FIELD: data recording.
SUBSTANCE: method is based on forming data code groups from binary signals and their distribution in pairs to coextensive blocks, depending on the set value of the extend of defects of the carrier. Each block has extra marker and control pairs of code groups. Series of extra blocks of pairs of code groups are formed, which are divided into sub-series, each of which consists of marker and address pairs of code groups and the given numbers of data and extra control pairs of blocks. A recording signal for each series of blocks is formed in the form of a series of the set value of marker and address sections of a sinusoidal signal with set maximum and minimum values of extremums of the amplitude and the order of sequence of the address sections depending on the values of the code numbers of the current series. Series with a distortion block and from a distortion block, as well as data and control sections of the sinusoidal signal from blocks with values of amplitude extremums, depending on the set maximum and minimum values of amplitude extremums and on the values of the corresponding pairs of code groups of corresponding blocks. Recording signals from series of blocks are recorded on a carrier and temporarily stored in their corresponding initial series of blocks. Each recorded series of blocks is compared and the number of substituted distortion blocks corresponding to its initial series of blocks is determined, for each of which there is substitution of the code of numbers of the series with a distortion block and from a distortion block, as well as data and control pairs of code groups of the initial series, corresponding to the distortion block. The address parts and data and control pairs of code groups are installed in the blocks for subsequent preparation for recording of series of blocks, after which the signal for recording subsequent series of blocks is generated and is recorded onto the carrier.
EFFECT: increased reliability of recording.
4 dwg
