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Class Information
Number: 341/169
Name: Coded data generation or conversion > Analog to or from digital conversion > Analog to digital conversion > Intermediate conversion to time interval > Input signal compared with linear ramp
Description: Subject matter where the input analog signal is compared with a linearly increasing signal.


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
7626532 A/D converter Dec. 1, 2009
7616147 Analog-to-digital converter Nov. 10, 2009
7609195 On die thermal sensor and method for generating thermal code of ODTS Oct. 27, 2009
7586432 A/D converter Sep. 8, 2009
7554479 Pseudo-multiple sampling methods, systems and devices for analog-to-digital conversion Jun. 30, 2009
7554478 Single slope analog to digital converter using hysteresis property and analog to digital converting method Jun. 30, 2009
7551116 Semiconductor integrated circuit performing a voltage comparison and preventing deterioration of a voltage comparison accuracy Jun. 23, 2009
7541963 Variable quantization ADC for image sensors Jun. 2, 2009
7541964 Analogue/digital converter microelectronic device for equalising charges Jun. 2, 2009
7532148 Method and apparatus for AD conversion, semiconductor device for detecting distribution of physical quantity, and electronic apparatus May. 12, 2009
7479916 High resolution column-based analog-to-digital converter with wide input voltage range for dental X-ray CMOS image sensor Jan. 20, 2009
7471231 Column parallel readout with a differential sloped A/D converter Dec. 30, 2008
7446684 Readout circuit for an image sensor and analog-to-digital converting method thereof Nov. 4, 2008
7414565 Efficient approach for reducing image transfer time in wireless portable x-ray detectors Aug. 19, 2008
7405688 Analogue-to-digital converter and method for converting an analogue input signal into a digital information Jul. 29, 2008
7379011 Lossless nonlinear analog gain controller in image sensor and manufacturing method thereof May. 27, 2008
7345613 Image processing circuit, imaging circuit, and electronic device Mar. 18, 2008
7319424 Measuring and correcting non-linearity of an internal multi-bit analog-to-digital converter in a delta-sigma analog-to-digital converter Jan. 15, 2008
7304599 Analog-to-digital converter with reduced power consumption in CMOS image sensor Dec. 4, 2007
7256724 Image sensor including variable ramping slope and method Aug. 14, 2007
7250897 CMOS image sensor capable of performing analog correlated double sampling Jul. 31, 2007
7233277 Image pick-up semiconductor device capable of testing operating characteristics of an analog-digital converter thereof Jun. 19, 2007
7227479 Digital background calibration for time-interlaced analog-to-digital converters Jun. 5, 2007
7218265 CMOS image capture device with self-correcting gain characteristic May. 15, 2007
7095355 Low power ADC for imaging arrays Aug. 22, 2006
7078960 Method and system for filter tuning using a digital trim value Jul. 18, 2006
7075474 Ramp waveform generation circuit, analog/digital conversion circuit, imaging device and control method of imaging device Jul. 11, 2006
7009538 High-speed DAC linearity measurement Mar. 7, 2006
6937279 Apparatus for converting analog image data into digital image data in CMOS image sensor Aug. 30, 2005
6927721 Low power A/D converter Aug. 9, 2005
6891111 Signal processing in a vehicle classification system May. 10, 2005
6885331 Ramp generation with capacitors Apr. 26, 2005
6831586 Comparator circuit and method of operating a comparator circuit Dec. 14, 2004
6831588 Range recognizer employing a single range internally partitioned by monotonically increasing boundary values Dec. 14, 2004
6717540 Signal preconditioning for analog-to-digital conversion with timestamps Apr. 6, 2004
6707410 Digital pixel sensor with a dynamic comparator having reduced threshold voltage sensitivity Mar. 16, 2004
6677880 Chopper type voltage comparator and analog/digital converter using the same Jan. 13, 2004
6633335 CMOS image sensor with testing circuit for verifying operation thereof Oct. 14, 2003
6621442 Analog-to-digital conversion with piece-wise non-linear reference waveforms Sep. 16, 2003
6617993 Analog to digital converter using asynchronously swept thermometer codes Sep. 9, 2003
6545624 Image sensor with analog-to-digital converter that generates a variable slope ramp signal Apr. 8, 2003
6538593 Method and apparatus for converting a low dynamic range analog signal to a large dynamic range floating-point digital representation Mar. 25, 2003
6518909 Analog-to-digital converter with multiplexed input channels Feb. 11, 2003
6518900 Circuit configuration for testing and A/D converter for applications that are critical in terms of safety Feb. 11, 2003
6369737 Method and apparatus for converting a low dynamic range analog signal to a large dynamic range floating-point digital representation Apr. 9, 2002
6362767 Methods for simultaneous analog-to-digital conversion and multiplication Mar. 26, 2002
6346907 Analog-to-digital converter having voltage to-time converter and time digitizer, and method for using same Feb. 12, 2002
6310571 Multiplexed multi-channel bit serial analog-to-digital converter Oct. 30, 2001
6285310 Integrating analog/digital converter Sep. 4, 2001
6271785 CMOS imager with an A/D per pixel convertor Aug. 7, 2001

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