Patent application number | Description | Published |
20080297385 | Sigma-Delta Analog-Digital Converter For An Xdsl Multistandard Input Stage - The invention relates to a sigma-delta analogue/digital converter for an xDSL multi-standard input stage for converting an xDSL signal into a digital output signal, where the sigma-delta analogue/digital converter ( | 12-04-2008 |
20090067351 | Power Detector Radio Frequency Multiplexer - Implementations related to systems and devices that make use of a power detector multiplexer are presented herein. | 03-12-2009 |
20090085784 | Integrated Circuit Comprising a Plurality of Digital-to-Analog Converters, Sigma-Delta Modulator Circuit, and Method of Calibrating a Plurality of Multibit Digital-to-Analog Converters - In an integrated circuit including a first multibit digital-to-analog converter and a second multibit digital-to-analog converter, a calibration circuit is provided which is shared between the first and second digital-to-analog converters. | 04-02-2009 |
20090110088 | System and Method for Providing a Versatile RF and Analog Front-End for Wireless and Wired Networks - Embodiments related to analog front-ends for wireless and wired are described and depicted. | 04-30-2009 |
20090189795 | QUANTIZATION ERROR REDUCTION IN PWM FULL-MASH CONVERTERS - Techniques for reducing quantization error in electronic components are described herein. | 07-30-2009 |
20090207058 | SAMPLING ERROR REDUCTION IN PWM-MASH CONVERTERS - Techniques for reducing sampling error in electronic components are described herein. | 08-20-2009 |
20090251349 | MULTIPLE OUTPUT TIME-TO-DIGITAL CONVERTER - A multiple output time-to-digital converter (TDC) and an Analog-to-Digital Converter (ADC) incorporating the multiple output TDC is dislosed. | 10-08-2009 |
20100073102 | IQ-MODULATION SYSTEM AND METHOD FOR SWITCHED AMPLIFIERS - An apparatus and methods for a baseband modulator configured to code amplitude signals into pulse width modulated time signals comprising at least two amplitude levels is disclosed. A pulse width modulator can receive a component signal of a baseband complex signal and generate a discrete-time pulse width modulated signal. This signal can be converted to a continuous time signal, such as a pulse-width modulated time signal and can be shifted to a carrier signal corresponding respectively to the component signal by a switch. Bursts sequences are generated to an input of a switched amplifier for driving operation of the amplifier therein. | 03-25-2010 |
20100080319 | High Bandwidth Modulation and Transmission - This disclosure relates systems and methods for a high bandwidth modulation and transmission of communication signals. | 04-01-2010 |
20110193731 | Analog-to-digital converter using oscillators - An apparatus is provided which has a first analog input and a second analog input. In a particular implementation, the first analog input is coupled to a first controllable oscillator and the second analog input is coupled to a second controllable oscillator. First and second digital output signals generated based on output oscillations from the first controllable oscillator and the second controllable oscillator are combined. | 08-11-2011 |
20120019317 | Self-Oscillating Driver Circuit - A self-oscillating driver circuit includes a driver stage, a feedforward path which is coupled to an input of the driver stage, and a feedback path which couples an output of the driver stage to an input of the feedforward path. The feedforward path includes a feedforward filter which is designed as an active filter. In order to prevent an oscillatory state of the driver circuit at an unwanted frequency, it is proposed that an internal state variable of the feedforward filter be monitored and that the feedforward filter be reset if the value of the monitored internal state variable is outside a predefined range. | 01-26-2012 |
20120082186 | ULTRA-WIDEBAND SIGNAL AMPLIFIER - Amplifier for an ultra-wideband (UWB) signal receiver having a signal input ( | 04-05-2012 |
20120300879 | High Bandwidth Modulation and Transmission - This disclosure relates systems and methods for a high bandwidth modulation and transmission of communication signals. | 11-29-2012 |
20130136267 | Microphone and Method for Calibrating a Microphone - A microphone and a method for calibrating a microphone are disclosed. In one embodiment the method for calibrating a microphone comprises operating a MEMS device based on a first AC bias voltage, measuring a pull-in voltage, calculating a second AC bias voltage or a DC bias voltage, and operating the MEMS device based the second AC bias voltage or the DC bias voltage. | 05-30-2013 |
20130208915 | SYSTEM AND METHOD FOR A PCM INTERFACE FOR A CAPACITIVE SIGNAL SOURCE - In accordance with embodiment, a method includes amplifying signal provided by a microphone to form an amplified signal. The method also includes converting the amplified signal into a frequency-based signal having a frequency dependent on an amplitude of the amplified signal. The frequency-based signal is converted into a pulse code modulated bitstream. | 08-15-2013 |
20140064523 | System and Method for Adjusting the Sensitivity of a Capacitive Signal Source - In accordance with an embodiment, a system for amplifying a signal provided by a capacitive signal source includes an impedance converter having an input node configured to be coupled to a first terminal of the capacitive signal source, and an adjustable capacitive network having a first node configured to be coupled to a second terminal of the capacitive signal source and a second node coupled to an output node of the impedance converter. | 03-06-2014 |
20140132433 | ANALOG-TO-DIGITAL CONVERTER ARRANGEMENT - An analog-to-digital converter arrangement may include an analog amplifier with variable gain; an analog-to-digital converter; a digital reconstruction element including elements to reduce an influence of transients during a change of the variable gain of the analog amplifier. | 05-15-2014 |
20140266260 | Apparatus and a Method for Generating a Sensor Signal Indicating Information on a Capacitance of a Variable Capacitor Comprising a Variable Capacitance - An apparatus for generating a sensor signal indicating information on a capacitance of a variable capacitor including a variable capacitance includes a sensor unit and a compensation unit. The sensor unit is configured to generate a sensor signal indicating information on a varying current flowing through a connection between the sensor unit and the variable capacitor caused by a variation of the capacitance of the variable capacitor while the variable capacitor is biased by a predefined bias voltage. Further, the compensation unit is configured to influence the sensor signal or to provide a compensation signal capable of influencing the sensor signal so that the sensor signal includes less nonlinear signal portions than a sensor signal without the influence of the compensation unit or the compensation signal. | 09-18-2014 |
20140266263 | Apparatus and Method for Determining the Sensitivity of a Capacitive Sensing Device - Embodiments relate to an apparatus for determining a sensitivity of a capacitive sensing device having a sensor capacitor with a variable capacitance. The apparatus includes a measurement module and a processor. The measurement module is configured to determine, in response to a first electrical input signal to the sensor capacitor, a first quantity indicative of a first capacitance of the sensor capacitor and to determine, in response to a second electrical input signal to the sensor capacitor, a second quantity indicative of a second capacitance of the sensor capacitor. The processor is configured to determine the sensitivity of the sensing device based on the determined first and second quantity. | 09-18-2014 |
20140270261 | System and Method for an Oversampled Data Converter - In accordance with an embodiment, a circuit includes an oscillator having an oscillation frequency dependent on an input signal, a digital accumulator having a first input coupled to an output of the oscillator, a digital-to-analog converter (DAC) coupled to an output of the digital accumulator, an analog loop filter coupled to an output of the digital-to-analog converter, and a comparison circuit having an input coupled to an output of the analog loop filter and an output coupled to a second input of the digital accumulator. | 09-18-2014 |
20140341397 | Apparatus and Method for Controlling an Amplification Gain of an Amplifier, and a Digitizer Circuit and Microphone Assembly - A controller for controlling an amplification gain of an amplifier for amplifying a high dynamic range signal for an analog to digital converter comprises an input interface adapted to receive a representation of the high dynamic range signal and a signal compressor adapted to provide a low amplitude representation of the high dynamic range signal, the low amplitude representation having a lower signal amplitude than the high dynamic range signal. A comparator is adapted to compare the signal amplitude of the low amplitude representation with a predetermined threshold and an output interface is adapted to provide a control signal to the amplifier, the control signal being adapted to control the amplification gain of the amplifier such that the amplification gain is lowered when the signal amplitude of the low amplitude representation exceeds the predetermined threshold. | 11-20-2014 |
20150016636 | System and Method for a Microphone Amplifier - In accordance with an embodiment, a two-wire microphone includes an integrated circuit. The integrated circuit includes an amplifier having a power supply connection coupled to a first pin of the integrated circuit and a reference connection coupled to a second pin of the integrated circuit, and an impedance element having a first end coupled to an output of the amplifier and a second end coupled to a first node within the integrated circuit. | 01-15-2015 |
20150023529 | MEMS Devices, Interface Circuits, and Methods of Making Thereof - In accordance with an embodiment of the present invention, a micro-electro-mechanical system (MEMS) device includes a first plate, a second plate disposed over the first plate, and a first moveable plate disposed between the first plate and the second plate. The MEMS device further includes a second moveable plate disposed between the first moveable plate and the second plate. | 01-22-2015 |
20150042496 | METHODS AND DEVICES FOR ANALOG-TO-DIGITAL CONVERSION - Analog-to-digital converter arrangements and corresponding methods are provided, wherein a reduction signal is subtracted from an analog input signal if a signal level of the input signal exceeds a threshold value. | 02-12-2015 |