Method and Apparatus for Automatic Optimal Sampling Phase Detection
AssigneeConexant Systems, Inc.
InventorCostantino Pala
Life of this patent
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Abstract
A system for determining an optimal sampling phase is provided. The system includes a plurality of analog to digital converters, each receiving an analog signal and a clock phase signal and generating an output. A clock generator receives a reference clock and generates a plurality of clock phase signals. A sampling phase system receives the plurality of outputs of the analog to digital converters and generates an optimal sampling phase.
Claims22
A system for determining an optimal sampling phase comprising:
- a plurality of analog to digital converters, each receiving an analog signal and a clock phase signal and generating an output;
- a clock generator receiving a reference clock and generating a plurality of clock phase signals;
- and
- a sampling phase system receiving the plurality of outputs of the analog to digital converters and generating an optimal sampling phase.
A method for determining an optimal sampling phase comprising:
- receiving a signal;
- generating a plurality of samples of the signal;
- determining a maximum leading edge sample difference;
- and
- selecting a sample phase associated with the maximum leading edge sample difference as the optimal sampling phase.
A system for determining an optimal sampling phase comprising:
- means for generating a plurality of samples from an analog signal during one reference clock cycle;
- means for generating two or more sums of sample differences for a plurality of reference clock cycles;
- and
- means for selecting the optimal sampling phase based on the two or more sums of sample differences.
A sampling phase system comprising:
- a leading edge sample system generating two or more leading edge sampling phase values;
- a trailing edge sample system generating two or more trailing edge sampling phase values;
- and
- an optimal sample phase system selecting an optimal sampling phase based on the leading edge sampling phase values and the trailing edge sampling phase values.
Dependencies are inferred from the claim text.