Patent application number | Description | Published |
20100120362 | METHOD AND SYSTEM FOR QUICK BLUETOOTH LOW ENERGY (BLE) PROTOCOL SIGNAL PRESENCE DETECTION FOR COEXISTENCE - Aspects of the invention may comprise managing operations of BLE interfaces and/or other radio interfaces in a wireless device to mitigate interference to communication via the BLE interfaces by the other radio interfaces. Operating parameters may be communicated between the BLE interfaces and the other radio interfaces to enable mitigating the interference to the BLE interfaces, and at least some of the BLE interfaces and/or the other radio interfaces may be configured based on the communicated operating parameters. The operating parameters may comprise adaptive frequency hopping (AFH) maps that may be adjusted to prevent use of common and/or used channels. The communication device may detect energy associated with BLE communication via scan of all or some of channels used for BLE communication. BLE communication may be predicted based on monitoring of frequency bands used during BLE communication, and/or monitoring of events that may trigger and/or occur during BLE communication. | 05-13-2010 |
20130176271 | ORTHOGONAL MULTI-ROW TOUCH PANEL STIMULATION - Control circuitry for a touch panel includes a touch panel interface, a memory comprising scanning logic, and a controller in communication with the memory and the touch panel interface. The controller is operable, when the scanning logic is executed, to energize a first and a second row in the touch panel simultaneously, a first time; obtain a first signal measurement along a column intersecting the first and second rows; energize the first and the second row in the touch panel simultaneously, a second time; obtain a second signal measurement along the column; and determine a first pixel value and a second pixel value along the column from the first signal measurement and the second signal measurement. | 07-11-2013 |
20130176272 | INTERFERENCE ESTIMATION AND ADAPTIVE RECONFIGURATION OF A CAPACITIVE TOUCH CONTROLLER - Adaptive reconfiguration of a capacitive touch controller is implemented by estimating the interference spectrum of the signal received by the touch controller. The spectrum of the received signal is used to determine a desired frequency, and the touch panel transmitter is configured to use that desired frequency. The spectrum of the received signal is also used to determine an desired filter transfer function. A filter in the touch panel received signal path is configured to use that desired filter transfer function. The adaptive reconfiguration is focused on improving the signal to noise ratio of the received signal without the need for shielding the touch panel, performing additional scans of the touch panel, or using components that operate at higher power levels. | 07-11-2013 |
20130176273 | FAST TOUCH DETECTION IN A MUTUAL CAPACITIVE TOUCH SYSTEM - A method for touch detection in a touch panel display includes entering a low power touch detection mode and intermittently stimulating the touch panel display with signals to determine if any touch event occurs without locating the touch event on the touch panel. If a touch event is detected, a full scan mode is entered to locate the touch event on the touch panel. This provides both faster touch detection and lower power operation for the touch panel display and controller circuit. | 07-11-2013 |
20130176274 | ASYMMETRIC MULTI-ROW TOUCH PANEL SCANNING - Asymmetric scanning logic implements asymmetric panel scanning by scanning some rows on a touch panel more frequently than other rows. Note that although an entire row at a time may be driven, if only particular pixels in the row are of interest (e.g., included in any region of interest for focused asymmetric scanning), then circuitry may power down the receivers for the columns in which the pixels exist to save power. The asymmetric scanning logic facilitates focused attention to specific areas of interest on the touch panel, to compensate, for example, for high noise or low signal strength in those areas of interest. | 07-11-2013 |
20130307632 | Time Base Management System - A time base management system facilitates early analysis, detection, and status messages (e.g., early warnings) concerning the operation of time bases in a device. In addition, the time base management system may adapt the time bases in the device according to the anticipated, selected, or actual operating conditions of the device. As one example, if the time base management system knows that a cell phone will switch to a high data rate (e.g., 4G or LTE) operation mode, the time base management system may configure a time base in the cell phone to operate with increased precision or accuracy, or otherwise meet any applicable time base operational profile for high data rate operation. | 11-21-2013 |
20140313217 | DISPLAY CALIBRATION - A method of compensating for optical distortion on a display panel is provided. The method includes determining one or more pixels in a display that need compensation for optical distortion on a display panel. The method also includes generating a mapping of the display comprising location information of the one or more pixels determined to need optical distortion compensation. The method also includes generating a control signal based on the mapping to control one or more display characteristics of the one or more pixels. The control signal has scaled display values for the one or more display characteristics to reduce the optical distortion on the display panel. The method also includes outputting the control signal to the one or more pixels in the display. | 10-23-2014 |
20150091869 | Orthogonal Multi-Row Touch Panel Stimulation - Control circuitry for a touch panel includes a touch panel interface, a memory comprising scanning logic, and a controller in communication with the memory and the touch panel interface. The controller is operable, when the scanning logic is executed, to energize a first and a second row in the touch panel simultaneously, a first time; obtain a first signal measurement along a column intersecting the first and second rows; energize the first and the second row in the touch panel simultaneously, a second time; obtain a second signal measurement along the column; and determine a first pixel value and a second pixel value along the column from the first signal measurement and the second signal measurement. | 04-02-2015 |