Fast floating-point to integer conversion
US5764548A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1995 |
| Grant date | Jun 9, 1998 |
| Priority date | — |
| Expiry date | Sep 29, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M7/24
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Input signals in floating-point format are converted into output signals in integer format while handling saturation cases appropriately. Saturation exists when the value of an input signal is outside the output range. Saturation cases are detected by invoking an integer comparison instruction using signals in floating-point format as inputs to tile integer comparison instruction. When implemented in software on processors such as the Intel.RTM. Pentium.TM. processor, using an integer comparison instruction to compare signals in floating-point format provides more efficient signal conversion than conventional schemes that use a floating-point comparison instruction to compare floating-point signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.