High resolution A/D conversion based on piecewise conversion at lower resolution

DWPI Title: Method for converting real world analog signals e.g. sound, to digital representations using analog-to-digital conversion apparatus, involves interpreting multi-bit digital signal components to produce composite digital signal
Abstract: Piecewise conversion of an analog input signal is performed utilizing a plurality of relatively lower bit resolution A/D conversions. The results of this piecewise conversion are interpreted to achieve a relatively higher bit resolution A/D conversion without sampling frequency penalty.
Use: Method for converting real world analog signal e.g. sound, to digital representations using an A/D conversion apparatus (claimed).
Advantage: The method enables achieving higher bit resolution A/D conversion without sampling frequency penalty so as to achieve high sampling frequency, thus obtaining accurate digital representation of an analog signal.
Novelty: The method involves performing analog-to-digital (A/D) conversion operations on associating portions of voltage range to produce corresponding multi-bit digital signal components with common bit width (R1), where each signal component varies in accordance with variation of an analog input signal when the analog input signal occupies portions of the voltage range. The signal components are interpreted to produce a composite digital signal (12) corresponding to the analog input signal, where bit width (R2) of the digital signal is greater than common bit width.
Filed: 7/13/2010
Application Number: US2010835024A
Tech ID: SD 10835.0
This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention.
Data from Derwent World Patents Index, provided by Clarivate
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