Coded data generation or conversion – Analog to or from digital conversion – Differential encoder and/or decoder
Reexamination Certificate
2006-11-28
2006-11-28
Barnie, Rexford (Department: 2819)
Coded data generation or conversion
Analog to or from digital conversion
Differential encoder and/or decoder
C341S155000, C341S172000
Reexamination Certificate
active
07142143
ABSTRACT:
Time-continuous sigma/delta analog-to-digital converter for converting an analog input signal into a digital output signal (D), having at least one analog filter (3) which filters the analog input signal present at a signal input (2) of the analog filter (3), a quantizer (12) which is clocked by a clock signal (CLK) and quantizes the filtered analog signal, output by the analog filter (3), in order to generate the digital output signal (D), and having at least one reference capacitor (28) which can be continuously charged to a reference voltage (VREF) by a current source (31) for displacing a constant charge (Q) to/from the analog filter (3), such that no voltage jumps occur at the analog filter (3).
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Barnie Rexford
Infineon - Technologies AG
Magino Moore Beck
Nguyen Khai M.
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