| Patent application number | Description | Published |
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| 20110096025 | Projected Capacitive Touch Sensing - Methods, systems, and apparatus relate to touch sensors that are configured to measure input applied to the sensor from a user. Some implementations involve the measurement of changes in capacitance between pairs of adjacent patterned electrodes to detect input at a touch sensor. | 04-28-2011 |
| 20110267501 | SCANNED BEAM DISPLAY AND IMAGE CAPTURE - A method for displaying or capturing an image comprises directing an illumination beam onto a mirror of a highly resonant, mirror-mount system and applying a drive signal to a transducer to deflect the mirror. In this method, the drive signal has a pulse frequency approaching a resonance frequency of the mirror-mount system. The method further comprises reflecting the illumination beam off the mirror so that the illumination beam scans through an area where the image is to be displayed or captured, and, addressing each pixel of the image in synchronicity with the drive signal to display or capture the image. | 11-03-2011 |
| 20110309956 | LOW POWER SENSING VIA RESISTIVE SENSOR MATRIX - Embodiments are disclosed that relate to input devices. In one embodiment, an input device comprises a sensor matrix having first and second pluralities of conductors, a plurality of first resistors, a voltage-applying mechanism configured to apply a selected voltage to each second conductor of the plurality of second conductors, a plurality of sensors, a scanning sensing circuit, and a wake-up sensing circuit. Each first resistor is connected in series between a first voltage and a conductor of the plurality of first conductors. Each sensor includes a switch in series with a matrix resistor, and each sensor is connected to one of the plurality of first conductors and one of the plurality of second conductors. The scanning sensing circuit is connected to each of the plurality of first conductors, and the wake-up sensing circuit is connected to each of the plurality of second conductors. | 12-22-2011 |
| 20120013546 | Capacitive Touch Sensor Having Code-Divided and Time-Divided Transmit Waveforms - Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for digital signal processing (DSP) techniques for generally improving a signal-to-noise ratio (SNR) of capacitive touch sensors. | 01-19-2012 |
| 20120013564 | Capacitive Touch Sensor Having Correlation with a Receiver - Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for digital signal processing (DSP) techniques for generally improving a signal-to-noise ratio (SNR) of capacitive touch sensors. | 01-19-2012 |
| 20120013565 | Techniques for Locally Improving Signal to Noise in a Capacitive Touch Sensor - Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for digital signal processing (DSP) techniques for generally improving a signal-to-noise ratio (SNR) of capacitive touch sensors. | 01-19-2012 |
| 20120038583 | FORCE AND TRUE CAPACITIVE TOUCH MEASUREMENT TECHNIQUES FOR CAPACITIVE TOUCH SENSORS - Methods, systems, and apparatus relate to touch sensors that are configured to measure a true capacitive touch and a force applied to the sensor from a user. Some implementations involve the measurement of force and true capacitive touch simultaneously in a touch capacitive sensor. | 02-16-2012 |
| 20120200522 | Techniques for Disambiguating Touch Data - Techniques for disambiguating touch data and determining user assignment of touch points detected by a touch sensor are described. The techniques leverage both user-specific touch data projected onto axes and non-user-specific touch data captured over a complete area. | 08-09-2012 |
| 20120200523 | Techniques for Disambiguating Touch Data Using User Devices - Techniques for disambiguating touch data and determining user assignment of touch points detected by a touch sensor are described. The techniques leverage both user-specific touch data projected onto axes and non-user-specific touch data captured over a complete area. | 08-09-2012 |
| Patent application number | Description | Published |
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| 20100066567 | RESISTIVE SWITCH MATRIX - Architecture for a keyboard that supports the n-key rollover feature, while being compatible with well established, high volume, inexpensive manufacturing techniques. The design is a matrix design that uses resistors at each key rather than diodes, and employs novel circuits which allow any combination of simultaneous key presses to be detected using this resistive matrix. The resistors can be screen printed on the flexible sheets in a manner similar to the conductors. A resistive keyboard matrix employs circuit techniques that eliminate phantom key presses. The resistors can be created by screen-printing carbon ink. Additionally, various implementations of the decoder circuits can be employed to provide the n-key rollover feature on flexible sheets for inexpensive production. | 03-18-2010 |
| 20100066572 | RESISTIVE SWITCH MATRIX - Architecture for a keyboard that supports the n-key rollover feature, while being compatible with well established, high volume, inexpensive manufacturing techniques. The design is a matrix design that uses resistors at each key rather than diodes, and employs novel circuits which allow any combination of simultaneous key presses to be detected using this resistive matrix. The resistors can be screen printed on the flexible sheets in a manner similar to the conductors. A resistive keyboard matrix employs circuit techniques that eliminate phantom key presses. The resistors can be created by screen-printing carbon ink. Additionally, various implementations of the decoder circuits can be employed to provide the n-key rollover feature on flexible sheets for inexpensive production. | 03-18-2010 |
| 20100242274 | DETECTING TOUCH ON A CURVED SURFACE - Embodiments are disclosed herein that are related to input devices with curved multi-touch surfaces. For example, in one disclosed embodiment, a method of making a multi-touch input device having a curved touch-sensitive surface comprises forming on a substrate an array of sensor elements defining a plurality of pixels of the multi-touch sensor, forming the substrate into a shape that conforms to a surface of the curved geometric feature of the body of the input device, and fixing the substrate to the curved geometric feature of the body of the input device. | 09-30-2010 |
| 20100245246 | DETECTING TOUCH ON A CURVED SURFACE - Embodiments are disclosed herein that are related to input devices with curved multi-touch surfaces. One disclosed embodiment comprises a touch-sensitive input device having a curved geometric feature comprising a touch sensor, the touch sensor comprising an array of sensor elements integrated into the curved geometric feature and being configured to detect a location of a touch made on a surface of the curved geometric feature. | 09-30-2010 |
| 20110099348 | CONTROLLING MEMORY VISIBILITY - Embodiments are disclosed herein that are related to controlling the visibility of a portion of memory in a hardware device. For example, one disclosed embodiment provides a hardware device comprising a communications interface configured to connect to a complementary communications interface on a computing device. The hardware device further comprises a portion of memory having a first ID configured to cause the portion of memory to be visible to a user of the computing device to which the hardware device is connected. Further still, the hardware device comprises instructions stored in the portion of memory which are executable by and transferable to the computing device to cause the installation of a computer program related to the hardware device, and to cause the portion of memory to be hidden from the user of the computing device upon transferring of the instructions to the computing device. | 04-28-2011 |
| Patent application number | Description | Published |
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| 20130278550 | INTERPOLATION OF POSITION OF A STYLUS IN A TOUCH SENSOR - Systems and methods for determining interpolation functions for a stylus position on a sensor matrix and estimating such a position are provided. In one disclosed embodiment, a test apparatus comprises a stylus configured to be positioned on a sensor matrix at each location of a set of known locations. One or more processors are configured to access the touch sensor data corresponding to the set of known locations, where the data is produced in response to positioning the stylus on the sensor matrix at the set of known locations. Stylus location data reflecting the set of known locations is accessed. A stylus position interpolation function is then determined by curve fitting based on the touch sensor data corresponding to the set of known locations and the stylus location data reflecting the set of known locations. | 10-24-2013 |
| 20130342506 | Capacitive Touch Sensor Having Correlation with a Receiver - Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for digital signal processing (DSP) techniques for generally improving a signal-to-noise ratio (SNR) of capacitive touch sensors. | 12-26-2013 |
| 20140168160 | TECHNIQUES FOR DISAMBIGUATING TOUCH DATA USING USER DEVICES - Techniques for disambiguating touch data and determining user assignment of touch points detected by a touch sensor are described. The techniques leverage both user-specific touch data projected onto axes and non-user-specific touch data captured over a complete area. | 06-19-2014 |
| 20140192007 | CAPACITIVE TOUCH SURFACE IN CLOSE PROXIMITY TO DISPLAY - To address the above issues, a display device with a capacitive touch screen display having a touch surface in close proximity to a display stack is provided. The display may include a touch sheet with a top surface, a touch sensor having a matrix of capacitors formed of electrodes positioned below the touch sheet and configured to exhibit a change in capacitance of at least one of the capacitors in response to a touch on the top surface by a digit or stylus of a user, a display stack positioned below the matrix of capacitors and configured to emit light through a top surface of the display stack to travel in a light emitting direction through the matrix of capacitors and the touch sheet. A distance between the top surface of the touch sheet and the top surface of the display stack is between about 225 and 1500 micrometers. | 07-10-2014 |
| 20140267162 | CAPACITIVE TOUCH SENSOR HAVING CODE-DIVIDED AND TIME-DIVIDED TRANSMIT WAVEFORMS - Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for digital signal processing (DSP) techniques for generally improving a signal-to-noise ratio (SNR) of capacitive touch sensors. | 09-18-2014 |
| 20140375902 | CAPACITIVE TOUCH SENSOR HAVING OBLIQUE ELECTRODE MATRIX - Electrode matrices for capacitive touch-sensing are provided. An electrode matrix may include a plurality of column conductors having a first end and a second end formed along a central longitudinal axis. The column conductor may further include a column zigzag structure extending between the first end and the second end. The electrode matrix may further include a plurality of row conductors having a first end and a second end formed along a lateral axis. The row conductor may further include a row zigzag structure extending between the first end and second end. The zigzag structure of each of the plurality of column conductors may cross the zigzag structure of each of the plurality of row conductors in respective crossing regions that are formed at an intersection of the longitudinal axis of each column conductor and lateral axis of each row conductor. | 12-25-2014 |
| 20140375903 | CAPACITIVE TOUCH SENSOR HAVING PSEUDO JUMPERS - Electrode matrices for capacitive touch-sensing are provided. An electrode matrix may include a plurality of electrodes separated by gaps. Each electrode may include a plurality of spaced apart conductors electrically connected at opposed ends by respective tie structures. The conductors of each electrode may be electrically bridged at intervals by a plurality of jumpers. The electrode matrix may further include a plurality of pseudo jumpers positioned within the gaps and configured to be non-conductive across their entire lengths. | 12-25-2014 |
