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公开(公告)号:DE68928928T2
公开(公告)日:1999-07-29
申请号:DE68928928
申请日:1989-06-20
Applicant: CANON KK
Inventor: SHIMIZU MASATOMO , IKEDA YOSHINORI , OHNISHI TETSUYA
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.
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公开(公告)号:DE3752252T2
公开(公告)日:1999-07-29
申请号:DE3752252
申请日:1987-11-13
Applicant: CANON KK
Inventor: SUZUKI YASUMICHI , IKEDA YOSHINORI , KATOH KOICHI , OHNISHI TETSUYA , KADOWAKI TOSHIHIRO , HONMA TOSHIO
Abstract: A color image processing apparatus such as a color copying machine has a color appointing device for enabling an operator to appoint any desired color involved in an original image, a color range changing device for manually or automatically changing the size of range of the colors which can be regarded as being the same as the predetermined color, a target color appointing for appointing a color to which the predetermined color is to be converted, and a color image forming device such as a laser beam printer for forming a color image with the predetermined color and colors in the color range converted into the target color.
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公开(公告)号:DE69030280T2
公开(公告)日:1997-10-30
申请号:DE69030280
申请日:1990-05-04
Applicant: CANON KK
Inventor: IKEDA YOSHINORI , ICHIKAWA HIROYUKI , KURITA MITSURU , SUZUKI YASUMICHI , KITAMURA TOSHIYUKI
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公开(公告)号:DE69030463T2
公开(公告)日:1997-09-11
申请号:DE69030463
申请日:1990-05-04
Applicant: CANON KK
Inventor: IKEDA YOSHINORI , ICHIKAWA HIROYUKI , KURITA MITSURU , SUZUKI YASUMICHI , KITAMURA TOSHIYUKI , KATO KOICHI
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公开(公告)号:DE3408107C2
公开(公告)日:1996-05-30
申请号:DE3408107
申请日:1984-03-05
Applicant: CANON KK
Inventor: IKEDA YOSHINORI , YOSHIDA TADASHI , HAYASHI KIMIYOSHI , ABE SHUNICHI , MATSUOKA NOBUO , AKIYAMA MITSUO , MITA YOSHINOBU
Abstract: A color image reading apparatus having a color sensor with plural sensor groups, the color sensor for separating an objective image into plural color components and for converting the plural color components into plural color component signals, and a shading corrector for performing shading correction for the plural color component signals. The shading corrector causes the plural sensor groups to substantially simultaneously read a reference plate and automatically corrects a shading correction state for each of the plural color component signals in accordance with data obtained from the plural sensor groups.
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公开(公告)号:FR2627654B1
公开(公告)日:1995-08-11
申请号:FR8813574
申请日:1988-10-14
Applicant: CANON KK
Inventor: SAKAI MASANORI , HORII HIROYUKI , KOMINE TAKAYUKI , SUZUKI YASUMICHI , IKEDA YOSHINORI , HONMA TOSHIO
Abstract: There is disclosed an image processing apparatus capable of reading image (at 1) and synthesizing it (at 12) with another standardized image signal supplied from outside and stored (at 3) in a memory provided in the apparatus.
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公开(公告)号:DE3889283D1
公开(公告)日:1994-06-01
申请号:DE3889283
申请日:1988-10-11
Applicant: CANON KK
Inventor: SAKAI MASANORI , HORII HIROYUKI , KOMINE TAKAYUKI , SUZUKI YASUMICHI , IKEDA YOSHINORI , HONMA TOSHIO
Abstract: There is disclosed an image processing apparatus capable of reading image (at 1) and synthesizing it (at 12) with another standardized image signal supplied from outside and stored (at 3) in a memory provided in the apparatus.
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公开(公告)号:GB2145598B
公开(公告)日:1987-01-28
申请号:GB8405862
申请日:1984-03-06
Applicant: CANON KK
Inventor: IKEDA YOSHINORI , YOSHIDA TADASHI , HAYASHI KIMIYOSHI
Abstract: A halftone image recording apparatus includes means for recording an image on a recording medium, inputting an image signal representative of an image which includes a plurality of density levels, generating a plurality of pulsed periodic signals having different widths of one period of the image signal, selecting at least one periodic signal with a preselected pulse width among a plurality of the periodic signals, combining the selected periodic signal with the image signal, and applying the combined signal to the recording means.
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公开(公告)号:DE3341774A1
公开(公告)日:1984-05-24
申请号:DE3341774
申请日:1983-11-18
Applicant: CANON KK
Inventor: IKEDA YOSHINORI
IPC: G03G15/041 , G03G15/047 , G03G15/04 , G03B27/52
Abstract: An image-forming device has a control unit which controls an image field on a photosensitive drum in accordance with information on the format of an original as detected by means of an original format detector, and in accordance with a magnification/demagnification scale determined by a selected mode of operation for magnification/demagnification. An unused field outside the desired image field is discharged.
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公开(公告)号:DE3327270A1
公开(公告)日:1984-02-02
申请号:DE3327270
申请日:1983-07-28
Applicant: CANON KK
Inventor: IKEDA YOSHINORI
Abstract: An image reproduction device is specified which has a plurality of recording material containers, a device for generating a plurality of characteristic signals including at least characteristic signals for the plurality of containers, the characteristic signals serving to carry out the image reproduction, a determining device for establishing other characteristics from predetermined characteristic signals of the characteristic signal generating device and an operating device, which permits an arbitrary choice of the other characteristics which is independent of the predetermined characteristic signals.
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