Mechanism for utilizing voice path DMA in packetized voice communication system to decrease latency and processor overhead
US7061916B2 · kind B2 · utility
10Cited by
8References
12Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 12, 2002 |
| Grant date | Jun 13, 2006 |
| Priority date | — |
| Expiry date | Dec 23, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/5681
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A voice path direct memory access (DMA)-based packet generation mechanism writes digitally encoded voice samples directly into prescribed subportions of a preallocated portion of random access memory, to avoid interrupting a main processor for the purpose. A pointer to a respective buffer space subportion is presented to a protocol stack, so that one or more overhead bytes for the stored voice samples can be generated and written into adjacent address space of the preallocated portion of random access memory. The contents of the preallocated memory space are then serialized out for transmission to a destination receiver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.