Abstract: A jig for calibrating a light transceiver module includes a disposition region for the light transceiver module on which the light transceiver module is suitably disposed and an arc structure, which takes the position of the disposition region for the light transceiver module as a circle center thereof and includes reflective regions, light-absorbing regions and a feature region. The reflective regions and light-absorbing regions are alternately arranged, and the feature region is a region for reflection or for absorbing light. When the feature region is the region for reflection, the width of the region for reflection is different from the width of each the reflective region, and when the feature region is the region for absorbing light, the width of the region for absorbing light is different from width of each of the light-absorbing regions. A calibration method is also provided.

Abstract: An optical touch system includes a touch surface, a first light source and a first light-sensing unit. The first light source emits a first light. The first light is reflected at positions on a first section of the touch surface to form a first reference section at the first light-sensing unit. The first light is reflected at positions on a second section of the touch surface to form a second reference section at the first light-sensing unit. The second section is located between the first section and the first light-sensing unit. A touch object reflects the first light between the first section and the second section to produce a first input light region on the first reference section, or reflects the first light between the second section and the first light-sensing unit to produce a second input light region on the second reference section.

Abstract: An optical touch device and a touch detecting method using the same are provided. The optical touch device is suitable for use with a touch surface and includes a control unit and first to fourth optical capturing units. The first to fourth optical capturing units are disposed on a side of the optical touch device close to the touch surface. The first to fourth optical capturing units are respectively disposed at predetermined distances from the touch surface and are disposed based on predetermined angles. A touch covering area of each of the first to fourth optical capturing units is obtained respectively based on the predetermined distance and the predetermined angle. The touch covering area is positively correlated to the predetermined distance. At least one touch point on the touch surface is calculated by the control unit based on optical sensing information captured by the first to fourth optical capturing units.

Abstract: A method for defining effective pixels in an image sensing array of a light-shading optical touch system is proposed. First, light-shading objects are disposed at three end points of a touch panel, and a shaded image is generated by an image sensing array. Light-shading object pixels corresponding to the light-shading objects are obtained from the shaded image thereafter. Next, the light-shading objects are removed from the touch panel, and a non-shaded image is generated by the image sensing array. Three pixel columns corresponding to the end points are obtained from the non-shaded image, and a pixel with maximum intensity is obtained from each of the three pixel columns. Interpolated pixels between the three brightest pixels are obtained through interpolation from the non-shaded image. Image sensing pixels corresponding to the three brightest pixels and the interpolated pixels in the image sensing array are defined as effective pixels.

Abstract: An optical touch apparatus and an optical touch method are disclosed. The optical touch apparatus comprises a touch panel, a first optical sensor, a second optical sensor and a processor. The first optical sensor senses a light pen to output a first sensing signal. The second optical sensor senses the light pen to output a second sensing signal. The processor decides a threshold value according to the second sensing signal, and determines whether the first sensing signal is greater than the threshold value. The processor determines that the light pen touches the touch panel if the first sensing signal is greater than the threshold value.

Abstract: An optical touch control device includes a touch zone, an optical module, including a light source and a sense module for emitting a light signal to a touch object within the touch zone and obtaining an image data of the touch object via the sense module, and a calculation module coupled to the optical module for determining a touch coordinate of the touch object relative to the touch zone according to a pulse of the image data, wherein the pulse comprises a position parameter and a value parameter.

Abstract: An optical touch apparatus including a light source module, two optical sensing modules and a processing unit is provided. The light source module provides a touch light source for a touch area. The optical sensing modules are disposed corresponding to two corners of the touch area. The processing unit is coupled to the light source module and the optical sensing modules, and controls the light source module to provide the touch light source in a first touch mode and a second touch mode and stop providing the touch light source in a third touch mode. Each of the optical sensing modules continuously senses and outputs a plurality of sensing signals. The processing unit determines a plurality of touching features of the sensing signals respectively to calculate positions of a plurality of touching objects on the touch area. An optical touch method is also provided.

Abstract: An optical touch module and a touch detecting method thereof are provided. The optical touch module includes a plurality of sensing components, at least one carrier component and a control unit. The sensing components are configured to sense a touch object located on a touch plane. The carrier component carries and rotates at least one of the sensing components to change sensing directions of the sensing components relative to the touch plane. The control unit is coupled to the sensing components and the carrier component and divides the touch plane into a plurality of regions based on the sensing components. The control unit controls the rotation of the carrier component to change the sensing direction of the at least one sensing component, such that the sensing components sense the regions. The control unit calculates a coordinate of the touch object according to sensing results of the sensing components.

Abstract: A touch apparatus and a correction method thereof are provided. Whether to divide a correction block is determined by calculating distortion error quantity of the correction block, so as to make the distortion error quantity of each divided correction block is less than or equal to a preset threshold. A correction parameter set of each correction block is obtained. Accordingly, in an operation procedure, correction for a touch behavior of a user is executed based on the correction parameter set.

Abstract: An optical touch sensing device and a touch signal determining method thereof are provided. The optical touch sensing device includes a light source module, at least one image capturing element and a processing unit. The light source module disposed on a touch surface provides a detecting light to the touch surface. The image capturing element captures an optical touch data along the touch surface based on the detecting light. The processing unit recognizes the optical touch data according to a recognition threshold to obtain multiple touch signals. When a object spacing between the touch signals is no bigger than a palm spacing, the processing unit compares the covering parameters corresponding to the touch signals to select a largest covering parameter among the covering parameters, and determines whether to ignore the touch signal corresponding to the largest covering parameter according to the largest covering parameter and an area threshold.

Abstract: An optical touch system includes a touch screen; a plurality of light sources for periodically emitting light; a light-emitting element for periodically emitting light when the plurality of light sources are not emitting light; a light-reflecting element, for reflecting light emitted by the plurality of light sources; a plurality of lenses, for capturing a first image during a period when the plurality of light sources are emitting light and capturing a second image during a period when the plurality of light sources are not emitting light; and a processing unit. The processing unit includes a control unit for controlling the plurality of light sources and the light-emitting element; and a computation unit for computing a first location in which the light-emitting element is located and a second location in which the light-reflecting element is located on the touch screen according to the first image and the second image.

Abstract: A touch input system includes a touch surface, a reflective structure, and a touch-position generating device. The reflective structure is disposed to surround the touch surface and protrude out the touch surface. The touch-position generating device includes a pen-like body, a lighting and receiving module disposed in the pen-like body, and a processing module. The lighting and receiving module and the processing module are connected in communication. When the touch input system is in operation, the lighting and receiving module emits light toward the reflective structure and receives the light that is reflected by the reflective structure relative to the touch surface. Then, the processing module determines a touch position of the pen-like body on the touch surface according to the received light. Thereby, the touch-position generating device can perform the determination of the touch position independently from the operation of a touch panel or device providing the touch surface.

Abstract: A touch positioning method is adapted for use on a touch surface of optical identification (OID) technology. The touch surface has thereon multiple positioning marks which define multiple touch areas, and multiple identification patterns, each of which is disposed within a respective touch area and is indicative of a location of the respective touch area. The touch positioning method includes steps of capturing an image of at least one of the touch areas of the touch surface, determining, from among said at least one of the touch areas, a located touch area in which a center point of the image is located, and analyzing the identification pattern which is disposed within the located touch area, so as to obtain the location of the located touch area.

Abstract: A calibrating method applied to an out-cell optical touch device relative to a display panel is disclosed. The calibrating method is suitable for the out-cell optical touch device that includes at least one signal sensor and at least two position sensors. The position sensors are respectively disposed on two adjacent sides of a frame of the out-cell optical touch device. The calibrating method includes acquiring a first value according to dimensions of the display panel, detecting a distance between the frame and sides of the display panel to acquire a second value, utilizing the first value and the second value to obtain an offset, and transforming touch coordinates detected by the signal sensor into screen coordinates applied for the display panel according to the offset.

Abstract: An optical touch system includes two touch devices, two optical sensing devices, and a processing module. When the optical touch system is in use according to an optical touch method, the two touch device are used to touch a touch surface and emit first light and second light with different wavelengths respectively. The two optical sensing devices are disposed at the circumference of the touch surface and individually receive the first light and the second light to generate an optical sensing signal. The processing module receives the two optical sensing signals and determines a touch position on the touch surface for each touch device according to the two optical sensing signals. Therefore, the touching by each touch device is independent, so the optical touch system and the optical touch method can allow touch operations for different purposes to be performed simultaneously.

Abstract: An optical touch device includes an indication plane, two image sensing units and a processing unit. The two image sensing units are disposed at two corners of the indication plane diagonal to each other, respectively, and the two corners define a diagonal line connected therebetween. The processing unit is electrically connected to the two image sensing units. When two touch points are performed on the indication plane, the processing unit determines whether the two touch points are located at opposite sides of the diagonal line, respectively, according to images sensed by the two image sensing units. Once the two touch points are located at opposite sides of the diagonal line, respectively, the processing unit calculates and outputs coordinates of the two touch points immediately according to the images sensed by the two image sensing units.

Abstract: An optical imaging device includes a display panel whereon a coordinate detecting area is formed, at least one light source disposed outside the display panel for emitting light to illuminate an object, and a depth sensor installed on a side of the display panel for sensing image data of the object. The image data include a width information corresponding to a distance between the object and the depth sensor in a first direction, and a depth information corresponding to a distance between the object and the depth sensor in a second direction. The optical imaging device further includes a control module coupled to the depth sensor for receiving the image data sensed by the depth sensor and for determining whether to calculate a coordinate value of the object according to the width information and the depth information.

Abstract: An optical imaging system capable of preventing overexposure includes a display panel, at least one light source, at least one reflective unit, at least one image capturing module and a control module. The at least one image capturing module is disposed on an outer side of the display panel and is spaced from the at least one reflective unit in a predetermined distance. The at least one reflective unit reflects light reflected from a touch object to the at least one image capturing module, and the at least one image capturing module captures the light reflected from the touch object to generate a corresponding touch signal. The control module is coupled to the at least one image capturing module and for calculating a coordinate value of the touch object on a coordinate detecting area of the display panel according to the touch signal.

Abstract: An optical touch system includes a touch screen; a plurality of light sources for periodically emitting light; a light-emitting element for periodically emitting light when the plurality of light sources are not emitting light; a light-reflecting element, for reflecting light emitted by the plurality of light sources; a plurality of lenses, for capturing a first image during a period when the plurality of light sources are emitting light and capturing a second image during a period when the plurality of light sources are not emitting light; and a processing unit. The processing unit includes a control unit for controlling the plurality of light sources and the light-emitting element; and a computation unit for computing a first location in which the light-emitting element is located and a second location in which the light-reflecting element is located on the touch screen according to the first image and the second image.

Abstract: A touch module includes a touch device, a stylus, and a processing unit. The stylus includes a body, a motor, an angle encoder, and a distance sensor. The angle encoder and the distance sensor are disposed on a rotating shaft of the motor. The distance sensor detects relative distances between itself and first, second, third, and fourth sides of a front frame of the touch device respectively. The processing unit is disposed in the body or the touch device for controlling the rotating shaft to rotate when a mark of the body points to the first side, calculating rotating angles of the rotating shaft and determining whether the rotating shaft makes one rotation according to encoded data of the angle encoder, and calculating four local minimum distances according to relationship of the rotating angles and the relative distances for positioning the stylus on a touch surface of the touch device.