Dynamic information storage or retrieval – Condition indicating – monitoring – or testing – Including radiation storage or retrieval
Reexamination Certificate
2006-11-14
2006-11-14
Young, Wayne (Department: 2627)
Dynamic information storage or retrieval
Condition indicating, monitoring, or testing
Including radiation storage or retrieval
C369S044110, C369S044280, C369S053390
Reexamination Certificate
active
07136339
ABSTRACT:
A positioning control apparatus for controlling a moving member to trace the position of a target member which almost equally repeats the position shift at a predetermined period comprises a position detector for detecting a relative position error, a first adder for adding a delay signal and a position error signal, a signal delay unit for outputting the delay signal which is obtained by delaying an output signal of the first adder at a period corresponding to the position shift of the target member, a second adder for adding the position error signal and the delay signal, a third adder for adding an output of the second adder and the delay signal via a filter, a compensating unit for performing the compensation for offset and/or the compensation for stabilization of the positioning control apparatus based on an output of the third adder, a drive unit for driving the moving member based on an output of the compensating unit, and a delay-amount setting unit for setting the amount of delay of a signal delayed by the signal delay unit.
REFERENCES:
patent: 56065211 (1981-06-01), None
patent: S56-65211 (1981-06-01), None
patent: 60-57085 (1985-12-01), None
patent: H01-138663 (1989-05-01), None
patent: H03-108010 (1991-05-01), None
patent: 2001-126421 (2001-05-01), None
patent: 2001126421 (2001-05-01), None
English translation of JP 2001-126421; English translation( Abstract) of JP 56-065211.
Iwazawa Naotoshi
Kubota Masashi
Shimonou Shigeru
NEC Corporation
Ortiz-Criado Jorge L.
Sughrue & Mion, PLLC
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