desired directivity pattern
CN2007800538559A CN101884225B (en) 2006-05-22 2007-05-21 Direct digital loudspeaker with desired directivity pattern and control method thereof
JP2010508965A JP5335774B2 (en) 2006-05-22 2007-05-21 Direct digital speaker device having desired directional pattern
US12/601,427 US8374056B2 (en) 2006-05-22 2007-05-21 Direct digital speaker apparatus having a desired directivity pattern
KR1020097025887A KR101363127B1 (en) 2006-05-22 2007-05-21 Direct digital speaker apparatus having a desired directivity pattern and control method thereof
EP07736358A EP2158787B1 (en) 2006-05-22 2007-05-21 Direct digital speaker apparatus having a desired directivity pattern
AU2007252847A AU2007252847A1 (en) 2006-05-22 2007-05-21 Direct digital speaker apparatus having a desired directivity pattern
AT07736358T ATE553603T1 (en) 2006-05-22 2007-05-21 DIRECT DIGITAL SPEAKER DEVICE HAVING DESIRED DIRECTIONAL CHARACTERISTICS
IL202214A IL202214A (en) 2007-05-21 2009-11-18 Direct digital speaker apparatus having a desired directivity pattern
US13/737,526 US20130148827A1 (en) 2006-05-22 2013-01-09 Direct digital speaker apparatus having a desired directivity pattern

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US80212606P 2006-05-22 2006-05-22
US60/802,126 2006-05-22
US90745007P 2007-04-02 2007-04-02
US60/907,450 2007-04-02
US92420307P 2007-05-03 2007-05-03
US60/924,203 2007-05-03

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US13/737,526 Continuation US20130148827A1 (en) 2006-05-22 2013-01-09 Direct digital speaker apparatus having a desired directivity pattern

Publications (3)

Publication Number Publication Date
WO2007135678A2 WO2007135678A2 (en) 2007-11-29
WO2007135678A3 true WO2007135678A3 (en) 2008-01-17
WO2007135678B1 WO2007135678B1 (en) 2008-02-28

Family

ID=38476118

Family Applications (4)

Application Number Title Priority Date Filing Date
PCT/IL2007/000623 Ceased WO2007135681A1 (en) 2006-05-22 2007-05-21 Arrays of current bearing elements useful for generating pressure waves
PCT/IL2007/000624 Ceased WO2007135682A2 (en) 2006-05-22 2007-05-21 Apparatus for generating pressure and methods of manufacture thereof
PCT/IL2007/000618 Ceased WO2007135678A2 (en) 2006-05-22 2007-05-21 Direct digital speaker apparatus having a desired directivity pattern
PCT/IL2007/000622 Ceased WO2007135680A1 (en) 2006-05-22 2007-05-21 Apparatus and methods for generating pressure waves

Family Applications Before (2)

Application Number Title Priority Date Filing Date
PCT/IL2007/000623 Ceased WO2007135681A1 (en) 2006-05-22 2007-05-21 Arrays of current bearing elements useful for generating pressure waves
PCT/IL2007/000624 Ceased WO2007135682A2 (en) 2006-05-22 2007-05-21 Apparatus for generating pressure and methods of manufacture thereof

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/IL2007/000622 Ceased WO2007135680A1 (en) 2006-05-22 2007-05-21 Apparatus and methods for generating pressure waves

Country Status (11)

Country Link
US (3) US8085964B2 (en)
EP (2) EP2158787B1 (en)
JP (2) JP5180192B2 (en)
KR (2) KR101363127B1 (en)
CN (1) CN101884225B (en)
AT (1) ATE553603T1 (en)
AU (2) AU2007252847A1 (en)
ES (1) ES2388392T3 (en)
MY (1) MY149956A (en)
TW (2) TWI468024B (en)
WO (4) WO2007135681A1 (en)

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US8457338B2 (en) 2006-05-22 2013-06-04 Audio Pixels Ltd. Apparatus and methods for generating pressure waves
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WO2007135679A2 (en) 2006-05-22 2007-11-29 Audio Pixels Ltd. Volume and tone control in direct digital speakers
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