Telephone instrument and method for altering audible characteristics
US5485514A · kind A · utility
10Cited by
8References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 1994 |
| Grant date | Jan 16, 1996 |
| Priority date | — |
| Expiry date | Mar 31, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S7/30
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A telephone instrument creates spatially simulated sound signals from signals received from a telephone line. The received signals are directed to left and right channels. In each channel, the signals are processed via a direct path, an early reflection path including a finite impulse response filter and a reverberant decay path including all-pass filter. In each channel, the outputs from the three paths are summed with different weights.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.