Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Apparatus for separating a digital composite video signal into components










Image Number 4 for United States Patent #5633689.

A digital filter (20,30) separates an M-bit (12) chrominance component (C12) from an N-bit (8) digital composite video signal (CV) supplied thereto, M (12) being greater than N (8) due to arithmetic operations (24,44,46,50) required for the separation. The separated M bit chrominance component is reduced to N-bits and subtracted from the composite video signal to provide a separated luminance component. For bit reduction, the separated chrominance component (C12) is subjected to symmetrical rounding (100A or 100B and 104) and limiting (104). Advantageously, symmetrical rounding of the chrominance component provides reduces a tendency for the luminance component to exhibit contouring when displayed.








 
 
  Recently Added Patents
Process for producing polyphenylene ether composition
Patterned birefringent product
Bottle
Barrier layers comprising Ni-inclusive ternary alloys, coated articles including barrier layers, and methods of making the same
TV wall mount
Method for producing purified influenza virus antigen
Method of controlling mechanical mechanisms of optical storage apparatus for peak power/current reduction, and related optical storage apparatus and machine-readable medium
  Randomly Featured Patents
Hat with storage pocket
Polyolefin resin foamed laminate sheet and double-side vacuum forming of the same
Method of welding plastics sheets together and a joint used therein
2-Decarboxy-2-tetrazolyl-6-keto-PGE.sub.1 compounds
Low dusting powdery alginate impression material for dental use
Intervertebral endoprosthesis
Mixing paddle
Light emitter for a display
Switched voltage converter
System and method for deriving data