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9007250 Time-interleaved and sub-band reconstruction approaches to digital-to-analog conversion for high sample rate waveform generation  
The perceived sample rate at which a DAC can operate can be increased by allowing multiple DACs to process different portions of a digital signal in parallel. In this way, the outputs of multiple...
9000965 Current-steering digital-to-analog converter with cancellation of dynamic distortion  
A digital to analog converter includes a first switch, a second switch, and a driver module. The first switch includes a first differential pair of transistors connected to first inputs to receive...
9000969 Variable resolution data conversion in a receiver  
A received plurality of signals may be filtered to select an in-band signal and/or an out-of-band. A signal strength of the selected signal(s) may be measured. A resolution of an analog-to-digital...
9001092 Voltage summing buffer, digital-to-analog converter and source driver of display device including the same  
A digital-to-analog converter includes a first decoder, a second decoder and a voltage summing buffer. The first decoder receives upper bits of a digital signal and upper reference voltages to...
8981982 Multi-zone data converters  
Aspects of a method and system for data converters having a transfer function with multiple operating zones. In some embodiments, an operating zone of the multiple operating zones is characterized...
8981981 Digital-to-analog converter with monotonicity  
Systems and methods provide for the control of a fully-segmented digital-to-analog converter. The selected lead-most current cell of an array in the digital-to-analog converter is addressed...
8970573 Voltage interpolating circuit  
A display driver maps a selection code (a digital signal) to a reference voltage which is then used to produce a particular intensity of the radiation emitted from a pixel on a display screen...
8970418 High output power digital-to-analog converter system  
The present disclosure discloses a digital-to-analog converter (DAC) design which is suitable for providing a high output power high-speed DAC, e.g., in radio frequency applications. The DAC...
8963761 Predictive successive approximation register analog-to-digital conversion device and method  
A predictive successive approximation register analog-to-digital conversion device and method are provided. A difference between two input signals of a comparator is detected according to a...
8928506 Successive approximation analog-to-digital converter (ADC) with dynamic search algorithm  
Aspects of a method and system for a successive approximation analog-to-digital converter with dynamic search algorithms are provided. In some embodiments, a successive approximation...
8928512 Digital to analog converter and method for controlling current source array in digital to analog converter  
A digital to analog converter and a method for controlling a current source array in a digital to analog converter relate to the field of electronics technologies, and are used to reduce a system...
8912940 String DAC charge boost system and method  
Embodiments of the present invention may provide a string DAC with charge boosting. The string DAC may include multiple strings, such as an MSB DAC and an LSB DAC, for converting a digital word...
8912939 String DAC leakage current cancellation  
Embodiments of the present invention may provide a multi-string DAC with leakage current cancellation. A leakage cancellation circuit may be coupled to output node(s) of the—multi-string DAC. The...
8907830 Digital-to-analog converter comprising slow converter section and fast converter section  
A digital-to-analog converter for converting digital values to an analog output signal includes a first converter section and a second converter section operating at different conversion rates. A...
8907832 Polarity compensating dual-string digital-to-analog converters (DACs), and related circuits, systems, and methods  
Polarity compensating dual-string digital-to-analog converters (DACs), and related circuits, systems, and methods are disclosed. In embodiments disclosed herein, a secondary voltage divider of a...
8907831 High-resolution digital to analog converter  
A system includes an N-bit digital-to-analog converter and an M-bit sub-digital-to-analog converter. The N-bit digital-to-analog converter includes 2N resistances connected in series across first...
8896473 Digital-to-analog-converter with resistor ladder  
A digital-to analog-converter (DAC) has a MSB resistor ladder with a plurality of series connected resistors, wherein the MSB resistor ladder is coupled between a first and second reference...
8896472 Low glitch-noise DAC  
An N-bit digital-to-analog converter (DAC) includes N input stages each of which generates the same amount of current and includes a pair of similarly sized transistor switches responsive to...
8884798 Binary divarication digital-to-analog conversion  
Systems and techniques for performing binary divarication digital-to-analog conversion are described. A described converter includes voltage range adjusters arranged in series to convert a digital...
8884799 Dual-string digital-to-analog converters (DACs), and related circuits, systems, and methods  
Dual-string digital-to-analog converters (DACs), and related circuits, systems, and methods are disclosed. In embodiments disclosed herein, a primary voltage divider of the dual string-DAC is...
8866658 Digital-to-analog converter  
A resistor string digital-to-analog converter includes a high-order resistor string, first high-order switches, a high-order decoder, a low-order decoder, and a conversion unit. The high-order...
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...
8836560 Digital to analog converters with adjustable output resolution  
A digital to analog converter (DAC) includes: first and second nodes; a first switching device; a second switching device; and a switch control module. The switch control module selectively...
8836562 ***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Dual-string digital-to-analog converters (DACs), and related circuits, systems, and methods
 
Dual-string digital-to-analog converters (DACs), and related circuits, systems, and methods are disclosed. In embodiments disclosed herein, a primary voltage divider of the dual string-DAC is...
8836554 Digital-to-analog converter (DAC) circuit and weight error estimation/calibration method thereof  
The present invention discloses a DAC circuit and a weight error estimation/calibration method thereof. In the method, an output switching circuit dynamically selects several conversion cells (at...
8830102 Compact digital-to-analog converter  
An example digital-to-analog converter includes a reference scaling circuit receiving a first reference current and generating a second reference current. A first plurality of current sources is...
8823570 Digital-to-analog converter circuit and display driver  
Provided first and second reference voltage set wherein the first reference voltage set includes a part or all of reference voltages of the second reference voltage set, and a decoder including...
8823567 Resonator, delta-sigma modulator, and wireless communication device  
Two T filters, one of which includes two resistive elements and one capacitive element and the other of which includes two capacitive elements and one resistive element, are inserted in a...
8823575 Ad conversion circuit and solid-state image pickup device  
An AD conversion circuit may include: a reference signal generation unit generating a reference signal increasing or decreasing with passage of time; a comparison unit including a first comparison...
8823569 Digital-to-analog converter  
An apparatus and method for digital-to-analog conversion. A digital-to-analog converter includes a sampler for resampling a digital signal and a DAC array. The DAC array includes a sequencer, a...
8816889 Current-steering digital-to-analog converter with cancellation of dynamic distortion  
A digital-to-analog converter (DAC) includes, in a segment of the DAC, a first switch and a second switch. The first switch includes a first pair of transistors having a first set of inputs and...
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...
8760332 Digital-analog conversion apparatus and method  
An apparatus and a method for digital-analog conversion are provided. The apparatus includes a first cell matrix for outputting a current of a signal corresponding to a number of Most Significant...
8749418 Interpolative digital-to-analog converter  
An interpolative digital-to-analog (D/A) converter is adapted to convert a N-bit digital signal into an analog signal, where N is a positive integer greater than 1. The interpolative D/A converter...
8742965 Inherently monotonic high resolution digital to analog converter  
Apparatus implementing a monotonic output digital to analog converter (DAC). A high resolution monotonic DAC may be built from a lower resolution DAC using weighting functions that combine the...
8742967 Analog to digital converter  
An analog to digital converter generating a number of corresponding voltages in response to a number of values of a grey level is provided. The analog to digital converter includes a decoder and...
8736476 Modified first-order noise-shaping dynamic-element-matching technique  
A technique includes selectively enabling a first sequence of unit elements of a plurality of unit elements of a digital-to-analog converter to convert a digital code to a plurality of analog...
8723709 Digital-to-analog converter  
There is provided a digital-to-analog converter including: a mirror circuit including a first transistor to copy a reference current at a predetermined mirror ratio, and a second transistor...
8717214 Precision sub-RADIX2 DAC with linearity calibration  
An N bit sub-binary radix digital-to analog converter (DAC) includes a radix conversion module that converts an m bit digital input signal to an N bit sub-radix DAC code. A ladder module having NL...
8717213 Hybrid resistive digital-to-analog devices  
A differential resistor-based digital-to-analog converter (RDAC) can include a positive digital-to-analog converter (PDAC) stage and a negative digital-to-analog converter (NDAC) stage. A first...
8698663 Digital analog converter  
Embodiments of a digital-to-analog conversion system that utilizes a specialized clock signal to reshape an analog impulse response of a digital-to-analog converter (DAC) are disclosed....
8686884 Testing of digital to analog converters in serial interfaces  
A system and method for testing digital to analog converters (DAC) in a serial interface having a comparator to receive an input signal and a local offset signal is disclosed. A first DAC...
8681031 D/A converter  
A resistor string type D/A converter includes a higher-order decoder to which a digital signal is input, a higher-order resistor string in which a plurality of resistors and a plurality of voltage...
8669892 Digital-to-analog converter resolution enhancement using circular buffer  
A system and method for generating an analog signal is disclosed. In one embodiment, system includes a first-in, first-out (FIFO) buffer configured to receive and store a plurality of digital...
8643517 Gradient-based approach to sample-time mismatch error calibration in a two-channel time-interleaved analog-to-digital converter  
Correcting phase error in a two-channel TIADC system in a manner that is independent of the Nyquist zone(s) occupied by the input signal. In the preferred approach this is done using the gradient...
8633846 Successive approximation register analog to digital converter  
An apparatus implements analog-to-digital conversion with released requirement on the reference settling errors and improved immunity to the noise originated from the power supply, ground and the...
8618971 Signal level shift circuit and method for dual resistor ladder digital-to-analog converters  
A dual resistor ladder DAC includes a coarse ladder including a plurality of coarse ladder resistors and a fine ladder including a plurality of MOS transistors coupled between first and second...
8618968 Dual digital to analog converters (DACs) with codeword parsing  
Dual digital to analog converters (DACs) with codeword parsing. With respect to a codeword that is provided to a DAC, a processing module (e.g., a rollover processor) operates to divide,...
8604959 Multi-phased digital-to-analog converters for interpolation  
A method and device for digital filtering of a digital signal in a radio frequency (RF) device front end are disclosed. In one embodiment, 2M+1 groups of N digital-to-analog converters (DAC) are...
8599057 Digital-to-analog converter  
A system and method for converting a digital signal to an analog signal is provided. The present disclosure provides a digital-to-analog converter (DAC) that can convert a large bit value digital...