发明名称 |
ADAPTER CARD IMPLEMENTING A TIME-SHARED DIGITAL SIGNAL PROCESSOR |
摘要 |
The invention provides an adapter card for use with a computing apparatus executing in a multitasking environment program elements that implement call-related functional units requiring DSP (Digital Signal Processor) resources. In a specific example, the call-related functional units provide voice recognition services, IP (Internet Protocol) telephony and voice message, among others. The adapter card includes a switch that receives voice signals from one or more telephone lines physically connected to the adapter card. A digital signal processor is provided on the adapter card and can receive an audio signal from the switch for processing. When anyone of the call-related functional units needs access to the resources of the DSP, it issues a control signal to the switch that responds by directing the audio signal that is to be processed by the call-related functional unit to the digital signal processor. The results of the manipulations performed by the digital signal processor on the audio signal are then transferred to the call-related functional unit for further processing. The invention also provides a method and apparatus for processing calls implementing the above-functionality, and a digital signal processor featuring a switch capability coupled to a time-shared DSP resource.
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申请公布号 |
CA2273660(A1) |
申请公布日期 |
2000.12.07 |
申请号 |
CA19992273660 |
申请日期 |
1999.06.07 |
申请人 |
NORTEL NETWORKS CORPORATION |
发明人 |
RHODES, STEVEN JAMES;KEILTY, DICK H.;MARTIN, RICHARD;BUCHANAN, CHRIS R.;MACNEILL, KEVIN |
分类号 |
H04M3/42;H04M3/487;H04M3/523;H04M3/533;(IPC1-7):G06F3/16 |
主分类号 |
H04M3/42 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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