Title :
Incremental digital position encoder with error detection and correction
Author :
Ross, J.N. ; Taylor, P.A.
Author_Institution :
Dept. of Electron. & Comput. Sci., Southampton Univ., UK
Abstract :
A digital position encoder is described which combines features of absolute and incremental encoders. A track encoded with a pseudorandom sequence provides absolute position information for an incremental encoder, allowing the detection and correction of errors, while requiring only two code tracks and four read heads.
Keywords :
encoding; error correction codes; error detection codes; absolute position information; code tracks; digital position encoder; error correction; error detection; incremental encoders; pseudorandom sequence; read heads;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19890959
