发明授权
US4903122A Solid-state color imaging apparatus for extended definition television
(EDTV)
失效
用于扩展清晰度电视(EDTV)的固态彩色成像装置
- 专利标题: Solid-state color imaging apparatus for extended definition television (EDTV)
- 专利标题(中): 用于扩展清晰度电视(EDTV)的固态彩色成像装置
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申请号: US142919申请日: 1988-01-12
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公开(公告)号: US4903122A公开(公告)日: 1990-02-20
- 发明人: Toshifumi Ozaki , Naoki Ozawa , Shinya Ohba , Itaru Mimura
- 申请人: Toshifumi Ozaki , Naoki Ozawa , Shinya Ohba , Itaru Mimura
- 申请人地址: JPX Tokyo
- 专利权人: Hitachi, Ltd.
- 当前专利权人: Hitachi, Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX62-16060 19870128
- 主分类号: H04N9/04
- IPC分类号: H04N9/04
摘要:
A high resolution solid-state color imaging apparatus having two-dimensionally disposed photoelectric sensors are arranged in rows and columns each having a color spectral responsivity characteristic such as by employing color filters. Each of the photoelectric sensors is scanned so as to obtain an intensity signal with respect to each row of each field, and wherein scanning of each field is for the same number of rows as that of each frame. Intensity signals are obtained only by the scanned output of each row. Additional intensity signals equal to half the number of said first mentioned intensity signals are obtained by a 2:1 subsampling of bandwidth-restricted signals by a filter along the vertical temporal frequency, thereby realizing high vertical resolution by the photoelectric image sensors of conventional row numbers and having compatibility with a conventional NTSC system and, furthermore, eliminating aliasing distortion.
公开/授权文献
- US06147746A Process for optical measurement of relative angles 公开/授权日:2000-11-14
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