公开(公告)号：US20030090969A1

公开(公告)日：2003-05-15

申请号：US10290299

申请日：2002-11-08

Applicant: Minebea Co., Ltd.

Inventor： Kozo Matsumoto ,  Hideki Kato ,  Hideyoshi Horimai ,  Masaharu Kinoshita ,  Lim Pang-Boey

IPC: G11B007/00

CPC classification number: G11B7/0938 ,  G11B7/0065 ,  G11B7/00745 ,  G11B7/0901 ,  G11B7/0908

Abstract: An optical information recording device for recording information utilizing holography comprises a recording medium moving means for moving a recording medium, a follow-up control circuit for controlling an irradiation position, and a signal converting means for obtaining a reproduction signal from an address servo-control area including a light source for radiating an information beam and a reference beam onto the recording medium. The follow-up control circuit is composed of a binary-coding means for binary-coding the reproduction signal and a follow-up signal circuit, and detects the travel amount of the irradiation position moving means and generates, according to the travel amount detected and for a specific time during which the irradiation position of the information beam and the reference beam follows, an irradiation position control signal for controlling an irradiation position moving in one information recording area through an output terminal of a gain control amplifier.

Abstract translation: 用于利用全息术记录信息的光学信息记录装置包括用于移动记录介质的记录介质移动装置，用于控制照射位置的后续控制电路和用于从地址伺服控制获得再现信号的信号转换装置 区域包括用于将信息光束和参考光束照射到记录介质上的光源。 后续控制电路由用于二进制编码再现信号的二进制编码装置和后续信号电路组成，并且检测照射位置移动装置的移动量，并根据检测到的行驶量和 在信息光束和参考光束的照射位置跟随的特定时间，照射位置控制信号，用于通过增益控制放大器的输出端控制在一个信息记录区域中移动的照射位置。