| Patent application number | Description | Published |
|---|
| 20080262984 | Field-Programmable Gate Array Based Accelerator System - Accelerator systems and methods are disclosed that utilize FPGA technology to achieve better parallelism and flexibility. The accelerator system may be used to implement a relevance-ranking algorithm, such as RankBoost, for a training process. The algorithm and related data structures may be organized to enable streaming data access and, thus, increase the training speed. The data may be compressed to enable the system and method to be operable with larger data sets. At least a portion of the approximated RankBoost algorithm may be implemented as a single instruction multiple data streams (SIMD) architecture with multiple processing engines (PEs) in the FPGA. Thus, large data sets can be loaded on memories associated with an FPGA to increase the speed of the relevance ranking algorithm. | 10-23-2008 |
| 20090001941 | Inductive Powering Surface for Powering Portable Devices - Systems and methods for an inductive powering surface for powering portable devices are described. In one aspect, a powering device includes the inductive powering surface. The inductive powering surface includes multiple primary coils, an impedance auto-match circuit and other control circuits. The impedance auto-match circuit selectively energizes the primary coils to transfer power via inductive coupling to the secondary coil(s) in a portable device. The impedance auto-match circuit is configured to detect voltage and current phase differences over caused by positioning of the portable device on the inductive powering surface. The impedance auto-match circuit calibrates a power factor of the inductive powering surface to transfer an objectively maximized power load via inductive coupling to the portable device. | 01-01-2009 |
| 20090009469 | Multi-Axis Motion-Based Remote Control - Motion-based control of an electronic device uses an array of at least three reference elements forming a triangle. An image sensor (e.g., a video camera), which may be located on a user-manipulated device, captures an image of the array. The array image has a pattern formed by a nonparallel projection of the reference triangle onto the image sensor. The pattern carries information of the relative position between the image sensor and the reference element array, and changes as the relative position changes. The pattern is identified and used for generating position information, which may express a multidimensional position of the user-manipulated device with respect to three axes describing a translational position, and three rotational axes describing pitch, roll and yaw motions. The control system and method are particularly suitable for videogames. | 01-08-2009 |
| 20100067789 | RECONSTRUCTION OF IMAGE IN A BAYER PATTERN - Architecture for decoding (demosaicing) a source image and performing reconstruction directly from the Bayer pattern to reduce memory size and improve communication bandwidth. The architecture can be easily implemented in hardware such as in field programmable gate arrays (FPGAs) and application-specific integrated circuits (ASICs). | 03-18-2010 |
| 20100076911 | Automated Feature Selection Based on Rankboost for Ranking - A method using a RankBoost-based algorithm to automatically select features for further ranking model training is provided. The method reiteratively applies a set of ranking candidates to a training data set comprising a plurality of ranking objects having a known pairwise ranking order. Each round of iteration applies a weight distribution of ranking object pairs, yields a ranking result by each ranking candidate, identifies a favored ranking candidate for the round based on the ranking results, and updates the weight distribution to be used in next iteration round by increasing weights of ranking object pairs that are poorly ranked by the favored ranking candidate. The method then infers a target feature set from the favored ranking candidates identified in the iterations. | 03-25-2010 |
| 20100076915 | Field-Programmable Gate Array Based Accelerator System - Accelerator systems and methods are disclosed that utilize FPGA technology to achieve better parallelism and processing speed. A Field Programmable Gate Array (FPGA) is configured to have a hardware logic performing computations associated with a neural network training algorithm, especially a Web relevance ranking algorithm such as LambaRank. The training data is first processed and organized by a host computing device, and then streamed to the FPGA for direct access by the FPGA to perform high-bandwidth computation with increased training speed. Thus, large data sets such as that related to Web relevance ranking can be processed. The FPGA may include a processing element performing computations of a hidden layer of the neural network training algorithm. Parallel computing may be realized using a single instruction multiple data streams (SIMD) architecture with multiple arithmetic logic units in the FPGA. | 03-25-2010 |
| 20100201808 | CAMERA BASED MOTION SENSING SYSTEM - Providing camera based motion detection is disclosed herein. A camera may track a reference element array of retroreflectors, which reflect light from a light source located proximate the camera. A known arrangement of the reference element array may be compared to a received arrangement on an image sensor of the camera to determine position information of at least one of the camera or the reference element array. The reference elements may include a style (pattern, shape) that may enable extraction of additional position information when the reference element array is captured by the camera. A user-manipulated device may be configured with the camera and light source, or alternatively, the reference elements, to enable communication with a computing device and display device. | 08-12-2010 |
| 20110298708 | Virtual Touch Interface - A user may issue commands to a computing device by moving a pointer within a light field. Sensors may capture light reflected from the moving pointer. A virtual touch engine may analyze the reflected light captured as light portions in a sequence of images by the sensors to issue a command to a computing device in response to the movements. Analyzing the sequence of images may include finding the light portions in the sequence of images, determining a size of the light portions, and determining a location of the light portions. | 12-08-2011 |
| 20110300940 | Generating Position Information Using a Video Camera - Some implementations provide techniques and arrangements to receive image information. A plurality of reference fields of a user-manipulated device may be identified. Each reference field of the plurality of reference fields may include reference elements. The plurality of reference fields may be identified based on colors of the reference elements, shapes of the reference elements, and/or a pattern of the reference elements. Some implementations may generate position information based on the plurality of reference fields. The position information may identify a position of the user-manipulated device relative to the video camera. Some implementations may provide the position information to an application. | 12-08-2011 |
