Sparse superlattice signal processor

Details Sparse superlattice signal processor Sparse superlattice signal processor

1992-05-06

1992-10-13

Kemeny, Emanuel S.

Electrical audio signal processing systems and devices

Binaural and stereophonic

Hearing aid

381 41, 381 36, G10L 500

Patent

active

051557711

ABSTRACT:
A parametric signal processing structure, which receives autocorrelation coefficients, produces, in an additive sparse superlattice embodiment, quantities .lambda..sub.i.sup.+, defined as (1-k.sub.m) (k.sub.m-1 +1), and in a subtractive sparse superlattice embodiment, quantities .lambda..sub.m.sup.-, defined as (1+k.sub.m) (1-k.sub.m-1), where the quantities k.sub.i correspond to the lattice predictor coefficients, or PARCORS of the signal under study. The additive and subtractive sparse superlattice processing structures are strictly optimal in terms of hardware and complexity, yet lend themselves to implementation in a fully parallel, fully sequential, or parallel partitioned manner.

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