JP5552614B2 - デジタルスピーカー駆動装置，デジタルスピーカー装置，アクチュエータ，平面ディスプレイ装置及び携帯電子機器 - Google Patents

デジタルスピーカー駆動装置，デジタルスピーカー装置，アクチュエータ，平面ディスプレイ装置及び携帯電子機器 Download PDF

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Publication number
JP5552614B2
JP5552614B2 JP2008314438A JP2008314438A JP5552614B2 JP 5552614 B2 JP5552614 B2 JP 5552614B2 JP 2008314438 A JP2008314438 A JP 2008314438A JP 2008314438 A JP2008314438 A JP 2008314438A JP 5552614 B2 JP5552614 B2 JP 5552614B2
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JP
Japan
Prior art keywords
digital
speaker
signal
circuit
modulator
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 - Fee Related
Application number
JP2008314438A
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English (en)
Japanese (ja)
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JP2010028783A5 (cg-RX-API-DMAC10.html
JP2010028783A (ja
Inventor
淳一 岡村
彰 安田
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.)
Trigence Semiconductor Inc
Original Assignee
Trigence Semiconductor Inc
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 JP2008314438A priority Critical patent/JP5552614B2/ja
Application filed by Trigence Semiconductor Inc filed Critical Trigence Semiconductor Inc
Priority to EP09766515.2A priority patent/EP2187657A4/en
Priority to CN200980100413.4A priority patent/CN101803401B/zh
Priority to PCT/JP2009/059867 priority patent/WO2009154067A1/ja
Priority to KR1020107005223A priority patent/KR20110030414A/ko
Priority to CN201710272742.3A priority patent/CN107277707B/zh
Priority to CN201310273303.6A priority patent/CN103401559B/zh
Publication of JP2010028783A publication Critical patent/JP2010028783A/ja
Priority to US12/659,813 priority patent/US8306244B2/en
Publication of JP2010028783A5 publication Critical patent/JP2010028783A5/ja
Priority to US13/665,320 priority patent/US9226053B2/en
Application granted granted Critical
Publication of JP5552614B2 publication Critical patent/JP5552614B2/ja
Priority to US14/919,349 priority patent/US9693136B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
    • H03F3/211—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only using a combination of several amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
    • H03F3/217—Class D power amplifiers; Switching amplifiers
    • 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
    • H04R3/00—Circuits for transducers
    • H04R3/12—Circuits for transducers for distributing signals to two or more loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • 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
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1008—Earpieces of the supra-aural or circum-aural type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R15/00—Magnetostrictive transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2227/00—Details of public address [PA] systems covered by H04R27/00 but not provided for in any of its subgroups
    • H04R2227/003—Digital PA systems using, e.g. LAN or internet
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2400/00—Loudspeakers
    • H04R2400/11—Aspects regarding the frame of loudspeaker transducers
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/13—Acoustic transducers and sound field adaptation in vehicles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/15—Transducers incorporated in visual displaying devices, e.g. televisions, computer displays, laptops
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R27/00—Public address systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Headphones And Earphones (AREA)
JP2008314438A 2008-06-16 2008-12-10 デジタルスピーカー駆動装置，デジタルスピーカー装置，アクチュエータ，平面ディスプレイ装置及び携帯電子機器 Expired - Fee Related JP5552614B2 (ja)

Priority Applications (10)

Application Number Priority Date Filing Date Title
JP2008314438A JP5552614B2 (ja) 2008-06-16 2008-12-10 デジタルスピーカー駆動装置，デジタルスピーカー装置，アクチュエータ，平面ディスプレイ装置及び携帯電子機器
CN200980100413.4A CN101803401B (zh) 2008-06-16 2009-05-29 数字扬声器驱动装置、数字扬声器装置、数字致动器、平面显示器装置和便携式电子设备
PCT/JP2009/059867 WO2009154067A1 (ja) 2008-06-16 2009-05-29 デジタルスピーカー駆動装置
KR1020107005223A KR20110030414A (ko) 2008-06-16 2009-05-29 디지털 스피커 구동장치
CN201710272742.3A CN107277707B (zh) 2008-06-16 2009-05-29 数字扬声器装置和便携式电子设备
CN201310273303.6A CN103401559B (zh) 2008-06-16 2009-05-29 数字扬声器驱动装置、数字扬声器装置、数字致动器、平面显示器装置和便携式电子设备
EP09766515.2A EP2187657A4 (en) 2008-06-16 2009-05-29 DRIVE DEVICE FOR DIGITAL SPEAKERS
US12/659,813 US8306244B2 (en) 2008-06-16 2010-03-22 Digital speaker driving apparatus
US13/665,320 US9226053B2 (en) 2008-06-16 2012-10-31 Digital speaker driving apparatus
US14/919,349 US9693136B2 (en) 2008-06-16 2015-10-21 Digital speaker driving apparatus

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2008156284 2008-06-16
JP2008156284 2008-06-16
JP2008314438A JP5552614B2 (ja) 2008-06-16 2008-12-10 デジタルスピーカー駆動装置，デジタルスピーカー装置，アクチュエータ，平面ディスプレイ装置及び携帯電子機器

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2014081167A Division JP5764691B2 (ja) 2008-06-16 2014-04-10 ヘッドフォン装置及びパーソナルコンピュータ

Publications (3)

Publication Number Publication Date
JP2010028783A JP2010028783A (ja) 2010-02-04
JP2010028783A5 JP2010028783A5 (cg-RX-API-DMAC10.html) 2012-02-02
JP5552614B2 true JP5552614B2 (ja) 2014-07-16

Family

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Family Applications (5)

Application Number Title Priority Date Filing Date
JP2008314438A Expired - Fee Related JP5552614B2 (ja) 2008-06-16 2008-12-10 デジタルスピーカー駆動装置，デジタルスピーカー装置，アクチュエータ，平面ディスプレイ装置及び携帯電子機器
JP2008314929A Expired - Fee Related JP5552620B2 (ja) 2008-06-16 2008-12-10 デジタルスピーカー駆動装置と集中制御装置とを搭載した自動車
JP2008314905A Expired - Fee Related JP5396588B2 (ja) 2008-06-16 2008-12-10 デジタルスピーカー駆動装置，デジタルスピーカー装置，アクチュエータ，平面ディスプレイ装置及び携帯電子機器
JP2014081167A Expired - Fee Related JP5764691B2 (ja) 2008-06-16 2014-04-10 ヘッドフォン装置及びパーソナルコンピュータ
JP2014211709A Expired - Fee Related JP6087332B2 (ja) 2008-06-16 2014-10-16 パーソナルコンピュータ

Family Applications After (4)

Application Number Title Priority Date Filing Date
JP2008314929A Expired - Fee Related JP5552620B2 (ja) 2008-06-16 2008-12-10 デジタルスピーカー駆動装置と集中制御装置とを搭載した自動車
JP2008314905A Expired - Fee Related JP5396588B2 (ja) 2008-06-16 2008-12-10 デジタルスピーカー駆動装置，デジタルスピーカー装置，アクチュエータ，平面ディスプレイ装置及び携帯電子機器
JP2014081167A Expired - Fee Related JP5764691B2 (ja) 2008-06-16 2014-04-10 ヘッドフォン装置及びパーソナルコンピュータ
JP2014211709A Expired - Fee Related JP6087332B2 (ja) 2008-06-16 2014-10-16 パーソナルコンピュータ

Country Status (6)

Country Link
US (3) US8306244B2 (cg-RX-API-DMAC10.html)
EP (1) EP2187657A4 (cg-RX-API-DMAC10.html)
JP (5) JP5552614B2 (cg-RX-API-DMAC10.html)
KR (1) KR20110030414A (cg-RX-API-DMAC10.html)
CN (3) CN107277707B (cg-RX-API-DMAC10.html)
WO (1) WO2009154067A1 (cg-RX-API-DMAC10.html)

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