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8493253 N-bit digital-to-analog converting device  
An N-bit digital-to-analog converting device includes: a decoder for converting an N-bit binary digital signal into a multi-bit thermometer code during each cycle of a clock signal alternating...
8493257 Current-switching cell and digital-to-analog converter  
Two D flip-flops (D-FFMA, D-FFMB) output two half-rate signals (DMR-A, DMR-B) by dividing a digital input signal (DM) into two signals and retiming them based on a clock signal (CLK) and a...
8487797 Audio clocking in video applications  
A method of operating an electronic video device such as a DVD player, wherein video clock signals and audio clock signals are derived from a system clock signal using two phase-lock loops, and...
8487799 Calibration for RFDAC  
The RFDAC includes: a multi-phase radio-frequency signal generator configured to generate radio-frequency signals that are different in phase; a vector selector configured to select two...
8483856 System and method for correcting phase noise in digital-to-analog converter or analog-to-digital converter  
A circuit includes a digital oscillator, a phase lock loop (PLL), a digital signal generator, a correction circuit and a digital-to-analog converter DAC (DAC). The digital oscillator can output a...
8483625 Transceivers  
An RF transceiver apparatus comprises transmitter circuitry arranged to convert signals from a baseband frequency to RF transmission frequencies and receiver circuitry arranged to convert signals...
8477052 Method and apparatus for self-test of successive approximation register (SAR) A/D converter  
A single-ended SAR ADC includes an additional capacitor, a self-test engine, and independent control of sample and hold conditions, which allows for quick and accurate testing of the ADC.
8477055 Resistor devices and digital-to-analog converters using the same  
A digital-to-analog converter (DAC) includes: a plurality of first controllers and a plurality of resistor devices. The plurality of first controllers are configured to be selectively switched on...
8471745 Digital to analog converter (DAC) with ternary or tri-state current source  
Digital to analog converter (DAC) with ternary or tri-state current source. A DAC including a number of ternary or tri-state devices operates based upon codewords provided thereto. Generally, each...
8471739 Digital analog converter and method for calibrating sources thereof  
Provided is a digital analog converter that output currents having different magnitudes for a digital input value according to a mapping table. The digital analog converter includes: a plurality...
8471737 System and method for providing high resolution digital-to-analog conversion using low resolution digital-to-analog converters  
DA conversion is performed while improving resolution and reducing the influence of errors. A predetermined weight is applied to an output of at least one of a plurality of DA converters to each...
8472552 Digital linear transmitter architecture  
A digital linear transmitter for digital to analog conversion of a radio frequency signal. The transmitter includes a delta sigma (ΔΣ) digital to analog converter (DAC) and a weighted signal...
8462030 Programmable loop filter for use with a sigma delta analog-to-digital converter and method of programming the same  
The present invention is directed to a programmable loop filter, a method of programming the same and a sigma delta analog-to-digital converter (ADC) incorporating the programmable loop filter or...
8462034 Synchronous switching in high-speed digital-to-analog converter using quad synchronizing latch  
A synchronizing circuit compatible with a quad switching scheme in a digital-to-analog converter (DAC) to synchronize turning on or off of switches for steering current to a differential output....
8456338 Compliance methods for source measure units operating with digital control loops  
A source-measure unit (SMU) may be implemented with respective digital control loops for output voltage and output current. The digital control loop associated with the output that is being...
8456342 Switch sequencing for code-range-specific linearity improvement in digital-to-analog converters  
A digital-to-analog converter (DAC) uses thermometer coding over a certain code range. A switch array for the certain code range is implemented into a smaller area of the integrated circuit die so...
8456343 Switched capacitor type D/A converter  
A switched capacitor type D/A converter receives m-bit (m represents an integer) input data, and outputs an analog signal that corresponds to the input data value. Switch circuits are provided to...
8456340 Self-timed digital-to-analog converter  
A tracking module that tracks the operation of a digital-to-analog converter (DAC). The DAC tracking module may be included on-chip with a DAC, and be formed with similar circuit components as a...
8456341 Three-level digital-to-analog converter  
A system for processing a signal includes a detector configured to detect a two-level stream of bits; a converter configured to generate a three-level control signal based on two adjacent values...
8451157 Double balanced digital transmitter  
A digital-to-analog upconverter directly converts a baseband digital value comprising a plurality of bits to an RF analog signal to combine digital-to-analog operations with frequency upconversion...
8451361 Image pickup device and signal processing method thereof  
An image pickup device is provided, capable of complete correction with data of once analog-to-digital conversion, and prevention of excess use of switches and analog devices and/or erroneous...
8446306 Method for mixing a complex digital signal with a reference signal, mixer and digital-to-analogue converter using the method  
Method and mixer using the method for mixing a complex digital input vector with an oscillator reference signal based on a separation of the mixing process in mainly two processing steps, to with...
8446304 Digital background calibration system and method for successive approximation (SAR) analogue to digital converter  
The invention provides a digital background calibration system and method for a successive approximation analog-to-digital converter comprising a digital to analog converter (DAC) having a...
8441381 Gate leakage compensation in a current mirror  
A method and apparatus is disclosed to compensate for gate leakage currents of thin oxide devices that have very thin oxide layers in a current mirror of a digital-to-analog converter (DAC). The...
8441383 Photonic digital-to-analog conversion (DAC) based on RSOAs  
The present invention is directed to a photonic digital-to-analog converter (pDAC) system. The system may include a mode locked laser, an optical splitter connected to the laser, and a plurality...
8441382 Current steering DAC with switched cascode output current source/sink  
A current-steering digital-to-analog converter may include a plurality of current cells. Each current cell may comprise a dual bias switched cascode output current source/sink, a bias source,...
8441385 Power digital to analog converter  
A digital to analog converter having a plurality of power dividers interconnected into a binary tree configuration, each one having an input and a pair of electrically isolated outputs for...
8427351 Digital-to-analog conversion device  
A digital-to-analog conversion device is disclosed. The digital-to-analog conversion device comprises a variable delay buffer circuit and a plurality of synchronization circuits. The buffer...
8421659 Minimum differential non-linearity trim DAC  
A trim DAC wherein the digital input bits to the trim DAC are controlled by a state machine to produce an analog output that is within a least significant bit of the digital input bits. An...
8416112 Circuitry and method for digital to analog current signal conversion with phase interpolation  
Circuitry and method for digital-to-analog current signal conversion with phase interpolation. For an n-bit digital-to-analog converter (DAC), the number 2n control bits normally required can be...
8410965 Dynamic element matching method and system thereof  
A dynamic element matching method and system thereof is provided. The method includes grouping a plurality of switches into a plurality of groups; allocating a plurality of to-be-turned-on...
8410966 Current DAC  
A current digital-to-analog converter (DAC) is disclosed. The current DAC includes a current reference circuit coupled between a voltage source terminal and a voltage node, wherein the current...
8405530 Encoding data based on weight constraints  
A method for encoding data to be placed into a weight constrained memory array includes designating a set of crosspoints within a crossbar memory array as indicator crosspoints and a set of...
8406540 Multisampling with reduced bit samples  
A relatively non-complex signal processor supporting an active pixel sensor imaging system is disclosed. The signal processor only requires the first sample from a group of samples in a multiple...
8400382 D/A converter circuit, liquid crystal driving circuit, and liquid crystal device  
A digital-to-analog converter circuit is configured to convert an m-bit digital signal into an analog signal. The circuit includes a bit voltage generator convert each bit of segmented n-bit units...
8390491 Buffer to drive reference voltage  
Embodiments of the present invention may provide an integrated circuit that may comprise a first transistor to receive an input voltage signal at its gate and generate an output voltage signal at...
8390496 System and method for common mode translation  
System and method for common mode translation in continuous-time sigma-delta analog-to-digital converters. An embodiment includes a loop filter having an RC network coupled to a differential...
8384576 Output circuit, and data driver and display devices using the same  
An output circuit includes a connection switch and an operation unit. The connection switch receives first and second voltages from first and second terminals, respectively, selects and outputs...
8384573 Low-power digital-to-analog converter  
A digital-to-analog converter (DAC) with a digital segment having a digital data input and an analog segment coupled to the digital segment and having an analog output to output an analog signal...
8384577 Voltage-mode, series-connected, segmented, optically-isolated, power digital-to-analog converter  
A power digital to analog converter may include a course-resolution digital to analog converter for converting a first segment of binary digits into a first analog output having a first voltage....
8378871 Data directed scrambling to improve signal-to-noise ratio  
Provided are methods and systems for performing binary data conversion in digital-to-analog converters (DACs) having sigma-delta modulators and involving data directed scrambling (DDS) algorithms...
8379760 Hybrid heterodyne transmitters and receivers  
Disclosed are hybrid heterodyne transmitters and receivers for use in communications systems, or other systems, and the corresponding methods for hybrid heterodyne transmitting and receiving. A...
8378870 Mismatch shaping for DAC  
The present invention provides a DAC (Digital to Analog Converter) capable of generating a transfer function having a notch for reducing an error signal level in a desired frequency band. The DAC...
8378867 Audio clocking in video applications  
A method of operating an electronic video device such as a DVD player, wherein video clock signals and audio clock signals are derived from a system clock signal using two phase-lock loops, and...
8368576 Pipelined analog-to-digital converter  
An analog-to-digital converter includes a plurality of sequentially cascaded stages, each stage including an amplifier and four copies of a circuit block including a flash and capacitors, in which...
8368569 Data converting device, program and method  
A data conversion device is provided with a data converting means that sequentially converts first data into second data of the number of second bits, wherein an analog signal is quantized into...
8368573 Analog-to-digital converter and digital-to-analog converter  
An A/D converter includes an adjusting circuit to adjust a total of an amount of change of ΣΔ modulated data output from a ΣΔ modulator and an amount of change of dummy data to be constant, and a...
8362936 Circuit and method for optimizing dynamic range in a digital to analog signal path  
A circuit for maximizing dynamic range in a digital to analog signal path comprises an input for receiving an input signal, a first gain stage coupled to the input having a first gain setting, an...
8358230 Low power discrete-time electronic circuit  
A low power discrete-time electronic circuit includes an amplifier, and a variable current supply. The variable current supply is electrically connected to the amplifier, and is utilized for...
8354947 Signal processing apparatus with sigma-delta modulating block collaborating with notch filtering block and related signal processing method thereof  
One signal processing apparatus includes a sigma-delta modulating block and a notch filtering block. The sigma-delta modulating block is arranged to perform a sigma-delta modulation upon a signal...