Multiprocessor system for digital signal processing
US6327648A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 7, 1997 |
| Grant date | Dec 4, 2001 |
| Priority date | — |
| Expiry date | May 7, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/3879
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A novel multi-DSP system allows a main DSP to operate concurrently with an auxiliary DSP for implementing a filter algorithm. The main DSP and auxiliary DSP have separate program memories but share the same data memory. The auxiliary DSP program memory is mapped to the main DSP program memory to allow the main DSP to download filter process instructions from its program memory into the auxiliary DSP program memory. The auxiliary DSP fetches the instructions from its program memory to execute them. The auxiliary DSP is prevented from access to the shared data its program memory when this memory is occupied by the main DSP. An arbitration mechanism gives the auxiliary DSP access to the data memory only when the main DSP is not using this memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.