The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 21, 2006
Filed:
Apr. 30, 2001
Leo Rademacher, Holzkirchen, DE;
Leo Rademacher, Holzkirchen, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
An equalizer apparatus comprises a first filter () having a first respective plurality of filter coefficients, a channel model filter () having a plurality of model filter coefficients, and an adaptive algorithm unit (). The adaptive algorithm unit () is arranged to adapt at least a first predetermined number of the first respective plurality of filter coefficients and at least a second predetermined number of the plurality of model filter coefficients in response to an error signal (e) corresponding to a difference in filter output signals from the first filter and the channel model filters (). The adaptive algorithm unit () operates in accordance with a respective state channel estimation technique. The respective state channel estimation technique is adapted so as to reduce a number of states allocatable to at least one of the plurality of state-defining taps, thereby reducing an overall number of states definable associated with the plurality of state-defining taps. The channel model filter () is adapted a number of times corresponding to the reduced overall number of states.