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8830103 D/A converter  
A digital-to-analog (D/A) converter includes D/A conversion circuits and an amplifier circuit coupled between the D/A conversion circuits. Each D/A conversion circuit includes an R-2R ladder type...
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...
8830099 MDAC with differential current cancellation  
Various embodiments of the invention provide for cancellation of a residue amplifier output charging current at the reference voltage source of the reference buffer thereby preventing the charging...
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...
8823568 Methods and arrangements for high-speed digital-to-analog conversion  
Embodiments may comprise logic such as hardware and/or code for high-speed digital-to-analog conversion of signals. Many embodiments comprise a demultiplexer to distribute sets of bits to...
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...
8816890 Integrated circuit device with programmable blocks and analog circuit control  
An integrated circuit device can include a plurality of analog blocks, including a plurality of programmable analog blocks configurable to provide different analog functions in response to...
8810444 Analog-to-digital converting circuit and accumulation circuit including the same  
An analog-to-digital converting circuit includes a first comparison circuit configured to compare a first analog signal associated with a first digital signal with an analog input signal and...
8803720 RF-DAC cell and method for providing an RF output signal  
An RF-DAC cell is configured to generate an RF output signal based on a baseband signal, a first signal and a second signal. The first signal has a first duty cycle and toggles between first...
8803719 Sample and hold circuit with toggle control and method thereof  
A sample and hold circuit and the method thereof are disclosed. The sample and hold circuit may be applied in voltage regulators or other circuits. The sample and hold circuit comprises: an input...
8803718 Glitch free dynamic element matching scheme  
A dynamic element matching (DEM) scheme is implemented in a crawling code generator for converting a b-bit binary input code into a (2b−1)-bit digital output code. A random generator determines...
8803721 System and method for improving speed and power in a switched-capacitor amplifier  
A multiplying analog-to-digital converter (“MDAC”) that reduces the power consumption of the MDAC by at least 2.3 times by improving the feedback factor. The amplifier may include a feed forward...
8797198 Linearized optical digital-to-analog modulator  
A modulator device for converting digital data into modulation of an optical signal includes an electronic input for receiving an input data word of N bits and an electrically controllable...
8797201 Driving circuit  
A driving circuit includes a plurality of reference voltage lines and a digital to analog converter. The reference voltage lines are configured for respectively transmitting different grayscale...
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...
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...
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...
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...
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...
8779963 Reconfigurable multiple-path pipeline ADC architecture incorporating multiple-input signal-averaging MDAC  
A pipeline analog-to-digital converter (ADC) includes a first conversion stage of the pipeline ADC that receives an input signal and that comprises, in a first signal path, a first ADC that...
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...
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...
8773296 Interleaved digital to analog conversion  
A method and apparatus for interleaving high-speed, delta-sigma based over-sampled DACs. A delta-sigma modulator is decomposed into a parallel poly-phase block-filter running at a lower rate. The...
8773297 System and method for pulse width modulation digital-to-analog converter  
A system and method is disclosed for a digital to analog converter which includes an interpolation filter to up-sample a digital signal, a noise shaping modulator to suppress in-band quantization...
8766838 Method and apparatus for performing modulation of a radio frequency signal  
A method and apparatus for performing modulation of a radio frequency, RF, signal within a digital-to-RF converter. The method includes determining a desired digital control word switching...
8766837 Modulator and ΔΣ-type D/A converter  
The disclosed device easily and precisely satisfies a requested output range, and is provided with: a ΔΣ-modulator (12) which converts a digital input signal to a pulse signal; an input comparison...
8766840 System and method for a high resolution digital input class D amplifier with feedback  
A system and method is disclosed for a digital input Class D amplifier which includes an interpolation filter to up-sample a digital signal, a noise shaping modulator to suppress in-band...
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...
8754796 D/A conversion circuit and semiconductor device  
A D/A conversion circuit in accordance with the present invention, which is provided with a switch swD, allows a writing operation of a voltage (a true gradation voltage) to be performed at a...
8754970 Solid-state image capture device and control method and control program therefor  
A solid-state image capture device including: a pixel having a photoelectric conversion element and first to fourth switch elements; a reference-signal generator that generates a reference signal;...
8754800 Methods and arrangements for high-speed analog-to-digital conversion  
Logic such as hardware and/or code for high-speed analog-to-digital conversion of a signal. Logic may receive an analog signal as an input to a sampling receiver. The sampling receiver may...
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...
8743102 Gamma tab voltage generator  
A gamma tab voltage generator includes a plurality of, a data calculator configured to generate a buffer selection information and a buffer combination information based on a current capacity of...
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...
8742966 Output device  
An output device receives a data signal, outputs an output signal corresponding to the data signal in synchronization with a clock signal, and includes a driving unit configured to drive an output...
8736393 Variable capacitance integrated electronic circuit module  
A digitally controlled variable capacitance integrated electronic circuit module (100) comprises a set of basic cells in a matrix arrangement. Each basic cell itself comprises a functional block...
8736474 Delta-sigma modulator for converting an analog input signal to a digital output signal using delta-sigma modulation  
A delta-sigma modulator includes: a loop filter for processing an analog input signal and a feedback signal to generate a filtered signal; a noise coupler operable to generate a noise coupled...
8736472 Volume adjusting circuit and volume adjusting method  
A volume adjusting circuit which converts a digital audio signal to an analog signal by a D/A converter and outputs the analog signal includes: a first gain variable circuit unit which controls a...
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...
8736477 Low-memory-usage arbitrary waveform representation or generation  
This disclosure describes techniques and apparatuses for low-memory-usage arbitrary waveform representation or generation. These techniques and/or apparatuses enable representation and/or...
8736478 Digital-to-analog converter  
A digital-to-analog converter (DAC) has a pulse-width encoder that generates a charging pulse having a pulse width proportional to the DAC's digital input value. The charging pulse controls a...
8736475 FIRDAC with RTZ/RTO voltage-mode elements  
A FIRDAC with a return-to-zero or return-to-open drive uses multiple DACs receiving delayed copies of a digital input data signal to reduce thermal noise and intersymbol interference to produce a...
8730363 Analog-digital converter, analog-digital conversion method, image pickup device, method of driving the same, and camera  
An analog-digital converter includes: comparators disposed to correspond to analog signals which are converted into digital signals and configured to compare a voltage value of the analog signal,...
8723712 Digital to analog converter with current steering source for reduced glitch energy error  
A digital to analog converter including at least one current steering source and a master replica bias network. Each current steering source includes a data current source, two switches, two...
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...
8717212 Bandpass-sampling delta-sigma demodulator  
An improved quadrature bandpass-sampling delta-sigma analog-to-digital demodulator is provided, which includes a loop filter, an A/D responsive to the loop filter, and a first feedback D/A...
8717211 Adaptive gain adjustment system  
Techniques for adaptive gain adjustment in a signal processing path to achieve greater dynamic range. In an exemplary embodiment, a digital gain is applied to a digital input signal based on a...
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...