Method and apparatus for improved jitter tolerance
First Claim
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1. A method for improving the jitter tolerance of a receiver in an optical transmission system, comprising:
- receiving an input optical signal;
sampling said input signal more than once within its bit slot; and
determining, using logic circuitry, from a combination of at least a subset of said more than one samples, a resulting logic state for an output signal, wherein said output signal exhibits an improved bit error rate (BER).
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Abstract
We demonstrate a novel type of data receiver, which has superior performance compared to a standard receiver when an input signal is distorted by timing jitter. A method and apparatus for improved timing jitter tolerance includes sampling an input signal more than once within a bit slot of the input signal and determining, using logic circuitry, from a combination of at least a subset of the samples, a resulting logic state for an output signal.
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Citations
21 Claims
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1. A method for improving the jitter tolerance of a receiver in an optical transmission system, comprising:
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receiving an input optical signal;
sampling said input signal more than once within its bit slot; and
determining, using logic circuitry, from a combination of at least a subset of said more than one samples, a resulting logic state for an output signal, wherein said output signal exhibits an improved bit error rate (BER). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A receiver in an optical transmission system exhibiting an improved jitter tolerance, comprising:
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a sampling circuit, for sampling an input signal more than once within a bit slot of said input signal; and
logic circuitry, for determining a resulting logic state of an output signal from a combination of at least a subset of said more than one samples, wherein said output signal exhibits an improved bit error rate (BER). - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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Specification