专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06271881B1 Color image pickup apparatus for progressive scanning video signal 失效
标题翻译：用于逐行扫描视频信号的彩色图像拾取装置
公开(公告)号：US06271881B1
公开(公告)日：2001-08-07
申请号：US09066783
申请日：1998-04-27
申请人： Yuichirou Takahashi , Atsuto Kanazawa , Masaki Kariya , Masayuki Serizawa , Kenji Tamura , Kikuo Kobayashi , Masaaki Nakayama , Hiromichi Tanaka
发明人： Yuichirou Takahashi , Atsuto Kanazawa , Masaki Kariya , Masayuki Serizawa , Kenji Tamura , Kikuo Kobayashi , Masaaki Nakayama , Hiromichi Tanaka
IPC分类号： H04N314
CPC分类号： H04N9/045
摘要： A color image pickup apparatus includes a photo-to-electric conversion section subjected to progressive scanning. A first delay circuit defers an output signal of the photo-to-electric conversion section. A first adder combines the output signal of the photo-to-electric conversion section and an output signal of the first delay circuit. A second delay circuit defers the output signal of the first delay circuit. A second adder combines the output signal of the photo-to-electric conversion section and an output signal of the second delay circuit. A third delay circuit defers an output signal of the first adder. A first subtracter implements subtraction between the output signal of the first adder and an output signal of the third delay circuit. A fourth delay circuit defers an output signal of the second adder. A second subtracter implements subtraction between the output signal of the second adder and an output signal of the fourth delay circuit. A first sign change circuit inverts a sign of an output signal of the first subtracter. A first selector periodically and alternately selects one of the output signal of the first subtracter and an output signal of the first sign change circuit. A second sign change circuit inverts a sign of an output signal of the second subtracter. A second selector periodically and alternately selects one of the output signal of the second subtracter and an output signal of the second sign change circuit. Two different color-difference signals are generated in response to an output signal of the first selector and an output signal of the second selector.
摘要翻译：彩色图像拾取装置包括经过逐行扫描的光电转换部分。第一延迟电路延迟光电转换部分的输出信号。第一加法器组合光电转换部分的输出信号和第一延迟电路的输出信号。第二延迟电路延迟第一延迟电路的输出信号。第二加法器组合光电转换部分的输出信号和第二延迟电路的输出信号。第三延迟电路延迟第一加法器的输出信号。第一减法器在第一加法器的输出信号和第三延迟电路的输出信号之间进行减法。第四延迟电路延迟第二加法器的输出信号。第二减法器在第二加法器的输出信号和第四延迟电路的输出信号之间进行减法。第一符号改变电路反转第一减法器的输出信号的符号。第一选择器周期性地交替地选择第一减法器的输出信号和第一符号改变电路的输出信号之一。第二符号改变电路反转第二减法器的输出信号的符号。第二选择器周期性地交替地选择第二减法器的输出信号和第二符号改变电路的输出信号之一。响应于第一选择器的输出信号和第二选择器的输出信号产生两个不同的色差信号。

IPRDB

热门服务

关于我们

友情链接

联系方式