Class / Patent application number | Description | Number of patent applications / Date published |
178180090 | Optical | 15 |
20090090569 | Sensing System - A sensing system includes a panel, a reflective element (RE), an image sensor (IS) and a processor electrically connected to the IS. The panel has a plane, a first area (FIA) having the first, second, third and fourth boundaries connected in order and a third area (TA) at the plane. The TA in the FIA is smaller than the FIA. The FIA and TA are quadrilaterals. The RE on the plane is disposed at the first boundary. A reflective mirror plane (RMP) of the RE perpendicular to the plane mirrors the FIA and TA to form a second area (SA) and a fourth area (FOA). The IS sensing the TA and FOA on the plane is disposed at the intersection of the third and fourth boundaries. An imaginary line passing through the IS, being perpendicular to the RMP and being located on the plane is outside the TA and FOA. | 04-09-2009 |
20090159345 | DISPLAY MEDIUM AND WRITING APPARATUS - The present invention provides a display medium which prevents a decrease in reflectance during storage at high temperatures, and a writing apparatus using the display medium. A photoconductive layer | 06-25-2009 |
20090211820 | Optical Operating Apparatus and Method for Determining Operation Motion - An optical operating apparatus includes a soft plate, a transparent supporting plate, a deformable unit, a light source, and an image sensing module. The soft plate is configured for being pressed. The transparent supporting plate is disposed under the soft plate. The deformable unit is disposed between the transparent supporting plate and the soft plate, and has a pattern configuration. The deformable unit deforms as applying an external force on the soft plate and restores after the external force is removed. The light source is configured for providing a light beam to the transparent supporting plate and the deformable unit, and the light beam is reflected by the deformable unit. The image sensing module is arranged on a transmitting path of the light beam reflected by the deformable unit, and a visual field of the image sensing module covers the whole deformable unit. In addition, the present invention also relates to a method for determining operation motion. | 08-27-2009 |
20090283341 | Input device and control method thereof - An input device and a control method thereof are described. The input device includes an optical trace-detecting module, an instruction determining module, and an instruction code transmitting module. A finger moving signal is received by the optical trace-detecting module, an input rotating instruction is judged according to the finger moving signal, and then a rotating instruction code corresponding to an angle is transmitted. | 11-19-2009 |
20100038153 | SYSTEM FOR RECORDING INFORMATION - A system for recording information from a surface. The system includes a base having a surface provided with a first position code coding locations of a plurality of first points and. In a zone of the surface, a second position code codes locations of a plurality of second points. The system also includes a sensing device having an image sensor for obtaining an image of the surface. A processor is configured for determining whether or not the second position code is present in the image of the surface, determining a location by means of the second position code and determining whether the sensing device is placed in a field on the surface of the base, wherein the field is associated with a function to be performed by the sensing device. | 02-18-2010 |
20100071967 | OPTICAL FINGER NAVIGATION DEVICE WITH INTEGRATED TACTILE SWITCH - A system of a tactile switch and an optical navigation device. The system includes a user device. The user device includes an optical finger navigation device. The optical finger navigation device enables a user to control a function of the user device via the optical finger navigation device. The optical finger navigation device includes a circuit board, a sensor array electrically coupled to the circuit board, and a tactile switch electrically coupled to the circuit board. The sensor array detects light and generates a navigation signal that corresponds to the detected light. The tactile switch is physically aligned with the sensor array on the circuit board. The tactile switch generates a switch signal upon actuation of the tactile switch in response to a force on a packaging structure of the sensor array. | 03-25-2010 |
20100101873 | METHOD OF ESTIMATING NIB POSITION USING IMAGES CAPTURED AT DIFFERENT PEN ROTATIONS - A method of estimating a position of nib of a pen relative to an optical sensor mounted on the pen. The method comprises the steps of: (a) placing the nib in contact with a coded surface; (b) capturing, using the sensor, at least two images of the coded surface at different rotations of the pen relative to the surface; (c) determining, from a perspective distortion of the coded surface in each image, an estimated rotation and viewing distance for each image; and (d) estimating, from the estimated rotations and viewing distances, the position of the nib relative to the optical sensor. | 04-29-2010 |
20100163317 | ELECTRONIC DEVICE AND LIGHT EMITTING TOUCHPAD THEREOF - A light emitting touchpad and an electronic device are provided. The light emitting touchpad disposed at a main body of the electronic device includes a light emitting module, a touch control module and a controller. The light emitting module includes a light guiding plate and multiple light emitting elements. The light guiding plate includes multiple blocking walls and multiple light guiding portions. The blocking walls and the light guiding portions are interlacing with each other. Each of the light guiding portions has an incident side. The light emitting elements are disposed beside the incident sides of the light guiding portions. The touch control module is coinciding with the light guiding plate. The controller electrically connected with the light emitting elements and the touch control module controls at least part of the light emitting element to emit light according to an instruction detected by the touch control module. | 07-01-2010 |
20100170725 | TOUCH SURFACE AND SYSTEM AND METHOD OF DETECTING TOUCH INPUT - A system and method for touch detection and a touch-responsive surface are provided. According to one embodiment, a “virtual” touch-sensitive surface in is provided in that a plurality of transmitter-sensor devices receive and calculate a touch by detecting position and movement on a touch surface. The touch surface includes a planar surface; a first transmitter-sensor device located at a first position proximate to the planar surface and a second transmitter-sensor device located at a second position proximate to the planar surface, wherein each of the transmitter-sensors includes a light beam emitter and a scanning micromirror to reflect the light beam across the planar surface. A processing unit is in operable communication with the first transmitter-sensor device and the second transmitter-sensor device, and the processing unit is configured to calculate the position of a touch on the planar surface based on one or more times of refection of the light beams. | 07-08-2010 |
20100187023 | USER INPUT APPARATUS COMPRISING A PLURALITY OF TOUCH SENSORS, AND METHOD OF CONTROLLING DIGITAL DEVICE BY SENSING USER TOUCH FROM THE APPARATUS - A user input apparatus having a plurality of touch sensors is provided. The apparatus includes: a plurality of touch sensors, each of which detects the user's touch and generates touch a sensing signal; a state control unit determining an activated or deactivated state for each of the touch sensors according to an operation mode of the digital device; an optical signal generation unit generating an optical signal that displays the activated or deactivated state of each of the touch sensors; and a touch sensing signal receiving unit receiving the touch sensing signal, the touch sensing signal being generated from a touch sensor in the activated state. | 07-29-2010 |
20100193259 | TOUCH PAD AND A METHOD OF OPERATING THE TOUCH PAD - A touch pad is controlled to detect a location of one or more objects ( | 08-05-2010 |
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 |
20110147102 | OBJECT DETECTION DEVICE - A device for detecting the presence of an object is provided. The device includes a light source, a current controller coupled to the light source, a sensor and a pattern detection engine. The current controller sets to provide the light source with a drive current having a pattern. The sensor is operable to receive light, notably light reflected from an object at the detection area and subsequently generates a signal in response to the light received. The pattern detection engine receives the signal from the sensor and subsequently reports the presence of the object upon determining the presence of the pattern in the signal. The object detection system is further configured to provide a navigation operation when an object is detected at the detection area. | 06-23-2011 |
20110266074 | CAMERA BASED TOUCH SYSTEM - One aspect of the present invention relates to an apparatus for touch detection. In one embodiment, the apparatus includes a touch panel, an imaging device mounted to the touch panel and configured such that when a pointer touches the touch panel, the imaging device acquires an image of the pointer touching the touch panel, and a processor in communication with the imaging device for receiving and processing the acquired image to obtain its bandwidth and its angle relative to the touch panel so as to determine the location of the pointer in the touch panel. | 11-03-2011 |
20120205166 | SENSING SYSTEM - A sensing system includes a complex reflector and an image sensor, in which the complex reflector is disposed on one side of a flat panel. The complex reflector includes a first section and a second section which are stacked, in which the first section provides a mirror image and a real image, and the second section provides a real image. The image sensor is used to capture an image generated by an object when touching a surface of the flat panel, and in the image captured by the image sensor, the object simultaneously generates a first object image in an image region corresponding to the second section and an image region corresponding to the first section, and generates a second object image in the image region corresponding to the first section. | 08-16-2012 |