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Multibit magnetic surface digital storage method

A technology of digital storage and magnetic surface, applied in the direction of digital recording, recording/reproducing/deleting methods, etc., can solve problems such as cost increase, and achieve the effect of increasing storage capacity and reading speed

Inactive Publication Date: 2004-03-10
李大鹏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

(Corresponding to the disk to increase the speed, corresponding to the tape is to increase the tape speed) This requires the use of high-precision mechanical transmission components, resulting in a significant increase in cost

Method used

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  • Multibit magnetic surface digital storage method
  • Multibit magnetic surface digital storage method
  • Multibit magnetic surface digital storage method

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Embodiment Construction

[0009] The present invention is described in further detail now in conjunction with accompanying drawing.

[0010] A method for multi-bit magnetic surface digital storage. The magnetic recording medium passes under the magnetic head at a constant speed, and the current passes through the magnetic head coil. The magnetic conductor of the magnetic head establishes a magnetic field, so that the magnetic head magnetizes the magnetic recording medium. When the magnetic head current is canceled, use The residual magnetism on the surface of the magnetic medium records the binary digital information to be recorded, and it is characterized in that: it completes digital storage according to the following steps: the digital signal of X>1 is passed through a "digital / analog converter", It is transformed into a current with a certain intensity. After the current passes through the coil of the magnetic head, a magnetic field with a certain intensity can be established. After the magnetic hea...

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Abstract

The present invention relates to a multilevel magnetic surface digital storage method, i. e. it is a method utilizing a residual field to record multibit binary information, and is characterized by that the digital signal is converted into electric current with a certain intensity by means of "D / A converter", then said electricurrent is passed through coil of magnetic head to establish a magnetic field with a certain intensity, and the magnetic recording medium can be magnetized, and the residual magnetism with a certain intensity can be remained so as to implemented information recording. Said invented method can implement multiplication of storage capacity and fetching speed under the condition of only increasing relatively low cost.

Description

technical field [0001] The invention is a technology for storing and reading digital information on magnetic surface storage (tape, magnetic disk, etc.), especially a method for single remanence multi-bit magnetic surface digital storage. Background technique [0002] The process of writing information in the current magnetic surface digital storage technology is as follows: the magnetic recording medium (tape, disk, etc.) passes under the magnetic head at a constant speed, and a current of a certain direction and magnitude is passed into the magnetic head coil, and the magnetic conductor of the magnetic head is magnetized , establish a magnetic field with a certain direction and intensity, so that the magnetic head magnetizes the magnetic recording medium. Since the magnetic layer of the recording medium is a hard material, when the head current is canceled and the magnetic field disappears, a remanence will be left on the surface of the magnetic medium, and the remanence w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B5/09
Inventor 李大鹏
Owner 李大鹏