Vocal mix circuit
US5717763A · kind A · utility
17Cited by
2References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 10, 1996 |
| Grant date | Feb 10, 1998 |
| Priority date | — |
| Expiry date | Jul 10, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S1/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A vocal mix circuit shifts the phase of a mixed audio signal using a phase shifter, and achieves a mixed signal emphasizing the voice components thereof, by subtracting a signal which is not shifted from the signal shifted by the phase shifter. Gain through the above steps is controlled by the gain controller. Then, operators process both the initial signals and the signal through the phase shifter and the gain controller. Accordingly, the vocal mix circuit enables a person to hear with high sensitivity, has a simple circuit, and reduces the number of external pins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.