发明授权
- 专利标题： Universal network interface module
- 专利标题（中）： 通用网络接口模块
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申请号： US09036925申请日： 1998-03-09
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公开(公告)号： US06169767A公开(公告)日： 2001-01-02
- 发明人: Christopher M. Strolle , Steven T. Jaffe , William E. Meyer
- 申请人： Christopher M. Strolle , Steven T. Jaffe , William E. Meyer
- 主分类号： H04L2712
- IPC分类号： H04L2712
摘要：
A variable rate modulator for selectively encoding a variable rate data stream according to one of a plurality of modulation formats. A timing and control circuit locks the variable rate data to a master clock, an encoder selectively encodes the data according to one of a plurality of modulation formats, and a polyphase filter performs pulse shaping and interpolation functions using only shift and add functions to produce a DAC-ready output signal.