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1. 发明申请

US20110157407A1 DOCUMENT CAMERA WITH SIZE-ESTIMATING FUNCTION AND SIZE ESTIMATION METHOD 有权
标题翻译：具有尺寸估计功能和尺寸估计方法的文档相机
公开(公告)号：US20110157407A1
公开(公告)日：2011-06-30
申请号：US12980173
申请日：2010-12-28
申请人： Shi-Qiang Lin , Yu-Shan Huang , Chao-Hung Chang , Hsuan-Hung Liu
发明人： Shi-Qiang Lin , Yu-Shan Huang , Chao-Hung Chang , Hsuan-Hung Liu
IPC分类号： H04N5/228 , G06K9/00
CPC分类号： G06K9/3233 , G06K9/036 , G06K9/42
摘要： A size estimation method is used with a document camera to estimate an object size. The document camera includes a lens and an image sensor. The size estimation method includes the following steps. Firstly, an object distance between the lens and the object is detected. According to the object distance and a viewable angle of the lens, a shooting zone size is estimated. Then, the object is shot by the lens and the image sensor, thereby acquiring a digital image including an image of the object. Then, an effective pixel number corresponding to the object image is counted. Afterward, the size of the object is estimated according to the effective pixel number, a total pixel number of the image sensor and the shooting zone size.
摘要翻译：尺寸估计方法与文档照相机一起使用以估计对象尺寸。文件照相机包括透镜和图像传感器。尺寸估计方法包括以下步骤。首先，检测透镜和物体之间的物体距离。根据物体距离和透镜的可视角度，估计拍摄区域尺寸。然后，由透镜和图像传感器拍摄物体，从而获取包括物体的图像的数字图像。然后，计数与对象图像对应的有效像素数。然后，根据有效像素数，图像传感器的总像素数和拍摄区大小来估计对象的大小。

2. 发明授权

US08368752B2 Document camera with size-estimating function and size estimation method 有权
标题翻译：具有尺寸估计功能和尺寸估算方法的文件相机
公开(公告)号：US08368752B2
公开(公告)日：2013-02-05
申请号：US12980173
申请日：2010-12-28
申请人： Shi-Qiang Lin , Yu-Shan Huang , Chao-Hung Chang , Hsuan-Hung Liu
发明人： Shi-Qiang Lin , Yu-Shan Huang , Chao-Hung Chang , Hsuan-Hung Liu
IPC分类号： H04N7/18 , G06F3/12 , G06K9/66
CPC分类号： G06K9/3233 , G06K9/036 , G06K9/42
摘要： A size estimation method is used with a document camera to estimate an object size. The document camera includes a lens and an image sensor. The size estimation method includes the following steps. Firstly, an object distance between the lens and the object is detected. According to the object distance and a viewable angle of the lens, a shooting zone size is estimated. Then, the object is shot by the lens and the image sensor, thereby acquiring a digital image including an image of the object. Then, an effective pixel number corresponding to the object image is counted. Afterward, the size of the object is estimated according to the effective pixel number, a total pixel number of the image sensor and the shooting zone size.
摘要翻译：尺寸估计方法与文档照相机一起使用以估计对象尺寸。文件照相机包括透镜和图像传感器。尺寸估计方法包括以下步骤。首先，检测透镜和物体之间的物体距离。根据物体距离和透镜的可视角度，估计拍摄区域尺寸。然后，由透镜和图像传感器拍摄物体，从而获取包括物体的图像的数字图像。然后，计数与对象图像对应的有效像素数。然后，根据有效像素数，图像传感器的总像素数和拍摄区大小来估计对象的大小。

3. 发明授权

US08488357B2 Reference cell architectures for small memory array block activation 有权
标题翻译：小型存储器阵列块激活的参考单元结构
公开(公告)号：US08488357B2
公开(公告)日：2013-07-16
申请号：US12925492
申请日：2010-10-22
申请人： Toshio Sunaga , Lejan Pu , Perng-Fei Yuh , Chao-Hung Chang
发明人： Toshio Sunaga , Lejan Pu , Perng-Fei Yuh , Chao-Hung Chang
IPC分类号： G11C5/08
CPC分类号： G11C5/063 , G11C7/14 , G11C8/12 , G11C11/1655 , G11C11/1657 , G11C11/1673 , G11C11/1675
摘要： Systems and methods for realizing reference currents to improve reliability of sensing operations of segmented semiconductor memory arrays have been achieved. Preferred embodiments of the invention comprise MRAM arrays but the invention could be applied to any other memories requiring access on small, segmented arrays. All embodiments of the invention comprise a folded bit lines scheme, either in adjacent bit lines or in segment-to-segment folded bit lines. In two embodiments alternate strapping of Poly-Si Word Lines in every second segment is achieved by metal layer of Read Word Line and Write Select Line. An embodiment has stored 1 and 0 cells on both sides of a selected segment to be read.
摘要翻译：已经实现了用于实现参考电流以提高分段半导体存储器阵列的感测操作的可靠性的系统和方法。本发明的优选实施例包括MRAM阵列，但是本发明可以应用于需要在小的分段阵列上访问的任何其他存储器。本发明的所有实施例包括在相邻位线中或在段到段折叠的位线中的折叠位线方案。在两个实施例中，通过读取字线和写入选择线的金属层实现了每个第二段中的多晶硅字线的交替捆扎。一个实施例在要读取的所选择的段的两侧上存储了1个和0个单元。

4. 发明申请

US20120099358A1 Reference cell architectures for small memory array block activation 有权
标题翻译：小型存储器阵列块激活的参考单元结构
公开(公告)号：US20120099358A1
公开(公告)日：2012-04-26
申请号：US12925492
申请日：2010-10-22
申请人： Toshio Sunaga , Lejan Pu , Perng-Fei Yuh , Chao-Hung Chang
发明人： Toshio Sunaga , Lejan Pu , Perng-Fei Yuh , Chao-Hung Chang
IPC分类号： G11C5/08 , G11C5/06
CPC分类号： G11C5/063 , G11C7/14 , G11C8/12 , G11C11/1655 , G11C11/1657 , G11C11/1673 , G11C11/1675
摘要： Systems and methods for realizing reference currents to improve reliability of sensing operations of segmented semiconductor memory arrays have been achieved. Preferred embodiments of the invention comprise MRAM arrays but the invention could be applied to any other memories requiring access on small, segmented arrays. All embodiments of the invention comprise a folded bit lines scheme, either in adjacent bit lines or in segment-to-segment folded bit lines. In two embodiments alternate strapping of Poly-Si Word Lines in every second segment is achieved by metal layer of Read Word Line and Write Select Line. An embodiment has stored 1 and 0 cells on both sides of a selected segment to be read.
摘要翻译：已经实现了用于实现参考电流以提高分段半导体存储器阵列的感测操作的可靠性的系统和方法。本发明的优选实施例包括MRAM阵列，但是本发明可以应用于需要在小的分段阵列上访问的任何其他存储器。本发明的所有实施例包括在相邻位线中或在段到段折叠的位线中的折叠位线方案。在两个实施例中，通过读取字线和写入选择线的金属层实现了每个第二段中的多晶硅字线的交替捆扎。一个实施例在要读取的所选择的段的两侧上存储了1个和0个单元。

5. 发明授权

US08217684B2 Fast and accurate current driver with zero standby current and features for boost and temperature compensation for MRAM write circuit 有权
标题翻译：具有零待机电流的快速准确的电流驱动器和用于MRAM写电路的升压和温度补偿功能
公开(公告)号：US08217684B2
公开(公告)日：2012-07-10
申请号：US12925004
申请日：2010-10-12
申请人： Perng-Fei Yuh , Pokang Wang , Lejan Pu , Minh Tran , Chao-Hung Chang
发明人： Perng-Fei Yuh , Pokang Wang , Lejan Pu , Minh Tran , Chao-Hung Chang
IPC分类号： H03B1/00
CPC分类号： G05F3/26 , G11C11/16 , G11C29/021 , G11C29/028
摘要： Systems and methods for realizing current drivers without current or voltage feedback for devices that require accurate current drive with zero standby current has been disclosed. In a preferred embodiment of the invention this current driver is applied for write circuits for MRAMs. A fast and accurate reference current is generated by diode voltage divided by resistor without any feedback. The diode current is not fed back from the reference current. The diode current is generated from a regulated voltage. Temperature compensation of the write current is inherently built in the diode current reference. Fine-tuning of the temperature coefficient is achieved by mixing poly and diffusion resistors. A switch inserted in the current driver can turn on the driver fast and without a need for standby current. Leading boost in the current driver can fast charge the large coupling capacitance of word and bit lines and speed up write timing.
摘要翻译：已经公开了用于实现没有电流或电压反馈的电流驱动器的系统和方法，用于需要具有零待机电流的精确电流驱动的装置。在本发明的优选实施例中，该电流驱动器被应用于MRAM的写入电路。通过二极管电压除以电阻而没有任何反馈产生快速准确的参考电流。二极管电流不从参考电流反馈。二极管电流由调节电压产生。写入电流的温度补偿固有地内置在二极管电流参考中。通过混合多聚电阻和扩散电阻来实现温度系数的微调。插入当前驱动程序的开关可快速打开驱动器，无需待机电流。当前驱动器的领先提升可以快速充电字和位线的大耦合电容，并加快写时序。

6. 发明申请

US20080180520A1 SYSTEM AND METHOD FOR VARIABLE-RESOLUTION IMAGE SAVING 审中-公开
标题翻译：用于可变分辨率图像保存的系统和方法
公开(公告)号：US20080180520A1
公开(公告)日：2008-07-31
申请号：US11627424
申请日：2007-01-26
申请人： Chao-Hung Chang , Tain-Tzu Chang , Chow-Ing Chang
发明人： Chao-Hung Chang , Tain-Tzu Chang , Chow-Ing Chang
IPC分类号： H04N7/00
CPC分类号： H04N5/77
摘要： A system and method for variable-resolution image saving includes an image capturing member, a data saving member, and an image data processor. A first panoramic image data is captured by the image capturing member in high resolution. The image data is then analyzed and divided into target area and background area. The resolution of background area is lowered to reduce the size of image data. A second panoramic image is then formed with the target area in original high resolution and background area in lower resolution. In this way, memory size and time required for storing and transmitting the second panoramic image data are greatly reduced without loosing important features of the target area.
摘要翻译：用于可变分辨率图像保存的系统和方法包括图像捕获构件，数据保存构件和图像数据处理器。第一全景图像数据被高分辨率的图像捕获构件捕获。然后分析图像数据并将其划分为目标区域和背景区域。降低背景区域的分辨率以减小图像数据的大小。然后以较低分辨率的原始高分辨率和背景区域中的目标区域形成第二全景图像。以这种方式，存储和发送第二全景图像数据所需的存储器大小和时间大大减少，而不会失去目标区域的重要特征。

7. 发明申请

US20060007307A1 Partial image saving system and method 审中-公开
标题翻译：部分图像保存系统和方法
公开(公告)号：US20060007307A1
公开(公告)日：2006-01-12
申请号：US10888707
申请日：2004-07-12
申请人： Chao-Hung Chang
发明人： Chao-Hung Chang
IPC分类号： H04N7/18 , H04N9/47
CPC分类号： G08B13/19676 , G08B13/19669 , H04N7/18
摘要： The present invention relates to a system and method for partial image saving. The system contains at least one image-taking device, and one digital data saving and process device, which is connected to said image-taking device for receiving and process the latest image data. The digital data saving and process device contains at least one data saving device, and one image data process device. The data saving device contains at least one temporary data file, and at least one long-term data file. The latest complete image data taken by the image-taking device is first stored in the temporary data file. The image data process device will then identify targets of interest, within the complete image area, based on user-defined criteria. The image data around the targets of interest are finally stored in the long-term data file. The temporary data file will then be empty, ready for next image data. With this method, the repeated, un-important background image data are eliminated; only the image data of the area surrounding the targets of interest are stored and/or transmitted. The burden of storing and transmitting image data can be significantly reduced. The purpose of surveillance covering large area while keeping only the image data of targets of interest is then meet.
摘要翻译：本发明涉及用于部分图像保存的系统和方法。该系统包含至少一个摄像设备和一个数字数据保存和处理设备，其连接到所述摄像设备，用于接收和处理最新的图像数据。数字数据保存和处理装置包含至少一个数据保存装置和一个图像数据处理装置。数据保存装置包含至少一个临时数据文件和至少一个长期数据文件。由摄像装置拍摄的最新的完整图像数据首先存储在临时数据文件中。然后，图像数据处理装置将根据用户定义的标准在完整图像区域内识别感兴趣的目标。感兴趣目标周围的图像数据最终存储在长期数据文件中。临时数据文件将为空，准备下一个图像数据。利用该方法，消除了重复的不重要的背景图像数据; 仅存储和/或发送感兴趣目标周围区域的图像数据。存储和传输图像数据的负担可以大大降低。然后满足大面积监视的目的，同时只保留目标的图像数据。

8. 发明授权

US6002604A Smart five volt generator operable from different power supply voltages 失效
标题翻译：智能五伏发生器可从不同的电源电压操作
公开(公告)号：US6002604A
公开(公告)日：1999-12-14
申请号：US968699
申请日：1997-11-10
申请人： Julia Shau-Chang Chan , Chao-Hung Chang , Paul Jei-Zen Song
发明人： Julia Shau-Chang Chan , Chao-Hung Chang , Paul Jei-Zen Song
IPC分类号： G05F1/46 , G11C5/14 , G11C16/30 , H02M1/10 , G11C13/00
CPC分类号： G05F1/465 , G11C16/30 , G11C5/14 , G11C5/147
摘要： A 5V generator circuit is disclosed that generates a reliable 5V signal for use in integrated circuits from the available VPP or VCC supplies for a wide range of VPP and VCC voltages. When VCC is greater than approximately 4V, the generator circuit generates the 5V signal directly from VCC. When VCC is less than approximately 4V and VPP is greater than approximately 4V but less than about 9V, the generator circuit generates the 5V signal directly from VPP. When VCC is less than approximately 4V and VPP is greater than approximately 9V, the generator produces the 5V signal at approximately half of the voltage level of the VPP signal. When both VCC and VPP are less than about 4V, the 5V signal is generated at the too-low VCC level.
摘要翻译：公开了一种5V发生器电路，其产生用于集成电路的可靠的5V信号，用于可用的VPP或VCC电源，用于宽范围的VPP和VCC电压。当VCC大于4V时，发电机电路直接从VCC生成5V信号。当VCC小于约4V且VPP大于约4V但小于约9V时，发电机电路直接从VPP产生5V信号。当VCC小于约4V且VPP大于约9V时，发生器产生大约为VPP信号电压电平的一半的5V信号。当VCC和VPP都小于约4V时，5V信号在过低的VCC电平下产生。

9. 发明申请

US20120086476A1 Fast and accurate current driver with zero standby current and features for boost and temperature compensation for MRAM write circuit 有权
公开(公告)号：US20120086476A1
公开(公告)日：2012-04-12
申请号：US12925004
申请日：2010-10-12
申请人： Perng-Fei Yuh , Pokang Wang , Lejan Pu , Minh Tran , Chao-Hung Chang
发明人： Perng-Fei Yuh , Pokang Wang , Lejan Pu , Minh Tran , Chao-Hung Chang
IPC分类号： H03K3/00
CPC分类号： G05F3/26 , G11C11/16 , G11C29/021 , G11C29/028
摘要： Systems and methods for realizing current drivers without current or voltage feedback for devices that require accurate current drive with zero standby current has been disclosed. In a preferred embodiment of the invention this current driver is applied for write circuits for MRAMs. A fast and accurate reference current is generated by diode voltage divided by resistor without any feedback. The diode current is not fed back from the reference current. The diode current is generated from a regulated voltage. Temperature compensation of the write current is inherently built in the diode current reference. Fine-tuning of the temperature coefficient is achieved by mixing poly and diffusion resistors. A switch inserted in the current driver can turn on the driver fast and without a need for standby current. Leading boost in the current driver can fast charge the large coupling capacitance of word and bit lines and speed up write timing.

10. 发明授权

US07025470B2 Mechanism for rotatable image-taking device 失效
公开(公告)号：US07025470B2
公开(公告)日：2006-04-11
申请号：US10893734
申请日：2004-07-19
申请人： Chao-Hung Chang
发明人： Chao-Hung Chang
IPC分类号： G02B7/182
CPC分类号： G03B17/561 , G03B17/565
摘要： An improved mechanism for rotatable image taking device, the rotatable mirror set in front of a fixed image-taking device with angle of reflection controlling mechanism at the rear side of the mirror. The mechanism includes a fixed rod with universal joint at the center, a horizontal rotating rod with universal joint, and a vertical rotating rod with universal joint. There are also three universal joints situated at the center, upper or lower side, and left or right side of the back face of the mirror. The invention can reduce the total cost of the rotatable image-taking device and improve the speed of changing angles.

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