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公开(公告)号：JP2006123559A
公开(公告)日：2006-05-18
申请号：JP2006019335
申请日：2006-01-27
Inventor： NARISHIMA TOSHIO , KAKINUMA KOICHIRO , SHINYA MASAO , MIKAMI SHINICHIRO
Abstract: PROBLEM TO BE SOLVED: To provide an inkjet printer which can print an image with a sufficient gradation, and a gradation control method of the inkjet printer.
SOLUTION: An error diffusion method makes input image data multivalued according to a plurality of thresholds set by a dither control part 13 depending on the number output gradation levels; an ink dot diameter control part 15 makes a multivalued value converted into a driving signal for controlling a diameter of a droplet of liquid ink in a plurality of stages in accordance with a predetermined relationship: and the driving signal is output to a head drive part 4 via a D/A conversion part 17. Printing is performed by means of a printhead 7, in accordance with a head application signal based on the head driving signal output from the head drive part 4.
COPYRIGHT: (C)2006,JPO&NCIPIAbstract translation: 要解决的问题：提供一种能够以足够的灰度打印图像的喷墨打印机和喷墨打印机的灰度控制方法。 解决方案：误差扩散方法根据由抖动控制部件13设定的多个阈值，根据输出灰度级数进行多值输入图像数据; 墨点直径控制部15根据预定关系，将多值转换成用于控制液滴墨滴直径的驱动信号，驱动信号输出到头驱动部4 通过D / A转换部分17.根据从头驱动部分4输出的头驱动信号的头应用信号，通过打印头7进行打印。（C）2006， JPO＆NCIPI
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公开(公告)号：JP2000083165A
公开(公告)日：2000-03-21
申请号：JP24047598
申请日：1998-08-26
Applicant: SONY CORP
Inventor： NARISHIMA TOSHIO , TANAKA YOSHINORI , OMURO HIDEAKI
IPC: B41J5/30 , G06K15/02 , G06T1/00 , G06T1/20 , H04N1/40 , H04N1/46 , H04N1/60 , H04N5/76 , H04N5/765 , H04N5/781
Abstract: PROBLEM TO BE SOLVED: To allow a displayed image on a display device and a print image by the printer to have visually identical image quality to each other. SOLUTION: The printer is provided with an image data input section 1 that converts externally received digital image data and/or an analog image signal into 1st digital image data by using an A/D converter, an image display output section 2 that outputs the 1st digital image data for display, an image print section 3 that prints out the 1st digital image data on a recording medium, and a characteristic correction section 4 that corrects a setting of a display output characteristic to specify display image quality in the image display output section 2 corresponding to the setting of the print image characteristic to specify the print image quality in the image print section 3 or corrects a setting of a print characteristic to specify the print image quality in the image print section 3 corresponding to the setting of the display output characteristic to specify the display image quality in the image display output section 2.
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公开(公告)号：JP2000071578A
公开(公告)日：2000-03-07
申请号：JP24194398
申请日：1998-08-27
Applicant: SONY CORP
Inventor： NARISHIMA TOSHIO
Abstract: PROBLEM TO BE SOLVED: To provide a printer capable of confirming progress status of printing during printing even when image data is printed. SOLUTION: This printer comprises an image printing section 3 having a print head 25 as an image printing device for printing first digital image data outputted from an image data inputting section 1 on a recording medium, an image indicating/outputting section 2 for indicating and outputting the first digital image data, and a human interface section 28 as an indicating/outputting control section that controls to change an indicating/outputting condition of an indicated image of the first digital image data in accordance with the printing progress status synchronized with the printing operation of the print head 25. The indicating/outputting condition of the indicated image of the first digital image data on the image indicating/outputting section 2 is changed in synchronism with the printing operation of the print head 25 in accordance with the printing progress status by controlling by virtue of the human interface section 28.
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公开(公告)号：JP2000066860A
公开(公告)日：2000-03-03
申请号：JP24047698
申请日：1998-08-26
Applicant: SONY CORP
Inventor： NARISHIMA TOSHIO
Abstract: PROBLEM TO BE SOLVED: To make an image to be displayed on a display device and an image to be printed by a printer device into images having the visually equal picture quality. SOLUTION: At a print-out processing part 24, display device processing part 22 and video signal processing part 23, it is discriminated by a prescribed discrimination method whether respective pixel data values within the prescribed range of first digital image data inputted from an image data input part 1 are settled within the prescribed data range or not. When it is discriminated that the pixel data values are not settled within the prescribed data range, prescribed processing is performed for settling the pixel data values within the prescribed data range. Then, data are printed out by an image printing part 3 and displayed on an image display output part 2.
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公开(公告)号：JPH10100391A
公开(公告)日：1998-04-21
申请号：JP25602596
申请日：1996-09-27
Applicant: SONY CORP
Inventor： NARISHIMA TOSHIO
Abstract: PROBLEM TO BE SOLVED: To provide a printer capable of printing images having plural resolutions in the sub-scanning direction by one head. SOLUTION: In a print head 101, a ratio K/N is an irreducible fraction with the proviso that N is the number of nozzles, K is the interval of nozzles. Line scanning printing of an image is intermittently performed at a Scan 1 and paper feeding by lines of nozzle number is performed in the sub-scanning direction by a unit of K. The above operation is repeated, then the printing of the image in the resolution more precise than the actual interval of nozzles in the sub-scanning direction is performed. A setting value related to K is taken as a parameter and an interleave operation is executed based on the setting value.
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Patent Agency Ranking
公开(公告)号：JPH09272226A
公开(公告)日：1997-10-21
申请号：JP11028696
申请日：1996-04-05
Applicant: SONY CORP
Inventor： NARISHIMA TOSHIO
Abstract: PROBLEM TO BE SOLVED: To control mutual interference between recorded dots and to increase picture quality by outputting original recording data and interpolating data respectively during a separate scanning period and performing recording in the case of performing prescribed recording on the basis of both the original recording data to be recorded and the interpolating data. SOLUTION: In the case of performing prescribed recording on the basis of both original recording data to be recorded e.g. original image data 181A to be imaged and interpolating data e.g. interpolation edge data 181B for emphasizing the edge of an image, the original recording data and the interpolating data are outputted respectively during a separate scanning period. Therefore, when one picture element is formed, ink adheres to recording paper 180 and is fixed. Even when other ink is allowed to adhere to the following adjacent position and the following picture element is formed, these ink does not mutually interfer in any way. Thereby, when density of the picture element is increased, it is controlled that ink on the recording paper blurs and ink is mutually mixed.
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公开(公告)号：JPH09267468A
公开(公告)日：1997-10-14
申请号：JP7717896
申请日：1996-03-29
Applicant: SONY CORP
Inventor： NARISHIMA TOSHIO
Abstract: PROBLEM TO BE SOLVED: To vary optionally the number of steps of tones of in-dot modulation and the conversion level of the multiple gradation dither method. SOLUTION: A computer 1 is provided with an image file 3, a multiple gradation dither setting means 4 and a display screen 5, while an ink jet printer 2 is provided with an in-dot tone setting means 6 and a printer head 7. The number of steps of tones of the in-dot density modulation in the ink jet printer 2 is so constituted as to sufficiently comply with any type of printer heads 7, and when the printer head 7 is used, the maximum number of steps used for the printer head 7 is set in a multiple tone dither setting means 4 to carry out the printing by the number of steps of tones of the in-dot modulation conforming to the printer head 7 to be used.
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公开(公告)号：JPH09220806A
公开(公告)日：1997-08-26
申请号：JP3078696
申请日：1996-02-19
Applicant: SONY CORP
Inventor： NARISHIMA TOSHIO
Abstract: PROBLEM TO BE SOLVED: To take the error measure of printing data. SOLUTION: For example, the command data of 8 bits from the main body 101 of a host computer 100 is supplied to an interface circuit 102 as it is while the printing data of 6 bits therefrom is supplied to an addition circuit 103 of error detection data. Error detection data of one bit setting '0', for example, when all of even number parity, odd number parity and 6 bits are '1' and/or setting '1' when all of 6 bits are '0' is formed and added to an LSB of 8 bits wherein printing data is provided to 6 bits on the side of an MSB. The printing data of 8 bits to which this error detection data is added is supplied to the interface circuit 102. Further, the control signal from the main body 101 is supplied to the interface circuit 102 and arbitrary command data and printing data are selected to be transmitted.
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公开(公告)号：JPH09174839A
公开(公告)日：1997-07-08
申请号：JP33719095
申请日：1995-12-25
Applicant: SONY CORP
Inventor： NARISHIMA TOSHIO
Abstract: PROBLEM TO BE SOLVED: To compensate for a change of the waveform of the drive signal due to the change of the value of the capacity component of an electro- mechanical transducer. SOLUTION: The drive signal to be input to a terminal 21 is supplied to a variable gain amplifier 23 via a buffer amplifier 22 and to a piezo element 25 via a power amplifier 24. The drive signal from the terminal 21 is supplied to a delay circuit 2 via a buffer amplifier 26. The signal supplied to the element 25 is supplied to a signal correcting circuit 29 via a buffer amplifier 28. The signals from the circuits 27 and 29 are supplied to a differential amplifier 30, and the differential component of the signals is supplied to the amplifier 23. Accordingly, the gain of the amplifier 23 is feedback controlled so that the signals supplied to the terminal 21 and to the element 25 become the predetermined relationship decided by the circuit 29.
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公开(公告)号：JPH09156133A
公开(公告)日：1997-06-17
申请号：JP32205695
申请日：1995-12-11
Applicant: SONY CORP
Inventor： NARISHIMA TOSHIO
Abstract: PROBLEM TO BE SOLVED: To perform high-grade printing of high resolving power by single operation by providing a first printing head wherein a plurality of nozzle groups are arranged under a specific condition and a plurality of heads different in recording color are arranged in a sub-scanning direction and a second printing head arranged in a main scanning direction. SOLUTION: A printing head is equipped with recording heads Y, M, C being first printing heads arranged in an X (main scanning) direction and a recording head Bk as a second printing head arranged in the same direction. The recording heads M, M, C are constituted by arranging three nozzle groups (N=3) 10 in a Y (sub-scanning) direction and the recording head Bk is equipped with a first nozzle group 11 consisting of three nozzles and a second nozzle group 12 arranged so as to leave an interval of Δ2 from the nozzle group 11 and consisting of three nozzles. The nozzle interval P of the first printing heads are arranged so as to satisfy the relation of P=K×D (wherein K is the number of dot intervals and D is a dot interval).
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