Coded data generation or conversion – Converter calibration or testing
Reexamination Certificate
2005-03-29
2005-03-29
Young, Brian (Department: 2819)
Coded data generation or conversion
Converter calibration or testing
C341S155000, C341S164000
Reexamination Certificate
active
06873272
ABSTRACT:
An integrated circuit includes an input pad for receiving an externally generated analog signal, and a pre-sampling circuit for pre-sampling at least one internally generated analog reference signal. An analog-to-digital converter is connected to the input pad for providing a numerical value of the externally generated analog signal, and is connected to the pre-sampling circuit for providing a numerical value of the internally generated analog reference signal. A fault signaling circuit is connected to the pre-sampling circuit and to the analog-to-digital converter for generating a fault signal when the numerical value of the externally generated analog signal is equal to the numerical value of the internally generated analog reference signal. The fault signal indicates that an electrical connection providing the externally generated analog signal to the input pad is faulty.
REFERENCES:
patent: 4081800 (1978-03-01), Amemiya et al.
patent: 5886640 (1999-03-01), Wang et al.
patent: 6486806 (2002-11-01), Munoz et al.
patent: 6701262 (2004-03-01), Mizuno et al.
Allen Dyer Doppelt Milbrath & Gilchrist, P.A.
Jorgenson Lisa K.
Nguyen John B
STMicroelectronics S.R.L.
Young Brian
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