Method and apparatus for calculating energy in a-law or &mgr;-law encoded speech signals
US6775685B1 · kind B1 · utility
3Cited by
10References
16Claims
0Family size
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Key dates
| Filing date | Sep 29, 2000 |
| Grant date | Aug 10, 2004 |
| Priority date | — |
| Expiry date | Jan 12, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F7/49
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus and method for generating the square of a non-linear encoded signal having a value and a segment number includes an offset generator, a multiplier and a shifter. The offset generator receives the value of the encoded signal and adds an offset value to it thereby to generate a multiplicand. The multiplicand is squared by the multiplier and the output of the multiplier is conveyed to the shifter. The shifter shifts the output of the multiplier in accordance with the segment number thereby to generate the square of the encoded signal. The offset, multiplying and shifting steps can be performed in a single clock cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.