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| Number | Title | Issue Date |
| 7706902 | Method and system for data logging in a listening device A method and system for data logging in a listening device is provided. The system includes a digital signal processing (DSP) entity, which performs normal hearing aid audio and system processing, a level translating module, and a non-volatile (NV) memory. The NV me... | 04/27/2010 |
| 7693294 | Method and system for reducing audible side effects of dynamic current consumption A method and system for reducing audible side effects of dynamic current consumption is provided. The system includes an audio subsystem, and a plurality of digital subsystems. The audio subsystem and the digital subsystem are powered by a common power supply. T he ... | 04/06/2010 |
| 7692568 | Low power sigma delta modulator with successive approximation converter A low power analog-to-digital channel includes a decimation filter coupled to a sigma-delta modulator. Various embodiments include a decimation filter including an output and a sigma-delta modulator coupled to the output of the decimation filter, where a clock frequ... | 04/06/2010 |
| 7672462 | Method and system for acoustic shock protection An acoustic shock protection method and device are provided. A pattern analysis-based approach is taken to an input signal to perform feature extraction. A parameter space is identified, which is corresponding to the signal space of the input signal. A rule-based de... | 03/02/2010 |
| 7558390 | Listening device A method for equalizing output signals from a plurality of signal paths is disclosed. The method comprises steps of identifying a transfer function for each of signal paths, determining a filtering function for each signal path such that a product of the transfer fu... | 07/07/2009 |
| 7489790 | Digital automatic gain control Systems, devices, and methods are provided to inhibit apparent amplitude modulation in non-linear processing that causes distortion in a processed signal. One aspect of the invention includes a hearing aid. The hearing aid includes a microphone to receive an input s... | 02/10/2009 |
| 7398173 | Providing nonlinear temperature compensation for sensing means by use of Padé approximant function emulators Sensors and/or transducers can exhibit nonlinear response to temperature changes in terms of offset and also in terms of sensitivity to variations in a sensed physical attribute (pressure, strain, displacement, etc.). Padé Approximant function emulators are used to... | 07/08/2008 |
| 7378858 | Padé approximant based compensation for integrated sensor modules and the like Methods and systems using Pade' Approximant expansion ratios provide mappings between nonlinear sensors and a more linearized output domain. In one embodiment (a) a variable gain amplifier receives a supplied input signal, the amplifier has at least a first input te... | 05/27/2008 |
| 7342985 | Delay locked loop with fixed angle de-skew, quick start and low jitter Digital delay locked loops which generate fixed angle delayed (e.g., quadrature) clock signals based on a reference clock signal and that accounts for clock signal delay. The number of quadrature delay elements is calculated based on the number of delay elements nee... | 03/11/2008 |
| 7337425 | Structured ASIC device with configurable die size and selectable embedded functions One embodiment of the present invention provides for a master or universal base and base tooling which addresses the general purpose Structured ASIC requirements. Another embodiment of the present invention provides for a common set of base tooling from which the ma... | 02/26/2008 |
| 7279757 | Double-sided extended drain field effect transistor A double-sided extended drain field effect transistor that includes a gate terminal overlying a channel region in a substrate. The substrate includes a drain region of a first carrier type that is laterally separated from the channel region by a first RESURF region ... | 10/09/2007 |
| 7218154 | Track and hold circuit with operating point sensitive current mode based offset compensation A track and hold (or sample and hold) offset compensated amplifier circuit that performs offset compensation in response to a comparison of sign (or sign and value) of the current forced to the output terminal of operational amplifier in order to keep it at the pote... | 05/15/2007 |
| 7215156 | Differential signal driver having complimentary and current-aided pre-emphasis A differential voltage signal (LVDS) driver circuit and/or a Current Mode Logic (CML) driver circuit. The circuit includes two current switches, each coupled to a corresponding input node. In a complementary manner, when a differential signal is applied across the i... | 05/08/2007 |
| 7197091 | Direct conversion receiver with direct current offset correction circuitry A direct conversion circuit that includes an in-phase and quadrature-phase feedback path that reduces Direct Current (DC) offset. Each feedback path includes a compensating mixer that generates an error correction voltage that is passed through a loop gain circuit a... | 03/27/2007 |
| 7190178 | Pade′ Approximant based compensation for integrated sensor modules and the like Methods and systems using Pade' Approximant expansion ratios provide mappings between nonlinear sensors and a more linearized output domain. In one embodiment (a) a variable gain amplifier receives a supplied input signal, the amplifier has at least a first input te... | 03/13/2007 |
| 7142144 | Low power sigma delta modulator A low power analog-to-digital channel includes a decimation filter coupled to a sigma-delta modulator. Various embodiments include a decimation filter including an output and a sigma-delta modulator coupled to the output of the decimation filter, where a clock frequ... | 11/28/2006 |
| 7139707 | Method and system for real-time speech recognition Method and system for real-time speech recognition is provided. The speech algorithm runs on a platform having an input-output processor and a plurality of processor units. The processor units operate substantially in parallel or sequentially to perform feature extr... | 11/21/2006 |
| 7139403 | Hearing aid with digital compression recapture Systems, devices, and methods are provided to inhibit apparent amplitude modulation in non-linear processing that causes distortion in a processed signal. One aspect of the invention includes a hearing aid. The hearing aid includes a microphone to receive an input s... | 11/21/2006 |
| 7139546 | Up-conversion of a down-converted baseband signal in a direct conversion architecture without the baseband signal passing through active elements A direct conversion circuit that not only down-converts the received modulated signal using a down-converting mixer into a baseband signal, but also, after performing a passive low pass filtering to remove higher-order components, performs up-conversion of the baseb... | 11/21/2006 |
| 7120584 | Method and system for real time audio synthesis A method and system for synthesizing audio speech is provided. A synthesis engine receives from a host, compressed and normalized speech units and prosodic information. The synthesis engine decompresses data and synthesizes audio signals. The synthesis engine can be... | 10/10/2006 |
| 7113760 | Direct conversion receiver for amplitude modulated signals using linear/log filtering A receiver circuit that includes a direct conversion receiver that receives a modulated signal, and generates an in-phase differential signal and a quadrature-phase differential signal. The receiver circuit includes an in-phase branch that processes the in-phase dif... | 09/26/2006 |
| 7110554 | Sub-band adaptive signal processing in an oversampled filterbank An adaptive signal processing system for improving a quality of a signal. The system includes an analysis filterbank for transforming a primary information signal in time domain into oversampled sub-band primary signals in frequency domain and an analysis filterbank... | 09/19/2006 |
| 7106039 | Closed loop direct current to direct current converter that does not require voltage reference A closed loop DC-to-DC converter circuit that includes an open loop DC-to-DC converter circuit configured to provide charge on its output terminal. A voltage-controlled inverse-resistance component is coupled to the output terminal of the open loop DC-to-DC converte... | 09/12/2006 |
| 7102188 | High reliability electrically erasable and programmable read-only memory (EEPROM) An EEPROM cell that combines a FET transistor and a capacitor. The transistor has a well that is shared by potentially all of the EEPROM cells in the array thereby reducing size. A gate terminal is formed over the well. Source and drain terminals are formed in the w... | 09/05/2006 |
| 7064609 | High voltage, low-offset operational amplifier with rail-to-rail common mode input range in a digital CMOS process An operational amplifier with two differential pairs coupled to different current sources. The gate terminals of the transistors in the first differential pair are used as input terminals providing common mode input for most of the rail-to-rail voltage. The bulk ter... | 06/20/2006 |
| 7057148 | Optical tracking sensor method The present invention is a method of optical tracking sensing using block matching to determine relative motion. The method includes three distinct means of compensating for non-uniform illumination: (1) a one-time calibration technique, (2) a real-time adaptive cal... | 06/06/2006 |
| 7050966 | Sound intelligibility enhancement using a psychoacoustic model and an oversampled filterbank A system and method of improving signal intelligibility over an interference signal is provided. The system includes a psychoacoustic professor having a psychoacoustic model wherein the level of a signal-of-interest is improved so as to be audible above noise and so... | 05/23/2006 |
| 7034597 | Dynamic phase alignment of a clock and data signal using an adjustable clock delay line A dynamic phase adjustment circuit that includes a multi-tap delay line that receives a clock input signal. The multi-tap delay line includes an initial portion that is adjustable, and final portion after the adjustable portion. A number of registers receive the sam... | 04/25/2006 |
| 7034574 | Low-voltage differential signal (LVDS) transmitter with high signal integrity A differential signal output driver circuit having four switching transistors and having a bias transistor that shields each of the switching transistors from the corresponding output terminal thereby blocking the Miller capacitance of the switching capacitor from g... | 04/25/2006 |
| 7016507 | Method and apparatus for noise reduction particularly in hearing aids This invention describes a practical application of noise reduction in hearing aids. Although listening in noisy conditions is difficult for persons with normal hearing, hearing impaired individuals are at a considerable further disadvantage. Under light noise condi... | 03/21/2006 |
| 7009444 | Temperature stable voltage reference circuit using a metal-silicon Schottky diode for low voltage circuit applications Silicon-based voltage reference circuits that generate a temperature independent voltage reference that is less than even the silicon bandgap potential. The voltage reference circuit includes a diode-connected metal-silicon Schottky diode that is biased with a curre... | 03/07/2006 |
| 7006809 | Adaptive diversity receiver architecture A diversity receiver circuit that adaptively selects a variable number of one or more antennas for use in improving signal quality. Each antenna is provided its own receiver that each generates a representation of a received signal. This adaptive selection offers hi... | 02/28/2006 |
| 7006938 | Reactive sensor modules using Pade' Approximant based compensation and providing module-sourced excitation Reactive sensors typically exhibit nonlinear response to temperature variation. Systems and methods are disclosed for compensating for the nonlinear and/or temperature dependent behavior of reactive sensors and for calibrating the post-compensation output signals re... | 02/28/2006 |
| 6960529 | Methods for sidewall protection of metal interconnect for unlanded vias using physical vapor deposition Methods for protecting the sidewall of a metal interconnect component using Physical Vapor Deposition (PVD) processes and using a single barrier metal material. After forming the metal interconnect component, a single barrier metal is deposited on its sidewall using... | 11/01/2005 |
| 6946828 | Bi-directional current measurement circuit that uses a transconductance amplifier to generate a copy current A current measurement circuit that measures current passing through two loads. The circuit includes a differential output transconductance amplifier. One current output terminal pf the amplifier receives the current from the first load with the first voltage input t... | 09/20/2005 |
| 6940343 | Amplifier Disclosed is an Amplifier (7) comprising an output driver with a first output stage (4) and a second output stage (5), where an input signal is applied non-inverted to the first output stage and inverted to the second output stage, characterized... | 09/06/2005 |
| 6909305 | Digitally controlled impedance driver matching for wide voltage swings at input/output node and having programmable step size A digitally controlled impedance driver circuit including a number of fingers, some of which having FETs and series resistors sized in binary or other differential ratios, and some of the higher power FETs being sized in equal ratio and perhaps sharing a series resi... | 06/21/2005 |
| 6882513 | Integrated overvoltage and reverse voltage protection circuit An integrated overvoltage and reverse voltage protection circuit. The protection circuit includes a field-effect transistor having a source terminal coupled to an input terminal of the protection circuit, and a drain terminal coupled to an output terminal of the pro... | 04/19/2005 |
| 6870398 | Distributed memory and logic circuits Systems and methods are disclosed for distributing memory within one or more regions of circuitry that perform logic functions (or other types of functions that require dense interconnect structures) on an integrated circuit. The distributed memory reduces high dens... | 03/22/2005 |
| 6867640 | Double-sided extended drain field effect transistor, and integrated overvoltage and reverse voltage protection circuit that uses the same An integrated overvoltage and reverse voltage protection circuit that includes two p-channel double-sided extended drain transistors coupled to a high voltage source, each having their n-well coupled through a resistor to the high voltage source. For voltage regulat... | 03/15/2005 |
