Resources Contact Us Home
Waveform equalizer

Image Number 9 for United States Patent #6061395.

A waveform equalizer prevents the delay of coefficient convergence due to the characteristics of a reproduced signal or the coefficient divergence due to an increase in determined errors. The waveform equalizer constituted by a transversal filter suppresses inter-symbol interferences of a transmitted digital information signal by multiplying the digital information signal and delayed signals thereof by tab coefficients and adding the multiplication results. The waveform equalizer comprises a virtual determination circuit for virtually determining the most plausible digital information from the output of the transversal filter, an error calculation circuit for providing an amplitude error based on the virtual determination result, a retaining and selecting circuit for retaining and selecting the digital information signal and the delayed output thereof, and an updating circuit for multiplying the output from the error calculation circuit by the outputs from the retaining and selecting circuit and to thereby update tab coefficients, wherein the virtual determination circuit virtually determines the value of a most plausible digital information signal by detecting a peak and utilizing the correlationship between signal components of the digital information signal.

  Recently Added Patents
Progressive resistance exercise device
Antibody compositions, methods for treating neoplastic disease and methods for regulating fertility
Skeletal adjustment device
Controlled release complex composition comprising angiotensin-II-receptor blockers and HMG-CoA reductase inhibitors
Spring mounting device for nuclear fuel rod
Method and device for controlling the sterilization of products in an autoclave
Active memory expansion and RDBMS meta data and tooling
  Randomly Featured Patents
Method for charging battery of a hybrid vehicle and a hybrid vehicle using the same
Emergency aerosol lubrication device, particularly for airborne engines
Energy absorbing compression spring body and method of making the same
Adjustable hole cutter housing
Circular saw guide
Transport carrier conveyor
Baby stroller
Low pressure non-barrier type, valved dispensing can
Integrated endoscope and accessory treatment device
Hybrid stochastic gradient for convergence of adaptive filter