Tone count audiometric computer
US3970785A · kind A · utility
9Cited by
2References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 13, 1975 |
| Grant date | Jul 20, 1976 |
| Priority date | — |
| Expiry date | May 13, 1995 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/121
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A hearing threshold level measuring apparatus for automatically determining testing hearing level in each ear and processing the test scores for either manual or automatic readout. A predetermined number of tone bursts varied randomly from one to four in each test sequence and automatically decreased in level. The subject is provided with a response panel containing pushbuttons labelled one through four. The subject's bearing threshold is then determined from his pushbutton responses to his correct burst tone counts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.