Scale reading apparatus

Details Scale reading apparatus Scale reading apparatus

2005-07-06

2009-08-11

Bennett, G. Bradley (Department: 2841)

Geometrical instruments

Distance measuring

Scale reading position sensor

C033S0010PT, C341S051000

Reexamination Certificate

active

07571552

ABSTRACT:
Scale reading apparatus having a scale and readhead moveable relative to one another. The scale has a first incremental scale pattern with a fine pitch and a second incremental scale pattern with a coarse pitch. The readhead has a detector to detect each of the incremental scale patterns. The scale reading apparatus can be used for both slow speed and fast speed measurements. The second incremental scale pattern may be provided in a scale track which has a dual function (e.g. limit track or reference mark) and the readhead may be configured to decode the signal to produce an output suitable for the desired function.

REFERENCES:
patent: 4414754 (1983-11-01), Lapeyre
patent: 4449191 (1984-05-01), Mehnert
patent: 4459750 (1984-07-01), Affa
patent: 4477920 (1984-10-01), Nygaard, Jr.
patent: 4483077 (1984-11-01), Matsumoto et al.
patent: 4616131 (1986-10-01), Burkhardt
patent: 5115573 (1992-05-01), Rieder et al.
patent: 5129725 (1992-07-01), Ishizuka et al.
patent: 5252825 (1993-10-01), Imai et al.
patent: 5332895 (1994-07-01), Rieder et al.
patent: 5687103 (1997-11-01), Hagl et al.
patent: 5793201 (1998-08-01), Nelle et al.
patent: 5978418 (1999-11-01), Greve et al.
patent: 6922899 (2005-08-01), Nakamura et al.
patent: 7421800 (2008-09-01), Howley
patent: Y-2450637 (2001-09-01), None
patent: 34 09 544 (1985-09-01), None
patent: 0 171 579 (1986-02-01), None
patent: 0 207 121 (1987-01-01), None
patent: 0 612 979 (1994-08-01), None
patent: 0 947 805 (1999-10-01), None
patent: WO-03/058172 (2003-07-01), None

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