Method for producing more than two electric time signals from one first and one second electric time signal
US8064607B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 27, 2007 |
| Grant date | Nov 22, 2011 |
| Priority date | — |
| Expiry date | Sep 21, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R5/04
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of producing more than two different electric time sound signals (C(t), GF(t), DF(t), GA(t), DA(t)) from two initial electric time signals (GI(t), DI(t)). The method includes in the frequency domain, producing a central electric frequency sound signal (C(ν)) from the in-phase frequency components of the initial signals; and producing two front signals (GF(t), DF(t)) by subtracting the central signal (C(t)) from the initial signals (GI(t), DI(t)) In addition, two rear signals (GA(t), DA(t)) can be produced from the out-of-phase frequency components of the initial signals. In this way, the method can be used to transform a stereophonic signal into a type 5.1 signal having five different sound signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.