Apparatus and method for performing division with an extended range of variables
US4607343A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 1983 |
| Grant date | Aug 19, 1986 |
| Priority date | — |
| Expiry date | Nov 25, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2207/5354
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus are disclosed which, for obtaining the quotient of division operations in a data processing apparatus, generate as an auxiliary value the inverse square root g of the divisor w. The auxiliary value g is then multiplied by the divident v, and the intermediate result again multiplied by the auxiliary value g. An improvement in operation of the data processing apparatus is obtained despite introduction of the auxiliary value because the range covered by the auxiliary value is significantly smaller than that of the direct inverse of the divisor. A preferred application is the area of signal processing in communications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.