Encoder strip damage detector

Details Encoder strip damage detector Encoder strip damage detector

2005-06-14

2005-06-14

Barlow, John (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Mechanical measurement system

C347S019000

Reexamination Certificate

active

06907356

ABSTRACT:
A method and apparatus for detecting a damaged encoder strip are described. An encoder strip is scanned in two separate operations at two separate times, a first operation and a second operation. The number of markings sensed in each separate operation is counted. A circuit compares the count of markings in each separate operation. If the count differs between the two operations, the circuit determines that the encoder strip is damaged, and the circuit develops a signal indicating this damage. In an embodiment, the first operation is performed during a calibration, and the second operation is performed during a power-on, or upon operator command.

REFERENCES:
patent: 6371593 (2002-04-01), Li et al.
patent: 6499827 (2002-12-01), Elgee

Affiliated with

Also associated with

Rating

Encoder strip damage detector does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Encoder strip damage detector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Encoder strip damage detector will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3458433