公开(公告)号：AU5838996A

公开(公告)日：1997-02-06

申请号：AU5838996

申请日：1996-07-08

Applicant: SONY CORP

Inventor： NARUSHIMA TOSHIO ,  KAKINUMA KOICHIRO ,  ARAYA MASAO ,  MIKAMI SHINICHIRO

IPC: B41J2/05 ,  B41J2/205 ,  H04N1/40 ,  H04N1/405 ,  B41J2/04 ,  G06F3/12

Abstract: A method for controlling gradation in an ink jet printer is provided which includes the steps of (a) reading input picture data in first memory means (b) determining the position of a pixel under consideration from the input picture data read out from the first memory means and for calculating an error +531 =X-X', where X is input picture data of the pixel under consideration and X' is a level of plural stages to be actually printed, (c) distributing the error +531 to surrounding pixels around the pixel under consideration, (d) replacing the input picture data of the surrounding pixels, to which the error has been distributed, based on the distributed error, (e) performing the steps (a) to (d) for all input picture data by way of dithering, (f) storing the dithered pixel data resulting from the step (e) in second memory means, (g) generating, from the dithered pixel data read out from the second memory means, output picture data controlling the ink dot diameter of each pixel, (h) D/A converting the output picture data and (i) impressing an output voltage resulting from D/A conversion across an electrostriction oscillator of the printing head for variably controlling the diameter of liquid droplets of the liquid ink discharged from the printing head.

公开(公告)号：CA2181223A1

公开(公告)日：1997-02-01

申请号：CA2181223

申请日：1996-07-15

Applicant: SONY CORP

Inventor： NARUSHIMA TOSHIO ,  KAKINUMA KOICHIRO ,  ARAYA MASAO ,  MIKAMI SHINICHIRO

IPC: B41J2/05 ,  B41J2/205 ,  H04N1/40 ,  H04N1/405 ,  B41F33/00 ,  B41F31/00

Abstract: A method for controlling gradation in an ink jet printer is provided which includes the steps of (a) reading input picture data in first memory means (b) determining the position of a pixel under consideration from the input picture data read out from the first memory means and for calculating an error .epsilon. = X -X', where X is input picture data of the pixel under consideration and X' is a level of plural stages to be actually printed, (c) distributing the error .epsilon. to surrounding pixels around the pixel under consideration, (d) replacing the input picture data of the surrounding pixels, to which the error has been distributed, based on the distributed error, (e) performing the steps (a) to (d) for all input picture data by way of dithering, (f) storing the dithered pixel data resulting from the step (e) in second memory means, (g) generating, from the dithered pixel data read out from the second memory means, output picture data controlling the ink dot diameter of each pixel, (h) D/A converting the output picture data and (i) impressing an output voltage resulting from D/A conversion across an electrostriction oscillator of the printing head for variably controlling the diameter of liquid droplets of the liquid ink discharged from the printing head.

公开(公告)号：AU701284B2

公开(公告)日：1999-01-21

申请号：AU5838996

申请日：1996-07-08

Applicant: SONY CORP

Inventor： NARUSHIMA TOSHIO ,  KAKINUMA KOICHIRO ,  ARAYA MASAO ,  MIKAMI SHINICHIRO

IPC: B41J2/05 ,  B41J2/205 ,  H04N1/40 ,  H04N1/405 ,  B41J2/04 ,  G06F3/12

Abstract: A method for controlling gradation in an ink jet printer is provided which includes the steps of (a) reading input picture data in first memory means (b) determining the position of a pixel under consideration from the input picture data read out from the first memory means and for calculating an error +531 =X-X', where X is input picture data of the pixel under consideration and X' is a level of plural stages to be actually printed, (c) distributing the error +531 to surrounding pixels around the pixel under consideration, (d) replacing the input picture data of the surrounding pixels, to which the error has been distributed, based on the distributed error, (e) performing the steps (a) to (d) for all input picture data by way of dithering, (f) storing the dithered pixel data resulting from the step (e) in second memory means, (g) generating, from the dithered pixel data read out from the second memory means, output picture data controlling the ink dot diameter of each pixel, (h) D/A converting the output picture data and (i) impressing an output voltage resulting from D/A conversion across an electrostriction oscillator of the printing head for variably controlling the diameter of liquid droplets of the liquid ink discharged from the printing head.

公开(公告)号：JP2002055849A

公开(公告)日：2002-02-20

申请号：JP2000244967

申请日：2000-08-11

Applicant: SONY CORP

Inventor： TENMA TAKAO ,  MIKAMI SHINICHIRO

IPC: G06F12/08 ,  G06F11/28 ,  G06F12/10

Abstract: PROBLEM TO BE SOLVED: To normally apply debugging processing using a hardware braking function to a program driven in a CPU using a virtual storage and an operating system. SOLUTION: When hardware brake occurs during the debugging processing of an application program 43 and a state that a current address is a virtual address which can not be converted by a CPU 41 is detected, the debugger 22a temporarily releases the hardware braking function and executes an address error processing routine in the operating system 42 to perform address error processing. Then the hardware braking function is set again and the application program 43 is executed again. When the hardware brake occurs, the CPU 41 can access the address, so that the debugger 22a can perform code analysis operation.

公开(公告)号：JPH0939274A

公开(公告)日：1997-02-10

申请号：JP19517895

申请日：1995-07-31

Applicant: SONY CORP

Inventor： NARISHIMA TOSHIO ,  KAKINUMA KOICHIRO ,  SHINYA MASAO ,  MIKAMI SHINICHIRO

IPC: B41J2/05 ,  B41J2/205 ,  H04N1/40 ,  H04N1/405

Abstract: PROBLEM TO BE SOLVED: To print an image having sufficient gradation by using a dither method. SOLUTION: Input image data is converted to multiple gradation dithered image data by a dither controller 13. The ink dot diameter of each pixel is controlled by an ink dot diameter controller 15, output as output image data to a D-A converter 17, and then output as a head drive signal to a head driver 4. An image is printed by a printing head 7 by a head application signal based on the head drive signal output from the driver 4.

公开(公告)号：JPH0939271A

公开(公告)日：1997-02-10

申请号：JP18930495

申请日：1995-07-25

Applicant: SONY CORP

Inventor： SHINYA MASAO ,  NARISHIMA TOSHIO ,  MIKAMI SHINICHIRO ,  KAKINUMA KOICHIRO

IPC: B41J2/21 ,  B41J2/045 ,  B41J2/055 ,  B41J2/205

Abstract: PROBLEM TO BE SOLVED: To reduce the number of D-A converters by so driving a second piezoelectric element by deviating the time as not to superpose print heads when a liquid chamber is pressed by a first piezoelectric element to ooze quantitative liquid and then the quantitative liquid is mixed with discharge liquid to be discharged by a second piezoelectric element. SOLUTION: When a full color printing is conducted, the quantitative amounts of inks are determined not simultaneously at all the colors of inks but determined in a time division manner. That is, piezoelectric elements provided at the quantitatively determining side of print heads 32, 33, 34, 35 corresponding to the colors are so driven by displacing the times as not to be superposed. D-A converters 36 provided one for each of print heads 32, 33, 34, 35 corresponding to the colors. However, the converters 36 are provided in number responsive to the number of nozzles provided at the heads 32, 33, 34, 35. The plurality of heads can be controlled by one D-A converter for one nozzle, and hence the number can be largely reduced.

公开(公告)号：JP2001346277A

公开(公告)日：2001-12-14

申请号：JP2000162317

申请日：2000-05-31

Applicant: SONY CORP

Inventor： YAJIMA MASARU ,  MIKAMI SHINICHIRO

IPC: H03M11/04 ,  G06F3/023 ,  G06F13/00 ,  H04N5/00 ,  H04Q9/00

Abstract: PROBLEM TO BE SOLVED: To provide a remote controller that can operate devices. SOLUTION: The remote controller defines a CSM to remotely control the hardware operation of each device and a URC as a general-purpose device to download and activate the CSM for each device. A CSM manager is active on the URC to provide a common operating environment to various CSMs. The access method to a specific function of each device hardware unit is installed by the CSM exclusively used for each device. In the case of downloading the CSMs to the URC, coordinating user operations via each CSM can enhance the convenience of the user.

公开(公告)号：JPH0994984A

公开(公告)日：1997-04-08

申请号：JP25426595

申请日：1995-09-29

Applicant: SONY CORP

Inventor： NARISHIMA TOSHIO ,  KAKINUMA KOICHIRO ,  SHINYA MASAO ,  MIKAMI SHINICHIRO ,  IKEGAMI JUNKO

IPC: B41J2/01 ,  B41J2/045 ,  B41J2/14 ,  B41J2/205 ,  B41J2/21 ,  H04N1/23 ,  H04N1/401 ,  H04N1/405

Abstract: PROBLEM TO BE SOLVED: To print by uniform quality and to further deal with the aging change by making it possible to manufacturing a low-cost multi-nozzle print head, raising the substantial resolution and printing at the accurate print gradation level. SOLUTION: A shading correcting unit 14 corrects a print data signal to be printed by using shading correction data previously obtained and stored in an EE-PROM 10 and shading correction data input from a man-machine interface unit 2, and generates a head application signal for driving a print head 16 from the print data after the correction.

公开(公告)号：JPH0929968A

公开(公告)日：1997-02-04

申请号：JP18701495

申请日：1995-07-24

Applicant: SONY CORP

Inventor： SHINYA MASAO ,  NARISHIMA TOSHIO ,  MIKAMI SHINICHIRO ,  KAKINUMA KOICHIRO

IPC: B41J2/045 ,  B41J2/055 ,  B41J2/205

Abstract: PROBLEM TO BE SOLVED: To enable in-dot density modulation without employing a D/A converter by a method wherein liquid is measured by modulating the number of pluses to be applied to a first piezoelectric element so as to modulate in-dot density in a printer device for mixingly discharging the measuring liquid and discharging liquid. SOLUTION: The measuring of ink in a printer device can be performed by modulating the number of pulses. Concretely, one pulse measures the minimum measuring amount of ink. By repeating the pulse several times, necessary density gradation is obtained. For example, the measuring of ink is performed in 256 times, the gray scale of 256 gradations in a dot can be obtained. Before the application of a discharging pulse, measuring pulse is applied several times to a second piezoelectric element 2. In order to modulate the number of pulses, a pulse generating device, in which the number of pulses can be varied, is used. By employing the modulating system of the number of pulses for in-dot density modulation, the desired density gradation is obtained without using a valuable D/A converter and, at the same time, a low cost printer device is obtained.

公开(公告)号：JP2006123559A

公开(公告)日：2006-05-18

申请号：JP2006019335

申请日：2006-01-27

Applicant: Sony Corp ,  ソニー株式会社

Inventor： NARISHIMA TOSHIO ,  KAKINUMA KOICHIRO ,  SHINYA MASAO ,  MIKAMI SHINICHIRO

IPC: B41J2/205 ,  B41J2/045 ,  B41J2/055

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&NCIPI

Abstract 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