Patent ID: 7450675

Claim:
A multi-channel receiver, comprising: a plurality of input ports, each of the input ports receiving an input signal; a plurality of digital edge tuning circuits, each of the digital edge tuning circuits coupled to a corresponding one of the input ports for receiving the input signal, each of the digital edge tuning circuits comprising: a delay-tuning circuit, coupled to the input port, for receiving the input signal, the input signal being delayed to generate a fine-tuned signal; a delay set, comprising a plurality of delays connected serially one by one, an input of the delay set coupled to the delay-tuning circuit for receiving the fine-tuned signal; a plurality of sample/hold circuits, each of the sample/hold circuits coupled to a corresponding output of one of the delays and the delay-tuning circuit for sampling and holding the corresponding output; a dynamic edge tuning circuit, coupled to the sample/hold circuits, for controlling a common delay time delayed by the delay-tuning circuit according to which one of the sample/hold circuits samples a data edge of the input signal; and an output terminal, coupled to one of the delays, for outputting the corresponding output of the coupled delay; and a channel aligning circuit, coupled to the digital edge tuning circuits for receiving outputs from each of the digital edge tuning circuits.