Logarithm/inverse-logarithm converter utilizing a truncated Taylor series and method of use thereof
US5604691A · kind A · utility
16Cited by
5References
40Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 1995 |
| Grant date | Feb 18, 1997 |
| Priority date | — |
| Expiry date | Jan 31, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M7/50
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A converter which may be used for implementing either logarithmic or inverse-logarithmic functions is disclosed. The converter includes a memory, two multiplier, and two adders. The memory stores a plurality of coefficient which are based on a second-order Taylor polynomial used to estimate a logarithmic or inverse-logarithmic function over a domain of input values. A method of using the converter is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.