ES2108151T3 - Microtelefono de comunicaciones bidireccionales con filtro. - Google Patents

Microtelefono de comunicaciones bidireccionales con filtro.

Info

Publication number
ES2108151T3
ES2108151T3 ES93104560T ES93104560T ES2108151T3 ES 2108151 T3 ES2108151 T3 ES 2108151T3 ES 93104560 T ES93104560 T ES 93104560T ES 93104560 T ES93104560 T ES 93104560T ES 2108151 T3 ES2108151 T3 ES 2108151T3
Authority
ES
Spain
Prior art keywords
filter
way communications
communications microphone
microphone
headphone
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 - Lifetime
Application number
ES93104560T
Other languages
English (en)
Spanish (es)
Inventor
Noboru Yamaguchi
Masao Konomi
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.)
Pan Communications Inc
Original Assignee
Pan Communications 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
Application filed by Pan Communications Inc filed Critical Pan Communications Inc
Application granted granted Critical
Publication of ES2108151T3 publication Critical patent/ES2108151T3/es
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
    • H04R3/00—Circuits for transducers
    • H04R3/02—Circuits for transducers for preventing acoustic reaction, i.e. acoustic oscillatory feedback
    • 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
    • H04R1/1016—Earpieces of the intra-aural type

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Telephone Set Structure (AREA)
  • Headphones And Earphones (AREA)
ES93104560T 1992-03-19 1993-03-19 Microtelefono de comunicaciones bidireccionales con filtro. Expired - Lifetime ES2108151T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP4092457A JPH0817415B2 (ja) 1992-03-19 1992-03-19 イヤーセット型送受話器
CA002094667A CA2094667A1 (en) 1992-03-19 1993-04-22 Two-way communications earset with filter

Publications (1)

Publication Number Publication Date
ES2108151T3 true ES2108151T3 (es) 1997-12-16

Family

ID=25676114

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93104560T Expired - Lifetime ES2108151T3 (es) 1992-03-19 1993-03-19 Microtelefono de comunicaciones bidireccionales con filtro.

Country Status (5)

Country Link
EP (1) EP0564874B1 (ja)
JP (1) JPH0817415B2 (ja)
CA (1) CA2094667A1 (ja)
DE (1) DE69313902T2 (ja)
ES (1) ES2108151T3 (ja)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997023765A1 (en) 1995-12-22 1997-07-03 A/S Brüel & Kjær A system and a method for measuring a continuous signal
US6175633B1 (en) 1997-04-09 2001-01-16 Cavcom, Inc. Radio communications apparatus with attenuating ear pieces for high noise environments
US6885753B2 (en) 2000-01-27 2005-04-26 New Transducers Limited Communication device using bone conduction
GB0024279D0 (en) * 2000-10-04 2000-11-15 New Transducers Ltd Audio apparatus
GB0321617D0 (en) 2003-09-10 2003-10-15 New Transducers Ltd Audio apparatus
EP2285135A1 (en) * 2009-07-07 2011-02-16 Nxp B.V. Microphone-speaker device comprising a low pass filter
JP5646969B2 (ja) * 2010-11-24 2014-12-24 日立アプライアンス株式会社 空気調和機

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5525577Y2 (ja) * 1975-09-16 1980-06-19
GB1530814A (en) * 1977-06-20 1978-11-01 British Aircraft Corp Ltd Hearing protection devices
JPS58188996A (ja) * 1982-04-27 1983-11-04 Katsuo Motoi 外耳道内双方向通話装置
FR2595498B1 (fr) * 1986-03-07 1989-06-02 Centre Nat Rech Scient Procedes et dispositifs pour attenuer les bruits d'origine externe parvenant au tympan et ameliorer l'intelligibilite des communications electro-acoustiques
DE3627002A1 (de) * 1986-08-08 1988-02-18 Philips Patentverwaltung Verfahren und schaltungsanordnung zur akustischen kompensation des umgebungsgeraeusches bei kopfhoererempfang

Also Published As

Publication number Publication date
JPH0817415B2 (ja) 1996-02-21
EP0564874B1 (en) 1997-09-17
DE69313902T2 (de) 1998-01-22
DE69313902D1 (de) 1997-10-23
EP0564874A1 (en) 1993-10-13
CA2094667A1 (en) 1994-10-23
JPH05268310A (ja) 1993-10-15

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