Patent application number | Description | Published |
20100278352 | Wind Suppression/Replacement Component for use with Electronic Systems - Systems and methods to reduce the negative impact of wind on an electronic system include use of a first detector that receives a first signal and a second detector that receives a second signal. A voice activity detector (VAD) coupled to the first detector generates a VAD signal when the first signal corresponds to voiced speech. A wind detector coupled to the second detector correlates signals received at the second detector and derives from the correlation wind metrics that characterize wind noise that is acoustic disturbance corresponding to at least one of air flow and air pressure in the second detector. The wind detector controls a configuration of the second detector according to the wind metrics. The wind detector uses the wind metrics to dynamically control mixing of the first signal and the second signal to generate an output signal for transmission. | 11-04-2010 |
20100280824 | Wind Suppression/Replacement Component for use with Electronic Systems - Systems and methods to reduce the negative impact of wind on an electronic system include use of a first detector that receives a first signal and a second detector that receives a second signal. A voice activity detector (VAD) coupled to the first detector generates a VAD signal when the first signal corresponds to voiced speech. A wind detector coupled to the second detector correlates signals received at the second detector and derives from the correlation wind metrics that characterize wind noise that is acoustic disturbance corresponding to at least one of air flow and air pressure in the second detector. The wind detector controls a configuration of the second detector according to the wind metrics. The wind detector uses the wind metrics to dynamically control mixing of the first signal and the second signal to generate an output signal for transmission. | 11-04-2010 |
20110026722 | Vibration Sensor and Acoustic Voice Activity Detection System (VADS) for use with Electronic Systems - A voice activity detector (VAD) combines the use of an acoustic VAD and a vibration sensor VAD as appropriate to the conditions a host device is operated. The VAD includes a first detector receiving a first signal and a second detector receiving a second signal. The VAD includes a first VAD component coupled to the first and second detectors. The first VAD component determines that the first signal corresponds to voiced speech when energy resulting from at least one operation on the first signal exceeds a first threshold. The VAD includes a second VAD component coupled to the second detector. The second VAD component determines that the second signal corresponds to voiced speech when a ratio of a second parameter corresponding to the second signal and a first parameter corresponding to the first signal exceeds a second threshold. | 02-03-2011 |
20130211830 | WIND SUPPRESSION/REPLACEMENT COMPONENT FOR USE WITH ELECTRONIC SYSTEMS - Techniques associated with an acoustic vibration sensor are described, including a first detector that receives a first signal and a second detector that receives a second signal and a third signal, wherein the first signal comprises a skin surface microphone signal, a static equalization filter coupled to the first detector and configured to generate an equalized first signal, a voice activity detector coupled to the first detector, and a wind detector coupled to the second detector, the wind detector configured to correlate the second signal and the third signal and to derive from the correlation a plurality of wind metrics associated with a wind noise, the wind detector is further configured to determine a magnitude associated with the wind noise, to determine whether to suspend an activity of the system, and to determine a duration of time that the magnitude associated with the wind noise exceeds a threshold. | 08-15-2013 |
Patent application number | Description | Published |
20080319725 | Method of Estimating the Instantaneous Engine Speed Produced by Each Cylinder of an Internal-Combustion Engine - The invention is a method for real-time estimation of the instantaneous engine speed produced by each cylinder of an internal-combustion engine, from an instantaneous engine speed measurement at the end of the engine transmission system. A physical model, representing in real time the dynamics of the transmission system according to the crankshaft angle and to coefficients of a Fourier series decomposition of the instantaneous speed produced by each cylinder, is constructed. These coefficients are determined in real time from coupling between the model and an adaptive type non-linear estimator. The instantaneous speed produced by each cylinder is then deduced from these coefficients. The mean torque produced by each cylinder can also be deduced therefrom. An application is: engine controls. | 12-25-2008 |
20090187279 | METHOD AND DEVICE FOR CONTROLLING PRODUCTION OF A MIXTURE OF COMPONENTS, IN PARTICULAR A MIXTURE WITH PRE-MIX DEAD VOLUMES - The invention relates to a method and a device for controlling the production of a mixture of components, especially a mixture with premix dead volumes. | 07-23-2009 |
20110011062 | METHOD AND SYSTEM FOR CONTROLLING ACTIVE REGENERATION OF A DIESEL PARTICULATE FILTER - Method of controlling the active regeneration of a particulate filter through dynamic control of the temperature at the outlet of an oxidation catalyst. | 01-20-2011 |
20110160921 | METHOD AND DEVICE FOR PRODUCING A MIXTURE OF CONSTITUENTS WITH CONSTRAINTS, ESPECIALLY WITH PREMIXING - The invention relates to a method and a system for controlling the production of a mixture of constituents, especially a mixture with premix dead volumes. | 06-30-2011 |
20130255806 | METHOD AND DEVICE FOR CONTROLLING PRODUCTION OF A MIXTURE OF COMPONENTS, IN PARTICULAR A MIXTURE WITH PRE-MIX DEAD VOLUMES - The invention relates to a method and a device for controlling the production of a mixture of components, especially a mixture with premix dead volumes. | 10-03-2013 |
20140099722 | FLOW-RATE CONTROL IN A MICROFLUIDIC DEVICE - A method for controlling a flow-rate of fluid flowing in a microfluidic network comprising a microchannel and a plurality of inlet/outlet interface ports is disclosed. The method includes: successively applying a plurality of pressures on at least one inlet/outlet interface port, measuring a time series of flow-rate values of the fluid generated in response to the plurality of applied pressures, estimating parameters of a model of the microfluidic network response to input pressure values based on the applied pressure values and the measured time series of output flow-rate values, computing a target pressure value at each of the inlet/outlet interface ports corresponding to a predetermined flow-rate value at the flow-rate measuring point, wherein the predetermined flow-rate value corresponds to an output value of the model of the microfluidic network response to the target pressure value, and applying the computed target pressure value on the at least one inlet/outlet interface port. | 04-10-2014 |
Patent application number | Description | Published |
20100128881 | Acoustic Voice Activity Detection (AVAD) for Electronic Systems - Acoustic Voice Activity Detection (AVAD) methods and systems are described. The AVAD methods and systems, including corresponding algorithms or programs, use microphones to generate virtual directional microphones which have very similar noise responses and very dissimilar speech responses. The ratio of the energies of the virtual microphones is then calculated over a given window size and the ratio can then be used with a variety of methods to generate a VAD signal. The virtual microphones can be constructed using either an adaptive or a fixed filter. | 05-27-2010 |
20100128894 | Acoustic Voice Activity Detection (AVAD) for Electronic Systems - Acoustic Voice Activity Detection (AVAD) methods and systems are described. The AVAD methods and systems, including corresponding algorithms or programs, use microphones to generate virtual directional microphones which have very similar noise responses and very dissimilar speech responses. The ratio of the energies of the virtual microphones is then calculated over a given window size and the ratio can then be used with a variety of methods to generate a VAD signal. The virtual microphones can be constructed using either an adaptive or a fixed filter. | 05-27-2010 |
20140126743 | ACOUSTIC VOICE ACTIVITY DETECTION (AVAD) FOR ELECTRONIC SYSTEMS - Acoustic Voice Activity Detection (AVAD) methods and systems are described. The AVAD methods and systems, including corresponding algorithms or programs, use microphones to generate virtual directional microphones which have very similar noise responses and very dissimilar speech responses. The ratio of the energies of the virtual microphones is then calculated over a given window size and the ratio can then be used with a variety of methods to generate a VAD signal. The virtual microphones can be constructed using either an adaptive or a fixed filter. | 05-08-2014 |
20140126744 | ACOUSTIC VOICE ACTIVITY DETECTION (AVAD) FOR ELECTRONIC SYSTEMS - Acoustic Voice Activity Detection (AVAD) methods and systems are described. The AVAD methods and systems, including corresponding algorithms or programs, use microphones to generate virtual directional microphones which have very similar noise responses and very dissimilar speech responses. The ratio of the energies of the virtual microphones is then calculated over a given window size and the ratio can then be used with a variety of methods to generate a VAD signal. The virtual microphones can be constructed using either an adaptive or a fixed filter. | 05-08-2014 |