Patents
Sitemap › H03 - Basic electronic circuitry › H03M - Coding, decoding or code conversion, in general › H03M 1 - Analogue/digital conversion; Digital/analogue conversion
Patents for H03M 1 - Analogue/digital conversion; Digital/analogue conversion (31,168)
11/2003
11/04/2003US6642879 Method and system for powering down an analog-to-digital converter into a sleep mode
11/04/2003US6642877 Method of forming D/A resistor strings with cross coupling switches
11/04/2003US6642875 PWM converting circuit, D/A converter and PWM converting method with improved resolution
11/04/2003US6642873 Multi-level D/A converter incorporated with multi-level quantizer in multi-bit sigma-delta A/D converter
11/04/2003US6642871 Analog/digital converter with error automatic calibration function
11/04/2003US6642870 Method and device for integrated testing for an analog-to-digital converter
11/04/2003US6642869 Piecewise linear calibration method and circuit to correct transfer function errors of digital to analog converters
11/04/2003US6642868 Apparatus and method for the correction of DC offset in data bus structures at the receiver
11/04/2003US6642867 Replica compensated heterogeneous DACs and methods
11/04/2003US6642866 Data converter with background auto-zeroing via active interpolation
11/04/2003US6642859 Accurate and efficient calibrating device and method
11/04/2003US6642736 Tester for semiconductor integrated circuits and method for testing semiconductor integrated circuits
10/2003
10/30/2003WO2003090359A2 Multi-pass analog to digital converter
10/30/2003WO2001093429A3 Track/attenuate circuit and method for switched current source dac
10/30/2003US20030201928 System and apparatus for reducing the effects of circuit mismatch in analog-to-digital converters
10/30/2003US20030201927 Analog-to-digital conversion method and device
10/30/2003US20030201925 A/d converter with noise elimination function
10/30/2003US20030201924 Digital-to-analog converter
10/30/2003US20030201923 Digital to analog converter
10/30/2003US20030201922 Sigma-delta analog-to-digital converter and method
10/30/2003US20030201921 Digital-to-analog conversion circuitry incorporating a simplified testing circuit
10/30/2003US20030201823 System and apparatus for reducing offset voltages in folding amplifiers
10/30/2003US20030201818 Analog switch circuit
10/30/2003US20030201788 Reference voltage generating device, semiconductor integrated circuit including the same, and testing device and method for semiconductor integrated circuit
10/30/2003DE19937737C2 Vorrichtung zum sicheren Überwachen der Drehbewegung einer Welle An apparatus for safely monitoring the rotational movement of a shaft
10/29/2003EP1357668A1 Device and method for generating digital signals coding each a value of an analogue signal
10/29/2003EP1356313A2 High speed filter
10/29/2003CN1452314A Automatic track feedback circuit and high-speed A/D converter therewith
10/29/2003CN1452247A Changeable output characteristics semiconductor IC device
10/29/2003CN1126263C Device and method for data compression and expansion of audio signals
10/29/2003CN1126260C Resistor string D/A converter with pulse width modulation output
10/29/2003CN1126259C Analog to digital converter with successive approximation
10/29/2003CN1126258C Method and device for analogue to digital conversion
10/28/2003US6639540 A/D converter with noise elimination function
10/28/2003US6639539 System and method for extending the dynamic range of an analog-to-digital converter
10/28/2003US6639537 Highly linear analog-to-digital conversion system and method thereof
10/28/2003US6639536 Digital-analog converter
10/28/2003US6639535 Digital to analog converter using B spline function
10/28/2003US6639534 Digital-to-analog converter switching circuitry
10/28/2003US6639533 Digital to analog converter having low power consumption
10/28/2003US6639530 Modulation of an analog signal into a digital representation thereof
10/28/2003US6639529 System and method for delay calibration in position encoders
10/28/2003US6639528 Apparatus for multi-channel signal processing and communication terminal using the same
10/28/2003US6639408 Battery voltage measurement device
10/23/2003WO2003088498A1 Differential input flash analog to digital converter
10/23/2003WO2002023731A3 Methods and systems for digital dither
10/23/2003US20030197636 High resolution, high speed, low power switched capacitor analog to digital converter
10/23/2003US20030197634 Variable-output-characteristic semiconductor integrated circuit device
10/23/2003US20030197633 Efficient data-directed scrambler for noise-shaping mixed-signal converters
10/23/2003US20030197631 Reponse-based analog-to-digital conversion apparatus and method
10/23/2003US20030197137 Method and apparatus for phototransistor pulse width converter
10/22/2003EP1354470A2 Reduction of contouring in liquid crystal on silicon displays by dithering
10/22/2003EP1354408A2 Method and apparatus for use in switched capacitor systems
10/22/2003CN1450723A Apparatus for converting digital value into anglog signal
10/22/2003CN1450722A High-resolution digital-analog converting circuit and method
10/22/2003CN1450549A Signal processing device and D/A converter
10/22/2003CN1125459C Sound processing method sound processor and recording/reproduction device
10/21/2003US6635859 Method and apparatus for light to frequency conversion
10/16/2003WO2003085835A1 Analog-to-digital conversion using non-linear magneto-electronic apparatus
10/16/2003WO2003085834A1 Method and device for functionally testing an analog-to-digital converter, and a corresponding analog-to-digital converter
10/16/2003WO2003063499A3 Methods and systems for start code emulation prevention and data stuffing
10/16/2003WO2002071616A3 Methods and systems for dsp-based receivers
10/16/2003WO2002023727A3 Method and apparatus for mismatch shaping of an oversampled converter
10/16/2003US20030194083 Separation of ring detection functions across isolation barrier for minimum power
10/16/2003US20030193425 Low power consumption pipelined analog-to-digital converter
10/16/2003US20030193324 System for difference calculation using a quad slope converter
10/15/2003EP1353445A2 D/A converter
10/15/2003EP1353444A1 Apparatus for converting a digital value into an analog signal
10/15/2003CN1449598A A/d converter calibration
10/15/2003CN1449167A Analog-digital hybrid circuit of fast Fourier transform and inverse transform and application in communication system thereof
10/15/2003CN1449166A Analog-digital hybrid circuit of fast Fourier transform and inverse transform and application in communication system thereof
10/15/2003CN1449118A A/d转换器电路 A / d converter circuit
10/15/2003CN1449117A Method and equipment for detecting random error code
10/15/2003CN1448982A Method for increasing pass percentage of A/D conversion chip and product thereof
10/15/2003CN1124487C Apparatus and method used for monitoring humidity
10/14/2003US6633618 Method and apparatus for digitally removing a DC-offset smaller than one LSB
10/14/2003US6633335 CMOS image sensor with testing circuit for verifying operation thereof
10/14/2003US6633250 Average bubble correction circuit
10/14/2003US6633249 Low power, scalable analog to digital converter having circuit for compensating system non-linearity
10/14/2003US6633248 Converting digital signals to analog signals
10/14/2003US6633247 Logarithmic a/d converter, method of logarithmic a/d conversion logarithmic d/a converter, method of logarithmic d/a conversion, and system for measuring physical quantity
10/14/2003US6633246 Converter circuit with reduced area switch compensation resistance
10/14/2003US6633245 Method and system for correcting quantization loss during analog to digital to analog signal conversion
10/09/2003WO2003084072A2 Analog-to-digital conversion
10/09/2003WO2003084071A1 Comparator offset calibration for a/d converters
10/09/2003WO2002084883A3 Method and circuit for linearising non-linear curves
10/09/2003WO2002023728A3 Method and apparatus for mismatched shaping of an oversampled converter
10/09/2003WO2002019532A3 Method and device for converting an analog input signal into a sequence of digital output values
10/09/2003US20030190007 Jitter reduction
10/09/2003US20030189508 Flash analog-to-digital converter
10/09/2003US20030189507 Flash analog-to-digital converter
10/09/2003US20030189506 Difference amplifier for digital-to-analog converter
10/09/2003US20030189505 Signal processing device having a D/A converter with a reduced circuit area without sacificing the resolution
10/08/2003EP1351400A2 Quad switched gain circuit
10/08/2003EP1351399A1 Combined multiplexer and switched gain circuit
10/08/2003EP1350325A2 Analog-to-digital converter and method for converting an analog signal into a digital signal
10/08/2003CN1447527A A/D converter
10/08/2003CN1447526A A/D converter of adopting improved type fold circuit
10/08/2003CN1123975C ELectronic digital-to-analog converter circuit for baseband transmission system
10/07/2003US6631341 Signal analyzing apparatus
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