Patent application number | Description | Published |
20080311865 | Transmission scheduling control of average transmit signal power - A method and apparatus for a method of transmitting information is disclosed. The method includes analyzing information to be transmitted. Transmit time durations are set based upon the information to be transmitted. A transmit signal power level is determined based on the transmit time durations, and a predetermined average transmit signal power threshold per predetermined period of time. | 12-18-2008 |
20090010245 | Synchronization of media access control (MAC) superframes - A device and method for of synchronizing a MAC superframe of a wireless device is disclosed. The wireless device can be located within a chain of a plurality of other wireless devices. The method includes receiving beacons from at least one other device during a superframe of the wireless device, determining a superframe offset for each of the other wireless devices based on timing of the received beacons, determining a corrective delay based on the superframe offsets, inserting the corrective delay within a current superframe of the wireless device, and inserting a predictive delay within the current superframe, the predictive delay being determined by an estimate of a difference between a frequency a clock of the wireless device and a frequency of a slowest clock of the other wireless devices within the chain. | 01-08-2009 |
20100098047 | Setting a data rate of encoded data of a transmitter - Embodiments for setting a data rate of encoded data of a transmitter are disclosed. One method includes determining a physical layer transmission rate based on a transmission link quality of a link, estimating a transmission throughput that can be transmitted over the link ensuring a level of Quality of Service (QOS) requirement, and the transmitter adjusting the data rate of the encoded data based on the estimated transmission throughput. | 04-22-2010 |
20110031041 | CIRCULAR SINGLE-LAYER TOUCH SENSORS - A two-dimensional capacitive sensor device comprises a sensor substrate with a plurality of wedge shaped sensor cells arranged in a single-layer circular pattern proximal to the substrate. The plurality of wedge shaped sensor cells are arranged in a rotationally symmetric pattern about a center of the single-layer circular pattern. A sensor cell of the plurality of wedge shaped sensor cells comprises a first sensor electrode and a second sensor electrode separated by a border. The first and second sensor electrodes are configured for detecting changes in capacitance caused by one or more input objects. The first and second sensor electrodes become substantially thinner in width approaching the center of the single-layer circular pattern than at a distance further from the center. A sensor circuitry is communicatively coupled with the sensor electrodes of the sensor cell and the sensor circuitry is configured to interpret the changes in capacitance. | 02-10-2011 |
20110062974 | INPUT DEVICE BASED ON VOLTAGE GRADIENTS - An input device is disclosed, including a first drive electrode comprising a resistive material and a first sense electrode disposed proximate to the first drive electrode. The input device further includes a processing system which is coupled with the first drive electrode and the first sense electrode. In one embodiment, the processing system is configured for electrically driving a first end of the first drive electrode and electrically driving a second end of the first drive electrode to cause a change in a voltage gradient along a length of the first drive electrode. In such an embodiment, the change in the voltage gradient generates a first electrical signal in the first sense electrode. The processing system also acquires a first measurement of the first electrical signal and determines positional information along the length of the first drive electrode based upon the first measurement, wherein the positional information is related to an input object. | 03-17-2011 |
20120120017 | SYSTEM AND METHOD FOR DETERMINING OBJECT INFORMATION USING AN ESTIMATED DEFLECTION RESPONSE - The embodiments described herein provide devices and methods that facilitate improved performance. Specifically, the devices and methods provide the ability to determine object information for objects causing deflection of a surface of a capacitive sensor device. The devices and methods are configured to determine an estimated deflection response associated with a deflection of the at least one sensing electrode using a set of sensor values, where the deflection was caused by one or more objects in contact with the input surface. The estimated deflection response at least partially accounts for effects of capacitive coupling with the object(s) in contact with the input surface, Object information may then be generated using the estimated deflection response. Where the input device is used to direct an electronic system the object information may be used to facilitate a variety of interface actions on a variety of different electronic systems. | 05-17-2012 |
20120146938 | SYSTEM AND METHOD FOR DETERMINING USER INPUT USING POLYGONS - Devices and method are provided that facilitate improved input device performance. Specifically, the systems and methods are configured to identify a portion of an image of sensor values as corresponding to at least one sensed object in the sensing region, determine a polygon corresponding to the identified portion of the image, and determine a contact characterization of the at least one sensed object based on the polygon. The determination of a polygon corresponding to a sensed object facilitates improved contact characterization of the sensed object. For example, the determined polygon may be used to determine if the sensed object is actually more than one object. As a second example, the determined polygon may be used to determine the orientation of the sensed object. In addition, determined polygons may be used to more accurately track changes in the position of the sensed object. | 06-14-2012 |
20120146939 | SYSTEM AND METHOD FOR DETERMINING USER INPUT FROM OCCLUDED OBJECTS - The embodiments described herein provide devices and methods that facilitate improved input devices. In one embodiment, an input device is configured to determine if a sensed object includes an occluded portion using an image representative of sensor values, determine a portion of the image corresponding to the sensed object, and approximate a boundary representation of the sensed object wherein if the sensed object does include the occluded portion, the boundary representation encompasses at least part of the occluded portion of the sensed object and at least part of a non-occluded portion of the sensed object. The determination of a boundary representation corresponding to a sensed object facilitates improved characterization of the sensed object. For example, the determined boundary representation may be used to more accurately track changes in the position of the sensed object as the sensed object moves out of the sensing region. | 06-14-2012 |
20140267143 | SYSTEM AND METHOD FOR A TRANSCAPACITIVE PROXIMITY SENSING DEVICE - A processing system for a transcapacitive input device configured to detect input objects in a sensing region of the input device includes a transmitter module including transmitter circuitry, a receiver module, and a determination module. The transmitter module is configured to simultaneously transmit, using a plurality of transmitter electrodes, a plurality of transmitter signals according to a plurality of significantly non-orthogonal digital codes. At least two codes of the plurality of significantly non-orthogonal digital codes are significantly non-orthogonal. The receiver module is configured to receive, with a plurality of receiver electrodes, a plurality of resulting signals. Each resulting signal of the plurality of resulting signals comprises multiple effects corresponding to multiple transmitter signals of the plurality of transmitter signals. The determination module is configured to determine object information for input in the sensing region using the plurality of resulting signals. | 09-18-2014 |
20150084909 | DEVICE AND METHOD FOR RESISTIVE FORCE SENSING AND PROXIMITY SENSING - Methods, systems and devices are described for operating input device for an electronic system including a pliable component having an input surface and a first plurality of sensor electrodes configured to sense input objects in a sensing region of the input device. The input device also includes a support substrate including at least one second sensor electrode spaced apart from the pliable component, and a patterned force sensitive resistance (FSR) layer disposed between the first plurality of sensor electrodes and the at least one second sensor electrode. | 03-26-2015 |