PSEUDORANDOM CODE SCALE Russian patent published in 2018 - IPC H03M1/24 

FIELD: measuring equipment.

SUBSTANCE: device contains an information track made in the form of gradations of a pseudo-random binary sequence of the maximum length of the period M=2ⁿ-1, constructed by means of a primitive polynomial h(x) degree, where n is the digit of scale, n information and k+1 corrective reading elements placed along the information track with angular steps, multiples of the quantum of the scale δ= 360°/M, with the possibility of obtaining from them M different (n+k+1) - bit code combinations, representing a correction code with correction of single and double error detection, k_d additional corrective reading elements placed along the information track with angular steps, multiples of the quantum of the scale δ, with the possibility of obtaining from them together with (n+k+1) reading elements M different (n+k+k_d+1) - bit code combinations, which representing a correction code with a double error correction, the outputs of the reading elements are pseudo-random code scale outputs.

EFFECT: increase of information reliability of pseudo-random code scale due to the formation of a correction code with double errors correction.

1 dwg, 3 tbl