Claims
- 1. A recording method for a magneto-optical recording medium, comprising recording a signal while, according to the signal to be recorded, a magnetic field is modulated with a magnetic head that is equipped with a slider and glides or floats on a magnetic super resolution type magneto-optical recording medium that attains a signal only from one portion of an irradiation domain of a reading beam, whereinin an operation to perform a test-writing preceding the recording, a deletion operation is performed by irradiating continuous light while applying a constant deletion magnetic field, after the deletion operation, test-writing is performed with a mark pitch that is smaller than a track pitch, while changing the power for recording through light modulation, and a recording power that avoids a condition of the recording marks resembling overlapping circles is determined through the test-writing.
- 2. The recording method for a magneto-optical recording medium according to claim 1, whereininformation is recorded with a magnetic field that is modulated according to the information to be recorded, using a light pulse with a constant period T1 that is synchronized to the clock signal, after the deletion operation, in a constant magnetic field pointing in the opposite direction of the deletion magnetic field or in an alternating field with a period T2, where, 2 T1≧T2>T1, the recording is performed through a light pulse with a period T2 which is synchronized to the clock signal, matching the timing, with which a magnetic field is impressed in the opposite direction of the deletion magnetic field while the light amount of the recording light pulse is changed, the most suitable light amount is sought on the basis of the result of reading, the recording is performed with the most suitable light amount, using a modulation magnetic field carrying the information to be recorded and a light pulse with the period T1.
Priority Claims (1)
Number |
Date |
Country |
Kind |
8-170214 |
Jun 1996 |
JP |
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Parent Case Info
“This application is a Divisional of application Ser. No. 08/883,549, now U.S. Pat. No. 5,986,977 filed Jun. 26, 1997, which application(s) are incorporated herein by reference.”
US Referenced Citations (9)
Foreign Referenced Citations (3)
Number |
Date |
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3-242845 |
Oct 1991 |
JP |
8-7383 |
Jan 1996 |
JP |
8-17090 |
Jan 1996 |
JP |