发明授权
US06535505B1 Method and apparatus for providing a time-division multiplexing (TDM) interface among a high-speed data stream and multiple processors
有权
用于在高速数据流和多个处理器之间提供时分复用(TDM)接口的方法和装置
- 专利标题: Method and apparatus for providing a time-division multiplexing (TDM) interface among a high-speed data stream and multiple processors
- 专利标题(中): 用于在高速数据流和多个处理器之间提供时分复用(TDM)接口的方法和装置
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申请号: US09164079申请日: 1998-09-30
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公开(公告)号: US06535505B1公开(公告)日: 2003-03-18
- 发明人: Cherng-Daw Hwang , Kenley Wong
- 申请人: Cherng-Daw Hwang , Kenley Wong
- 主分类号: H04J1266
- IPC分类号: H04J1266
摘要:
A Multiservice Access Concentrator (MAC) is provided at which a dynamic association is established and maintained among a number of processors and a number of voice channels of a data stream. The voice channels are multiplexed voice channels received in a Pulse Code Modulation (PCM) data stream. The processors comprise digital signal processors (DSPs) for performing compression and decompression of the plurality of voice channels. A table is generated that tracks the association among the plurality of processors and the plurality of voice channels. At least one signal is generated that synchronizes a transfer of data among each of the processors and the associated voice channels. The generation of at least one signal comprises providing a frame synchronization signal to each of the processors to indicate the start of a first voice channel. Furthermore, a byte synchronization signal is provided to each processor when the associated voice channel is available for transfer. Moreover, a clock gating control signal is provided to each of the processors when the associated voice channel is available for transfer. A number of compressed voice channels are provided to at least one multi-service network using a configurable trunk, wherein the at least one multi-service network comprises Asynchronous Transfer Mode (ATM), Frame Relay, High-level Data Link Control (HDLC), Internet Protocol (IP), and TDM networks.
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