Multiplication and accumulation circuit based on radix-4 booth code and differential weight
US12112143B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 26, 2020 |
| Grant date | Oct 8, 2024 |
| Priority date | — |
| Expiry date | Oct 26, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2213/79
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides a multiplication and accumulation circuit based on radix-4 booth code and differential weight storage. The circuit includes an input data encoding circuit, a differential weight storage circuit, an integral calculation circuit and a differential ADC circuit. The input data encoding circuit is configured to encode original input data. The differential weight storage circuit is configured to store weight values, and multiply the original input data after being encoded by the weight values stored to obtain multiplication results. The integral calculation circuit is configured to respectively accumulate a positive value and a negative value of each multiplication result. The differential ADC circuit is configured to perform analog-to-digital conversion on a difference between accumulated results of the positive values and the negative values to obtain a digital multiplication and accumulation result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.