Resources Contact Us Home
Apparatus for separating a digital composite video signal into components

Image Number 2 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
Predicting popularity of electronic publications
Adaptive input interface
Receiver and transmitter receiver system
Method and system for implementing power detection
High-order harmonic device of cavity filter
Maesa japonica extracts and methods of use
Client network device and method for adjusting parameters of client traffic windows based on discovery of other network devices
  Randomly Featured Patents
Method of measuring artifact taper
HST (hydrostatic transmission) housing axle driving apparatus
Bearing assembly for a vehicle wheel driven by a rotary constant velocity universal joint
Combined portable pet stair and carrying bag
Anti-slip floor unit
Electrical connector with cover configured for heat dissipation
Siloxane unsaturated hydrocarbon based thermosetting polymers
Armor coating for a metal engine component, and method of producing the same
Gutter insert device and method
Enzyme mediated coupling reactions