Television – Camera – system and detail – Optics
Reexamination Certificate
2005-12-06
2005-12-06
Moe, Aung (Department: 2685)
Television
Camera, system and detail
Optics
C348S345000, C348S356000
Reexamination Certificate
active
06972798
ABSTRACT:
An automatic focus adjustment device has an image sensing element for converting an object optical image into an electrical signal, and outputting an image signal, a filter for extracting high-frequency components of the image signal obtained by the image sensing element, an integrator for integrating the high-frequency components extracted by the filter and outputting an integrated value, a peak hold circuit for detecting and outputting a peak value of the high-frequency components extracted by the filter, a discrimination unit for discriminating the luminance distribution of the object optical image, and a focus adjustment unit for making focus adjustment using one of the integrated value output from the integrator and the peak value output from the peak hold circuit in accordance with the discrimination result.
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Moe Aung
Morgan & Finnegan L.L.P.
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