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8847805 Delta-sigma modulator with high input impedance  
Measurement circuits having a delta-sigma modulator are disclosed. One example measurement circuit includes a low pass filter coupled to receive an input voltage, a switched-capacitor integrator...
8847809 Variable quantization ADC for image sensors  
An A/D converter suitable for use in a system in which the signal power of noise increases with the signal power of the signal, such as an imaging system, utilizes a variable quantization system...
8847806 Digital to analog converter comprising mixer  
One example described herein relates to a digital to analog converter (DAC). The DAC includes a digital signal input configured to receive a multi-bit digital input signal, and a plurality of cells...
8847578 Ambient noise cancellation in pulsed input system  
Embodiments of the invention provide a pulseoximetry system with ambient offset cancellation that subtracts an estimated ambient offset to thereby allow a large front end gain while operating the...
8847808 Process, voltage, and temperature insensitive biasing  
A biasing circuit facilitates process, temperature, and voltage insensitive operation of a circuit block. The biasing circuit may include a replicate circuit corresponding to the circuit block. The...
8847804 Delay compensated continuous time sigma delta analog-to-digital converter  
A continuous time sigma delta analog to digital converter is provided. The continuous time sigma delta analog to digital converter may include, but is not limited to, an analog to digital converter...
8847801 Calibration systems and methods for digital-to-analog converter  
Circuits, methods, non-transitory storage media can be configured to reduce calibration errors in a signal converter. A digital-to-analog converter can include a calibration circuit configured to...
8847811 Serial-ripple analog-to-digital conversion  
Examples are provided for converting an analog signal to a digital output signal using serial-ripple analog-to-digital conversion (ADC). An ADC circuit may include conversion stages coupled in...
8847799 Methods and systems for storing sequence read data  
The present invention generally relates to storing sequence read data. The invention can involve obtaining a plurality of sequence reads from a sample, identifying one or more sets of duplicative...
8847807 Switching scheme for ISI mitigation in data converters  
Embodiments of the present disclosure may provide a switching scheme for tri-level unit elements with ISI mitigation. A tri-level unit element may include a first and second current source and a...
8847802 Microcontroller ADC with a variable sample and hold capacitor  
An ADC module includes an analog to digital converter coupled with an analog bus, wherein the an analog to digital converter comprises a main sample and hold capacitor; and a plurality of...
8848813 OFDM PAR reduction by substituting original in-band subcarriers after clipping  
A peak-to-average ratio (PAR) of a signal is reduced by clipping the signal at a threshold level and replacing desired frequency tones of the clipped signal with set of frequency tones of the...
8847796 Data decompression utilizing pre-expanded dictionaries during decompression  
According to one embodiment, a computer-implemented method of decompressing compressed data is described. A first decompression dictionary is analyzed, the first decompression dictionary including...
8847810 Pulse phase difference coding circuit  
In a pulse phase difference coding circuit, a count unit includes a plurality of partial counters connected to each other in series so that the most significant bit of an output of the previous...
8847795 Delay-optimized overlap transform, coding/decoding weighting windows  
Coding/decoding of a digital signal, consisting of successive blocks of samples, the coding being of the transform with overlap type and comprising, upon analysis, the application of a weighting...
8848839 Data carrier provided with at least two decoding stages  
In a data carrier (1) which includes receiving means (5) for receiving a modulated carrier signal (MTS) which contains a data signal (DS1) encoded in conformity with an encoding method (MA, PW, MI,...
8847800 Buffer offset modulation  
One or more techniques for buffer offset modulation or buffer offset cancelling are provided herein. In an embodiment, an output for a sigma-delta analog digital converter (ADC) is provided using...
8849219 DA converter and wireless communication apparatus  
In general, according to one embodiment, a DA converter configured to convert a digital signal comprising n (n>1) bits to an analog current to output the analog current from an output terminal,...
8847797 Byte-aligned dictionary-based compression and decompression  
A system reads a metadata byte in a compressed data fragment. The metadata byte includes information pertaining to a sequence of instruction sets to decode data in the compressed data fragment. The...
8847812 Time-to-digital conversion stage and time-to-digital converter including the same  
In a time-to-digital conversion stage, a time-to-digital conversion circuit outputs an n-bit digital signal, which represents an integer value ranging from −(2n-1−1) to +(2n-1−1), based on a phase...
8847798 Systems and methods for data compression and parallel, pipelined decompression  
A method of data compression includes obtaining a data set comprising a sequence of data blocks comprising a predetermined number of data items, partitioning said data set into one or more groups...
8847803 Parallel multibit digital-to-digital sigma-delta modulation  
Digital input words are received in parallel by a parallel digital-to-digital sigma-delta modulator. Error words corresponding to quantization error are added in parallel to the input words to form...
8848079 Solid-state imaging device and imaging system using buffered counter value of a counter  
A solid-state imaging device includes a plurality of pixels arranged in a matrix, a plurality of readout circuits provided in each column of the plurality of pixels arranged in a matrix, configured...
8847145 Method for working out the angular position of a rotating element and device for carrying out such a method  
Method for working out the angular position of a rotating element, using at least one light source emitting a light beam in the direction of a fixed sensor and computing elements for processing an...
8847144 Enhanced optical reflective encoder  
An optical encoder and optical encoding system are disclosed. Specifically, an encoder having a light detector elevated relative to a light source is described. The relative height difference...
8842032 Enhanced second order noise shaped segmentation and dynamic element matching technique  
A method and circuit to perform noise shaped splitting of a digital input signal may include using multiple layers to process the input signal. In the first layer, the most significant bits of the...
8843456 Database table compression  
Embodiments relate to table compression in a database. The database is organized in tables including rows and columns An aspect includes defining a range partition of a table of the database...
8842760 Enhanced multi user MIMO scheduling  
A spatial multiplexing scheduler in, for example, an eNB or other base station, determines rank n precoders for UEs. Each UE reports the preferred precoder from this set of rank n precoders. The...
8842026 Symbol decoder, threshold estimation and correlation systems and methods  
A threshold estimate system includes a level quantizer, a correlation mechanism, and a threshold adaptation component. The level quantizer is configured to receive an input signal and to generate a...
8841594 Ramp signal generator and image sensor  
Disclosed are a ramp signal generator and an image sensor. The ramp signal generator includes: a comparator comparing a first bias voltage input to a first input terminal and a second bias voltage...
8842028 Optical digital-to-analog converstion  
The present invention relates to Digital-to-Analog conversion in the optical or photonic domain. The present invention provides a digital-to-analog converter (DAC) (100) arranged to receive an...
8842027 Analog to digital converter and method for evaluating capacitor weighting of digital-to-analog converter thereof  
A method for evaluating capacitor weighting of an analog-to-digital (ADC) is provided. An equivalent weighting value of each composed capacitor in each sub-capacitor-array may be obtained by adding...
8842075 Apparatus and method for displaying symbols on a terminal input area  
A terminal has an input area that supports touch input, and a controller for responding to the touch input area. The controller also displays selected symbols in the touch input area responsive to...
8842033 Dynamic linearity corrector for digital-to-analog converters  
A predistortion generator includes a sample input, a summing circuit to output predistorted samples to a DAC, and distortion term processors, each including a product generator and a FIR filter in...
8842034 Resistor network implemented in an integrated circuit  
A resistor network implemented in an integrated circuit includes a first plurality of interconnect traces coupled in series at a first plurality of nodes; a first plurality of switches coupled...
8841937 Analog sample circuit with switch circuit  
Techniques pertaining to an analog sample circuit are disclosed. One embodiment of the analog sample circuit shows characteristics of low distortion and high linearity, which can be used in many...
8842031 Delta-sigma modulator with limiter  
The stability of a delta-sigma modulator may be improved by limiting a value within the delta-sigma modulator. For example, the value provided to a quantizer may be limited, by a limiter circuit in...
8842855 Sound volume control circuit  
A sound volume control circuit includes: a first operational amplifier; a variable resistor circuit connected between an output and an inverting input of the first operational amplifier and having...
8842029 Area-efficiency delta modulator for quantizing an analog signal  
The invention comprises sample-and-hold circuit and digital-to-analog converter into a differentially operational unit. In analog-to-digital conversion unit, on the premise of fixed or non-fixed...
8843343 Failsafe image sensor with real time integrity checking of pixel analog paths and digital data paths  
A method of testing analog and digital paths of a pixel in a row of an imager, includes the following steps: (a) injecting first and second charges into the analog path of the pixel, wherein the...
8842030 Sigma-delta analog to digital converter with improved feedback  
A sigma-delta analog-to-digital converter includes an input transconductance stage that provides an analog input current proportional to an analog input voltage and a current summing stage that...
8842025 Method of setting specific scan codes for manual input device  
A method of setting specific scan codes for a manual input device includes the steps of establishing a transmission channel between the manual input device and a scan code register of a computing...
8837616 Equalization of a distributed pilot OFDM signal  
A technique for equalizing a distributed pilot OFDM signal with decision feedback involves correlating a received OFDM signal against a pilot reference to obtain a coarse channel estimate, where...
8836563 Analog to digital converter (ADC) with comparator function for analog signals  
This disclosure relates to analog to digital converter (ADC) component with a comparator function for analog signals.
8836561 Digital to-analog conversion circuit  
A D/A conversion circuit includes: current generation circuits each including a constant current source configured to generate a current, a first MOSFET connected to the constant current source and...
8836559 Capacitive digital to analog converter  
Some examples relate to a digital to analog converter (DAC). The DAC includes a digital signal input configured to receive a multi-bit digital input signal, and an array of cells. Respective cells...
8836550 System and method for digitally correcting mismatches in multipath ADCs  
A system and method of reducing the effects of nonidealities of ADCs in multipath converters is disclosed. The system and method employs a variety of measure and correction blocks to determine...
8836525 Isolated resistive current sensor  
An isolated current-sensing system for use with a resistive current sense element includes an analog front-end configured to receive a voltage from the resistive current sense element, and to...
8839009 Systems and methods for decimation based over-current control  
The present inventions are related to systems and methods for data processing, and more particularly to systems and methods for power governance in a data processing system. In some such systems...
8836376 Comparator and A/D converter  
A comparator includes: a differential amplifier of which operational state is switched in response to a clock-signal, and which outputs a first intermediate-output corresponding to a first...