Pipelined adaptive IIR filter

Boots – shoes – and leggings

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

36472401, 36472417, G06F 1710

Patent

active

057453969

ABSTRACT:
A pipelined adaptive infinite impulse response (PAIIR) filter is disclosed including an adaptive section and a non-adaptive section, where the PAIIR filter is responsive to first and second input signals. The PAIIR filter includes a plurality of delays and a first polynomial signal generator. The plurality of delays are adapted to re-time a first polynomial value signal, the second input signal, and an error signal. The first polynomial signal generator is adapted to perform relaxed look-ahead processing on the second input signal in the adaptive section. The first polynomial signal generator is responsive to the re-timed error signal so as to generate and adaptively update a first set of weight signals corresponding to first polynomial weights and so as to generate the first polynomial value signal therefrom.

REFERENCES:
patent: 4038536 (1977-07-01), Feintuch
patent: 4791390 (1988-12-01), Harris et al.
patent: 4811263 (1989-03-01), Hedley et al.
patent: 5031194 (1991-07-01), Crespo et al.
patent: 5115452 (1992-05-01), Cupo
patent: 5119196 (1992-06-01), Ayanoglu et al.
patent: 5187692 (1993-02-01), Haneda et al.
patent: 5206911 (1993-04-01), Eriksson et al.
patent: 5226057 (1993-07-01), Boren
patent: 5282154 (1994-01-01), Knutson et al.
patent: 5293402 (1994-03-01), Crespo et al.
patent: 5318036 (1994-06-01), Arand et al.
patent: 5329472 (1994-07-01), Sugiyama
patent: 5329587 (1994-07-01), Morgan et al.
patent: 5337366 (1994-08-01), Eguchi et al.
patent: 5386243 (1995-01-01), Huang et al.
patent: 5386477 (1995-01-01), Popovich et al.
patent: 5428562 (1995-06-01), Gay
M. Hatamian et al., "An 85 MHz 4th Order Programmable IIR Digital Filter Chip", IEEE Journal of Solid-State Circuits, Feb. 1992, pp. 175-183.
S.-Y. Kung, "On Supercomputing With Systolic/Wavefront Array Processors", Proceedings of the IEEE, vol. 72, Jul. 1984, pp. 867-884.
K.K. Parhi et al., "Pipeline Interleaving and Parallelism in Recursive Digital Filters -Part I: Pipelining Using Scattered Look-Ahead and Decomposition", IEEE Transactions on Acoustics, Speech and Signal Processing, vol. 37, Jul. 1989, pp. 1099-1117.
N.R. Shanbhag et al., "VLSI Implementation of a 100 MHz Pipelined ADPCM Codec Chip", Proceedings of the IEEE VLSI Signal Processing Workshop, Veldhoven, The Netherlands, Oct. 1993, pp. 114-122.
J.J. Shynk, "Adaptive IRR Filtering", IEEE ASSP Magazine, Apr. 1989, pp. 4-21.
B. Widrow et al., "Stationary and Nonstationary Learning Characteristics of the LMS Adaptive Filter", Proceedings of the IEEE, vol. 64, 1976, pp. 1151-1162.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Pipelined adaptive IIR filter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pipelined adaptive IIR filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pipelined adaptive IIR filter will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1539177

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.