Television – Monitoring – testing – or measuring – Monitor
Reexamination Certificate
2006-12-26
2006-12-26
Kostak, Victor R. (Department: 2622)
Television
Monitoring, testing, or measuring
Monitor
C702S067000, C345S440100
Reexamination Certificate
active
07154532
ABSTRACT:
A video field rate persistence is provided for a video waveform display where multiple video components are displayed simultaneously, one component being updated per field interval. A persistence count is assigned to each pixel in a circular field buffer which is divided equally into a number of sub-buffers representing a portion of a display raster, one for each component. The persistence count is updated for each update of the circular field buffer with the pixel values being maintained until the persistence count equals a maximum value, at which point the pixel values for that component are updated with new pixel values. In this manner the display pixels for each component are updated every X video fields and are maintained at their prior values between updates to provide a flicker free display without temporal separation.
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Albright Evan
Ivers Kevin T.
Gray Francis I.
Kostak Victor R.
Tektronix Inc.
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