Flexible disk device, disk formatting method, and recording/reproducing method
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorMasaki Yamamoto
Life of this patent
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Abstract
Data which is greater in capacity than the prior arts is recorded and reproduced on and from a low-capacity recording medium. In a large-capacity flexible disk device having head sliders (4) loaded with a low-capacity magnetic head and a high-capacity magnetic head, a control means such as a CPU 14 and the like for controlling the low-capacity magnetic head and the high-capacity magnetic head is provided so that a high-capacity track format is written in a low-capacity recording medium (1) by the low-capacity magnetic head to record information, and the information recorded on the low-capacity recording medium (1) in a high-capacity track format is reproduced by means of the high-capacity magnetic head.
Claims6
A flexible disk device comprising:
- a first magnetic head which has a wide recording gap width, and can write in and read out information, with respect to a low-capacity recording medium, at a wide track width based on said wide recording gap and in a low-capacity track format;
- and
- a second magnetic head which has a recording gap width that is narrower than that of said first magnetic head, and can write in and read out information, with respect to a high-capacity recording medium which is greater in capacity than said low-capacity recording medium, at a narrow track width based on said narrow recording gap and in a high-capacity track format which is greater in track density and linear density than said low-capacity recording medium,
- whereby flexible disk device records and reproduces information on and from two or more types of recording media having different capacities,
- characterized in that
- a control means is provided for controlling said first magnetic head to operate at track intervals narrower than the recording gap width thereof so as to write a high-capacity track format in said low-capacity recording medium at a narrow track width, thereby to record information and to read out the information recorded on said low-capacity recording medium by said second magnetic head.
A disk formatting method for formatting two or more types of recording media having different capacities, characterized in that
- with respect to a low-capacity recording medium, a first magnetic head which can write in and read out information in a low-capacity track format is operated at track intervals that are narrower than a recording gap width thereof, so as to write in a high-capacity track format which is greater in track density and linear density than said low-capacity track format.
A recording/reproducing method for recording and reproducing on and from two or more types of recording media having different capacities, characterized in that
- with respect to a low-capacity recording medium, a first magnetic head which can write in and read out information in a low-capacity track format is operated at track intervals that are narrower than a recording gap width thereof so as to write in a high-capacity track format which is greater in track density and linear density than said low-capacity track format, thereby to record information and to read out the information recorded on said low-capacity recording medium by a second magnetic head which can read out information in said high-capacity track format.
Dependencies are inferred from the claim text.