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Class Information
Number: 341/147
Name: Coded data generation or conversion > Analog to or from digital conversion > Digital to analog conversion > Function generator
Description: Subject matter wherein a series of digital signals is converted to a series of discrete analog values, these values being a particular mathematical function of the input digital signals.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8581765 Low-memory-usage arbitrary waveform representation or generation Nov. 12, 2013
8576103 Rollover operative digital to analog converter (DAC) Nov. 5, 2013
8570203 Method and apparatus for direct digital synthesis of signals using Taylor series expansion Oct. 29, 2013
8537041 Interpolation-based digital pre-distortion architecture Sep. 17, 2013
8519877 Low noise and low power arrangement for playing audio signals Aug. 27, 2013
8514116 Method for improving the resolution and for correcting distortions in a sigma-delta modulator, and sigma-delta modulator implementing said method Aug. 20, 2013
8502720 Parallel digital to analog conversion with image suppression Aug. 6, 2013
8451155 Transmission circuit, ultrasonic probe and ultrasonic image display apparatus May. 28, 2013
8339301 Gamma voltage generator and DAC having gamma voltage generator Dec. 25, 2012
8125363 Digital signal processing device Feb. 28, 2012
8098718 Apparatus and methods for digital-to-analog conversion with vector quantization Jan. 17, 2012
7907073 Variable passive components with high resolution value selection and control Mar. 15, 2011
7893856 Digital-to-analog conversion circuit Feb. 22, 2011
7760119 Waveform generator and test apparatus Jul. 20, 2010
7729300 Class-B transmitter and replica transmitter for gigabit ethernet applications Jun. 1, 2010
7705759 Generation of a digital controlled precise analog sine function Apr. 27, 2010
7642942 Systems and methods for synthesis of a signal Jan. 5, 2010
7593483 Nonlinear mapping in digital-to-analog and analog-to-digital converters Sep. 22, 2009
7545304 Distributed arbitrary waveform generator Jun. 9, 2009
7525468 Variable passive components with high resolution value selection and control Apr. 28, 2009
7446688 Sequence generation for mismatch-shaping circuits Nov. 4, 2008
7436725 Data generator having stable duration from trigger arrival to data output start Oct. 14, 2008
7391842 Direct synthesis clock generation circuits and methods Jun. 24, 2008
7379006 Digital to analog converter calculating a difference between multiple indicators of a multi-bit input signal May. 27, 2008
7345610 High speed digital-to-analog converter Mar. 18, 2008
7342521 System and method for multi-channel delay cell based clock and data recovery Mar. 11, 2008
7286070 RF carrier generator and method thereof Oct. 23, 2007
7259705 Tracking supply AC regeneration system and method Aug. 21, 2007
7193551 Reference voltage generator for use in display applications Mar. 20, 2007
7136003 Clockless pulse shaping circuit for controlling a power amplified output Nov. 14, 2006
7126520 Segmented sawtooth generator Oct. 24, 2006
7095349 Numerically controlled oscillator and method for operating the same Aug. 22, 2006
7092476 Direct synthesis clock generation circuits and methods Aug. 15, 2006
7057543 Low power method and interface for generating analog waveforms Jun. 6, 2006
7058371 Mechanism for modulating wireless communication signals Jun. 6, 2006
6890046 Driving waveform generator and method of generating driving waveform May. 10, 2005
6867625 Method and apparatus for high frequency digital carrier synthesis from plural intermediate carrier waveforms Mar. 15, 2005
6763407 Digital-to-analog converter with plural voltage holding sections, plural step function generators, voltage summing section and integrator Jul. 13, 2004
6657573 Phase to sine amplitude conversion system and method Dec. 2, 2003
6653963 Method and apparatus for the A/D conversion of analog signals and corresponding A/D converter arrangement Nov. 25, 2003
6639535 Digital to analog converter using B spline function Oct. 28, 2003
6549157 Digital-to-analog converting device and method used in home networking system with compensation mechanism to reduce clock jitter Apr. 15, 2003
6492924 Circuits, systems, and methods for signal processors that buffer a signal dependent current Dec. 10, 2002
6448918 Digital/analog converter Sep. 10, 2002
6380878 Digital-to-analog conversion circuit Apr. 30, 2002
6359577 Multiple digital-to-analog system with analog interpolation Mar. 19, 2002
6356224 Arbitrary waveform generator having programmably configurable architecture Mar. 12, 2002
6344813 Digital to analogue converter Feb. 5, 2002
6295015 Reference generator for demodulator calibration Sep. 25, 2001
6252533 Data conversion device Jun. 26, 2001

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