Television – Image signal processing circuitry specific to television – Transition or edge sharpeners
Reexamination Certificate
2006-08-29
2006-08-29
Ometz, David (Department: 2614)
Television
Image signal processing circuitry specific to television
Transition or edge sharpeners
C348S625000, C348S606000, C382S266000, C382S263000, C358S532000, C358S447000
Reexamination Certificate
active
07098964
ABSTRACT:
A time-discrete picture signal is formed from an analog picture signal, such as a luminance signal or a chrominance signal. Corresponding to the time-discrete picture signal, a time-discrete filter signal is formed, specifically a so-called “peaking signal,” which has a sequence of peaking signal values, of which one value each is associated with one signal value of the time-discrete picture signal. The discrete peaking signal is formed by a digital peaking filter from the discrete picture signal or by an analog peaking filter from the analog picture signal during subsequent sampling of the analog peaking signal. The peaking filter increases the amplitude of selected frequency components of the picture signal.
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Kazuhiro Ohara and Adam Kunzman, “Video Processing Technique for Multimedia HDTV with Digital Micro-Mirror Array,” IEEE Transactions on Consumer Electronics: Aug. 1999; pp. 604-610.
Hahn Marko
Rieder Peter
Scheffler Günter
Wendel Dirk
Desir Jean W.
MICRONAS GmbH
Ometz David
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