Integrated binary-BCD look-ahead adder
US4118786A · kind A · utility
7Cited by
5References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 10, 1977 |
| Grant date | Oct 3, 1978 |
| Priority date | — |
| Expiry date | Jan 10, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2207/4921
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An improved system for adding two numbers together. The numbers may be expressed either in binary form or in binary coded decimal form (wherein each decimal digit is represented by its equivalent four binary bits). By taking advantage of "don't care" decimal input conditions, a minimal implementation of a carry look-ahead adder which can operate upon both types of numbers is obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.