专利内容由知识产权出版社提供
专利名称：Image information converting apparatus发明人：Tetsujiro Kondo,Takaya Hoshino,Hideo
Nakaya,Satoshi Inoue,Shizuo Chikaoka
申请号：US09429574申请日：19991028公开号：US06516088B1公开日：20030204
专利附图：
摘要：An NTSC signal is supplied to a first area extracting circuit and a second areaextracting circuit. The first area extracting circuit extracts class taps from the NTSC signal.The second area extracting circuit extracts predictive taps from the NTSC signal. The first
area extracting circuit extracts pixels in predetermined positions from same phase pixelsas a considered pixel. Based on level differences between extracted pixels, a patterndetecting section performs a class categorization. A class code determining sectiongenerates class codes based on the result of the class categorization and supplies thegenerated class codes to a coefficient memory. The coefficient memory outputs pre-stored predictive coefficients based on the class codes to a predictive calculating section.The predictive calculating section performs a sum of product calculation of pixel data aspredictive taps received from the first area extracting circuit and the predictive
coefficients received from the second area extracting circuit and generates for example acomponent signal Y with the result of the sum of product calculation.
申请人：SONY CORPORATION
代理机构：Frommer Lawrence & Haug LLP
代理人：William S. Frommer
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