Patent application number | Description | Published |
20100307507 | POINT-OF-CARE PATHOGEN MONITORING DEVICES AND SYSTEMS - Various embodiments of a secretion collection and/or sample analysis device are provided for point-of-care collection and/or analysis of secretions collected from the airways of intubated patients. The disclosed embodiments include a variety of placements of the device with respect to a tracheal tube that include in a secretion reservoir, between an evacuation conduit and the secretion reservoir, and connected in series after the evacuation conduit and the secretion reservoir. Certain embodiments may include a lab-on-a-chip device that analyzes secretions via polymerase chain reaction (PCR) based DNA sequencing. | 12-09-2010 |
20100307508 | ENDOTRACHEAL TUBE WITH DEDICATED EVACUATION PORT - Various embodiments of a tracheal tube capable of suctioning accumulated mucus secretions from the airway of intubated patients are provided. Disclosed embodiments include a variety of endrotracheal tubes with integral suction lumens terminating in ports optimally located at the distal end of the endrotracheal tubes between a Murphy's Eye and a cuff. During intubation, the foregoing features, among others, of the tracheal tube may have the effect of preventing bacterial colonization of the respiratory airway and the subsequent development of ventilator associated pneumonia (VAP) in the lungs. | 12-09-2010 |
20110041849 | SYSTEMS AND METHODS FOR CONTROLLING A VENTILATOR - A method and system for controlling a ventilator is disclosed. Oxygen saturation values from pulse oximeters may be used to adjust the settings of a ventilator. Multiple sensors and multiple oxygen saturation values in a fault tolerant pulse oximeter configuration may be used to provide a backup value or confidence measure, thereby increasing reliability and patient safety. | 02-24-2011 |
20110112379 | SYSTEMS AND METHODS FOR PROVIDING SENSOR ARRAYS FOR DETECTING PHYSIOLOGICAL CHARACTERISTICS - Systems and methods for determining physiological parameters of a subject using a sensor array. In an embodiment, a sensor array may contain sensor elements for determining multiple physiological parameters. A combination of sensor elements and the physiological parameters determined may be selected based on signals obtained from the sensor elements of the sensor array. A sensor array may be connected to a monitoring device that may select an optimal sensor element or combination of sensor elements and one or more physiological parameters to be determined. The monitoring device may then determine physiological parameters using the selected combination of sensor elements and display information associated with the parameters on a monitor for use, for example, in monitoring a medical patient. | 05-12-2011 |
20110112382 | SYSTEMS AND METHODS FOR COMBINED PHYSIOLOGICAL SENSORS - Systems and methods are provided for monitoring the physiological state of a subject. One or more physiological parameters of a subject may be determined from a photoplethysmograph (PPG) signal or signals obtained using at least one PPG sensor. In some embodiments, an electrical physiological signal (EPS) sensor may be located in or near a PPG sensor. A sensor configuration including both PPG sensors and EPS sensors may be advantageously used to detect a PPG signal or signals in combination with one or more EPS signal or signals. To reduce potential interference between an EPS sensor and a PPG sensor, fiber-optic input and output lines may be used to transmit optical signals from light generating circuitry and light detecting circuitry. In some embodiments, the generating and detecting circuitry may be located remotely from one another and may further be located remotely from the EPS sensor, PPG sensor, or both. | 05-12-2011 |
20110112387 | SIMULTANEOUS MEASUREMENT OF PULSE AND REGIONAL BLOOD OXYGEN SATURATION - Methods and systems are provided that allow for the simultaneous calculation of pulse and regional blood oxygen saturation. An oximeter system that includes a sensor with a plurality of emitters and detectors may be used to calculate a pulse and/or regional blood oxygen saturation. A plurality of light signals may be emitted from light emitters. A first light signal may be received at a first light detector and a second light signal may be received at a second light detector. A pulse and/or regional blood oxygen saturation value may be calculated based on the received first and/or second light signals. The pulse and regional blood oxygen saturation values may be calculated substantially simultaneously. The calculated pulse and regional blood oxygen saturation values as well as other blood oxygen saturation values may be displayed simultaneously in a preconfigured portion of a display. | 05-12-2011 |
20110190600 | COMBINED PHYSIOLOGICAL SENSOR SYSTEMS AND METHODS - A combined physiological sensor and methods for detecting one or more physiological characteristics of a subject are provided. The combined sensor (e.g., a forehead sensor) may be used to detect and/or calculate at least one of a pulse blood oxygen saturation level, a regional blood oxygen saturation level, a respiration rate, blood pressure, an electrical physiological signal (EPS), a pulse transit time (PTT), body temperature associated with the subject, a depth of consciousness (DOC) measurement, any other suitable physiological parameter, and any suitable combination thereof. The combined sensor may include a variety of individual sensors, such as electrodes, optical detectors, optical emitters, temperature sensors, and/or other suitable sensors. The sensors may be advantageously positioned in accordance with a number of different geometries. The combined sensor may also be coupled to a monitoring device, which may receive and/or process one or more output signals from the individual sensors to display information about the medical condition of the subject. In addition, several techniques may be employed to prevent or limit interference between the individual sensors and their associated input and/or output signals. | 08-04-2011 |
20120071739 | WAVELENGTH SWITCHING FOR PULSE OXIMETRY - The present disclosure describes techniques that may provide more accurate estimates of arterial oxygen saturation using pulse oximetry by switching between a wavelength spectrum of at least a first and a second light source so that the arterial oxygen saturation estimates at low (e.g., in the range below 75%), medium (e.g., greater than or equal to 75% and less than or equal to 84%), and high (e.g., greater than 84% range) arterial oxygen saturation values are more accurately calculated. In one embodiment, light emitted from a near 660 nm and a near 900 nm emitter pair may be used when the arterial oxygen saturation range is high. In another embodiment, light emitted from a near 730 nm and a near 900 nm emitter pair may be used when the arterial oxygen saturation range is low. In yet another embodiment, light emitted from both a near 660 nm-900 nm emitter pair and light emitted from a near 730 nm-900 nm emitter pair may be used when the arterial oxygen saturation range is in the middle range. Priming techniques may also be used to reduce or eliminate start up delays of certain oximetry system components. | 03-22-2012 |
20120203087 | SYSTEMS AND METHODS FOR MONITORING DEPTH OF CONSCIOUSNESS - During patient monitoring, a depth of consciousness (DOC) measure, such as a bispectral index, may be used in conjunction with additional information obtained from an awareness metric derived from one or more physiological signals, such as a photoplethysmograph signal. In an embodiment, a DOC measure may be combined with information from an awareness metric to produce a combined DOC measure. In an embodiment, information from an awareness metric derived from one or more physiological signals may be used to provide an indication of confidence in a DOC measure. In an embodiment, a DOC measure may be used to provide an indication of confidence in a depth of consciousness assessment based on an awareness metric. In an embodiment, one or the other of a DOC measure and an awareness metric may be used to provide an indication of a patient's depth of consciousness (e.g., by one “overriding” the other). | 08-09-2012 |
20120215082 | METHOD AND APPARATUS FOR NONINVASIVE BLOOD PRESSURE MEASUREMENT USING PULSE OXIMETRY - Embodiments of the present disclosure relate to a system and method for determining a physiologic parameter of a patient. Specifically, embodiments provided herein include blood pressure cuffs that are adapted to be used in conjunction with a photoplethysmography sensor. The cuff as provided may be configured to be placed over the sensor and/or aligned in a specific manner relative to the sensor. Alternatively, the cuffs may include integral optical components. | 08-23-2012 |
20120215118 | PATTERN OF CUFF INFLATION AND DEFLATION FOR NON-INVASIVE BLOOD PRESSURE MEASUREMENT - Embodiments of the present disclosure relate to a system and method for determining a physiologic parameter of a patient. Specifically, embodiments provided herein include methods and systems for non-invasive determination of blood pressure. Information from a photoplethysmography sensor may be used to determine a systolic pressure, which in turn may be used to control a deflation pattern of a blood pressure cuff. | 08-23-2012 |
20120248985 | MEDICAL SENSOR WITH TEMPERATURE CONTROL - Embodiments of the present disclosure relate to techniques for controlling the temperature of light sources within physiological sensors in order to regulate the wavelengths emitted by the light sources. The sensors may include a temperature control element that is designed to provide heating and/or cooling to the light sources. The sensors also may include a temperature sensor designed to detect the temperature of the light sources. Based on the detected temperature, a controller can vary the amount of heating and/or cooling provided by the temperature control element to maintain the temperature of the light sources at a desired temperature or within a desired temperature range. | 10-04-2012 |
20120253151 | Multiple Wavelength Pulse Oximetry With Sensor Redundancy - Systems and method are provided that enable a spectrophotometric system to obtain reasonably reliable measurements even in situations when some of the emitters included in a sensor system have become inoperable. In certain embodiments, the spectrophotometric system may include two or more light emitters. The light emitters may be used to derive measurements suitable for pulse oximetry, hemometry, and/or aquametry. The failure of one or more of the emitters may still allow for the derivation of certain measurements by using the emitters that remain in an operational state. | 10-04-2012 |
20130109941 | METHODS AND SYSTEMS FOR PHOTOACOUSTIC SIGNAL PROCESSING | 05-02-2013 |
20130109949 | METHODS AND SYSTEMS FOR PHOTOACOUSTIC SIGNAL PROCESSING | 05-02-2013 |
20130137959 | METHODS AND SYSTEMS FOR PHOTOACOUSTIC MONITORING USING INDICATOR DILUTION - A patient monitoring system may provide photoacoustic sensing based on an indicator dilution to determine one or more physiological parameters of a subject. The system may detect an acoustic pressure signal, which may include one or more thermo-dilution responses, one or more hemo-dilution responses, or a combination thereof, using one or more sensor units. The system may use multiple light sources and/or detectors to diagnose and/or improve signal to noise ratio, distinguish between arterial and venous signals, prevent under-sampling, and separate the effects of hemo-dilution and thermo-dilution. | 05-30-2013 |
20130137960 | METHODS AND SYSTEMS FOR PHOTOACOUSTIC MONITORING USING INDICATOR DILUTION - A patient monitoring system may provide photoacoustic sensing based on an indicator dilution to determine one or more physiological parameters of a subject. The system may detect an acoustic pressure signal, which may include one or more thermo-dilution responses, one or more hemo-dilution responses, or a combination thereof, using one or more sensor units. The system may use multiple light sources and/or detectors to diagnose and/or improve signal to noise ratio, distinguish between arterial and venous signals, prevent under-sampling, and separate the effects of hemo-dilution and thermo-dilution. | 05-30-2013 |
20130144147 | METHODS AND SYSTEMS FOR PHOTOACOUSTIC MONITORING USING INDICATOR DILUTION - A patient monitoring system may provide photoacoustic sensing based on an indicator dilution to determine one or more physiological parameters of a subject. The system may detect an acoustic pressure signal, which may include one or more thermo-dilution responses, one or more hemo-dilution responses, or a combination thereof. For example, a thermo-dilution indicator and/or a hemo-dilution indicator may be used to determine one or more hemodynamic parameters. In a further example, an isotonic indicator and a hypertonic indicator may be used to determine one or more hemodynamic parameters of the subject. | 06-06-2013 |
20130144148 | METHODS AND SYSTEMS FOR PHOTOACOUSTIC MONITORING USING INDICATOR DILUTION - A patient monitoring system may provide photoacoustic sensing based on an indicator dilution to determine one or more physiological parameters of a subject. The system may detect an acoustic pressure signal, which may include one or more thermo-dilution responses, one or more hemo-dilution responses, or a combination thereof. For example, a thermo-dilution indicator and/or a hemo-dilution indicator may be used to determine one or more hemodynamic parameters. In a further example, an isotonic indicator and a hypertonic indicator may be used to determine one or more hemodynamic parameters of the subject. | 06-06-2013 |
20130184555 | ORAL CAVITY MOUNTED PHOTOACOUSTIC SENSING UNIT - An oral cavity mounted photoacoustic sensing unit is disclosed. The sensing unit may include a light source, a photoacoustic detector, and a support assembly. The support assembly may be configured such that the light source and the photoacoustic detector are fixably located relative to the buccal or sublingual tissue of a subject. | 07-18-2013 |
20130190589 | MULTIPLE PEAK ANALYSIS IN A PHOTOACOUSTIC SYSTEM - A physiological monitoring system may use photoacoustic sensing to determine one or more physiological parameters of a subject. A photoacoustic signal generated in response to a photonic signal may include multiple peaks as a result of multiple blood vessels and other structures below the surface of the skin of a subject. A photoacoustic system may identify a first and second peak in the photoacoustic signal and determine values from the peaks indicative of physiological parameters. Physiological parameters, such as venous oxygen saturation and arterial oxygen saturation, may be determined based on the values. | 07-25-2013 |
20130225952 | SYSTEM AND METHOD FOR STORING AND PROVIDING PATIENT-RELATED DATA - According to various embodiments, a regional oximetry sensor may include a light emitting element configured to emit light, a light detector configured to receive the light, and a memory device configured to store a baseline. The baseline stored by the memory device enables a regional oximetry monitor to display the baseline on a display of the regional oximetry monitor. | 08-29-2013 |
20130286379 | COMBINED LIGHT SOURCE PHOTOACOUSTIC SYSTEM - A physiological monitoring system may use photoacoustic sensing to determine one or more physiological parameters of a subject. The photoacoustic system may use two light sources (e.g., a high power pulsed laser diode and a continuous wave laser diode) to generate acoustic pressure signals in a subject. One or more light sources (e.g., the high powered pulsed laser diode) may provide a high signal-to-noise ratio. The high signal-to-noise ratio signals may provide high sensitivity for physiological measurements (e.g., cardiac output and temperature measurements). The photoacoustic system may use high powered light sources in combination with other light sources to improve physiological measurements. | 10-31-2013 |
20130294969 | Wireless, Reusable, Rechargeable Medical Sensors and System for Recharging and Disinfecting the Same - Embodiments described herein may include systems and method for monitoring physiological parameters of a patient. Specifically, embodiments disclose wireless, reusable, rechargeable medical sensors that include an inductive coil coupled to a rechargeable battery. Additionally, embodiments disclose systems and methods for recharging and disinfecting the disclosed medical sensors. | 11-07-2013 |
20130296669 | Wireless, Reusable, Rechargeable Medical Sensors and System for Recharging and Disinfecting the Same - Embodiments described herein may include systems and method for monitoring physiological parameters of a patient. Specifically, embodiments disclose wireless, reusable, rechargeable medical sensors that include an inductive coil coupled to a rechargeable battery. Additionally, embodiments disclose systems and methods for recharging and disinfecting the disclosed medical sensors. | 11-07-2013 |
20130296670 | Wireless, Reusable, Rechargeable Medical Sensors and System for Recharging and Disinfecting the Same - Embodiments described herein may include systems and method for monitoring physiological parameters of a patient. Specifically, embodiments disclose wireless, reusable, rechargeable medical sensors that include an inductive coil coupled to a rechargeable battery. Additionally, embodiments disclose systems and methods for recharging and disinfecting the disclosed medical sensors. | 11-07-2013 |
20140020682 | ENDOTRACHEAL TUBE WITH DEDICATED EVACUATION PORT - Various embodiments of a tracheal tube capable of suctioning accumulated mucus secretions from the airway of intubated patients are provided. Disclosed embodiments include a variety of endotracheal tubes with integral suction lumens terminating in ports optimally located at the distal end of the endotracheal tubes between a Murphy's Eye and a cuff. During intubation, the foregoing features, among others, of the tracheal tube may have the effect of preventing bacterial colonization of the respiratory airway and the subsequent development of ventilator associated pneumonia (VAP) in the lungs. | 01-23-2014 |
20140049770 | DETERMINING ABSORPTION COEFFICIENTS IN A PHOTOACOUSTIC SYSTEM - A physiological monitoring system may use photoacoustic sensing to determine physiological information of a subject. The photoacoustic monitoring system may use a light source, such as a modulated continuous wave laser diode, to provide a frequency modulated photonic signal (e.g., a chirp signal) to the subject. An acoustic detector may be used to detect an acoustic pressure signal from the subject. The acoustic pressure signal may include two components corresponding to two wavelengths of light in the photonic signal. A signal ratio may be calculated based on the two components. The photoacoustic monitoring system may use the signal ratio to calculate one or more absorption coefficients. The photoacoustic monitoring system may use the one or more absorption coefficients to determine additional physiological information such as hemoglobin concentration, blood oxygen saturation, and temperature. | 02-20-2014 |
20140056757 | Wireless, Reusable, Rechargeable Medical Sensors and System for Recharing and Disinfecting the Same - Embodiments described herein may include systems and method for monitoring physiological parameters of a patient. Specifically, embodiments disclose wireless, reusable, rechargeable medical sensors that include an inductive coil coupled to a rechargeable battery. Additionally, embodiments disclose systems and methods for recharging and disinfecting the disclosed medical sensors. | 02-27-2014 |
20140073886 | SIMULTANEOUS MEASUREMENT OF PULSE AND REGIONAL BLOOD OXYGEN SATURATION - Methods and systems are provided that allow for the simultaneous calculation of pulse and regional blood oxygen saturation. An oximeter system that includes a sensor with a plurality of emitters and detectors may be used to calculate a pulse and/or regional blood oxygen saturation. A plurality of light signals may be emitted from light emitters. A first light signal may be received at a first light detector and a second light signal may be received at a second light detector. A pulse and/or regional blood oxygen saturation value may be calculated based on the received first and/or second light signals. The pulse and regional blood oxygen saturation values may be calculated substantially simultaneously. The calculated pulse and regional blood oxygen saturation values as well as other blood oxygen saturation values may be displayed simultaneously in a preconfigured portion of a display. | 03-13-2014 |
20140073889 | SYSTEMS AND METHODS FOR DETERMINING FLUID RESPONSIVENESS - A system is provided including a ventilator detection module, a circulatory detection module, and an analysis module. The ventilator detection module is configured to detect ventilator information representative of a ventilation activity. The circulatory detection module is configured to detect circulatory information representative of the circulation of the patient. The analysis module is configured to obtain a ventilator waveform based at least in part on the ventilator information, obtain a circulatory waveform based at least in part on the circulatory information, combine the ventilator waveform and the circulatory waveform to provide a mixed waveform, and isolate a portion of the mixed waveform to identify a ventilator responsiveness waveform representative of an effect of the ventilator. | 03-13-2014 |
20140073890 | SYSTEMS AND METHODS FOR DETERMINING FLUID RESPONSIVENESS - A system is provided including a respiratory detection module, a circulatory detection module, and an analysis module. The respiratory detection module is configured to detect respiratory information representative of respiration of a patient. The circulatory detection module configured to detect circulatory information representative of circulation of the patient. The analysis module is configured to obtain a respiratory waveform based at least in part on the respiratory information, obtain a circulatory waveform based at least in part on the circulatory information, combine the respiratory waveform and the circulatory waveform to provide a mixed waveform, and isolate a portion of the mixed waveform to identify a respiratory responsiveness waveform representative of an effect of the respiration of the patient on the mixed waveform. | 03-13-2014 |
20140073900 | SYSTEM AND METHOD FOR MEASURING CARDIAC OUTPUT - Embodiments of the present disclosure relate to a system and method for non-invasively determining a cardiac output of a patient that may include a photoacoustic sensor and a determination of oxygen uptake of the patient. Specifically, a signal from a photoacoustic sensor may be used to determine a mixed venous and an arterial oxygen saturation of the patient. The parameters of mixed venous and arterial oxygen saturation in conjunction with oxygen uptake may be used to calculate cardiac output using the Fick method. | 03-13-2014 |
20140083426 | SYSTEMS AND METHODS FOR CONTROLLING A VENTILATOR - A method and system for controlling a ventilator is disclosed. Oxygen saturation values from pulse oximeters may be used to adjust the settings of a ventilator. Multiple sensors and multiple oxygen saturation values in a fault tolerant pulse oximeter configuration may be used to provide a backup value or confidence measure, thereby increasing reliability and patient safety. | 03-27-2014 |
20140155715 | WAVELENGTH SWITCHING FOR PULSE OXIMETRY - The present disclosure describes techniques that may provide more accurate estimates of arterial oxygen saturation using pulse oximetry by switching between a wavelength spectrum of at least a first and a second light source so that the arterial oxygen saturation estimates at low (e.g., in the range below 75%), medium (e.g., greater than or equal to 75% and less than or equal to 84%), and high (e.g., greater than 84% range) arterial oxygen saturation values are more accurately calculated. In one embodiment, light emitted from a near 660 nm and a near 900 nm emitter pair may be used when the arterial oxygen saturation range is high. In another embodiment, light emitted from a near 730 nm and a near 900 nm emitter pair may be used when the arterial oxygen saturation range is low. In yet another embodiment, light emitted from both a near 660 nm-900 nm emitter pair and light emitted from a near 730 nm-900 nm emitter pair may be used when the arterial oxygen saturation range is in the middle range. Priming techniques may also be used to reduce or eliminate start up delays of certain oximetry system components. | 06-05-2014 |
20140275943 | PHOTOACOUSTIC MONITORING TECHNIQUE - Various methods and systems for photoacoustic patient monitoring are provided. A photoacoustic system includes a light emitting component that emits one or more wavelengths of light into an interrogation region of a patient and an acoustic detector that detects acoustic energy generated by the interrogation region of the patient in response to the emitted light. The system may be implemented to receive photoacoustic waves from a local vein and artery and determine hemodynamic parameters based on a summed indicator dilution curve representative of both arterial and venous indicator dilution. | 09-18-2014 |
20150190088 | APNEA ANALYSIS SYSTEM AND METHOD - An apnea analysis system may include a photoplethysmographic (PPG) sub-system, a breath detection sub-system, and an apnea analysis module. An apnea analysis system includes a photoplethysmographic (PPG) sub-system, a breath detection sub-system, and an apnea analysis module. The PPG sub-system is configured to be operatively connected to an individual and output a PPG signal from the individual. The breath detection sub-system is configured to be operatively connected to the individual and output a breath signal from the individual. The apnea analysis module is in communication with the PPG sub-system and the breath detection sub-system. The apnea analysis module analyzes the breath signal and a respiratory component of the PPG signal and, based on the analysis, identifies a presence of apnea, differentiates between obstructive apnea and central apnea, and provides an indication of the identified apnea. | 07-09-2015 |
20150282721 | METHOD AND APPARATUS FOR NONINVASIVE BLOOD PRESSURE MEASUREMENT USING PULSE OXIMETRY - Embodiments of the present disclosure relate to a system and method for determining a physiologic parameter of a patient. Specifically, embodiments provided herein include blood pressure cuffs that are adapted to be used in conjunction with a photoplethysmography sensor. The cuff as provided may be configured to be placed over the sensor and/or aligned in a specific manner relative to the sensor. Alternatively, the cuffs may include integral optical components. | 10-08-2015 |
20160051172 | SYSTEM AND METHOD FOR STORING AND PROVIDING PATIENT-RELATED DATA - According to various embodiments, a regional oximetry sensor may include a light emitting element configured to emit light, a light detector configured to receive the light, and a memory device configured to store a baseline. The baseline stored by the memory device enables a regional oximetry monitor to display the baseline on a display of the regional oximetry monitor. | 02-25-2016 |
20160082212 | ENDOTRACHEAL TUBE WITH DEDICATED EVACUATION PORT - Various embodiments of a tracheal tube capable of suctioning accumulated mucus secretions from the airway of intubated patients are provided. Disclosed embodiments include a variety of endotracheal tubes with integral suction lumens terminating in ports optimally located at the distal end of the endotracheal tubes between a Murphy's Eye and a cuff. During intubation, the foregoing features, among others, of the tracheal tube may have the effect of preventing bacterial colonization of the respiratory airway and the subsequent development of ventilator associated pneumonia (VAP) in the lungs. | 03-24-2016 |
Patent application number | Description | Published |
20120005315 | METHOD AND SERVER FOR TRANSMITTING LARGE OBJECT - A method for transmitting a large object and a server is provided. The method includes: after a client or a server initiates a device management session, the server sending to the client a large object transmission command which carries large object transmission data, wherein a difference between the maximum number of message bytes (MAXMSGSIZE) supported by the client and the number of bytes of the large object transmission data is greater than or equal to a preset value; and the server receiving an execution result of the large object transmission command returned by the client, and executing subsequent transmission operations based on the execution result. | 01-05-2012 |
20120225641 | METHOD, DEVICE AND SYSTEM FOR UPDATING SECURITY ALGORITHM OF MOBILE TERMINAL - A method, device and system for updating a security algorithm of a mobile terminal are disclosed in the present invention. The method includes the steps of when a communication connection between a mobile terminal and a network side is established, transmitting a Device Management (DM) request message for obtaining state related information on a designated type to the mobile terminal; receiving the state related information on the designated type returned by the mobile terminal; and obtaining an algorithm identifier corresponding to the state related information and indicating the mobile terminal to update the security algorithm used locally according to the algorithm identifier. It is able to ensure the usage security of mobile terminals according to the present invention. | 09-06-2012 |
20130194537 | Method and Apparatus for Wavelength Selective Switch - Apparatus and method embodiments are provided for implementing a wavelength selective switch (WSS). The embodiments use combinations of switchable polarization grating (SPG) and LC cells and combinations of polymer polarization grating (PPG) and LC cells to achieve 1×N WSS systems. An embodiment optical switch includes a liquid crystal cell and a SPG cell adjacent to the liquid crystal cell. The SPG includes liquid crystal material between two photo-alignment layers, an electrode layer overlying each photo-alignment layer, and a glass substrate overlying each electrode layer. An embodiment method includes polarizing an incident light beam at a circular polarization before diffracting, at a polarization grating, the polarized incident light beam in a determined angle that corresponds to a diffraction order in accordance to the circular polarization of the incident light beam and a hologram pattern direction formed inside the polarization grating. | 08-01-2013 |
20140139619 | COMMUNICATION METHOD AND DEVICE FOR VIDEO SIMULATION IMAGE - A method and device for communicating a video with a simulation image is provided. The method includes: acquiring, by a sender, video data, transforming the acquired video data into vector data in image recognition algorithm, and sending the vector data to a receiver; and calling, by the receiver, a cartoon rendering model and rendering the received vector data in the video with a corresponding cartoon simulation image according to the cartoon rendering model. By using the present invention, the amount of data transmitted in a network may be reduced, and network bandwidth resources are saved. | 05-22-2014 |
20140207440 | LANGUAGE RECOGNITION BASED ON VOCABULARY LISTS - A method is implemented at a computer to determine that certain information content is composed or compiled in a specific language selected among two or more similar languages. The computer integrates a first vocabulary list of a first language and a second vocabulary list of a second language into a comprehensive vocabulary list. The integrating includes analyzing the first vocabulary list in view of the second vocabulary list to identify a first vocabulary sub-list that is used in the first language, but not in the second language. The computer then identifies, in the information content, a plurality of expressions that are included in the comprehensive vocabulary list, and a subset of expressions that are included in the first vocabulary sub-list. Upon a determination that a total frequency of occurrence of the subset of expressions meets predetermined occurrence criteria, the computer determines that the information content is composed in the first language. | 07-24-2014 |
20140210857 | REALIZATION METHOD AND DEVICE FOR TWO-DIMENSIONAL CODE AUGMENTED REALITY - A computer-implemented method for two-dimensional code augmented reality includes: detecting an image capture of a two-dimensional code through a camera video frame; identifying the contour of the two-dimensional code captured in the camera video frame; decoding the information embedded in the detected two-dimensional code; obtaining content information corresponding to the decoded two-dimensional code; tracking the identified contour of the two-dimensional code within the camera video frame to obtain the position information of the two-dimensional code in the camera video frame; performing augmented reality processing on the two-dimensional code based on the content information and the position information; and generating the augmented reality on the device while simultaneously displaying real-world imagery on the display of the device, wherein any visual augmented reality is displayed in accordance with the location of the two-dimensional code in the video frame. | 07-31-2014 |
20140214401 | METHOD AND DEVICE FOR ERROR CORRECTION MODEL TRAINING AND TEXT ERROR CORRECTION - A computer-implemented method is performed at a device having one or more processors and memory storing programs executed by the one or more processors. The method comprises: selecting a target word in a target sentence; from the target sentence, acquiring a first sequence of words that precede the target word and a second sequence of words that succeed the target word; from a sentence database, searching and acquiring a group of words, each of which separates the first sequence of words from the second sequence of words in a sentence; creating a candidate sentence for each of the candidate words by replacing the target word in the target sentence with each of the candidate words; determining the fittest sentence among the candidate sentences according to a linguistic model; and suggesting the candidate word within the fittest sentence as a correction. | 07-31-2014 |
20140214406 | METHOD AND SYSTEM OF ADDING PUNCTUATION AND ESTABLISHING LANGUAGE MODEL - A method of processing information content based on a language model is performed at a computer, the method including the following steps: identifying a plurality of expressions in the information content that is queued to be processed; dividing the plurality of expressions into a plurality of characteristic units according to semantic features and predetermined characteristics associated with each of the plurality of characteristic units, each characteristic unit including a subset of the plurality of expressions and the predetermined characteristics at least including a respective integer number of expressions that are included in the characteristic unit; extracting, from the language model, a plurality of probabilities for a plurality of punctuation marks associated with each of the plurality of characteristic units; and in accordance with the extracted probabilities, associating a respective punctuation mark with each of the plurality of characteristic units included in the information content. | 07-31-2014 |
20140214416 | METHOD AND SYSTEM FOR RECOGNIZING SPEECH COMMANDS - A method of recognizing speech commands includes generating a background acoustic model for a sound using a first sound sample, the background acoustic model characterized by a first precision metric. A foreground acoustic model is generated for the sound using a second sound sample, the foreground acoustic model characterized by a second precision metric. A third sound sample is received and decoded by assigning a weight to the third sound sample corresponding to a probability that the sound sample originated in a foreground using the foreground acoustic model and the background acoustic model. The method further includes determining if the weight meets predefined criteria for assigning the third sound sample to the foreground and, when the weight meets the predefined criteria, interpreting the third sound sample as a portion of a speech command. Otherwise, recognition of the third sound sample as a portion of a speech command is forgone. | 07-31-2014 |
20140214417 | METHOD AND DEVICE FOR VOICEPRINT RECOGNITION - A method and device for voiceprint recognition, include: establishing a first-level Deep Neural Network (DNN) model based on unlabeled speech data, the unlabeled speech data containing no speaker labels and the first-level DNN model specifying a plurality of basic voiceprint features for the unlabeled speech data; obtaining a plurality of high-level voiceprint features by tuning the first-level DNN model based on labeled speech data, the labeled speech data containing speech samples with respective speaker labels, and the tuning producing a second-level DNN model specifying the plurality of high-level voiceprint features; based on the second-level DNN model, registering a respective high-level voiceprint feature sequence for a user based on a registration speech sample received from the user; and performing speaker verification for the user based on the respective high-level voiceprint feature sequence registered for the user. | 07-31-2014 |
20140214419 | METHOD AND SYSTEM FOR AUTOMATIC SPEECH RECOGNITION - An automatic speech recognition method includes at a computer having one or more processors and memory for storing one or more programs to be executed by the processors, obtaining a plurality of speech corpus categories through classifying and calculating raw speech corpus; obtaining a plurality of classified language models that respectively correspond to the plurality of speech corpus categories through a language model training applied on each speech corpus category; obtaining an interpolation language model through implementing a weighted interpolation on each classified language model and merging the interpolated plurality of classified language models; constructing a decoding resource in accordance with an acoustic model and the interpolation language model; and decoding input speech using the decoding resource, and outputting a character string with a highest probability as a recognition result of the input speech. | 07-31-2014 |
20140219461 | METHOD AND DEVICE FOR AUDIO RECOGNITION - A method and device for performing audio recognition, including: collecting a first audio document to be recognized; initiating calculation of first characteristic information of the first audio document, including: conducting time-frequency analysis for the first audio document to generate a first preset number of phase channels; and extracting at least one peak value characteristic point from each phase channel of the first preset number of phrase channels, where the at least one peak value characteristic point of each phase channel constitutes the peak value characteristic point sequence of said each phase channel; and obtaining a recognition result for the first audio document, wherein the recognition result is identified based on the first characteristic information, and wherein the first characteristic information is calculated based on the respective peak value characteristic point sequences of the preset number of phase channels. | 08-07-2014 |
20140222417 | METHOD AND DEVICE FOR ACOUSTIC LANGUAGE MODEL TRAINING - A method and a device for training an acoustic language model, include: conducting word segmentation for training samples in a training corpus using an initial language model containing no word class labels, to obtain initial word segmentation data containing no word class labels; performing word class replacement for the initial word segmentation data containing no word class labels, to obtain first word segmentation data containing word class labels; using the first word segmentation data containing word class labels to train a first language model containing word class labels; using the first language model containing word class labels to conduct word segmentation for the training samples in the training corpus, to obtain second word segmentation data containing word class labels; and in accordance with the second word segmentation data meeting one or more predetermined criteria, using the second word segmentation data containing word class labels to train the acoustic language model. | 08-07-2014 |
20140236591 | METHOD AND SYSTEM FOR AUTOMATIC SPEECH RECOGNITION - A method of recognizing speech is provided that includes generating a decoding network that includes a primary sub-network and a classification sub-network. The primary sub-network includes a classification node corresponding to the classification sub-network. The classification sub-network corresponds to a group of uncommon words. A speech input is received and decoded by instantiating a token in the primary sub-network and passing the token through the primary network. When the token reaches the classification node, the method includes transferring the token to the classification sub-network and passing the token through the classification sub-network. When the token reaches an accept node of the classification sub-network, the method includes returning a result of the token passing through the classification sub-network to the primary sub-network. The result includes one or more words in the group of uncommon words. A string corresponding to the speech input is output that includes the one or more words. | 08-21-2014 |
20140237576 | USER AUTHENTICATION METHOD AND APPARATUS BASED ON AUDIO AND VIDEO DATA - A computer-implemented method is performed at a server having one or more processors and memory storing programs executed by the one or more processors for authenticating a user from video and audio data. The method includes: receiving a login request from a mobile device, the login request including video data and audio data; extracting a group of facial features from the video data; extracting a group of audio features from the audio data and recognizing a sequence of words in the audio data; identifying a first user account whose respective facial features match the group of facial features and a second user account whose respective audio features match the group of audio features. If the first user account is the same as the second user account, retrieve the sequence of words associated with the user account and compare the sequences of words for authentication purpose. | 08-21-2014 |
20140317465 | METHOD AND SYSTEM FOR TRANSMITTING LARGE OBJECT - The present disclosure provides a method for transmitting a large object, after a server establishes a session with a client, the method includes: the server divides a pre-transmitted large object into data blocks, and transmits one by one in sequence acquired data blocks and their sizes to the client; the client determines whether a received data block is transmitted successfully, if the received data block is transmitted successfully, the data block is saved, and a current data block transmission success message is returned to the server; if the received data block is not transmitted successfully, an end session request message or a re-transmitting current data block request message is returned to the server; and the server transmits the corresponding data block and its size or ends the session according to the received messages. The present disclosure further provides a system for transmitting a large object. When there is an error in transmitting a data block of a large object, the method and the system in the present disclosure process it in advance, thus saving bandwidth resources. | 10-23-2014 |
20140321747 | METHOD, APPARATUS AND TERMINAL FOR DETECTING IMAGE STABILITY - An apparatus and terminal perform a method for detecting image stability in image processing. The method includes: acquiring N consecutive image frames, wherein N is an integer equal to 2 or larger; performing in each of the N consecutive image frames, the following: detecting corner points in the image frame, dividing the image frame into multiple areas, and recording distribution of the corner points in each of the multiple areas of the image frame in order to obtain a description vector of the image frame; calculating a number of areas according to the description vector of the image frame over the N consecutive image frames, wherein an existing state of the corner points has changed; determining whether the N consecutive image frames are stable, based on the number of areas which the existing state of the corner points has changed over the N consecutive image frames. | 10-30-2014 |
20140341422 | Systems and Methods for Facial Property Identification - Systems and methods are provided for facial property identification. For example, an image sample is acquired; a first effective area image of a face is acquired in the image sample; first textural features of the first effective area image are extracted: and the first textural features of the first effective area image are classified by race, gender and age using a race classifier, a gender classifier and an age classifier successively to obtain a race property, a gender property and an age property of the face. | 11-20-2014 |
20140341444 | Systems and Methods for User Login - Systems and methods are provided for user login. For example, a login request from a first user is received, the login request being associated with fast login based on at least information associated with facial authentication; one or more first facial images of the first user are acquired; one or more first facial features are extracted from the one or more first facial images; the first facial features are compared with a predetermined feature template; and in response to a comparison result associated with the first facial features and the predetermined feature template exceeding a predetermined threshold, the first user is allowed to log in based on predetermined first user information of the first user. | 11-20-2014 |
20140343704 | Systems and Methods for Program Identification - Systems and methods are provided for program identification. For example, a first audio fingerprint corresponding to a first audio signal is acquired; whether one or more second audio fingerprints in a predetermined fingerprint database match with the first audio fingerprint is detected, a second audio fingerprint corresponding to a second audio signal; and in response to one of the second audio fingerprints matching with the first audio fingerprint, a program associated with the matching second audio signal is provided as a result for program identification associated with the first audio signal. | 11-20-2014 |
20140350918 | METHOD AND SYSTEM FOR ADDING PUNCTUATION TO VOICE FILES - A method and system for adding punctuation to a voice file is disclosed. The method includes: utilizing silence or pause duration detection to divide a voice file into a plurality of speech segments for processing, the voice file includes a plurality of features units; identifying all features units that appear in the voice file according to every term or expression and semantics features of the every term or expression that form each of the plurality of speech segments; using a linguistic model to determine a sum of weight of various punctuation modes in the voice file according to all the feature units, the linguistic model is built upon semantics features of various parsed out terms or expressions from a body text of a spoken sentence according to a language library; and adding punctuations to the voice file based on the determined sum of weight of the various punctuation modes. | 11-27-2014 |
20140350934 | Systems and Methods for Voice Identification - Systems and methods are provided for voice identification. For example, audio characteristics are extracted from acquired voice signals; a syllable confusion network is identified based on at least information associated with the audio characteristics; a word lattice is generated based on at least information associated with the syllable confusion network and a predetermined phonetic dictionary; and an optimal character sequence is calculated in the word lattice as an identification result. | 11-27-2014 |
20140350939 | Systems and Methods for Adding Punctuations - Systems and methods are provided for adding punctuations. For example, one or more first feature units are identified in a voice file taken as a whole; the voice file is divided into multiple segments: one or more second feature units are identified in the voice file; a first aggregate weight of first punctuation states of the voice file and a second aggregate weight of second punctuation states of the voice file are determined, using a language model established based on word separation and third semantic features; a weighted calculation is performed to generate a third aggregate weight based on at least information associated with the first aggregate weight and the second aggregate weight; and one or more final punctuations are added to the voice file based on at least information associated with the third aggregate weight. | 11-27-2014 |
20140358539 | METHOD AND APPARATUS FOR BUILDING A LANGUAGE MODEL - A method includes: acquiring data samples; performing categorized sentence mining in the acquired data samples to obtain categorized training samples for multiple categories; building a text classifier based on the categorized training samples; classifying the data samples using the text classifier to obtain a class vocabulary and a corpus for each category; mining the corpus for each category according to the class vocabulary for the category to obtain a respective set of high-frequency language templates; training on the templates for each category to obtain a template-based language model for the category; training on the corpus for each category to obtain a class-based language model for the category; training on the class vocabulary for each category to obtain a lexicon-based language model for the category; building a speech decoder according to an acoustic model, the class-based language model and the lexicon-based language model for any given field, and the data samples. | 12-04-2014 |
20140379354 | METHOD, APPARATUS AND SYSTEM FOR PAYMENT VALIDATION - A method, apparatus and system for payment validation have been disclosed. The method includes: receiving a payment validation request from a terminal, wherein the payment validation request includes identification information and a current voice signal; detecting whether the identification information is identical to a pre-stored identification information; if identical: extracting voice characteristics associated with an identity information and a text password from the current voice signal; matching the current voice characteristics to a pre-stored speaker model; if successfully matched: sending an validation reply message to the terminal to indicate that payment request has been authorized. The validation reply message is utilized by the terminal to proceed with a payment transaction. The identity information identifies an owner's current voice signal, and the text password is indicated by the current voice signal. The method eliminates the requirement of the server sending a SMS message with a validation code to the terminal. | 12-25-2014 |
20150019214 | METHOD AND DEVICE FOR PARALLEL PROCESSING IN MODEL TRAINING - A method and a device for training a DNN model includes: at a device including one or more processors and memory: establishing an initial DNN model; dividing a training data corpus into a plurality of disjoint data subsets; for each of the plurality of disjoint data subsets, providing the data subset to a respective training processing unit of a plurality of training processing units operating in parallel, wherein the respective training processing unit applies a Stochastic Gradient Descent (SGD) process to update the initial DNN model to generate a respective DNN sub-model based on the data subset; and merging the respective DNN sub-models generated by the plurality of training processing units to obtain an intermediate DNN model, wherein the intermediate DNN model is established as either the initial DNN model for a next training iteration or a final DNN model in accordance with a preset convergence condition. | 01-15-2015 |
20150095032 | Keyword Detection For Speech Recognition - This application discloses a method implemented of recognizing a keyword in a speech that includes a sequence of audio frames further including a current frame and a subsequent frame. A candidate keyword is determined for the current frame using a decoding network that includes keywords and filler words of multiple languages, and used to determine a confidence score for the audio frame sequence. A word option is also determined for the subsequent frame based on the decoding network, and when the candidate keyword and the word option are associated with two distinct types of languages, the confidence score of the audio frame sequence is updated at least based on a penalty factor associated with the two distinct types of languages. The audio frame sequence is then determined to include both the candidate keyword and the word option by evaluating the updated confidence score according to a keyword determination criterion. | 04-02-2015 |
20150120277 | Method, Device And System For Providing Language Service - A method, device and system for providing a language service are disclosed. In some embodiments, the method is performed at a computer system having one or more processors and memory for storing programs to be executed by the one or more processors. The method includes receiving a first message from a client device. The method includes determining if the first message is in a first language or a second language different than the first language. The method includes translating the first message into a second message in the second language if the first message is in the first language. The method includes, alternatively, generating a third message in the second language if the first message is in the second language, where the third message includes a conversational response to the first message. The method further includes returning one of the second message and the third message to the client device. | 04-30-2015 |
20150139529 | METHODS AND DEVICES FOR OBTAINING CARD INFORMATION - A server system with one or more processors and memory obtains, from a client device, a card image which includes an image of a card, and identifies a card configuration type corresponding to the card in the card image based on a database of stored card configuration types. Each stored card configuration type in the database is associated with layout information regarding respective features and information regions for the stored card configuration type. In accordance with the identified card configuration type, the server system determines one or more information regions of the card image containing respective card information of the card. The server system extracts at least a portion of the card information of the card from the one or more information regions of the card image and transmits, to the client device, at least the extracted portion of the card information. | 05-21-2015 |
20150185583 | Method and Apparatus for Wavelength Selective Switch - Apparatus and method embodiments are provided for implementing a wavelength selective switch (WSS). The embodiments use combinations of switchable polarization grating (SPG) and LC cells and combinations of polymer polarization grating (PPG) and LC cells to achieve 1×N WSS systems. An embodiment optical switch includes a liquid crystal cell and a polymer polarization grating (PPG) cell adjacent to the liquid crystal cell. The PPG includes a glass substrate, a photo-alignment layer overlying the glass substrate and comprising photosensitive polymer that has been physically altered by exposure using two interfering light beams with opposite handedness of circular polarization, and a polymerized liquid crystal layer overlying the photo-alignment layer on an opposite side of the glass substrate, the polymerized liquid crystal layer has been physically altered by illumination using a uniform light beam. | 07-02-2015 |
20150310308 | METHOD AND APPARATUS FOR RECOGNIZING CLIENT FEATURE, AND STORAGE MEDIUM - In the present disclosure, a client feature and a pre-stored template image feature are obtained; the obtained client feature and template image feature are projected according to a preset projection matrix, to generate a projection feature pair, where the projection matrix is formed by training of a first template image feature of a same object and a second template image feature of a different object; and similarity calculation is performed on the projection feature pair according to a preset similarity calculation rule, to generate a similarity result and prompt the similarity result to a client. | 10-29-2015 |
20160086609 | SYSTEMS AND METHODS FOR AUDIO COMMAND RECOGNITION - The present application discloses a method, an electronic system and a non-transitory computer readable storage medium for recognizing audio commands in an electronic device. The electronic device obtains audio data based on an audio signal provided by a user and extracts characteristic audio fingerprint features from the audio data. The electronic device further determines whether the corresponding audio signal is generated by an authorized user by comparing the characteristic audio fingerprint features with an audio fingerprint model for the authorized user and with a universal background model that represents user-independent audio fingerprint features, respectively. When the corresponding audio signal is generated by the authorized user of the electronic device, an audio command is extracted from the audio data, and an operation is performed according to the audio command. | 03-24-2016 |