| Patent application number | Description | Published |
|---|
| 20090189878 | LIGHT-BASED TOUCH SCREEN - A light-based touch screen, including a housing for a display screen, a plurality of infra-red light emitting diodes (LEDs), fastened on the housing, for generating light beams, at least one LED selector, fastened on the housing and connected with the plurality of LEDs, for controllably selecting and deselecting one or more of the plurality of LEDs, a plurality of photodiode (PD) receivers, fastened on the housing, for measuring light intensity, at least one PD selector, fastened on the housing and connected with the plurality of PD receivers, for controllably selecting and deselecting one or more of the plurality of PD receivers, an optical assembly, fastened on the housing, for projecting light beams emitted by the plurality of LEDs in substantially parallel planes over the housing, and a controller, fastened on the housing and coupled with the plurality of PD receivers, (i) for controlling the at least one LED selector, (ii) for controlling the at least one PD selector, and (iii) for determining therefrom position and velocity of an object crossing at least one of the substantially parallel planes, based on output currents of the plurality of PD receivers. | 07-30-2009 |
| 20100017872 | USER INTERFACE FOR MOBILE COMPUTER UNIT - A computer readable medium storing a computer program with computer program code, which, when read by a mobile computer unit, allows the computer to present a user interface for the mobile computer unit. The user interface includes a touch sensitive area in which a portion of a first window and a portion of a second window are displayed. The user scrolls the first window when an object touches a corresponding location in the touch sensitive area at which the first window is displayed, and scrolls the second window when an object touches a corresponding location in the touch sensitive area at which the second window is displayed. The user interface displays a plurality of keys which are selected when an object touches a corresponding key location and are activated when the object applies additional pressure to the corresponding key location. Alternatively, the key is activated when an object touches its corresponding location. The user interface presents keys in a manner facilitating entry of Chinese characters using stroke and Pinyin input. | 01-21-2010 |
| 20100238138 | OPTICAL TOUCH SCREEN SYSTEMS USING REFLECTED LIGHT - A touch screen system, including a near-infrared transparent screen including a plurality of reflective elements embedded therein, a circuit board including circuitry for controlled selective activation of electronic components connected thereto, at least one light source connected to the circuit board, for emitting light, and at least one light detector connected to the circuit board, for detecting light emitted by the at least one light source and reflected by the reflective elements. | 09-23-2010 |
| 20100238139 | OPTICAL TOUCH SCREEN SYSTEMS USING WIDE LIGHT BEAMS - A touch screen system, including a screen, a plurality of light sources coupled with the screen, for emitting light, a plurality of photo diodes coupled with the screen, for detecting the light emitted by the light sources, and for identifying the location of a touch on the screen when an absence of the emitted light is detected, and a plurality of lenses coupled respectively with the plurality of light sources to generate wide beams of light over a portion of the screen wherein substantially connected areas of the screen are covered by neighboring wide beams. | 09-23-2010 |
| 20110131061 | Hospital Patient Chart and Database - An enhanced Livescribe® pen is disclosed and incorporated into a patient record database system. A physician writes patient records on Livescribe® dot paper and the patient records are converted into digital data and transmitted wirelessly to a remote server. The enhanced Livescribe® pen includes an RFID tag reader that reads a patient RFID tag every time a new record in written. The patient ID is transmitted together with the converted written patient records to the remote server. | 06-02-2011 |
| 20110163998 | LIGHT-BASED TOUCH SCREEN WITH SHIFT-ALIGNED EMITTER AND RECEIVER LENSES - A touch screen including a housing, a display mounted in the housing, a plurality of collimating lenses mounted in the housing along two opposite edges of the display and arranged along the two edges so as to be shift-aligned relative to one another, a plurality of light pulse emitters mounted in the housing that are spaced apart from and transmit light pulses through the collimating lenses of one of the two edges over the display, a plurality of light pulse receivers mounted in the housing that are spaced apart from and receive the light pulses through the collimating lenses of the opposite of the two edges, and a calculating unit, mounted in the housing and connected to the receivers, that determines a location of a pointer on the display that partially blocks the light pulses transmitted by the emitters, based on outputs of the receivers. | 07-07-2011 |
| 20110167628 | COMPONENT BONDING USING A CAPILLARY EFFECT - A method of attaching a component to a substrate, including providing a component guide attached to a substrate, the component guide having a cavity substantially conforming to contours of a portion of a component, attaching a first solder pad to the component, inserting the component into the guide cavity, providing a second solder pad, offset from the first solder pad and near the cavity, and inserting the component, the component guide and the substrate into an oven heating the solder pads, wherein the component is drawn further into the guide cavity by a capillary effect of the heated solder pads. | 07-14-2011 |
| 20110169780 | METHODS FOR DETERMINING A TOUCH LOCATION ON A TOUCH SCREEN - A method of determining a touch coordinate on a touch screen, including providing a display, a plurality of collimating lenses along two opposite edges of the display, the collimating lenses being arranged along the two edges so as to be shift-aligned relative to one another, a plurality of light pulse emitters that transmit light pulses through the collimating lenses of a first of the two edges over the display, and a plurality of light pulse receivers that receive the light pulses through the collimating lenses of the opposite of the two edges, and that output values representing the received light pulses, wherein light pulses emitted by each emitter are detected by at least two of the receivers, wherein each receiver detects light pulses emitted by at least two emitters, and wherein each receiver has expected values for emitter-receiver pairs when light pulses are not blocked, selecting receiver output values for emitter-receiver pairs that deviate significantly from corresponding receiver expected values, wherein the selected values indicate at least that light pulses transmitted by two emitters are blocked from reaching one receiver, or that light pulses transmitted by one emitter are blocked from reaching two receivers, associating a screen coordinate along a first screen axis with each selected receiver output, and calculating a touch coordinate by interpolating the associated screen coordinates according to the respective deviations between the selected receivers' output values and corresponding expected values. | 07-14-2011 |
| 20110169781 | TOUCH SCREEN CALIBRATION AND UPDATE METHODS - A method of calibrating optical components in a light-based touch screen, including providing (i) a display, (ii) a row of light pulse emitters that sequentially transmit light pulses over the display according to calibrated pulse current and pulse duration controls, and (iii) a row of light pulse receivers that receive the light pulses and that output values representing the received light pulses, each receiver having expected values for emitter-receiver pairs when the light pulses are not blocked, determining if each receiver output value for a receiver-emitter pair is within a respective designated range from the corresponding receiver expected value, and when a receiver output value for a receiver-emitter pair is outside the designated range, recalibrating the emitter, including adjusting at least one of the emitter pulse current and pulse duration such that subsequent receiver output values are within the designated range, and updating the receiver expected value for the receiver-emitter pair based on subsequent output values of the receiver. | 07-14-2011 |
| 20110169782 | OPTICAL TOUCH SCREEN USING A MIRROR IMAGE FOR DETERMINING THREE-DIMENSIONAL POSITION INFORMATION - A touch screen system including a reflective display surface, a camera mounted so as to capture an image of (i) the reflective display surface, (ii) a pointer approaching the reflective display surface, and (iii) a reflection of the pointer on the reflective display surface, and a processor coupled with the camera that determines a three-dimensional location of the pointer relative to the reflective display surface, based on the positions of the pointer and the reflection of the pointer in the image captured by the camera. | 07-14-2011 |
