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US 12,316,481 B2Granted
Edge based partial response equalization
AssigneeRambus Inc.
InventorsBrian S. Leibowitz, Hae-Chang Lee, Jihong Ren, Ruwan Ratnayake
Life of this patent
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Abstract
An integrated circuit (IC) chip includes transfer circuitry to transfer signals between the IC chip and a second IC chip. The transfer circuitry includes equalization circuitry having at least one tap to equalize the signals. The equalization circuitry includes a tap weight adapter circuit to generate a respective tap weight for each of the at least one tap based on edge information of previously transferred signals.
Claims20
An integrated circuit (IC) chip, comprising:
- transfer circuitry to transfer signals between the IC chip and a second IC chip, the transfer circuitry including
- equalization circuitry having at least one tap to equalize the signals, the equalization circuitry including a tap weight adapter circuit to generate a respective tap weight for each of the at least one tap based on edge information of previously transferred signals.
An integrated circuit (IC) chip, comprising:
- circuitry to interface with a second IC chip via multiple links, the circuitry including multiple transfer circuits, each of the multiple transfer circuits to transfer signals via a corresponding link and comprising
- an equalizer having at least one tap to equalize the signals in accordance with at least one equalizer coefficient corresponding to the at least one tap;
- and
- a tap weight adapter circuit to generate the at least one equalizer coefficient from edge-based sampling information associated with prior transferred signals.
1 more element
A method of operation in an integrated circuit (IC) chip, the method comprising:
- transferring signals between the IC chip and a second IC chip, the transferring including
- applying data level equalization to the signals with at least one tap of an equalizer, and
- adaptively generating a respective tap weight for each of the at least one tap based on edge information of previously transferred signals.
Dependencies are inferred from the claim text.