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recording device

A recording device and recording medium technology, applied in data recording, record carrier turntable, recording information storage, etc., can solve the problems of slow response speed, scratches on recording medium, complicated structure, etc., and achieve the effect of increasing the displacement suppression effect

Inactive Publication Date: 2017-03-29
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] However, in the configuration of Patent Document 1, the inclination of the recording medium rotating at high speed is measured, and the inclination corresponding to the inclination amount is applied to the fixed, large and heavy spindle motor of the recording medium, so there is a response slows down and poses complex problems
[0008] On the other hand, in the structure of Patent Document 2, the inclination of the recording medium is suppressed by pressing the roller fixed to the end of the recording medium, so the structure is simple, but the recording medium rotates in contact with the roller, so there is a possibility that scratches are generated on the surface of the recording medium. , and the problem of friction loss occurs

Method used

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Embodiment Construction

[0069] Below, use figure 1 ˜ FIG. 4 illustrate the configuration and operation of the recording device according to the first embodiment of the present invention.

[0070] First, use figure 1 , the configuration and operation of the recording device according to this embodiment will be described.

[0071] figure 1 It is an overall configuration diagram of the recording device according to the first embodiment of the present invention.

[0072]In this embodiment, as a recording device, an optical disc recording device using a hologram memory device (head) M1 will be described as an example.

[0073] A recording medium 224 such as an optical disk is fixed to a rotation motor 222 via a rotation shaft 223 . The hologram memory device (head) M1 records information on the rotating recording medium 224 and reproduces the recorded information. In addition, in this embodiment, a displacement suppression mechanism M2 for suppressing displacement of the recording medium 224 is provi...

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Abstract

The present invention provides a recording device that offers a large displacement control effect. The recording device includes a recording medium 224, a motor 222 that drives the recording medium, and a recording device head M1 that records and reproduces a signal to and from the recording medium. The recording device also has a displacement control mechanism M2. The displacement control mechanism M2 includes a vibrating plate 226 that has two opposing surfaces facing the recording medium, the vibrating plate being displaced in the rotation axis direction of the recording medium; and an oscillator 232 that is positioned away from the two opposing surfaces of the vibrating plate facing the recording medium, the oscillator driving and displacing the vibrating plate.

Description

technical field [0001] The present invention relates to a recording device using a flat recording medium, and in particular, to a recording device suitable for suppressing displacement in the rotation axis direction of a rotating recording medium. Background technique [0002] In recent years, due to the increase in the amount of electronic information accompanied by the spread of the Internet and higher image quality, optical discs, which are one of the main information recording media, are seeking ways to increase the capacitance. Conventionally, large capacitance has been achieved in CDs, DVDs, BDs, etc. by increasing the number of apertures of the objective lens, reducing the size of the focused spot due to shortening the wavelength of the light beam, and multi-layering the recording layer. However, in order to achieve further high density, a new memory technology that is different from the conventional increase in the number of apertures and shortening of the wavelength...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B25/04
CPCG11B7/0065G11B3/61G11B7/0037G11B7/0956G11B7/1381G11B7/13927
Inventor 桥爪滋郎山内良明
Owner HITACHI LTD
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