Multiply/divide circuit for encoder PCM samples
US4716538A · kind A · utility
1Cited by
6References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 31, 1984 |
| Grant date | Dec 29, 1987 |
| Priority date | — |
| Expiry date | Dec 31, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2207/5356
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A circuit multiplies or divides pulse code modulation (PCM) samples in D2 format. An exponent adder/subtractor provides the sum/difference of the exponents of the two numbers. A mantissa multiplier/divider circuit determines the product/quotient of the two mantissas and a sign generator provides a sign value for the resultant product/quotient of the two numbers. A normalizer circuit ensures that the product/quotient mantissa has a predetermined range of values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.