Coded data generation or conversion – Analog to or from digital conversion – Differential encoder and/or decoder
Reexamination Certificate
2006-07-18
2006-07-18
Barnie, Rexford (Department: 2819)
Coded data generation or conversion
Analog to or from digital conversion
Differential encoder and/or decoder
C341S155000, C341S159000
Reexamination Certificate
active
07079061
ABSTRACT:
The invention relates to a Sigma Delta A/D converter (2) for generating a N-bits digital output signal (4) on the basis of an analogue input signal (6), comprising a control loop which comprises a quantizer (8) comprising at least a comparator (24.1, 24.2) for generating the N-bits digital output signal (4) and a D/A converter (10) in a first feedback loop (12) of the control loop for generating an analogue version (14) of the N-bits digital output signal (4) on the basis of the N-bits digital output signal (4), wherein the quantizer (8) also comprises an Up-Down counter (26) which is coupled to the comparator (24.1, 24.2), wherein the D/A converter (10) is coupled to the comparator (24.1, 24.2) in a second feedback loop (27) of the control loop.
REFERENCES:
patent: 6229469 (2001-05-01), Gaudet
patent: 6292121 (2001-09-01), Cake et al.
patent: 6346898 (2002-02-01), Melanson
patent: 6396428 (2002-05-01), Cheng
patent: 6404372 (2002-06-01), Heithoff
patent: 6492929 (2002-12-01), Coffey et al.
patent: 2002/0186776 (2002-12-01), Cosand
Azeredo Leme C et al: “Oversampled Interface for IC Sensors” Instrumentation and Measurement Technology Conference, 1994. IMTC/97 Conference Proceedings. pp. 652-655.
Barnie Rexford
Nguyen Khai
Ure Michael J.
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