Resources Contact Us Home
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
Requirements model comparative analysis method for effort estimation in customizing a network monitoring and control system
System, method and program recording medium for supply capacity estimation
Method for drug screening and characterization by calcium flux
Method and system for accomplishing user equipment purge
Vanilloid receptor ligands and use thereof for the production of pharmaceutical preparations
Image forming apparatus
Comparison of visual information
  Randomly Featured Patents
Incremental AST maintenance using work areas
Thermostatically controlled solar heating and cooling system
Ratchet wrench with one-hand control and neutral capability
Control device for vehicular transmission mechanism
Garbage can cleaning system
Sweetening of hydrocarbon distillates utilizing a tetra-alkyl guanidine with phthalocyanine catalyst
Hinge for a welding helmet window
Ball-type water sprinkler
Latch for securing an artificial sphincter
Method and appartus for acetabular reconstruction