EP0966178A3 - Transducteur électroacoustique digital - Google Patents

Transducteur électroacoustique digital Download PDF

Info

Publication number
EP0966178A3
EP0966178A3 EP99304612A EP99304612A EP0966178A3 EP 0966178 A3 EP0966178 A3 EP 0966178A3 EP 99304612 A EP99304612 A EP 99304612A EP 99304612 A EP99304612 A EP 99304612A EP 0966178 A3 EP0966178 A3 EP 0966178A3
Authority
EP
European Patent Office
Prior art keywords
units
circuit
output
unit
preamplifier
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.)
Granted
Application number
EP99304612A
Other languages
German (de)
English (en)
Other versions
EP0966178B1 (fr
EP0966178A2 (fr
Inventor
Yoshinobu Yasuno
Yasuhiro Riko
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.)
Riko Yasuhiro
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of EP0966178A2 publication Critical patent/EP0966178A2/fr
Publication of EP0966178A3 publication Critical patent/EP0966178A3/fr
Application granted granted Critical
Publication of EP0966178B1 publication Critical patent/EP0966178B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04R19/00—Electrostatic transducers
    • 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
    • H04R5/00—Stereophonic arrangements
    • H04R5/033—Headphones for stereophonic communication

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Telephone Function (AREA)
EP99304612A 1998-06-18 1999-06-14 Transducteur électroacoustique digital Expired - Lifetime EP0966178B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP17186598A JP3553375B2 (ja) 1998-06-18 1998-06-18 防騒音型ディジタル式受話器
JP17186598 1998-06-18

Publications (3)

Publication Number Publication Date
EP0966178A2 EP0966178A2 (fr) 1999-12-22
EP0966178A3 true EP0966178A3 (fr) 2001-03-21
EP0966178B1 EP0966178B1 (fr) 2004-05-26

Family

ID=15931230

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99304612A Expired - Lifetime EP0966178B1 (fr) 1998-06-18 1999-06-14 Transducteur électroacoustique digital

Country Status (4)

Country Link
EP (1) EP0966178B1 (fr)
JP (1) JP3553375B2 (fr)
CN (1) CN1173599C (fr)
DE (1) DE69917531T2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3642460B2 (ja) * 1998-12-07 2005-04-27 松下電器産業株式会社 デジタル式送受話器
RU2226749C2 (ru) * 2001-10-15 2004-04-10 Бувайло Виктор Владимирович Способ формирования сигнала электромеханического преобразования и устройство для его осуществления

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4370523A (en) * 1980-05-28 1983-01-25 Baeder Karl O Process and apparatus for converting sound waves into digital electrical signals
US4922542A (en) * 1987-12-28 1990-05-01 Roman Sapiejewski Headphone comfort
WO1997036454A1 (fr) * 1996-03-27 1997-10-02 Georg Neumann Gmbh Procede et dispositif pour transformer un signal acoustique en signal electrique

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4370523A (en) * 1980-05-28 1983-01-25 Baeder Karl O Process and apparatus for converting sound waves into digital electrical signals
US4922542A (en) * 1987-12-28 1990-05-01 Roman Sapiejewski Headphone comfort
WO1997036454A1 (fr) * 1996-03-27 1997-10-02 Georg Neumann Gmbh Procede et dispositif pour transformer un signal acoustique en signal electrique

Also Published As

Publication number Publication date
CN1241107A (zh) 2000-01-12
JP2000013890A (ja) 2000-01-14
JP3553375B2 (ja) 2004-08-11
EP0966178B1 (fr) 2004-05-26
CN1173599C (zh) 2004-10-27
DE69917531D1 (de) 2004-07-01
DE69917531T2 (de) 2005-08-04
EP0966178A2 (fr) 1999-12-22

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