Method and apparatus for timing recovery based on dispersion characterization and components therefor

The present invention provides a method for generating a timing offset signal applied to a sampling device for recovering a symbol stream from a broadcast signal by characterizing the dispersion of received signal. Preferably, the method includes steps for generating a derivative signal approximating the derivative of the symbol stream, producing a constant representative of an expected symbol stream, and multiplying the derivative signal, the constant, and a signal one of corresponding to and approximating the symbol stream to thereby generate the timing offset signal. A dispersion characterizing receiver and a digital signal processor employed therein are also described. Inventor s: Balakrishnan; Jaiganesh (Ithaca, NY), Sethares; William A (Cotuit, MA), Chung; Wonzoo (Ithaca, NY), Martin; Richard (Ithaca, NY), Johnson, Jr.; C. Richard (Newfield, NY) Assignee : Koninkijke Philips Electronics N.V. (Eindhoven, NL) Appl. No.: 09/947,780 Filed: September 7, 2001 Current U.S. Class: 375/355 ; 375/346 Current International Class: H04L 7/00 (20060101) Field of Search: 375/349,343,229,355,234,346 References Cited [Referenced By] U.S. Patent Documents 5809009 September 1998 Matsuoka et al.