FIELD: instrumentation engineering; data receiving, transmitting, recording, and processing hardware. SUBSTANCE: source binary signals are allocated among blocks and groups in blocks. Signals of write flags of code groups in true form and one's complement are added to blocks. Code group blocks are converted by setting in them aggregates of interrelated code groups. Type-of-interrelation codes, leader and size addresses, and also binary qualifying chain are formed for each aggregate. Some values of chain correspond to positions of interrelated code groups and other ones, to positions of intermediate code groups. All interrelated code groups of aggregates or all but base code groups are excluded from block. Average values of write signals are minimized by selecting location of respective half-cycle marker length of sine-wave signal in each block and, if necessary, this length is corrected without changing reference value of amplitude. EFFECT: enhanced packing density of digital data in magnetic storage hardware. 2 dwg
