中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

291 records (took 0.023 seconds)

    IMAGE PROCESSING APPARATUS
    11.
    发明专利
    IMAGE PROCESSING APPARATUS 未知

    公开(公告)号：CA1338068C

    公开(公告)日：1996-02-20

    申请号：CA616573

    申请日：1993-02-19

    Applicant: CANON KK

    Inventor： SAKAI MASANORI ,  HORII HIROYUKI ,  KOMINE TAKAYUKI ,  SUZUKI YASUMICHI ,  IKEDA YOSHINORI ,  HONMA TOSHIO

    IPC: H04N1/21 ,  H04N1/387 ,  H04N1/409

    Abstract: There is disclosed an image processing apparatus capable of reading image and synthesizing it with another standardized image signal supplied from outside and stored in a memory provided in the apparatus. Separate synchronization systems, not synchronized with each other, are synchronized with reading and writing apparatus in respect of the memory, the synchronization system synchronized to writing operations providing synchronization signals for a memory refreshing operation, and having a repetition rate sufficient to provide an adequate refresh rate.

    12.
    发明专利
    未知

    公开(公告)号：DE3854851D1

    公开(公告)日：1996-02-15

    申请号：DE3854851

    申请日：1988-08-10

    Applicant: CANON KK

    Inventor： KADOWAKI TOSHIHIRO ,  OHNISHI TETSUYA ,  IKEDA YOSHINORI

    IPC: G03F3/08 ,  G03G15/01 ,  H04N1/62 ,  H04N1/46

    Abstract: A color image processing apparatus for converting a predetermined color in color image data into data of desired characteristic extracts density information and hue information with respect to the color image data. Density information and hue information in respect to a predetermined color are set. Judgement is conducted as to whether a first difference between the density information of the color image data and the density information of the predetermined color falls within a first predetermined range and also as to whether a second difference between the hue information of the color image data and the hue information of the predetermined color falls within a second predetermined range. The color image data is converted into the predetermined color on condition that the first and second differences fall within the first and second predetermined ranges, respectively.

    13.
    发明专利
    未知

    公开(公告)号：DE3486390T2

    公开(公告)日：1995-12-07

    申请号：DE3486390

    申请日：1984-03-07

    Applicant: CANON KK

    Inventor： IKEDA YOSHINORI

    IPC: G06K15/12 ,  H04N1/387 ,  H04N1/46

    Abstract: An image processing apparatus has a character code buffer for receiving decoded character signal and generating data presenting a designated character image portion in response a character read address signal, a character generator for converting the readout data to dot data, a character image memory for storing the dot data in a memory area in response to a character write address signal, an image buffer memory for receiving decoded image data and generating data representing a designated half tone image region in response to a halftone read address signal, processing circuit blocks for performing a series of predetermined operations for the readout data, and a half tone image memory for storing the processed data in response to a halftone write address signal.

    15.
    发明专利
    未知

    公开(公告)号：DE3336588A1

    公开(公告)日：1984-04-12

    申请号：DE3336588

    申请日：1983-10-07

    Applicant: CANON KK

    Inventor： IKEDA YOSHINORI

    IPC: G03F3/08 ,  H04N1/52 ,  H04N1/60 ,  H04N1/46 ,  B41J3/04 ,  B41J3/20

    Abstract: A color image processing apparatus includes a signal generator for generating color signals representative of at least three color components, each having a density level, for one pixel. A detector detects a specific color having a density level exceeding a predetermined density level by detecting the signals representative of the three color components and generates a specific signal representative of that specific color. A first processor is responsive to the color signals to conduct half-tone reproduction processing of the color signals to output color output signals. A second processor is responsive to the specific signal for outputting a signal of a predetermined level. Finally, a prohibiting device prohibits the output of the color output signals by the first processor when the second processor outputs the signal of the predetermined level. In a preferred embodiment, the specific color is black. The apparatus can reproduce an image including a half-tone portion and a character or line portion with excellent halftone reproduction characteristics and excellent sharpness of the character or line portion.

    17.
    发明专利
    未知

    公开(公告)号：DE68929390D1

    公开(公告)日：2002-05-16

    申请号：DE68929390

    申请日：1989-06-20

    Applicant: CANON KK

    Inventor： SHIMIZU MASATOMO ,  IKEDA YOSHINORI ,  OHNISHI TETSUYA

    IPC: G06T3/40 ,  H04N1/40 ,  H04N1/405 ,  H04N1/56 ,  H04N1/60

    Abstract: The appts. processes a video colour image signal, e.g. derived from a colour document reader, and forms a visual image on an image forming, pref. electrophotography device such as a laser printer, corresp. to the processed signal. The resolution of the image can be changed during its formation. Processing circuitry is included to discriminate a character portion, pref. a black character portion, of an object colour image and change the resolution according to the results of the discrimination. Pref. the resolution is controlled to be higher when a black character portion is discriminated.

    20.
    发明专利
    未知

    公开(公告)号：DE69131783D1

    公开(公告)日：1999-12-23

    申请号：DE69131783

    申请日：1991-04-25

    Applicant: CANON KK

    Inventor： IKEDA YOSHINORI ,  KAWASE MICHIO ,  TAHARA MOTOAKI

    IPC: H04N1/60 ,  G06T1/00 ,  H04N1/387 ,  H04N1/41 ,  H04N1/46 ,  H04N1/48 ,  H04N1/64

    Abstract: An image processing system comprises: memory means for storing image data which has been read in order to supply the image data to a plurality of printer units; first means for reading out the image data which is stored into the memory means and for time-sharingly supplying to the printer units; and second means for supplying the read image data and an image data from an external section to said the memory means.

Patent Agency Ranking