Coded data generation or conversion – Analog to or from digital conversion – Analog to digital conversion
Reexamination Certificate
2008-05-15
2009-11-03
Barnie, Rexford N (Department: 2819)
Coded data generation or conversion
Analog to or from digital conversion
Analog to digital conversion
C341S155000
Reexamination Certificate
active
07612699
ABSTRACT:
An A/D converter circuit uses first and second ring delay lines. The first and second ring delay lines are supplied with input signals, which increase/decrease oppositely from each other with respect to change directions. In each ring delay line, a first counter counts the number of times of circulation of a pulse signal circulating therein to find a digital data, and a last digital data is subtracted from a present digital data. By adding the resulting first and second digital data of the first and second ring delay lines, a digital data of the input voltage of linear characteristics is provided.
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Barnie Rexford N
DENSO CORPORATION
Lauture Joseph
Posz Law Group , PLC
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