Skew-resistant multi-wire channel
AssigneeKandou Labs, S.A.
InventorsAmin Shokrollahi, Margaret Wang Johnston
Life of this patent
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Abstract
Methods and systems described include a first dielectric material having a plurality of embedded conductors of a multi-wire channel, the plurality of embedded conductors comprising at least a first, second and third conductor, wherein a first distance between the first and second conductors is less than a second distance between the first and third conductors, wherein the first dielectric material has a first dielectric constant ∈1 and a second dielectric material embedded in the first dielectric material, the second dielectric material embedded in between the first and third conductors, the second dielectric material having a second dielectric constant ∈2, wherein ∈2>∈1.
Claims20
An apparatus comprising:
- a first dielectric material having a plurality of embedded conductors of a multi-wire channel, the plurality of embedded conductors comprising at least a first, second and third conductor, the plurality of embedded conductors for transmitting signals representing symbols of a multi-level vector signaling codeword, wherein a first distance between the first and second conductors is less than a second distance between the first and third conductors, wherein the first dielectric material has a first dielectric constant ∈1;
- and
- a second dielectric material embedded in the first dielectric material, the second dielectric material embedded in between the first and third conductors, the second dielectric material having a second dielectric constant ∈2, wherein ∈2>∈1.
A method comprising:
- obtaining a set of information signals and responsively generating symbols of a multi-level vector signaling codeword, the multi-level vector signaling codeword representing a sum of a plurality of orthogonal sub-channel vectors, each sub-channel vector having an associated weight determined by a corresponding information signal;
- and
- transmitting the symbols of the codeword over a multi-wire skew-balanced channel, the multi-wire skew-balanced channel having (i) a plurality of conductors, each conductor for carrying a respective symbol of the multi-level vector signaling codeword and (ii) at least first and second dielectric materials interposed between the plurality conductors to offset coupling mismatches associated with geometric mismatches between the plurality of conductors.
Dependencies are inferred from the claim text.