Adjustable error-correction composite Reed-Solomon encoder/syndrome generator

摘要: A composite encoder/syndrome generating circuit computes both check symbols and error syndromes using a single set of multiplier devices with varying tap weights having values that provide maximum preselected correction capability but is readily adjustable, such as by programmable latches, to eliminate from the selectable reduce without requiring change in weight values. The may be used increase or decrease (a) according which plurality concentric bands recording tracks being accessed banded direct access data storage device, (b) noise level sensed communications channel an output subject noise, (c) changes sending rates device sends at variable rates.