Title:
DATA RECORDING METHOD AND DATA REPRODUCING METHOD
Document Type and Number:
Japanese Patent JPH02179968
Kind Code:
A
Abstract:
PURPOSE:To evade a case in which a magneto-optical signal is overwritten to absolute address information by setting the arrangement interval of the absolute address information so that the repeated frequencies of a block successively formed after the absolute address information at every absolute address information may be an integer value. CONSTITUTION:When data are recorded on a disk 1, where plural pieces of absolute address information (h) in an uneven pattern are recorded beforehand, the arrangement interval of the absolute address information (h) is set so that the repeated frequencies of the block successively formed after the absolute address information (h) at every absolute address information (h) may be the integer value. Further a synchronizing signal (n) is added at every prescribed data of the inputted information to form frames, the frames in a prescribed number are continuously arranged, a VFO field (j), where the number of bits corresponding to a lead-in time necessary for the phase locked loop is allocated, is added to the top of the frame, and thus the block is formed. Thus the case in which the magneto-optical signal is overwritten on the absolute address information can be prevented.
Inventors:
MAEDA SHIGEMI
TERAJIMA SHIGEO
TERAJIMA SHIGEO
Application Number:
JP33100688A
Publication Date:
July 12, 1990
Filing Date:
December 29, 1988
Export Citation:
Assignee:
SHARP KK
International Classes:
G11B20/10; G11B7/00; G11B7/004; G11B20/12; (IPC1-7): G11B7/00; G11B20/10; G11B20/12
Attorney, Agent or Firm:
Kenzo Hara
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