BCD arithmetic using binary arithmetic and logical operations
US4799181A · kind A · utility
21Cited by
6References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1986 |
| Grant date | Jan 17, 1989 |
| Priority date | — |
| Expiry date | Sep 30, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F7/491
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A binary arithmetic unit performs arithmetic operations on binary coded decimal (BCD) operands by converting the BCD digits to hexadecimal excess 3 digits, generating hexadecimal excess 6 partial product digits and modifying selected excess 6 partial product digits to generate a BCD result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.