Patent application number | Description | Published |
20100010773 | Sensing System - A sensing system is adapted to sense a pointer and calculate a location of the pointer. The sensing system includes a panel, a reflective element, an image sensor and a processor connected to the image sensor. The panel has a first plane and a first area located at the first plane. The first area is quadrangular and has a first boundary, a second boundary, a third boundary and a fourth boundary connected in order. The reflective element is disposed at the first boundary and located on the first plane. A second plane of the reflective element which is a reflective plane is substantially perpendicular to the first plane and mirrors the first area to form a second area. The image sensor sensing the first and the second areas is disposed at a corner at which the third boundary and the fourth boundary intersects and located on the first plane. | 01-14-2010 |
20100090987 | Sensing System - A sensing system includes a panel, a reflective element, an image sensor, a processor, a first light guide rod, a second light guide rod and a light source module. The panel has a plane and a first area and a third area located at the plane. The third area in the first area is smaller than or equal to the first area. The first area has four boundaries connected in order. A reflective mirror plane of the reflective element disposed at the first boundary mirrors the first and third areas. The image sensor disposed at the intersection of the third and fourth boundaries is electrically connected to the processor. The first and the second light guide rods are disposed at the second and the third boundaries respectively. The light source module is adapted to emit light passing through the first and the second light guide rods to the image sensor. | 04-15-2010 |
20100094586 | Sensing System - A sensing system is adapted to sense a pointer and calculate a location of the pointer. The sensing system includes a panel, a reflective element, an image sensor and a processor connected to the image sensor. The panel has a first plane and a first area located at the first plane. The first area is quadrangular and has a first boundary, a second boundary, a third boundary and a fourth boundary connected in order. The reflective element is disposed at the first boundary and located on the first plane. A second plane of the reflective element which is a reflective mirror plane is substantially perpendicular to the first plane and mirrors the first area to form a second area. The image sensor sensing the first and the second areas is disposed at a corner at which the third boundary and the fourth boundary intersects and located on the first plane. | 04-15-2010 |
20100141963 | Sensing System and Locating Method thereof - A sensing system includes a frame having a first boundary, a second boundary, a third boundary and a fourth boundary and defining a sensing area therein, a light source module for providing light to the sensing area, a first image sensor, a second image sensor, a third image sensor and a mirror component. The first image sensor is disposed between two neighboring ends of the first and second boundaries. The second image sensor is disposed between two neighboring ends of the second and third boundaries. The third image sensor is disposed between two neighboring ends of the first and fourth boundaries. The mirror component is disposed at the fourth boundary. A locating method of the sensing system can determine a location of a pointer accurately and avoid a problem of a blind zone. | 06-10-2010 |
20100156820 | Variable Size Sensing System and Method for Redefining Size of Sensing Area thereof - In a variable size sensing system and a method for redefining the size of a sensing area thereof, the sensing system includes four elements, a mark and two image sensing devices. The four elements are consecutively connected and thereby forming a frame. Two of the four elements have variable lengths so as to adjust the size of the frame. The inner edge of the frame defines a sensing area of a parallelogram shape. The sensing system has a first and a second working mode. The sensing area has a first size and a second size when the sensing system is in the first working mode and the second working mode respectively, wherein the first size is predetermined and smaller than the second size. The mark is used to mark a fixed length. When the sensing system is changed from the first working mode to the second working mode, the mark sensed by the image sensing devices can be utilized to redefine the size of the sensing area in the sensing system. | 06-24-2010 |
20110061950 | Optical Touch Device and Locating Method thereof, and Linear Light Source Module - An optical touch device includes a light guide module including a first light guide component, a second light guide component, a third light guide component and a fourth light guide component, a light source module including a first light emitting component and a second light emitting component for emitting light alternately and an image detecting module disposed between two neighboring ends of the first light guide component and the second light guide component. The third light guide component and the fourth light guide component are mirror light guide components. A field of view of the image detecting module covers the third light guide component and the fourth light guide component. The optical touch device can avoid a blind zone and can be used as a dual-touch device or a multi-touch device. A locating method and a linear source module are also provided. | 03-17-2011 |
20110080363 | TOUCH-CONTROL SYSTEM AND TOUCH-SENSING METHOD THEREOF - An exemplary touch-control system and an exemplary touch-sensing method thereof are provided. The touch-control system comprises a touch-control panel, at least an image sensing apparatus and a processing circuit. The touch-control panel has a touch surface and adopts a touch-sensing structure. The touch-sensing structure comprises at least a plurality of conducting wires paralleled to each other. The image sensing apparatus is used for sensing an image of the touch surface. When two pointers touch the touch surface, the processing circuit acquires the information related to the positions of the pointers in the touch surface by the conducting wires and the processing circuit, so as to acquire the actual touch positions of the pointers according to the sensing results of the two sensing manners. | 04-07-2011 |
20110116104 | Locating Method of Optical Touch Device and Optical Touch Device - A locating method for an optical touch device to calculate a position of a light blocking object is provided. The optical touch device includes a number of image detecting components. Each of the image detecting components includes a number of pixels arranged in a straight line. In the locating method, the pixels of each of the image detecting components are at least divided into a first group and a second group. When the first group detects a dark point caused by the light blocking object, the position of the dark point is calculated using a first calculating method. When the second group detects the dark point, the position of the dark point is calculated using a second calculating method. The locating method can determine the position of the light blocking object accurately. An optical touch device that is suitable for using the locating method is also provided. | 05-19-2011 |
Patent application number | Description | Published |
20100284548 | 3-Point positioning device and method thereof - A 3-point positioning device senses a scene including an auxiliary positioning module by means of an image sensor, and accordingly generates a sensed image. The auxiliary positioning module comprises a first, a second, and a third auxiliary positioning units. By means of the sensed image, the 3-point positioning device recognizes a first, a second, and a third sensing units of the image sensor corresponding to the first, the second, and the third auxiliary positioning units. In this way, the 3-point positioning device can calculate out an absolute location of the auxiliary positioning module according to the locations or the received power of the first, the second, and the third sensing units. | 11-11-2010 |
20120120247 | Image sensing module and optical signal processing device - An image sensing module includes an image sensor and a sensing controller. The image sensor captures an image with a first frequency. The sensing controller determines whether the image sensor has detected an object according to the image. When the sensing controller determines that the image sensor has detected an object, the sensing controller switches the image sensor to capture the image with a second frequency for the image sensor to continuously detect the location of the object. By setting the first frequency higher than the second frequency, the image-sensing module detects the object in real time and the power consumption of the image-sensing module continuously detecting the location of the object is saved as well. | 05-17-2012 |
20140146016 | POSITIONING MODULE, OPTICAL TOUCH SYSTEM AND METHOD OF CALCULATING A COORDINATE OF A TOUCH MEDIUM - A positioning module of calculating a coordinate of a touch medium is disclosed in the present invention. The positioning module includes at least one image detecting unit, a first light source, a second light source and a processor. The image detecting unit includes a lateral side and an upper side. The image detecting unit captures an image reflected from a reflection component. The first light source is disposed on the lateral side and outputs a first beam. The second light source is disposed on the upper side and outputs a second beam. The processor is electrically connected to the image detecting unit. The processor determines a touch status of the touch medium according to a first image generated by the first beam, and further determines a touch coordinate of the touch medium according to a second image generated by the second beam. | 05-29-2014 |
20140146019 | POSITIONING MODULE, OPTICAL TOUCH SYSTEM AND METHOD OF CALCULATING A COORDINATE OF A TOUCH MEDIUM - A method of calculating a coordinate of a touch medium is disclosed in the present invention. The method includes obtaining a first image to determine whether the first image overlaps a first threshold, generating a first interceptive boundary when the first image overlaps the first threshold, obtaining a second image to generate a second interceptive boundary by overlap of the second image and a second threshold, determining whether the first interceptive boundary overlaps the second interceptive boundary, and confirming a status of the touch medium according to determination. | 05-29-2014 |
20140184571 | OPTICAL TOUCH DEVICE AND RELATED IMAGE DETECTING COMPONENT AND LOCATING METHOD - A locating method applied to an optical touch device is disclosed. The optical touch device includes at least one image detecting component for detecting an imaging position of an object and generating a touch position of the object on a plane according to the imaging position. The at least one image detecting component includes a plurality of pixels. The locating method includes dividing the pixels into a first group and a second group along a first direction, analyzing dimension ratios of a darkness point respectively relative to the first group and the second group when the darkness point formed by the object is simultaneously detected by the first group and the second group, and calculating the imaging position of the darkness point inside the image detecting component according to the dimension ratios. | 07-03-2014 |
20140253773 | IMAGE SENSING METHOD AND IMAGE SENSOR UTILIZING THE METHOD - An image sensor, which comprises: an image sensing matrix, comprising at least one image sensing unit, for generating at least one image sensing signal according to a sensed image; an amplifier, for amplifying the image sensing signal to be an amplified image sensing signal according to at least one amplifying parameter; an operational circuit, for computing at least part of brightness of the sensed image sensed by the image sensing unit according to the amplified image sensing signal to generate at least one operational brightness signal; and a control unit, for adjusting the amplifying parameter, such that brightness information generated based on brightness values, which corresponds to the operational brightness signal, falls in a predetermined range. | 09-11-2014 |
20140300582 | IMAGE SENSING METHOD AND IMAGE SENSING APPARATUS - Disclosed is an image sensor comprising: an image sensing unit array, for sensing an object and comprising a plurality of image sensing units arranged in a sensing matrix with M rows and N columns; an image data reading circuit, for reading and outputting image data caught by at least part of the image sensing units; and a control unit, for controlling numbers and locations of the image sensing units for each row or each column, from which the image data reading circuit reads the image data; for computing a read region that is in the image sensing unit array and corresponds to the object; and for controlling the image data reading circuit to read at least part of the image data of the column or the row. The part of the column or the row, which is read, comprises the read region. | 10-09-2014 |
20140340721 | OPTICAL DETECTING DEVICE AND RELATED METHOD OF SYNCHRONIZATION ADJUSTMENT - A method of synchronization adjustment is applied to an optical detecting device, so as to synchronize an exposure timing sequence of an image detector with a light emitting timing sequence of an indicating light source. The method includes acquiring a continued image set, analyzing intensity of each image of the continued image set, and adjusting the exposure timing sequence according to duty cycle of the image detector and intensity ratio of at least two images. An exposure frequency of the image detector is greater than a flickering frequency of the indicating light source. | 11-20-2014 |