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8791844 Modified dynamic element matching for reduced latency in a pipeline analog to digital converter  
A circuit in an analog-to-digital converter (ADC) includes an amplifier configured to receive an output of a backend DAC; a harmonic distortion correction circuit (HDC) coupled to the amplifier and...
8791846 Apparatus and method for calibrating offset voltage and continuous time delta-sigma modulation apparatus including the same  
When an enable signal representing an offset calibration mode is received, a continuous time delta-sigma modulation apparatus generates a first signal using first and second pulse signals...
8792521 Multi-standard front end using wideband data converters  
Embodiments provide an area, cost, and power efficient multi-service transceiver architecture. The multi-service transceiver architecture simplifies receiver/transmitter front ends needed for a...
8791800 Detecting touch input and generating perceptible touch stimulus  
An apparatus including a body portion having a surface; at least one feedback electrode configured to provide to a user a feedback stimulus when the user contacts the surface; and a touch sensor...
8791842 Method and apparatus for decoding data in parallel  
Embodiments of the present invention disclose a data decoding method and apparatus, relate to the field of wireless communications, and can improve a resource utilization rate in a decoding...
8791847 Sigma-delta modulator with trimmed reference voltage for quantizer  
A sigma delta modulator includes a first circuit that receives an analog signal and provides an intermediate signal and a first quantizer signal and further includes a first quantizer that receives...
8792585 Rank estimation device, receiver, communication system, rank estimation method, and program recording medium  
A rank estimation device in which a load on a rank estimation process can be reduced is provided. The rank estimation device of the exemplary embodiment is characterized by comprising a SNR...
8792590 Communications device with in-phase/quadrature (I/Q) DC offset, gain and phase imbalance compensation and related method  
A DC offset estimator and removal circuit removes the DC offsets for each of the I and Q signal components in a received signal. A gain imbalance estimator and compensator circuit estimates and...
8791845 Circuitry and method for reducing area and power of a pipelince ADC  
A pipeline ADC (analog-to-digital converter) (14) includes a residue amplifier (7) for applying a first residue signal (Vres1) to a first input of a residue amplifier (11A) and to an input of a...
8791849 Digital clock update methodology for multi-Nyquist constructive interference to boost signal power in radio frequency transmission  
A system for converting a digital signal to an analog signal, the digital signal having a center frequency, includes: a multi-Nyquist DAC; a clock; and a controller configured to: control the clock...
8791843 Optimized bitstream encoding for compression  
An apparatus includes a first circuit and a second circuit. The first circuit may be configured to generate (i) a compressed representation of an input sequence of characters and (ii) statistics...
8791848 Sigma-delta modulators with excess loop delay compensation  
A sigma-delta modulator is provided for generating a digital output signal. The sigma-delta modulator includes a multi-stage loop filter, a quantizer, and a digital-to-analog converter. The...
8791850 Analog-to-digital conversion with multiple kernels  
An analog-to-digital conversion system includes at least two analog-to-digital conversion units configured to receive a plurality of analog signals and convert the analog signals to digital...
8786478 Circuit for implementing a continuous-time deglitching technique for digital analog converters  
A processor and a circuit implementing a continuous-time deglitching technique for a digital-to-analog converter are disclosed. The circuit includes a digital-to-analog converter having a...
8785838 Absolute rotary encoder  
An absolute rotary encoder comprises a scale having marks arranged at a first pitch; a first detector and a second detector including plural photoelectric conversion elements arranged at a second...
8787559 Codec circuit for POTS system  
A CODEC circuit for POTS system comprises a digital circuit for outputting a digital control signal having a first bit width, the digital control signal being indicative of a voltage to be applied...
8786413 Assisting use of control devices with different electronic devices  
A remote determines an acknowledgement is not received for a command transmitted to a first device, broadcasts a discovery message, receives a response from a second device that received the...
8786544 Low RSI absolute coordinate mouse using optical three-dimensional sensing with mouse click functions  
An absolute coordinate pointing device defines an (x,y) plane drawing region wherein user manipulation of a control element controls (x,y) location of first light source optical energy detectable...
8786471 Lossless data compression with variable width codes  
An aspect of the present invention provides for lossless compression of an input stream using variable width codes. In an embodiment, in each of a sequence of iterations, an output code is emitted...
8786475 Input configuration for analog to digital converter  
A circuit includes an input, two or more sampling capacitors each in a different channel, means for connecting each sampling capacitor to the input, means for discharging the sampling capacitors to...
8788841 Representation and verification of data for safe computing environments and systems  
Techniques for representation and verification of data are disclosed. The techniques are especially useful for representation and verification of the integrity of data (integrity verification) in...
8788099 Position-based step control algorithm for a motion control system  
A motion control interface device includes an FPGA configured to implement a step generation algorithm that generates step control signals for a motion device. The signals are not determined based...
8786472 Low complexity non-integer adaptive sample rate conversion  
Generally described herein are methods and systems for sample rate conversion of non-integer and integer factors. In one or more embodiments an apparatus can include a sample rate converter that...
8786470 Wireless keyboard and computer system using the same  
A computer system includes a wireless keyboard, a reader, and a computer. The wireless keyboard includes an antenna, an array of keys, a storage unit, a scanning unit, and a processing unit. The...
8786479 Digital analog converter circuit, digital driver and display device  
Reference voltages of a reference voltage ensemble are classed into first to (z×S+1)th reference voltage groups, where S is a power of 2 inclusive of 1 and z is a power of 2 plus 1. A decoder ...
8786483 Use of a DLL to optimize an ADC performance  
Embodiments of the present invention may provide an improved apparatus and method for correcting timing errors associated with process, voltage, and temperature effects in asynchronous successive...
8786476 Systems, methods and apparatus for digital-to-analog conversion of superconducting magnetic flux signals  
A superconducting flux digital-to-analog converter includes a superconducting inductor ladder circuit. The ladder circuit includes a plurality of closed superconducting current paths that each...
8786481 Method and apparatus for event detection and adaptive system power reduction using analog compression engine  
The disclosed invention provides for power reduction of electronic building blocks based on the activity of analog signals, or analog signals that have been digitized by a analog-to-digital signal....
8786473 Systems and methods for sharing compression histories between multiple devices  
Systems and methods of storing previously transmitted data and using it to reduce bandwidth usage and accelerate future communications are described. By using algorithms to identify long...
8786474 Apparatus for programmable metastable ring oscillator period for multiple-hit delay-chain based time-to-digital circuits  
An apparatus and method for inserting delay into a start signal of a metastable ring oscillator chain-based time-to-digital circuit (TDC). Included therein is a signal generating circuit that...
8786555 Feedback-providing keypad for touchscreen devices  
Computer-readable media, computerized methods, and a touchscreen device manipulating user-input elements are provided. Generally, manipulation includes identifying a predefined configuration...
8786554 Priority and combination suppression techniques (PST/CST) for a capacitive keyboard  
Apparatus and methods are described for selecting which of a plurality of simultaneously activated keys in a keyboard based on an array of capacitive sensors is a key intended for selection by a...
8786484 Analogue to digital converter, an integrated circuit and medical device  
An analogue to digital converter includes a first input connection to receive a first part of the analogue input signal, a second input connection to receive a second part of the analogue input...
8786480 Data conversion method based on negative β-map  
There is provided a data conversion method based on negative β-map suited for an A/D converter or chaos generator, that is adapted to an integrated circuit and capable of providing stable ...
8787494 Modeling digital predistorter  
Methods and apparatus are disclosed for predistorting an input signal to compensate for non-linear distortions introduced by an electronic device, for example, a power amplifier. The non-linear...
8786747 Imaging apparatus and camera  
An imaging apparatus including a pixel, a current source, and a signal processing circuit. The pixel outputs signal charge, obtained by imaging, as a pixel signal. The current source is connected...
8786477 Digital-to-analog conversion with improved dynamic range  
An audio downlink path is provided including a Dynamic Range Boost (DRB), a modified Digital-to-Analog Converter (DAC), and a modified audio driver gain control to produce a very high Dynamic Range...
8787492 Symbol mapping method for repetition channel coding  
A symbol mapping method for repetition coding is disclosed. The symbol mapping method comprises performing repetition coding on codeword to output repeated codeword symbols, and mapping the...
8786482 Integrated circuit with pin for setting digital address  
In one embodiment, an integrated circuit includes a pin and a current source for driving current through the pin into an external resistor such as a resistor on a circuit board to generate a pin...
8779955 Optical analog-to-digital conversion system and method with enhanced quantization  
A photonic analog-to-digital signal conversion system can utilize an optical phase modulator configured to receive a first signal and a first optical pulse signal and to provide an optical...
8781008 Highly-spectrally-efficient transmission using orthogonal frequency division multiplexing  
A transmitter may map, using a selected modulation constellation, each of C′ bit sequences to a respective one of C′ symbols, where C′ is a number greater than one. The transmitter may proce...
8780047 Keyboard system and method for providing improved access to an electronic device  
An interface system and method are provided for facilitating cross-disability access to an electronic device. A first screen of a plurality of screens is displayed on the electronic device. Each...
8779952 Background calibration of threshold errors in analog to digital converters  
A method of background calibration of threshold errors in a data communication system is provided. In an implementation, the method uses sampler statistics just after foreground calibration as the...
8779956 Sigma-delta converter system and method  
A sigma-delta converter may include a filter coupled to a first summation circuit and a second summation circuit. A multi bit quantizer may be coupled to the second summation circuit. A single bit...
8779957 Low distortion feed-forward delta-sigma modulator  
A low distortion feed forward delta sigma modulator includes a first adder configured to receive a feedback signal and an input signal. The modulator also includes a first integrator configured to...
8779953 Fast test of digital-to-analog converters  
A method and device for testing a digital-to-analog converter is provided. The method may include configuring a decoder to address an individual unit cell of a plurality of unit cells of a...
8781844 Audio coding  
A method for encoding an audio signal including: processing a selected subset of a lower series of samples forming a lower frequency spectral band of the audio signal and a higher series of samples...
8779959 Method of dynamic element matching and an apparatus thereof  
A method to reduce the integral non-linearity (INL) of a digital-to-analog converter (DAC) and a DAC implementing said method are disclosed. The method in this invention is a pseudo dynamic element...
8779958 Continuous time input stage  
A continuous time input stage including a first digital-to-analog converter (DAC) including a first DAC code input, a second DAC including a second DAC code input, a first set of switches coupled...
8776614 Coriolis mass flowmeter providing high accuracy, stable excitation with a short delay while employing digital signal processing  
First and second ΔΣ modulators convert output signals of two sensors into pulse density signals. First and second LPFs convert the pulse density signals into multi-bit signals. A signal computing m...