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US 11,777,702 B2Granted
Closed loop lane synchronization for optical modulation
AssigneeMACOM Technology Solutions Holdings, Inc.
InventorsNaga Rajesh Doppalapudi, Echere Iroaga
Life of this patent
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Abstract
A system for transmitting signals via serial links includes a plurality of lanes for combining data onto a transmission media, a skew detector configured to detect skew among two of the plurality of lanes, and a variable delay circuit controlled by the skew detector, configured to delay the start of a clock signal to circuitry of one of the plurality of lanes.
Claims19
A system for transmitting signals via serial links, comprising:
- a plurality of lanes for combining data onto a transmission medium, comprising:
- a first lane comprising a first modulation driver signal and a second modulation driver signal;
- a second lane comprising a first modulation driver signal and a second modulation driver signal;
- a skew detector electrically coupled to a first output of a first modulation driver of said first lane of said plurality of lanes and electrically coupled to a second output of a second modulation driver of said second lane of said plurality of lanes configured to detect skew among said first lane and said second lane;
- and
- a variable delay circuit controlled by said skew detector, configured to delay the start of a clock signal to circuitry of one of said plurality of lanes.
3 more elements
A system for transmitting signals via serial links, comprising:
- a plurality of lanes for combining data onto a transmission medium, comprising:
- a first lane comprising a first modulation driver signal and a second modulation driver signal;
- a second lane comprising a first modulation driver signal and a second modulation driver signal;
- and
- a skew adjustment circuit configured to adjust skew between said first lane and said second lane of said plurality of lanes in a closed loop manner based on detecting skew between outputs of modulation drivers corresponding to said first modulation driver signal of said first lane and said second modulation driver signal of said second lane,
- wherein the skew adjustment circuit comprises a variable delay circuit that delays a start of a clock signal to circuitry of a lane.
3 more elements
A system for transmitting signals via optical serial links, comprising:
- a plurality of lanes for combining independent data onto an optical transmission waveguide;
- and
- a skew adjustment component for each of the plurality of lanes, configured to adjust skew of a respective lane responsive to an output of a skew detector, wherein the skew adjustment component comprises a variable delay circuit controlled by said skew detector, configured to delay a start of a clock signal to circuitry of one of said plurality of lanes,
- wherein the skew detector is configured to detect skew among two adjacent lanes, and
- wherein said skew detector is configured to sense outputs of modulation drivers corresponding to said two adjacent lanes.
2 more elements
Dependencies are inferred from the claim text.