The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 10, 2017
Filed:
Mar. 06, 2013
Renishaw Plc, Wotton-under-Edge, GB;
Rls Merilna Tehnika D.o.o., Komenda, SI;
Peter Kogej, Rozna Dolina, SI;
Alja{hacek over (z)} Ogrin, Kranj, SI;
Gregor Dol{hacek over (s)}ak, Ig, SI;
Bla{hacek over (z)} Hajdinjak, Ljubljana, SI;
RENISHAW PLC, Wotton-under-Edge, GB;
RLS MERILNA TEHNIKA D.O.O., Komenda, SI;
Abstract
A magnetic encoder apparatus is presented that includes a plurality of magnetic sensor elements (e.g. Hall sensors) for reading an associated magnetic scale that produces a periodically repeating magnetic pattern. The plurality of magnetic sensor elements produce a plurality of sensor signals and an analyzer is provided for analyzing the plurality of sensor signals to provide a measure of the position of the magnetic sensor elements relative to the associated magnetic scale. The analyzer is arranged to use the plurality of sensor signals to assess the period of the periodically repeating magnetic pattern sensed by the plurality of magnetic sensor elements. In this manner, the requirement to carefully match the period of the sensor elements with the periodically repeating magnetic pattern of the associated magnetic scale is avoided.