Patent application number | Description | Published |
20090009532 | VIDEO CONTENT IDENTIFICATION USING OCR - Systems and methods for processing video content to identify the video content including monitoring the video content for a video overlay added to the video content, identifying a video source of the video content in response to the video overlay, and identifying the video content in response to the video source. | 01-08-2009 |
20100030901 | Methods and Systems for Browser Widgets - Aspects of the present invention are related to systems and methods for providing and managing browser widgets in systems with limited user interface capabilities or computational power. | 02-04-2010 |
20110301426 | Method and device for conditioning display of physiological parameter estimates on conformance with expectations - Method and device for continual physiological monitoring in which the display of physiological parameter estimates is conditioned on conformance of the estimates with expectations. Current estimates of physiological parameters are compared with expectations for the current estimates determined using prior estimates of the physiological parameters. Nonconformance with expectations can result in display of information indicating present unavailability of an estimate for the physiological parameter. The method and device are adaptable for use with various types of monitored physiological parameters and various expectation metrics. | 12-08-2011 |
20110301427 | Acoustic physiological monitoring device and large noise handling method for use thereon - A physiological monitoring device and large noise handling method for use on such a device in which a reliable estimate of a physiological parameter is ensured by identifying and replacing large noise components of a physiological signal prior to estimation. An estimation period for a physiological parameter is segmented into time windows. Noisy time windows within the estimation period are identified. The noisy time windows are replaced with replacement time windows having a baseline amplitude. An estimate of the physiological parameter for the estimation period is calculated using the replacement time windows in lieu of the noisy time windows, and is outputted. If the share of noisy time windows exceeds a predetermined limit share, calculating and/or outputting of an estimate may be precluded. The physiological parameter may be heart rate. | 12-08-2011 |
20110301428 | Lightweight automatic gain control for ambulatory monitoring systems - Lightweight automatic gain control (AGC) methods and systems reduce usage of often scarce computing resources in ambulatory monitoring systems through an AGC algorithm that relies on lightweight calculations and judicious constraints on gain reevaluations and adjustments. Statistical range sampling is used to adjust the gain of a physiological signal to keep the signal within a target amplitude range and may be coupled with dynamic range control to prevent gain adjustments from occurring too frequently. Moreover, gain reevaluations and adjustments may be temporarily suspended when the physiological signal is noisy. | 12-08-2011 |
20110301485 | Data binning method and system for estimating respiratory airflow from body sound signal - Data binning methods and systems for estimating a subject's respiratory airflow from a body sound signal detected by an acoustic sensor on the subject's body. The methods and systems operate in a configuration mode followed by a monitoring mode. In the configuration mode, a body sound signal and respiratory airflow are detected by an on-body acoustic sensor and a spirometer, respectively, over a common time period. Time-aligned body sound signal and respiratory airflow data points are then generated and assigned to bins each spanning a discrete signal range (e.g. discrete signal entropy range or signal amplitude range). Respiratory airflow estimation data (e.g. mean airflow and standard deviation) are then calculated for each bin and an entry for each bin associating the discrete range and the estimation data is stored in a lookup table. Then, in the monitoring mode, the lookup table is accessed using subsequent body sound signal readings (e.g. taken in the field or at home) to provide respiratory airflow estimates without further need for a spirometer. | 12-08-2011 |
20120029298 | Linear classification method for determining acoustic physiological signal quality and device for use therein - Linear classification is used to determine the quality of acoustic physiological signal samples. A feature dataset is extracted from acoustic physiological signal samples of known quality (i.e., weak, noisy, good) acquired over a sampling period. A linear discriminant analysis is performed on the feature dataset to determine a direction of a linear classifier for the feature dataset. A classification error risk analysis is performed on the feature dataset to determine an offset of the linear classifier. The linear classifier is used to classify into reliability classes acoustic physiological signal samples acquired over an operating period. Information is selected for outputting using the assigned classifications, and is outputted. | 02-02-2012 |
20120253214 | Multistage method and system for estimating respiration parameters from acoustic signal - A multistage system and method for estimating respiration parameters from an acoustic signal. At a first stage, the method and system detect and isolate portions of the signal that exhibit long-term, moderate amplitude noise by analyzing cumulative energies in the signal, and portions of the signal that exhibit short-term, high amplitude noise by analyzing peak energies in the signal. At a second stage, the method and system filter heart sound from the signal energy envelope by applying an adaptive filter that minimizes the loss of respiration sound. At a third stage, the system and method isolate respiration phases in the signal by identifying trends in the energy envelope. Once respiration phases are isolated, these phases are used to estimate respiration parameters, such as respiration rate and I/E ratio. | 10-04-2012 |
20120253215 | Dual path noise detection and isolation for acoustic ambulatory respiration monitoring system - Dual path noise detection and isolation for an acoustic respiration monitoring system detects noise in an acoustic signal recording lung sounds using two discrete noise detection techniques. A first technique detects portions of the signal that exhibit long-term, moderate amplitude noise by analyzing cumulative energy in the signal. A second technique detects portions of the signal that exhibit short-term, high amplitude noise by analyzing peak energy in the signal. Noisy portions of the signal are isolated using the combined results of the dual path detection. A respiration parameter is estimated using the signal without resort to the noisy portions and information based at least in part on the respiration parameter is outputted. | 10-04-2012 |
20120253216 | Respiration analysis using acoustic signal trends - The present invention isolates respiration phases in an acoustic signal using trend analysis. Once respiration phases are isolated, they are used to estimate respiration parameters. An exemplary method comprises receiving an acoustic signal recording body sounds; identifying candidate peaks at maxima of the signal; identifying candidate valleys at minima of the signal; selecting significant peaks from among the candidate peaks using heights of the candidate peaks; selecting significant valleys from among the candidate valleys using heights of the candidate valleys; detecting silent phases in the signal based at least in part on rise rates from the significant valleys; isolating respiration phases in the signal based at least in part on the significant valleys and the silent phases; calculating respiration parameter estimates based at least in part on the respiration phases; and outputting the respiration parameter estimates. | 10-04-2012 |
20140289470 | Computing Device Having Optimized File System and Methods for Use Therein - A computing device having an optimized file system and methods for use therein. File system optimizations include sector-aligned writes, anchored cluster searches, anchored index searches, companion caches dedicated to particular file management data types and predictive cache updates, all of which expedite processing on the computing device. The file system optimizations are especially advantageous for data collection systems where an embedded device is tasked with logging to a target memory data received in a continuous data stream and where none of the streamed data is deleted until after the target memory has been offloaded to another device. | 09-25-2014 |
20140343446 | Model-Based Method for Assessing Acoustic Signal Quality in Heart Monitoring Device - A model-based method for assessing acoustic signal quality in a heart monitoring device. The personal heart sound interval distribution of a person being actively monitored is compared with a modeled global heart sound interval distribution shared by most human beings after which processing action is taken consistent with the quality assessment. The error in the best fit between the personal interval distribution and the global interval distribution is presumed to be caused predominantly by noise, allowing the quality of the fit to serve as a proxy for the level of noise in the acoustic signal and used in making processing decisions. | 11-20-2014 |
20150199951 | Noise Event Suppression for Monitoring System - A noise event suppression technique for a monitoring system detects a noise event in a signal waveform when a focal sample in the waveform has an amplitude greater than an amplitude of algorithmically determined earlier and later samples in the waveform that are noncontiguous with the focal sample. When the monitoring system detects the noise event, the monitoring system reduces the amplitude of the focal sample to an amplitude between those of the earlier and later samples. The monitoring system outputs data determined using the waveform once noise events have been adequately suppressed. | 07-16-2015 |
20150208163 | Wearable Physiological Acoustic Sensor - A wearable physiological acoustic sensor has an embedded and stacked acoustic sensing component architecture that inhibits motion-related impulse noise and environmental background noise, and provides good body sound capture, good patient comfort and an unobtrusive presence. The embedded and stacked component architecture also includes an environmental microphone that enables cancellation of background noise for further noise reduction. | 07-23-2015 |
20150272476 | Method and Engine for Defining Respiration Events in Body Sensor Signals - The present invention provides a method and engine for defining respiration events in body sensor signals that are highly accurate and compatible with many different classes of respiration monitoring devices. The present method and engine provide improved respiration event definition through the expedients of dynamic thresholding, segment merging and tail identification. | 10-01-2015 |
Patent application number | Description | Published |
20100106487 | Style-checking method and apparatus for business writing - The method is software-based, and carried out on a computer system and cooperating apparatus. It checks written text for problems impairing clarity, conciseness and reader comfort in business documents. One embodiment includes routines for checking writing style in sentences and paragraphs, and for generating informational, critical and commendatory display indicators relating to reader comfort. The routines check subject and verb juxtaposition, verb strength, prepositional phrase use, transition words, unity-creating constructions, gerund use, and sentence variety. The indicators are displayed in the form of highlighted text and diacritical marks. Another embodiment is a method for quantifying reader discomfort. It includes routines for quantifying, reporting and displaying points indicating comfort-impairing problems of the type located by running the routines of the first embodiment. Yet another embodiment includes a method for editing text documents for reader comfort, by locating and fixing problem words and constructions. | 04-29-2010 |
20100169078 | Style-checking method and apparatus for business writing - The method is software-based, and carried out on a computer system and cooperating apparatus. It checks written text for problems impairing clarity, conciseness and reader comfort in business documents. One embodiment includes routines for checking writing style in sentences and paragraphs, and for generating informational, critical and commendatory display indicators relating to reader comfort. The routines check subject and verb juxtaposition, verb strength, prepositional phrase use, transition words, unity-creating constructions, gerund use, and sentence variety. The indicators are displayed in the form of highlighted text and diacritical marks. Another embodiment is a method for quantifying reader discomfort. It includes routines for quantifying, reporting and displaying points indicating comfort-impairing problems of the type located by running the routines of the first embodiment. Yet another embodiment includes a method for editing text documents for reader comfort, by locating and fixing problem words and constructions. | 07-01-2010 |