Coded data generation or conversion – Analog to or from digital conversion – Analog to digital conversion
Reexamination Certificate
2007-06-19
2007-06-19
Nguyen, Khai M. (Department: 2819)
Coded data generation or conversion
Analog to or from digital conversion
Analog to digital conversion
C341S118000, C341S120000, C341S154000, C341S155000, C341S159000
Reexamination Certificate
active
11313549
ABSTRACT:
An analog processing block is arranged to receive an input signal through an AC coupling circuit. A digitally programmable voltage reference (DPVR) circuit is arranged to provide selection of a voltage reference that is DC coupled through a high impedance circuit to the AC coupling circuit. The input to the analog processing block includes the AC coupled input signal and the DC level from the selected voltage reference such that the DC level is effectively shifted for the analog processing block. The analog processing block may include any number of analog functions including: buffering, level shifting, scaling, integrating, and analog-to-digital conversion for digital signal processing, to name a few. A digital control logic circuit and a trim map can be arranged to control adjustments to the DPVR such that the effects of any non-ideal conditions on the analog processing block are minimized. The trim map may include non-volatile memory devices.
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Impinj, Inc.
Merchant & Gould P,C,
Nguyen Khai M.
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