Median filter with embedded analog to digital converter
Patent 5995163 Issued on November 30, 1999. Estimated Expiration Date: 
September 30, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
September 30, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesHardware median filter Adaptive median filter system Image preprocessing by modified median filter Digital filtering by threshold decomposition Interlaced-to-progressive scanning converter with a double-smoother and a method therefor Patent #: 5488421 InventorAssigneeApplicationNo. 723897 filed on 09/30/1996US Classes:348/572, A/D converters348/571IMAGE SIGNAL PROCESSING CIRCUITRY SPECIFIC TO TELEVISIONExaminersPrimary: Faile, AndrewAssistant: Le, Uyen Attorney, Agent or FirmInternational ClassH03M 001/12AbstractA digital median filter is made using a successive approximation A/D converter circuit, which is arranged to produce an output based on majority weighting.Other References
Field of SearchLine doublers type (e.g., interlace to progressive IDTV type)Changing number of lines for standard conversion FORMAT CONVERSION A/D converters Including dither Selective image modification (e.g., touch up) Blackspot or shading correction (e.g., corrects for fixed pattern defects) Dropout compensator (e.g., replacement type) For color television Transition or edge sharpeners Digital IMAGE SIGNAL PROCESSING CIRCUITRY SPECIFIC TO TELEVISION | |
