Perceptual power reduction system and method
US10374566B2 · kind B2 · utility
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4References
15Claims
0Family size
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Key dates
| Filing date | Jul 27, 2017 |
| Grant date | Aug 6, 2019 |
| Priority date | — |
| Expiry date | Jul 31, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2460/03
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method of reducing power consumed by an audio playback system includes: receiving a signal from a digital audio interface; comparing a sound pressure level (SPL) response of a first frequency band of the signal to a total SPL response of the signal, the first frequency band including frequencies lower than a selected frequency; and attenuating signal components in the first frequency band of the signal based upon the comparison of the SPL response of the first frequency band of the signal to the total SPL response of the signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.