Television – Monitoring – testing – or measuring – Test signal generator
Reexamination Certificate
2008-07-01
2008-07-01
Tran, Trang U. (Department: 2622)
Television
Monitoring, testing, or measuring
Test signal generator
C348S180000, C348S184000, C348S189000
Reexamination Certificate
active
07394483
ABSTRACT:
A measurement pattern is moved on a display, and an image of the measurement pattern is captured by making a visual field of an image sensor follow the scroll of the measurement pattern. On the basis of the captured image, a motion picture response curve is obtained. Then, the motion picture response curve is transformed into an MTF (modulation transfer function). A normalized spatial frequency value N_Sf(a %) at which an MTF value starts declining by a predetermined percentage from a highest luminance portion of the MTF is determined. Then, the motion image quality of the display is evaluated on the basis of the normalized spatial frequency value N_Sf(a %). Thus, the evaluation of the motion image quality of the display can be achieved on the basis of an intuitively understandable motion image quality evaluation index.
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Notice of Allowance dated Mar. 14, 2008 issued in corresponding Korean application.
Finnegan Henderson Farabow Garrett & Dunner L.L.P.
Otsuka Electronics Co., Ltd.
Tran Trang U.
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