Coded data generation or conversion – Digital pattern reading type converter – Incremental
Reexamination Certificate
2006-10-10
2006-10-10
JeanPierre, Peguy (Department: 2819)
Coded data generation or conversion
Digital pattern reading type converter
Incremental
C341S116000
Reexamination Certificate
active
07119717
ABSTRACT:
A Resolver/Digital (R/D) converter includes an encoder output divider having a DSP generating 14-bit encoded signals A2and B2from a timing analysis performed during the first period of 12-bit encoded signal A1. The DSP generates a selection signal output to a multiplexer to select encoded signals A1and BE1or encoded signals A2and B2depending on the rotational speed of the rotor of a resolver. Based on the selection signal, the multiplexer outputs 12-bit encoded signals A1and B1when the rotational speed is less than 400 rpm or greater than 1200 rpm, and outputs 14-bit encoded signals A2and B2when rotational speed is between 400 rpm and 1200 rpm.
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Adduci, Mastriani & Schaumberg, L.L.P.
Jean-Pierre Peguy
Minebea Co. Ltd.
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