Title:
DATA REPRODUCING CIRCUIT FOR MAGNETO-OPTICAL DISK
Document Type and Number:
Japanese Patent JP2618571
Kind Code:
B2
Abstract:
PURPOSE: To provide the data reproducing circuit of a magneto-optical disk capable of easily and appropriately correcting and reproducing a domain corresponding to recorded data formed in the magneto-optical disk even when the size of the domain is not appropriate.
CONSTITUTION: This circuit is for reproducing the data recorded as the domain on the magneto-optical disk, converts reproducing signals S1 obtained by irradiating the domain with laser beams to binary signals S2 at a binary means 11 and detects front edge signals S3 and rear edge signals S4 at an edge detection means 19. Then, the front edge signals S3 are delayed for prescribed time at a fixed delay means 20, the rear edge signals S4 are delayed for the time corresponding to an integrated value I1 at a variable delay means 21 and respectively delayed signals S3' and S7 are syntheized at a synthesis means 31. The synthesized signals S8 are integrated by an integration means 15 to obtain the integrated value 11 and are held by the integration means 15 at the point of time when the integrated value I1 is turned to practically '0'.
Inventors:
Haruhiko Izumi
Moritsugu Masaharu
Masakazu Taguchi
Moritsugu Masaharu
Masakazu Taguchi
Application Number:
JP25338592A
Publication Date:
June 11, 1997
Filing Date:
September 24, 1992
Export Citation:
Assignee:
富士通株式会社
International Classes:
G11B11/10; G11B11/105; G11B20/10; G11B20/12; G11B20/14; (IPC1-7): G11B11/10
Attorney, Agent or Firm:
Matsumoto