Calculating unit for serial multiplication including a shift register and change-over switching controlling the transmission of the multiplicand bits to form the product
US3959639A · kind A · utility
8Cited by
4References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 12, 1974 |
| Grant date | May 25, 1976 |
| Priority date | — |
| Expiry date | Sep 12, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F7/5277
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In the case of a calculating unit for serial multiplication of a binary multiplicand with a binary multiplier, the multiplicand is inserted into a shift register in serial form. The development of the product is achieved by suitably providing change-over switches at positions of the shift register conforming to binary ones of the multiplier. The product is filled with the sign digit to the required number of digits by the change-over switches which then connect the output with a sign register.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.