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Class Information
Number: 341/157
Name: Coded data generation or conversion > Analog to or from digital conversion > Analog to digital conversion > Intermediate conversion to frequency or number of pulses
Description: Subject matter wherein the input analog signal is converted to a signal the frequency of which is proportional to the value of the input signal or is converted to a pulse signal the number of pulses of which is proportional to the value of the input signal.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7388530 |
A/D-converter |
Jun. 17, 2008 |
| 7388534 |
Adaptive data acquisition for an imaging system |
Jun. 17, 2008 |
| 7376349 |
Analog to digital converter systems and methods |
May. 20, 2008 |
| 7355544 |
TAD A/D converter in which pulse delay circuit is initialized prior to each conversion operation for deriving an output digital value |
Apr. 8, 2008 |
| 7345614 |
Analog to digital converter with a series of inverting elements |
Mar. 18, 2008 |
| 7330144 |
Analog-to-digital conversion method and analog to digital converter |
Feb. 12, 2008 |
| 7324035 |
Amplifier with pulse coded output and remote signal reconstruction from the pulse output |
Jan. 29, 2008 |
| 7321731 |
Optical pulse position modulation discriminator |
Jan. 22, 2008 |
| 7315270 |
Differential delay-line analog-to-digital converter |
Jan. 1, 2008 |
| 7312738 |
Apparatus and method for sigma delta signal treatment |
Dec. 25, 2007 |
| 7292176 |
Delay line, analog-to-digital converting device and load-sensing circuit using the same |
Nov. 6, 2007 |
| 7292175 |
Method of testing A/D converter circuit and A/D converter circuit |
Nov. 6, 2007 |
| 7268719 |
Analogue to digital conversion device operable on different sampling clocks |
Sep. 11, 2007 |
| 7265700 |
Method and apparatus for extracting individual pulses from an input signal |
Sep. 4, 2007 |
| 7248197 |
A/D converter that is implemented using only digital circuit components and digital signal processing |
Jul. 24, 2007 |
| 7242341 |
Analog-to-digital converter and analog-to-digital conversion method |
Jul. 10, 2007 |
| 7196651 |
Analog-to-digital converter (ADC) |
Mar. 27, 2007 |
| 7152010 |
Calibrating an analog-to-digital converter using a test signal with a precise DC voltage |
Dec. 19, 2006 |
| 7106239 |
Rail-to-rail delay line for time analog-to-digital converters |
Sep. 12, 2006 |
| 7095353 |
Frequency to digital conversion |
Aug. 22, 2006 |
| 7084802 |
Signal processing circuit |
Aug. 1, 2006 |
| 7030803 |
Analog-to-digital converter and method of analog-to-digital conversion |
Apr. 18, 2006 |
| 6958721 |
Matched delay line voltage converter |
Oct. 25, 2005 |
| 6940443 |
Analog to digital converter with a pulse delay circuit |
Sep. 6, 2005 |
| 6831585 |
Distributed averaging analog to digital converter topology |
Dec. 14, 2004 |
| 6809676 |
Method and system for VCO-based analog-to-digital conversion (ADC) |
Oct. 26, 2004 |
| 6798372 |
Switched-capacitor frequency-to-current converter |
Sep. 28, 2004 |
| 6788230 |
Multi-channel A/D converter and system using the same |
Sep. 7, 2004 |
| 6775304 |
Multi-channel implementation approach for superconducting digital router/signal processor |
Aug. 10, 2004 |
| 6731763 |
Audio A/D converter using frequency modulation |
May. 4, 2004 |
| 6661364 |
Semiconductor device for inverter controlling |
Dec. 9, 2003 |
| 6661365 |
Circuit architectures and methods for A/D conversion |
Dec. 9, 2003 |
| 6650268 |
Method and apparatus for a pulse decoding communication system using multiple receivers |
Nov. 18, 2003 |
| 6639528 |
Apparatus for multi-channel signal processing and communication terminal using the same |
Oct. 28, 2003 |
| 6630897 |
Method and apparatus for signal detection in ultra wide-band communications |
Oct. 7, 2003 |
| 6611223 |
Method and apparatus for ultra wide-band communication system using multiple detectors |
Aug. 26, 2003 |
| 6593871 |
Automatic A/D convert positioning circuit and method |
Jul. 15, 2003 |
| 6509861 |
Method and apparatus for providing a moving filter |
Jan. 21, 2003 |
| 6501399 |
System for creating and amplifying three dimensional sound employing phase distribution and duty cycle modulation of a high frequency digital signal |
Dec. 31, 2002 |
| 6498578 |
Method and apparatus for generating pulses using dynamic transfer function characteristics |
Dec. 24, 2002 |
| 6492924 |
Circuits, systems, and methods for signal processors that buffer a signal dependent current |
Dec. 10, 2002 |
| 6486819 |
Circuitry with resistive input impedance for generating pulses from analog waveforms |
Nov. 26, 2002 |
| 6486805 |
Frequency to digital converter |
Nov. 26, 2002 |
| 6473018 |
Delta sigma analog-to-digital converter |
Oct. 29, 2002 |
| 6469650 |
Method and system for selecting implementation of a filter controller between a single conversion mode that ensures a fully-settled converted output and a continuous conversion mode |
Oct. 22, 2002 |
| 6466151 |
A/D converter |
Oct. 15, 2002 |
| 6456222 |
Sensor signal converter for machine tools and production machines, and also robots |
Sep. 24, 2002 |
| 6456221 |
Method and apparatus for signal detection in ultra wide-band communications |
Sep. 24, 2002 |
| 6452530 |
Method and apparatus for a pulse decoding communication system using multiple receivers |
Sep. 17, 2002 |
| 6411246 |
Folding circuit and A/D converter |
Jun. 25, 2002 |
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