Kebing Yang

US Patent:

54537991, Sep 26, 1995

Filed:

Nov 5, 1993

Appl. No.:

8/148920

Inventors:

Kebing Yang - Gaithersburg MD
Tahsin L. Lin - Ellicott City MD
Ashok K. Rao - Germantown MD

Assignee:

Comsat Corporation - Bethesda MD

International Classification:

H04N 734

US Classification:

348699

Abstract:

A video signal processor includes a motion vector estimation system having a first operating mode for performing frame-structure processing and a second operating mode for field-structure processing. The system includes N motion estimator units, each of the units receiving two respective time separated data blocks, wherein N units are operating during the first operating mode, wherein M of the N units are operating during the second operating mode and wherein (N-M) units provide motion estimating processing outside of an area of an image represented by the data blocks. According to one aspect of the present invention, N is an integer greater than 2 while M is an integer less than N.