CLOCK REGENERATION FOR OPTICAL COMMUNICATIONS
First Claim
Patent Images
1. A system for regenerating a client clock signal for use in optical communications, the system comprising:
- a clock signal generator configured to generate a client clock signal; and
a clock processor configured to receive the client clock signal and a carrier clock signal, the clock processor having;
a carrier-side quantizer configured to calculate a carrier-side data quantity in response to the carrier clock signal;
a client-side quantizer configured to calculate a client-side data quantity in response to the client clock; and
a frequency command controller configured to generate a frequency command in response to the difference between the carrier-side data quantity and the client-side data quantity;
wherein the clock signal generator is adjusted in response to the frequency command.
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Abstract
A system and method for regenerating a client clock signal for use in optical communications is disclosed. The system and method involves using a carrier clock signal and a client clock signal to calculate quantities of data that are received and transmitted at an edge node and then adjusting a clock source in response to the difference between the calculated quantities of received and transmitted data.
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Citations
16 Claims
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1. A system for regenerating a client clock signal for use in optical communications, the system comprising:
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a clock signal generator configured to generate a client clock signal; and a clock processor configured to receive the client clock signal and a carrier clock signal, the clock processor having; a carrier-side quantizer configured to calculate a carrier-side data quantity in response to the carrier clock signal; a client-side quantizer configured to calculate a client-side data quantity in response to the client clock; and a frequency command controller configured to generate a frequency command in response to the difference between the carrier-side data quantity and the client-side data quantity; wherein the clock signal generator is adjusted in response to the frequency command. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for regenerating a client clock signal for use in optical communications, the method comprising:
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generating a client clock signal; calculating a quantity of data that is received at a carrier interface, wherein the calculation is made in response to a carrier clock signal; calculating a quantity of data that is received at a client interface, wherein the calculation is made in response to the client clock signal; and adjusting the frequency of the client clock signal in response to the difference between the quantity of data that is received at the carrier interface and the quantity of data that is received at the client interface. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification