Device for visually displaying the auditory content of the human voice
US4063035A · kind A · utility
21Cited by
3References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 12, 1976 |
| Grant date | Dec 13, 1977 |
| Priority date | — |
| Expiry date | Nov 12, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L25/15
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A voiced-sound frequency analysis and display system displays two forms of spectral information about the signal: (1) the first and second formants as a point on an X-Y grid of a cathode ray tube, and (2) the full spectrum as a bar graph on an oscilloscope. Two sets of filters with associated circuitry perform the analysis. A scanning (peak hunting) second-formant selector circuit is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.