GB1233578A - - Google Patents

Info

Publication number
GB1233578A
GB1233578A GB1233578DA GB1233578A GB 1233578 A GB1233578 A GB 1233578A GB 1233578D A GB1233578D A GB 1233578DA GB 1233578 A GB1233578 A GB 1233578A
Authority
GB
United Kingdom
Prior art keywords
white noise
pass filter
power amplifier
unfiltered
switch
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
Application number
Other languages
English (en)
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 filed Critical
Publication of GB1233578A publication Critical patent/GB1233578A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/12—Audiometering
    • A61B5/121—Audiometering evaluating hearing capacity

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Medical Informatics (AREA)
  • Acoustics & Sound (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Otolaryngology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Multimedia (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
GB1233578D 1967-09-08 1968-09-09 Expired GB1233578A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR120432 1967-09-08

Publications (1)

Publication Number Publication Date
GB1233578A true GB1233578A (enrdf_load_stackoverflow) 1971-05-26

Family

ID=8638014

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1233578D Expired GB1233578A (enrdf_load_stackoverflow) 1967-09-08 1968-09-09

Country Status (3)

Country Link
DE (1) DE1791076C3 (enrdf_load_stackoverflow)
FR (1) FR1602891A (enrdf_load_stackoverflow)
GB (1) GB1233578A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005096940A1 (en) * 2004-04-08 2005-10-20 Philip Stuart Esnouf A hearing testing device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2719796B2 (de) * 1977-05-03 1979-03-08 Siemens Ag, 1000 Berlin Und 8000 Muenchen Audiometer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005096940A1 (en) * 2004-04-08 2005-10-20 Philip Stuart Esnouf A hearing testing device
EP1791468A4 (en) * 2004-04-08 2008-01-02 Philip Stuart Esnouf APPARATUS FOR MONITORING HEARING ACUTE

Also Published As

Publication number Publication date
FR1602891A (enrdf_load_stackoverflow) 1971-02-08
DE1791076A1 (de) 1971-10-21
DE1791076C3 (de) 1981-09-03
DE1791076B2 (de) 1979-04-05

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee