Device for reliable position monitoring

Data processing: generic control systems or specific application – Specific application – apparatus or process – Product assembly or manufacturing

Reexamination Certificate

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Details

C700S056000, C702S150000

Reexamination Certificate

active

06912444

ABSTRACT:
A position transducer is connected to merely one input circuit. The outputs of the input circuit are connected, transmitted or routed, in part, to a first and to a second counter circuit. For the counting process, the first counter circuit uses the digital signals of the input circuit, while the second counter circuit generates digital signals from the analog signals and uses them for the counting process. It is, thus, possible, in spite of a not fully two-channel processing of the signals of a position transducer, to set up a reliable position monitoring using only one position transducer.

REFERENCES:
patent: 3564218 (1971-02-01), Lay
patent: 4573139 (1986-02-01), Bonivich
patent: 4779211 (1988-10-01), March
patent: 5239479 (1993-08-01), Nolting et al.
patent: 6029118 (2000-02-01), Strasser
patent: 6810351 (2004-10-01), Katsurahira
patent: 6829557 (2004-12-01), Hausschmid et al.
patent: 2004/0039545 (2004-02-01), Katsurahira
patent: 198 26 875 (1999-12-01), None
patent: 0 742 505 (1996-11-01), None

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