中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

107 records (took 0.025 seconds)

    3.
    发明专利
    未知

    公开(公告)号：DE3784809T2

    公开(公告)日：1993-07-08

    申请号：DE3784809

    申请日：1987-08-17

    Applicant: CANON KK

    Inventor： KANEKO SHUZO ,  TOYONO TSUTOMU ,  YAMAMOTO TADASHI ,  ENARI MASAHIKO ,  KUNO MITSUTOSHI

    IPC: G09G3/20 ,  G09G3/36 ,  G02F1/137

    Abstract: An optical modulation device, such as a ferroelectric liquid crystal device, comprises a matrix of pixels (11) arranged in a plurality of rows (12) and a plurality of columns (13), pixels on each row being electrically connected to a scanning electrode (S1, S2, S3, S4) and pixels on each column being electrically connected to a signal electrode (I1, I2, I3, I4). The optical modulation device is driven by a method comprising, in a scanning selection period applying a scanning selection signal to a selected scanning electrode (S1, S2, S3, S4), the scanning selection signal comprising plural voltage levels including a maximum value ¦Vs.max¦ in terms of an absolute value with respect to the voltage level of a non-selected scanning electrode, and applying in phase with the scanning selection signal a voltage signal comprising plural voltage levels to a signal electrode (I1, I2, I3, I4) so as to apply to a pixel on the selected scanning electrode plural pulse voltages including a maximum value voltage ¦Vmax¦ and a minimum pulse voltage ¦Vmin¦ respectively in terms of an absolute value, satisfying the relationship of: ¦Vmax¦ - ¦Vmin¦

    4.
    发明专利
    未知

    公开(公告)号：DE69931679T2

    公开(公告)日：2007-06-14

    申请号：DE69931679

    申请日：1999-03-11

    Applicant: CANON KK

    Inventor： NAKATANI AKIHIKO ,  YAMAMOTO TADASHI ,  KANEKO KIYOSHI

    IPC: H04N1/40 ,  H04N1/191 ,  H04N1/48

    Abstract: In reading an original by mounting reading means (scanner unit) on a recording apparatus, the advancing width of the original is so reduced that the reading bands k, k+1, ..., are partially overlapped. For example in the color image reading, in generating the data of the (k+1)-th band, the data of a range overlapped with the k-th band are corrected by the data of the k-th band (for example by simple averaging), thereby achieving image reading without bandwise density fluctuation regardless of the reading mode and the original size.

    5.
    发明专利
    未知

    公开(公告)号：DE69326591D1

    公开(公告)日：1999-11-04

    申请号：DE69326591

    申请日：1993-10-29

    Applicant: CANON KK

    Inventor： KANEKO MINEO ,  MATSUMOTO HARUYUKI ,  HATTORI YOSHIFUMI ,  TOSAKA YOICHI ,  EBISAWA ISAO ,  YAMAMOTO TADASHI ,  MIYAGAWA MASASHI

    IPC: B41J2/15 ,  B41J2/21

    Abstract: An ink jet recording apparatus discharges inks of three primary colors from three discharge port groups each having a plurality of discharge pots to record swaths of the respective colors on a recording medium and repeats the above step to complete a record. Joints of the swaths of Y, M and C colors are spaced from joints of swaths of other two colors by an equal distance, and the discharge port groups are offset from each other by 8n times of a discharge port pitch in a direction of the feed of the recording medium.

    9.
    发明专利
    未知

    公开(公告)号：DE69931679D1

    公开(公告)日：2006-07-20

    申请号：DE69931679

    申请日：1999-03-11

    Applicant: CANON KK

    Inventor： NAKATANI AKIHIKO ,  YAMAMOTO TADASHI ,  KANEKO KIYOSHI

    IPC: H04N1/40 ,  H04N1/191 ,  H04N1/48

    Abstract: In reading an original by mounting reading means (scanner unit) on a recording apparatus, the advancing width of the original is so reduced that the reading bands k, k+1, ..., are partially overlapped. For example in the color image reading, in generating the data of the (k+1)-th band, the data of a range overlapped with the k-th band are corrected by the data of the k-th band (for example by simple averaging), thereby achieving image reading without bandwise density fluctuation regardless of the reading mode and the original size.

Patent Agency Ranking