Coded data generation or conversion – Analog to or from digital conversion – Analog to digital conversion
Reexamination Certificate
2005-03-15
2005-03-15
Jeanpierre, Peguy (Department: 2819)
Coded data generation or conversion
Analog to or from digital conversion
Analog to digital conversion
C341S161000
Reexamination Certificate
active
06867723
ABSTRACT:
An AD converter includes a sample-&-hold circuit which samples and holds an input analog potential in a first period, and generates a signal indicative of a magnitude relation between the held input analog potential and a reference potential in a second period, a plurality of amplifiers connected in series which amplify an output of the sample-&-hold circuit, and a control circuit which controls operating timing of the amplifiers so as to make at least one of the amplifiers start operating in a middle of the first period.
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patent: 20030223605 (2003-12-01), Blumenau
patent: 4-220016 (1992-08-01), None
patent: 2000-40964 (2000-02-01), None
Kato Tatsuo
Nunokawa Hideo
Tachibana Suguru
Arent & Fox PLLC
Fujitsu Limited
Jeanpierre Peguy
Lauture Joseph
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