Patent ID: 8476580
Filing Date: 2013-07-02
Classification: G01D,H03M

Abstract:
1. An angle-measuring device comprising a scanning device with which scanning of a closed serial first code and scanning of a closed serial second code is enabled, wherein a length of said closed serial second code is less than a length of said closed serial first code, and said closed serial first code and said closed serial second code have at least one common code section, said angle-measuring device comprising: a detector array for generating: 1) a first sequence of code words of a predetermined scanning length upon scanning of said closed serial first code, wherein said first sequence comprises a first partial sequence and one common partial sequence, and wherein said common partial sequence is created upon scanning of said common code section, and 2) a second sequence of code words of said predetermined scanning length upon scanning of said closed serial second code, wherein said second sequence comprises a second partial sequence and said common partial sequence, and wherein said common partial sequence is created upon scanning of said common code section; and a decoding device designed for decoding said first sequence of code words and said second sequence of code words, wherein said closed serial first code and said closed serial second code as well as said predetermined scanning length are selected such that code words of said first sequence and code words of said second sequence have a Hamming distance greater than 1.