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Deng, TX
Hong Deng, Houston, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20080210473 | HYBRID CARBON NANOTUBE REINFORCED COMPOSITE BODIES - A composite body for cutting tools that includes a ductile phase; a plurality of carbide particles dispersed the ductile phase; and a plurality of nanotubes integrated into the composite body is disclosed. Methods of making such composite bodies and drill bits formed of such material are also disclosed. | 09-04-2008 |
Hongyang Deng, Austin, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20090060167 | Adaptive filter for use in echo reduction - Methods and corresponding systems in an adaptive filter include calculating a signal estimator output using filter coefficients, and calculating an error signal. Next, a coefficient threshold is determined. Thereafter, for each filter coefficient, a first step size is assigned to filter coefficients with a magnitude less than the coefficient threshold, and a second step size is assigned to filter coefficients with a magnitude greater than or equal to the coefficient threshold. Finally, the filter coefficients are updated using the first and second step sizes and the error signal. The coefficient threshold can be selected as the average of the magnitudes of the filter coefficients. Alternatively, the coefficient threshold can be selected as the Mth largest of the filter coefficients ranked in order of magnitude. In one embodiment, the first step size can be less than one and the second step size can be greater than one. | 03-05-2009 |
| 20100034373 | ECHO CANCELLER WITH HEAVY DOUBLE-TALK ESTIMATION - In a data processing system, a method includes receiving samples of a send path input signal (Sin) and samples of a receive path input signal (Rin); in response to receiving each sample of the send path input signal, providing a double-talk indicator to indicate whether or not double-talk has been detected; using the double-talk indicator to determine a double-talk density within a predetermined number of samples of the send path input signal or the receive path input signal; and using the double-talk density to provide a heavy double-talk indicator which indicates whether or not heavy double-talk has been detected. In response to the heavy double-talk indicator indicating that heavy double-talk has been detected, a heavy double-talk mode may be entered. | 02-11-2010 |
| 20110013766 | METHOD AND APPARATUS HAVING ECHO CANCELLATION AND TONE DETECTION FOR A VOICE/TONE COMPOSITE SIGNAL - A system includes receive and send inputs, an adaptive filter, a combiner, a non-linear processor, and a tone detector. The receive input receives a first signal having first voice and first tone information. The send input receives a second signal having echo information, second tone information, and second voice information. The adaptive filter has an input coupled to the receive input, and an output. The combiner has a first input coupled to the send input, a second input coupled to the output of the adaptive filter, and an output providing an intermediate signal. The nonlinear processor has an input coupled to the output of the combiner and an output for providing an output signal for obtaining the second voice. The tone detector is coupled to the output of the combiner and detects the second tone in the intermediate signal prior to the intermediate signal being processed by the nonlinear processor. | 01-20-2011 |
| 20110064213 | Time Domain Adaptive Filter Bank for Network Echo Reduction or Cancellation - In one or more embodiments, an echo reduction system can include multiple adaptive filters operable to provide estimated echo replicas based on received signal information coupled to respective multiple adders that can combine a send signal and outputs of the respective adaptive filters and can provide respective output combinations to a filter selector. The filter selector can select from the outputs of the adders and provide a selected output as output for the echo reduction system. In one or more embodiments, the filter selector can control signal processing of the filters by providing control signal to the adaptive filters, where the control signals can indicate to ones of the adaptive filters to pause or continue signal processing. In one or more embodiments, the echo reduction system can include at least one delay unit that can delay receive signal information to at least one of the adaptive filters. | 03-17-2011 |
| 20110261948 | Techniques for Updating Filter Coefficients of an Adaptive Filter - A technique for updating filter coefficients of an adaptive filter includes filtering a signal with an adaptive filter, whose filter coefficients are grouped into filter blocks. In this case a number of the filter blocks is less than or equal to a number of the filter coefficients. During each update period, the filter coefficients for less than all of the filter blocks are updated based on a network echo path impulse response. | 10-27-2011 |
| 20110261949 | Techniques for Implementing Adaptation Control of an Echo Canceller to Facilitate Detection of In-Band Signals - A technique for detecting in-band signaling tones in a communication system includes performing a first adaptation of an adaptive filter of an echo canceller in response to detection of a far-end harmonic signal. In this case, the adaptive filter provides an echo estimation signal. The technique also includes subtracting the echo estimation signal from a near-end signal that includes one or more in-band signaling tones to provide an error signal. The technique further includes detecting, using a tone detector, the one or more in-band signaling tones in the error signal. | 10-27-2011 |
Ying Deng, Houston, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20090155333 | Dermis-Derived Cells for Tissue Engineering Applications - Methods for inducing differentiation of dermis-derived cells to serve as a source of chondrocytes and associated methods of use in forming tissue engineered constructs. One example of a method is a method for inducing differentiation of cells into chondrocytes comprising providing aggrecan sensitive isolated dermis cells and seeding the cells onto an aggrecan coated surface. | 06-18-2009 |
Yinglu Deng, Austin, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20110264601 | System and Method for Longevity/Mortality Derivatives Pricing and Risk Management - A computer-implemented method and system which can be used for assessing and quantifying the longevity (mortality) risk and pricing the longevity (mortality) derivatives by using Asymmetric Jump Diffusion (AJD) Model is disclosed. Longevity risk (Mortality risk), which is defined as the uncertainty associated with the overestimation (underestimation) of the mortality rate, is faced by annuity providers, pension funds and life insurers. The AJD method and system, composed of means, introduce an appropriate probability density function at higher accuracy to capturing the leptokurtosis feature and the asymmetric jump feature of the mortality rate risk. The method and system include means for decomposing the mortality rate, means for capturing the time-specific indicator trend feature; means for calibrating the AJD model by Maximum Likelihood Estimation (MLE) procedure, means for projecting future mortality rate by Monte-Carlo simulation and means for pricing the derivatives with implied market price of risk. | 10-27-2011 |
Yuanjian Deng, Houston, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20100140097 | Instantaneous Electrodeposition of Metal Nanostructures on Carbon Nanotubes - A method comprising: dispersing carbon nanotubes in a solvent; and depositing the carbon nanotubes on a porous, conductive substrate; wherein the porous, conductive substrate is capable of functioning as a filter and a working electrode. The method of claim | 06-10-2010 |
Yuanying Deng, Murphy, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20100144304 | Reciever dynamically switching to pseudo differential mode for SOC spur reduction - A low noise amplifier in an integrated circuit, the circuit having a digital portion and an analog portion on a common substrate, the digital portion having at least one clocking frequency, includes an input configured to receive a signal at a tuned frequency and an output circuit. The output circuit is configurable to operate in either a single-ended mode or a pseudo differential-ended mode, wherein the output circuit is configured in the pseudo differential-ended mode when the tuned frequency is substantially similar to the at least one clocking frequency or one of its harmonics and otherwise configured in the single-ended mode. | 06-10-2010 |
| 20110092246 | Asymmetric ESD Protection for FM Transmitter - Various apparatuses and methods for protecting a transmitter from electrostatic discharge are disclosed herein. For example, some embodiments provide an apparatus including a first ESD clamp connected to an antenna input, a first reactive component connected to the first ESD clamp, a second ESD clamp connected to the first reactive component, and a second reactive component connected between the second ESD clamp and the transmitter. | 04-21-2011 |
Yun Deng, Sugar Land, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20110033247 | Effective Approach to Preventing and Remedying Distresses in Soils and Construction Materials - This invention describes a simple and effective method, through introducing fluoride ion releasing agent/salt(s), such as sodium fluoride, for preventing, reducing or eliminating the undesirable construction heave/expansion/distresses/damage, characterized by loss of dimensional stability and integrity of expansive soil layers or concrete structural elements, primarily caused by the formation of ettringite or similar minerals. We demonstrated the technology that can be easily applied to new construction sites and to the sites where repair/retrofit of the existing or potential distresses in soil subgrade, base, subbase, or construction materials is needed. Experiments have demonstrated the effectiveness and efficiency of the technology with applications to stabilization of soils with all range of aluminum and sulfate contents including more than 3000 ppm of sulfate, and to treating cementitious construction materials. This invention can also extend the application of lime to stabilization of sulfate-rich soils and remedy of foundation movement or tilting of buildings caused by the formation of ettringite. | 02-10-2011 |