Wen-Chi Chang
Wen-Chi Chang US
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20100285727 | Sander - A sander has a base, a rotating assembly, multiple abrasive assemblies, multiple driving assemblies and multiple reciprocating assemblies. The rotating assembly is rotatably mounted on the base on an axis that is parallel to a Z-axis and has a bottom end. The abrasive assemblies move linearly and reciprocatorily in a plane parallel to an X-Y plane and are rotatably mounted on the bottom end of the rotating assembly. The driving assemblies are respectively connected to and drive the abrasive assemblies to rotate. The reciprocating assemblies are mounted securely on the rotating assembly to linearly and reciprocatorily drive the abrasive assemblies in a plane parallel to the X-Y plane. A linear reciprocating direction of each abrasive assembly is opposite to that of an adjacent abrasive assembly. | 11-11-2010 |
Wen-Chi Chang, Taoyuan County TW
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20090288032 | ELECTRONIC DEVICE AND USER INTERFACE DISPLAY METHOD THEREOF - An electronic device and a user interface display method thereof are provided. The method includes the following steps. First, organize a plurality of computer programs and a web browser executable on the electronic device into a virtual book. Each page of the virtual book includes a user interface of one of the computer programs or a web page displayed by the web browser. Next, display one of the pages as a current page so that the user interface or the web page of the current page is accessible to a user of the electronic device. Next, display a stand-up view of the virtual book in response to a first operating action performed by the user. The stand-up view includes a plurality of the pages adjacent to the current page and a virtual switch attached to a side of the virtual book. | 11-19-2009 |
20100211881 | METHOD FOR PREPROCESSING AND DISPLAYING WEB PAGE, MOBILE ELECTRONIC DEVICE, AND OPERATION INTERFACE THEREOF - A method for preprocessing and displaying web page, a mobile electronic device, and an operation interface thereof are provided. In the method, an interested web site address corresponding to an update rule is defined. Then, a web page source data of the interested web site address is downloaded according to the update rule. The web page source data or a data structure generated by parsing the web page source data is stored, wherein the data structure can be displayed by the browser. When the interested web site address is selected, the browser parses the web page source data or displays a web content of the interested web site address according to the data structure. By preprocessing the interested web site address concerned by users, the speed of opening the web page content thereof is increased and the efficiency of browsing web page can be significantly improved. | 08-19-2010 |
Wen-Chi Chang, Taoyuan City TW
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20100159908 | Apparatus and Method for Modifying Device Configuration Based on Environmental Information - A system for reconfiguring a mobile device based on environmental input is disclosed. The mobile device uses various components, including camera, microphone, and accelerometer, to gather data about the local environment. The system uses these components, separately or together, to determine the level of activity of the local environment. If the system determines that there is little activity in the local environment for a specified period of time, it enters low presence mode. In low presence mode, the system reconfigures the mobile device. The reconfiguration may include pausing or stopping applications, changing the device's volume settings, redirecting incoming telephone calls or text messages, or deactivating individual hardware components. | 06-24-2010 |
20100159981 | Method and Apparatus for Controlling a Mobile Device Using a Camera - A method and system for using an image sensor to control applications on a mobile device is disclosed. The system uses image processing to detect control gestures by the user. Control gestures may include, for example, moving a hand laterally, moving the hand closer or farther away from the camera, or opening and closing a hand. These control motions are linked to user commands to be executed by the application being controlled. The system initializes by storing a background image showing the field of view of the image sensor before any objects are present. It then detects new objects in the field of view by comparing new images to the background image. If a new object is detected, the system waits until the object is stationary in the field of view. After the object is stationary, the system detects if there is a change in the object indicating a control gesture. After detecting a change in the stationary object, the system determines a set of parameters defining the change and matches the parameters to a user command. The parameters may include the object's change in position or size or change in hand state (e.g. open or closed). The system then passes the command to an application to be executed. | 06-24-2010 |
20100159998 | METHOD AND APPARATUS FOR AUTOMATICALLY CHANGING OPERATING MODES IN A MOBILE DEVICE - A method and system for automatically changing the operating mode of a mobile device in response to changes in positioning or the use of the device includes multiple sensors that provide information relating to the mobile device and its environment. The sensors determine positioning information, incident light intensity, and object proximity and detect the presence of a pointer device. The system monitors the sensors and applications executed by the operating system. Based on the monitoring, the system changes the operating mode of the mobile device. | 06-24-2010 |
20120287315 | Handheld Electronic Device, Dual Image Capturing Method Applying for Thereof, and Computer Program Production for Load into Thereof - A handheld electronic device includes a first lens module, a second lens module, an input unit and a control unit. The first lens module and the second lens module are respectively disposed on the handheld electronic device. The first lens module captures scenes in a first image capturing boundary. The second lens module captures scenes in a second image capturing boundary, which is different from the first image capturing boundary. The input unit is used for receiving a user input for capturing images. When the input unit receives the user input, the control unit controls the first lens module and the second lens module to captures a first image and a second image respectively at the same time. | 11-15-2012 |
Wen-Chi Chang, Taichung Hsien TW
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20080207096 | WIDE BELT SANDER - A wide belt sander has a base, a driving axle, a driving device, a driven axle bracket, a driven axle, a belt and an automatic adjustment device. The driving axle is rotatably mounted on the base and has a central axis. The driving device is mounted on the base and is connected to the driving axle. The driven axle bracket is rotatably mounted on the base along a longitudinal axis perpendicular to the central axis of the driving axle. The driven axle is rotatably mounted on the driven axle bracket along a rotating axis parallel with the central axis of the driving axle. The belt is endlessly mounted around the driving and driven axles. The automatic adjustment device is mounted between the base and the driven axle bracket to drive the driven axle bracket to swing relative to the base in a simple harmonic motion. | 08-28-2008 |
20090163124 | RECIPROCATING LINEAR SANDER - A reciprocating linear sander has a base, at least one abrasive assembly, at least one reciprocating device and a driving device. The base has two sides and a belt. Each abrasive assembly is mounted in the base above the belt and has a rotating axle and an abrasive brush mounted around the rotating axle. The reciprocating device is connected respectively to the abrasive assembly and has a driven axle coaxially connected to the rotating axle of the abrasive assembly to allow the rotating axle to move reciprocatorily and linearly. The driving device is connected to the reciprocating device, drives the rotating axle of the abrasive assembly and has a couple to rotate the driven axle of the reciprocating device. | 06-25-2009 |
Wen-Chi Chang, Taichung TW
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20110144253 | Method for Making a 3D Photonic Crystal - A method for making a 3D photonic crystal includes: (a) preparing a liquid mixture including a solvent component, a particulate material suspended in the solvent component, and a filler suspended or dissolved in the solvent component, with the proviso that, when the filler is suspended in the solvent component, the filler has an average size smaller than an average size of the particulate material; (b) allowing a 3D photonic structure to grow from the liquid mixture; and (c) removing liquid from the 3D photonic structure. The method can further include (d) removing the particulate material from the 3D photonic structure after the step (c). In this case, the particulate material and the filler are made of different materials. | 06-16-2011 |
Wen-Chi Chang, Tucheng City TW
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20110249860 | INTEGRATING AND POSITIONING METHOD FOR HIGH RESOLUTION MULTI-SATELLITE IMAGES - An integrating and positioning method for high resolution multi-satellite images is provided. In the method, direct georeferencing and a Rational Functions Model (RFM) are combined, two heterogeneous mathematical integrating and positioning adjustment models are established, so as to acquire relevant positioning parameters of the direct georeferencing and the RFM, and acquire ground coordinates of ground control points and a strip tie point, and local system errors of the ground coordinates are modified through a least-square collocation method. | 10-13-2011 |
Wen-Chi Chang, New Taipei TW
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20120265494 | Method of Online Building-Model Reconstruction Using Photogrammetric Mapping System - The present invention combines an existing photogrammetric mapping system for building-model reconstruction. Topographic maps and models are produced simultaneously. The models can be edited along with aerial images in an online environment. Thus, efficiency and accuracy for building-model reconstruction are increased. | 10-18-2012 |
Wen-Chi Chang, Taipei TW
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20120275698 | Method of Orthoimage Color Correction Using Multiple Aerial Images - A method for true-orthoimage color correction is provided. Aerial images and digital elevation models (DEMs) are used for balancing colors in orthoimages or true-orthoimages. Seam lines between images are also smoothed. Thus, color distinction between images is rectified and orthoimage quality is greatly enhanced. | 11-01-2012 |
Wen-Chi Chang, New Taipei City TW
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20140169685 | METHOD OF ENHANCING AN IMAGE MATCHING RESULT USING AN IMAGE CLASSIFICATION TECHNIQUE - A method of enhancing an image matching result using an image classification technique is disclosed, comprising the steps of acquiring relatively significantly hidden ones of a plurality of high overlapped close-range images; classifying each of the high overlapped close-range images to obtain a set of overall spectrum difference information over a multiple-spectra range; introducing a local gray level to each of the classified high overlapped close-range images to apply an integrated image matching; and evaluating a matching index by a threshold according to at least two similarity indexes to obtain a 3-dimensional point cloud coordinate position of a conjugate point for each of such images. | 06-19-2014 |