Floating point calculator with RAM shift register
US4001566A · kind A · utility
6Cited by
6References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 29, 1973 |
| Grant date | Jan 4, 1977 |
| Priority date | — |
| Expiry date | Oct 29, 1993 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0202
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A calculator utilizing floating point logic by means of registers in the form of random access memories the bit positions of which are sequentially addressable, reversible timing means for addressing each register sequentially in either direction and programming means for causing numbers to be handled in said registers in the form of the exponent and mantissa of said numbers. The preferred embodiment of calculator also has control logic for said registers enabling bits to be displaced in said registers in a direction selected by said timing means for effecting the operations of multiplication and division by ten.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.