FR2383573B1 - - Google Patents

Info

Publication number
FR2383573B1
FR2383573B1 FR7805973A FR7805973A FR2383573B1 FR 2383573 B1 FR2383573 B1 FR 2383573B1 FR 7805973 A FR7805973 A FR 7805973A FR 7805973 A FR7805973 A FR 7805973A FR 2383573 B1 FR2383573 B1 FR 2383573B1
Authority
FR
France
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
Application number
FR7805973A
Other versions
FR2383573A1 (fr
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.)
Telecom Italia SpA
Original Assignee
CSELT Centro Studi e Laboratori Telecomunicazioni SpA
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 CSELT Centro Studi e Laboratori Telecomunicazioni SpA filed Critical CSELT Centro Studi e Laboratori Telecomunicazioni SpA
Publication of FR2383573A1 publication Critical patent/FR2383573A1/fr
Application granted granted Critical
Publication of FR2383573B1 publication Critical patent/FR2383573B1/fr
Granted 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
    • H04R29/00—Monitoring arrangements; Testing arrangements
    • H04R29/004—Monitoring arrangements; Testing arrangements for microphones
    • 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 
    • H04R1/222—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only  for microphones

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • General Health & Medical Sciences (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Circuit For Audible Band Transducer (AREA)
FR7805973A 1977-03-09 1978-03-02 Oreille artificielle pour mesures telephonometriques Granted FR2383573A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT67507/77A IT1116715B (it) 1977-03-09 1977-03-09 Orecchio artificiale per misure telefonometriche

Publications (2)

Publication Number Publication Date
FR2383573A1 FR2383573A1 (fr) 1978-10-06
FR2383573B1 true FR2383573B1 (fr) 1982-04-16

Family

ID=11302996

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7805973A Granted FR2383573A1 (fr) 1977-03-09 1978-03-02 Oreille artificielle pour mesures telephonometriques

Country Status (9)

Country Link
US (1) US4152555A (fr)
JP (1) JPS58610B2 (fr)
CA (1) CA1100621A (fr)
DE (1) DE2809634C3 (fr)
DK (1) DK100978A (fr)
FR (1) FR2383573A1 (fr)
GB (1) GB1565927A (fr)
IT (1) IT1116715B (fr)
SE (1) SE416373B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2504299B1 (fr) * 1981-04-15 1985-09-20 Telephonie Ind Commerciale Procede et dispositif de reglage d'une capsule de transducteur electromagnetique
US5517113A (en) * 1995-01-06 1996-05-14 Meyers; Sharon L. Five coil measuring system for measuring magnetic field strength emanating from a telephone handset
NO328582B1 (no) * 2006-12-29 2010-03-22 Tandberg Telecom As Mikrofon for lydkildesporing
GB2456846B (en) * 2008-07-31 2013-03-13 Wolfson Microelectronics Plc Ear simulator
US11640816B1 (en) * 2022-02-23 2023-05-02 Acoustic Metamaterials LLC Metamaterial acoustic impedance matching device for headphone-type devices

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3744294A (en) * 1971-10-14 1973-07-10 Nasa Acoustical transducer calibrating system and apparatus

Also Published As

Publication number Publication date
GB1565927A (en) 1980-04-23
SE416373B (sv) 1980-12-15
FR2383573A1 (fr) 1978-10-06
US4152555A (en) 1979-05-01
DE2809634A1 (de) 1978-09-14
IT1116715B (it) 1986-02-10
DE2809634B2 (de) 1979-11-22
CA1100621A (fr) 1981-05-05
JPS58610B2 (ja) 1983-01-07
DK100978A (da) 1978-09-10
DE2809634C3 (de) 1980-07-31
JPS53110879A (en) 1978-09-27
SE7802442L (sv) 1978-09-10

Similar Documents

Publication Publication Date Title
DE2833273C3 (fr)
CH646831GA3 (fr)
FR2383573B1 (fr)
AU3353778A (fr)
FR2378128B1 (fr)
DK140972C (fr)
AR210643A1 (fr)
DE2723476C2 (fr)
AU495917B2 (fr)
AU71461S (fr)
BG24331A1 (fr)
BE870787A (fr)
BG25837A1 (fr)
BG25847A1 (fr)
BG25827A2 (fr)
BG23462A1 (fr)
BG23438A1 (fr)
BG25848A1 (fr)
BG25826A1 (fr)
BE873002A (fr)
BE872973A (fr)
BG25840A1 (fr)
BG25839A1 (fr)
BG25850A1 (fr)
BG25851A1 (fr)

Legal Events

Date Code Title Description
ST Notification of lapse