Update block for an adaptive equalizer filter configuration

Details Update block for an adaptive equalizer filter configuration Update block for an adaptive equalizer filter configuration

1995-12-28

1999-05-25

Moise, Emmanuel L.

Boots, shoes, and leggings

375232, G06F 1710

Patent

active

059074973

ABSTRACT:
An update block for an adaptive RAM-based equalizer filter configuration includes a multiplier, an adder, and a plurality of delay units. The multiplier, adder, and delay units are coupled in an manner so as to have the capability to perform full-rate equalizer filter coefficient adaptation. In accordance with another embodiment of the invention, a method of updating a coefficient signal for an adaptive RAM-based equalizer filter configuration is provided. The method selectively variably delays an error signal sample produced by the adaptive RAM-based equalizer filter configuration and an equalizer filter input signal sample and computes with selectively variably error signal sample and the selectively variably delayed equalizer filter input signal sample. Finally, the coefficient signal is updated by adding the product to the coefficient signal.

REFERENCES:
patent: 4435823 (1984-03-01), Davis et al.
patent: 5243624 (1993-09-01), Paik et al.
patent: 5245561 (1993-09-01), Sugiyama
patent: 5311546 (1994-05-01), Paik et al.
patent: 5363441 (1994-11-01), Feiner et al.
patent: 5388062 (1995-02-01), Knutson
patent: 5416799 (1995-05-01), Currivan et al.
patent: 5502507 (1996-03-01), Kim
patent: 5524023 (1996-06-01), Tsujimoto
patent: 5646957 (1997-07-01), Im et al.
N. Weste et al. "Principles of CMOS VLSI Design" 1994, Addison-Wesley XP002065768.
European Search Report, Dated Jun. 9, 1998.
Long, Guozhu, Fuyun Ling and John G. Proakis, "The LMS Algorithm with Delayed Coefficient Adaptation," IEEE Transactions on Acoustics, Speech, and Signal Processing, vol. 37, No. 9, Sep. 1989, pp. 1397-1405.
Weste, Neil H.E. and Kamran Eshraghian, Principles of CMOS VLSI Design: A Systems Perspective, Chapter 9 CMOS System Design Examples, 9.3 "A TV Echo Canceller," pp. 672-694, AT&T, U.S.A. 1993.
Lee, Edward A. Lee and David G. Messerschmitt, Digital Communication, 9.2 "Adaptive Linear Equalizer," pp. 385-394, Kluwer Academic Publishers, Boston, 1988.
Simon Haykin, Adaptive Filter Theory, Second Edition, "Stochastic Gradient-Based Algorithms," Chapter 9, pp. 299-307, Prentice Hall, Englewood Cliffs, NJ.

Affiliated with

Also associated with

Rating

Update block for an adaptive equalizer filter configuration does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Update block for an adaptive equalizer filter configuration, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Update block for an adaptive equalizer filter configuration will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-405213