System and method for encoder failure detection

Details System and method for encoder failure detection System and method for encoder failure detection

2006-12-05

2008-12-02

Jeanglaude, Jean B. (Department: 2819)

Coded data generation or conversion

Digital pattern reading type converter

Incremental

C341S002000

Reexamination Certificate

active

07460030

ABSTRACT:
An encoder failure detector system and method for detecting failure of an encoder during time periods when a zero rotational speed is expected. For example, in one embodiment a test signal is applied during a period when a zero rotational speed is expected and a failure is indicated if no movement of a rotor is detected in response to the test signal.

REFERENCES:
patent: 3808431 (1974-04-01), Hedrick
patent: 4461015 (1984-07-01), Kulhavy
patent: 4597081 (1986-06-01), Tassone
patent: 4796005 (1989-01-01), Ishida et al.
patent: 4882529 (1989-11-01), Kobari et al.
patent: 5058145 (1991-10-01), Hauck et al.
patent: 5128536 (1992-07-01), Higashi
patent: 5257672 (1993-11-01), Ohtagaki et al.
patent: 5345048 (1994-09-01), Towey, Jr.
patent: 5357181 (1994-10-01), Mutoh et al.
patent: 5407024 (1995-04-01), Watson et al.
patent: 5650779 (1997-07-01), Sugden
patent: 5723858 (1998-03-01), Sugden
patent: 6246343 (2001-06-01), Deng et al.
patent: 6373211 (2002-04-01), Henry et al.
patent: 6480771 (2002-11-01), Nishida et al.
patent: 2004/0008002 (2004-01-01), Kamio et al.
patent: 2005/0156550 (2005-07-01), Kamio et al.
patent: 2005/0182591 (2005-08-01), Taniguchi et al.
patent: 2006/0021450 (2006-02-01), Nallapa
patent: 4-148046 (1992-05-01), None
patent: 5-036176 (1993-02-01), None
patent: 6-178569 (1994-06-01), None
patent: 8-336299 (1996-12-01), None
patent: 2000-351558 (2000-12-01), None
patent: 2001-079041 (2001-03-01), None
patent: 2003-165201 (2003-06-01), None
patent: 2003-299385 (2003-10-01), None

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