专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07866781B2 Method and apparatus to check piezoelectric inkjet head 有权
标题翻译：检查压电喷墨头的方法和装置
公开(公告)号：US07866781B2
公开(公告)日：2011-01-11
申请号：US11775295
申请日：2007-07-10
申请人： Woo-sik Kim , Kye-si Kwon , Seong-jin Kim , Seung-joo Shin , Byung-Hun Kim , Sang-il Kim
发明人： Woo-sik Kim , Kye-si Kwon , Seong-jin Kim , Seung-joo Shin , Byung-Hun Kim , Sang-il Kim
IPC分类号： B41J29/393
CPC分类号： B41J2/04581 , B41J2/0451 , B41J2002/14354
摘要： A method and apparatus to check an operation of a piezoelectric inkjet head includes a first current detection unit to detect a first current output from a piezoelectric element of the piezoelectric inkjet head when a predetermined voltage is applied, a second current detection unit to detect a second current from a capacitor having a capacitance with the same magnitude as a capacitor component of the piezoelectric element when the voltage is applied to the capacitor, and a third current detection unit to detect a third current corresponding to a difference between the first current and the second current, as the amount of deformation of the piezoelectric element according to the application of the voltage.
摘要翻译：检查压电喷墨头的操作的方法和装置包括：第一电流检测单元，当施加预定电压时，检测从压电喷墨头的压电元件输出的第一电流;第二电流检测单元，用于检测第二电流检测单元当电压施加到电容器时，具有与压电元件的电容器部件具有相同幅度的电容的电容器的电流;以及第三电流检测单元，用于检测对应于第一电流和第二电压之间的差的第三电流电流，作为压电元件的变形量根据施加的电压。

2. 发明申请

US20080136859A1 METHOD AND APPARATUS TO CHECK PIEZOELECTRIC INKJET HEAD 有权
标题翻译：检查压电喷头的方法和装置
公开(公告)号：US20080136859A1
公开(公告)日：2008-06-12
申请号：US11775295
申请日：2007-07-10
申请人： Woo-sik Kim , Kye-si Kwon , Seong-jin Kim , Seung-joo Shin , Byung-Hun Kim , Sang-il Kim
发明人： Woo-sik Kim , Kye-si Kwon , Seong-jin Kim , Seung-joo Shin , Byung-Hun Kim , Sang-il Kim
IPC分类号： B41J29/393
CPC分类号： B41J2/04581 , B41J2/0451 , B41J2002/14354
摘要： A method and apparatus to check an operation of a piezoelectric inkjet head includes a first current detection unit to detect a first current output from a piezoelectric element of the piezoelectric inkjet head when a predetermined voltage is applied, a second current detection unit to detect a second current from a capacitor having a capacitance with the same magnitude as a capacitor component of the piezoelectric element when the voltage is applied to the capacitor, and a third current detection unit to detect a third current corresponding to a difference between the first current and the second current, as the amount of deformation of the piezoelectric element according to the application of the voltage.
摘要翻译：检查压电喷墨头的操作的方法和装置包括：第一电流检测单元，当施加预定电压时，检测从压电喷墨头的压电元件输出的第一电流;第二电流检测单元，用于检测第二电流检测单元当电压施加到电容器时，具有与压电元件的电容器部件具有相同幅度的电容的电容器的电流;以及第三电流检测单元，用于检测对应于第一电流和第二电压之间的差的第三电流电流，作为压电元件的变形量根据施加的电压。

3. 发明授权

US06390116B1 Large amplitude pneumatic oscillator 失效
标题翻译：大振幅气动振荡器
公开(公告)号：US06390116B1
公开(公告)日：2002-05-21
申请号：US09906423
申请日：2001-07-16
申请人： Byung-Hun Kim , David R. Williams
发明人： Byung-Hun Kim , David R. Williams
IPC分类号： G05D706
CPC分类号： B64C21/04 , B64C2230/02 , B64C2230/04 , B64C2230/06 , B64C2230/18 , F15C1/22 , Y02T50/166 , Y10T137/0396 , Y10T137/86405 , Y10T137/86421
摘要： A system for producing variable amplitude pneumatic pulses, such as may be used to prevent flow separation on airfoil and diffuser surfaces to control stalling, utilizes a source of pressurized air which is regulated and fed to parallel outlet lines. Each outlet line has a control valve therein attached to a controller for activation of the valves. The first parallel line leads to an actuator which supplies the pulsed air to a desired surface. The second parallel line leads to the atmosphere. By cycling the valves at about ninety degrees out of phase, pneumatic pulses of large amplitude are obtained with a simple device capable of being transported on the aircraft.
摘要翻译：用于产生可变幅度气动脉冲的系统，例如可以用于防止在翼型件和扩散器表面上的流动分离以控制失速，利用调节并供给到平行出口管线的加压空气源。每个出口管路上都有一个控制阀，连接到一个用于启动阀门的控制器。第一并行线通向致动器，该致动器将脉冲空气供给到期望的表面。第二条平行线通向大气。通过循环大约九十度的阀门，可以使用能够在飞机上运输的简单装置获得大振幅的气动脉冲。

4. 发明授权

US08413796B2 Sputter tray moving system 失效
标题翻译：溅射盘移动系统
公开(公告)号：US08413796B2
公开(公告)日：2013-04-09
申请号：US12487806
申请日：2009-06-19
申请人： Yang-Soo Kim , Young-Min Kee , Chang-Jin Kim , Byung-Hun Kim
发明人： Yang-Soo Kim , Young-Min Kee , Chang-Jin Kim , Byung-Hun Kim
IPC分类号： B65G13/06
CPC分类号： H01L21/67706 , H01L21/67721 , H01L21/6776
摘要： A sputter tray moving system includes a sputter tray, a guide disposed under the sputter tray and including a groove, a pulley engaged with the groove of the guide and a buffer member disposed between the sputter tray and the guide. The sputter tray is moved when the pulley engaged with the groove of the guide is rotated in a rotation direction.
摘要翻译：溅射盘移动系统包括溅射盘，设置在溅射盘下方并且包括凹槽的引导件，与引导件的凹槽接合的滑轮和设置在溅射盘和引导件之间的缓冲构件。当与引导件的凹槽接合的滑轮沿旋转方向旋转时，溅射盘移动。

5. 发明授权

US07959250B2 Method and apparatus to detect print location error using print dots 有权
标题翻译：使用打印点检测打印位置错误的方法和装置
公开(公告)号：US07959250B2
公开(公告)日：2011-06-14
申请号：US11770972
申请日：2007-06-29
申请人： Byung-Hun Kim
发明人： Byung-Hun Kim
IPC分类号： B41J29/393
CPC分类号： B41J2/2139 , B41J2/2142
摘要： A method and apparatus to detect a print location error using print dots. The method includes transforming values of pixels of a first image into frequency domains, where a plurality of print dots are arranged at predetermined intervals in the first image; transforming values of pixels of a second image, where the second image is obtained by actually printing the first image using an inkjet head; detecting 2D (2-dimensional) cross power spectral densities of the frequency-domain values of the first and second images; calculating 2D cross correlation values by transforming the 2D cross power spectral densities into time domain; and detecting error coordinates representing the distances between the print dots of the second image and the first image from the time-domain cross correlation values. Accordingly, it is possible to perform coordinates compensation by detecting errors between ideal print dots and actually printed print dots so that an image sensor can move exactly to print dots in order to sense print dots sprayed from an inkjet head that is newly exchanged in an image forming apparatus.
摘要翻译：使用打印点检测打印位置错误的方法和装置。该方法包括将第一图像的像素的值变换为频域，其中多个打印点以第一图像中的预定间隔排列; 变换第二图像的像素值，其中通过使用喷墨头实际打印第一图像来获得第二图像; 检测所述第一和第二图像的频域值的2D（2维）交叉功率谱密度; 通过将2D交叉功率谱密度转换为时域来计算2D互相关值; 以及从时域互相关值检测表示第二图像的打印点与第一图像之间的距离的误差坐标。因此，可以通过检测理想的打印点和实际打印的打印点之间的误差来执行坐标补偿，使得图像传感器可以精确地移动到打印点，以便感测从图像中新交换的喷墨头喷射的打印点成型装置。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式