Resources Contact Us Home
Circuit for improving picture quality by interpolation in a video camera

Image Number 5 for United States Patent #5049998.

A circuit and method for improving picture quality by interpolation in a digital video camera or in an image processing system. A preferred embodiment performs interpolation of a video signal from a CCD image pickup device. The circuit includes a first pitch (pixel) delay circuit 20, a 2-decimation circuit, a second pitch delay circuit 30 and a third pitch delay circuit 40. The circuit further includes a first adder and multiplier 50 connected to the outputs of the second pitch delay circuit and the 2-decimation circuit, a second adder and multiplier 60 connected to an output of the third pitch delay circuit and an output of the 2-decimation circuit and an adder 70 for combining the output of circuits 10, 50 and 60 to a clock signal. The adder 70 also samples the combined signal in response to the clock signal and holds the sampled signal for output of a picture signal of improve quality.

  Recently Added Patents
Illumination apparatus for microlithography projection system including polarization-modulating optical element
Method and apparatus for prioritizing data transfer
Methods for diagnosing irritable bowel syndrome
Touch sensing technology
Cryptography on a simplified elliptical curve
Pear-shaped convertible reading glasses
Communication system and time synchronization method
  Randomly Featured Patents
Cooling equipment for an integrated circuit chip
Coupling structure of driving force transmitting members
Integrated flat cable connector
Rotary piston machine with wear surface on rotary valve member
Test cap unit for sealed fitting
Vehicle component
Triazole derivative or slat thereof, preparation process thereof and pharmaceutical containing said compound as an effective ingredient
Computer-assisted method and apparatus for displaying x-ray images
Strain sensing system including a magnetostrictive material having a piezomagnetic property selected for maximizing electrical impedance to current applied to a predetermined skin depth
Cover for a mirror mount