Patent application number | Description | Published |
20090052683 | Echo cancellation - Implementations related to echo cancellation are depicted and described herein. | 02-26-2009 |
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 |
20100213999 | Dynamic Element Matchinig for Delay Lines - This disclosure relates to dynamic element matching in delay line circuits to reduce linearity degradation and delay line mismatching. | 08-26-2010 |
20110050475 | ANALOG TO DIGITAL CONVERTER WITH DIGITAL FILTER - Disclosed herein are devices, methods, and techniques including analog to digital converters having at least one digital filter. | 03-03-2011 |
20110115453 | NONLINEAR CONTROL LOOP FOR DC-DC CONVERTERS - A nonlinear converter, such as a DC-DC converter, includes a nonlinear controller configured to receive an output voltage and a current, and configured to generate a PWM signal. The PWM signal is generated based on setting the converter to a first phase associated with both buck and boost modes when a clock signal is asserted, and selecting a second phase associated with the buck mode of the converter, if a sliding function signal achieves a first predetermined relationship with respect to a buck threshold before a next clock signal is asserted, or selecting a third phase associated with the boost mode of the converter, if the sliding function signal achieves a second predetermined relationship with respect to a boost threshold before a next clock signal is asserted. The nonlinear converter may include a power stage configured to provide the output voltage and a coil current to the nonlinear controller. | 05-19-2011 |
20110210707 | PULSE MODULATION CONTROL IN A DC-DC CONVERTER CIRCUIT - In a device, a pulse modulation switching logic is provided to generate switching signals of a pulse modulator so as to generate a pulse modulated signal with a first pulse modulation control parameter and a second pulse modulation control parameter. The first pulse modulation control parameter is controlled on the basis of a first control signal, and the second pulse modulation control parameter is controlled on the basis of a second control signal. A first control loop is provided to generate the first control signal from an output signal derived from the pulse modulated signal. A second control loop is provided to generate the second control signal on the basis of the output signal. The first and second control signals are applied to concurrently control the first and second pulse modulation control parameters. | 09-01-2011 |
20110268173 | METHOD FOR ADAPTING FILTER CUT-OFF FREQUENCIES FOR THE TRANSMISSION OF DISCRETE MULTITONE SYMBOLS - The invention creates a method for adapting filter cut-off frequencies for the transmission of discrete multitone symbols, where a transmit symbol datastream consisting of discrete multitone symbols is applied to an interpolation device, the transmit symbol datastream is interpolated with a symbol rate in the interpolation device, an interpolated symbol datastream is filtered in a first low-pass filtering device in accordance with a first filter cut-off frequency, which can be predetermined by a first filter cut-off frequency determining device, a digital symbol datastream obtained after a digital-analog conversion, transmission and analog-digital conversion, is filtered at the receiver end in a second low-pass filtering device in accordance with a second filter cut-off frequency, which can be predetermined by a second filter cut-off frequency determining device, in order to provide an equalized symbol datastream, the equalized symbol datastream is decimated in a decimation device and the decimated received symbol datastream consisting of discrete multitone symbols is provided to a multitone receiver device. | 11-03-2011 |
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 |
20140139296 | PULSE MODULATION CONTROL IN A DC-DC CONVERTER CIRCUIT - In a device, a pulse modulation switching logic is provided to generate switching signals of a pulse modulator so as to generate a pulse modulated signal with a first pulse modulation control parameter and a second pulse modulation control parameter. The first pulse modulation control parameter is controlled on the basis of a first control signal, and the second pulse modulation control parameter is controlled on the basis of a second control signal. A first control loop is provided to generate the first control signal from an output signal derived from the pulse modulated signal. A second control loop is provided to generate the second control signal on the basis of the output signal. The first and second control signals are applied to concurrently control the first and second pulse modulation control parameters. | 05-22-2014 |
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 |
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 |
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 |