Method and apparatus for altering frequency components of a transformed signal, and a recording medium therefor
US5737717A · kind A · utility
6Cited by
22References
50Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 21, 1995 |
| Grant date | Apr 7, 1998 |
| Priority date | — |
| Expiry date | Feb 21, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/665
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A signal transforming method and apparatus which improves the quality of a signal, and a recording medium therefore. This method and apparatus alters the frequency components of an acoustic time signal. By altering the frequency components the characteristics of the acoustic time signal is transformed such that its quality is improved. The alteration is such that the difference in magnitude of attributes of frequency components within a substantially critical band are adjusted based on characteristics of auditory sensing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.