Resources Contact Us Home
Method for mixing two color television signals

Image Number 4 for United States Patent #4496966.

The invention concerns a method and apparatus for mixing a foreground signal and a background signal under the control of a switching signal which is derived as a function of the color of the foreground signal. In response to the switching signal selected parts of the foreground signal are desaturated while maintaining their luminance component substantially unchanged; non-corresponding parts of the background signal are suppressed. Both signals so treated are additively superimposed. This leads to a better representation of fine details in the contours of a foreground object of interest.

  Recently Added Patents
Processing financial documents
Cantilevered probe detector with piezoelectric element
Battery grid
Cryptography on a simplified elliptical curve
Tag-based apparatus and methods for neural networks
Polarized film apparatus with bands of alternating orientation
  Randomly Featured Patents
Intercalates and exfoliates formed with long chain (C6+) or aromatic matrix polymer-compatible monomeric, oligomeric or polymeric intercalant compounds, and composite materials containing same
Diastereomeric salts of malic acid and 2-aminobutanol, and process for the resolution of rademis maic acid
Process for the extraction of crude oil
Fuel processing system and its shutdown procedure
Remote reverse control for pick-up rotor
Selective high frequency spinal cord modulation for inhibiting pain with reduced side effects, and associated systems and methods
Computer patch management in "road warrior" contexts
Vegetation barrier for fence
Low-latency memory indexing method and structure
Cartridge with locking knife for a curved cutter stapler