| 摘要 |
An improved serial data transmission system employs a skewing network to selectively skew each of the plurality of input signals by a successively increasing integral multiple of the average period of the multiplexed output signal. The skewed signals are merged in a combinatorial merging network having substantially identical delay times in its data path, to provide the multiplexed signal. In an exemplary embodiment, the invention provides a time-division multiplexer in which the incoming signals are precoded prior to being skewed by the skewing network, so that the form of the multiplexed output signal is the conventional sequentially interleaved input signals as provided by prior art multiplexers, and the merging network is a binary tree EXCLUSIVE OR gate array. In another exemplary embodiment, the invention provides a multiplexer with a skewing network and a merging network to generate a serial signal, and a corresponding demultiplexer which deskews the serial signal and postcodes the deskewed data to recover the original input signals. The invention eliminates the need for latches capable of operating at the data rate of the output signal, and does not require the generation and distribution of clock signals of higher frequency than the incoming data.
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