JPS5860332U

JPS5860332U - digital disc player device

Info

Publication number: JPS5860332U
Application number: JP15326681U
Authority: JP
Inventors: 小林　正已
Original assignee: 株式会社東芝
Priority date: 1981-10-15
Filing date: 1981-10-15
Publication date: 1983-04-23

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図ａ、　　ｂ及び第２図ａ、　　ｂはそれぞれ従来
のデジタルディスクプレーヤ装置におけるトラッキング
及びフォーカス制御駆動部と対物レンズの動きを示す構
成図及び動作説明図、第３図は従来のデジタルディスク
プレーヤ装置におけるトラッキング、フォーカス及びジ
ッタ制御駆動部と対物レンズの動きを示す斜視図、第４
図はこの考案に係るデジタルディスクプレーヤ装置の一
実施例を示すブロック回路構成図、第５図ａ、　　ｂは
それぞれ同実施例の動作説明図、第６図はこの考案の他
の実施例を示すブロック回路構成図、第７図は回能の実
施例の動作説明図である。１１・・・ディスク、１２・・・対物レンズ、１３・・
・トラッキング制御駆動部、１４・・・フォーカス制御
駆動部、１５・・・ジッタ制御駆動部、１６．１７・・
・入力端子、１８・・・増幅器、１９・・・接続端子、
２０・・・駆動コイルミ２１・・・増幅器、２２・・・
増幅器、２３・・・接続端子、２４・・・増幅器、２５
．　２６．　２７・・・入力端子、２８．２９・・・増
幅器、３０．３１・・・接続端子、３２．３３・・・駆
動コイル、３４．３５・・・増幅器、３６・・・増幅器
、３７・・・接続端子、３８・・・駆動フィル。Fig. 1 a, b and Fig. 2 a, b are a configuration diagram and an operation explanatory diagram showing the movement of a tracking and focus control drive unit and an objective lens in a conventional digital disc player device, respectively, and Fig. 3 is a diagram illustrating the movement of a conventional digital disc player. A fourth perspective view showing the movement of the tracking, focus and jitter control drive unit and objective lens in the player device.
The figure is a block circuit configuration diagram showing one embodiment of a digital disc player device according to this invention, FIGS. 5a and 5b are respectively explanatory diagrams of the operation of the same embodiment, and FIG. 6 shows another embodiment of this invention. The block circuit configuration diagram, FIG. 7, is an explanatory diagram of the operation of the embodiment of the circuit function. 11...Disc, 12...Objective lens, 13...
- Tracking control drive unit, 14... Focus control drive unit, 15... Jitter control drive unit, 16.17...
・Input terminal, 18...Amplifier, 19...Connection terminal,
20... Drive coil 21... Amplifier, 22...
Amplifier, 23... Connection terminal, 24... Amplifier, 25
．． 26. 27...Input terminal, 28.29...Amplifier, 30.31...Connection terminal, 32.33...Drive coil, 34.35...Amplifier, 36...Amplifier, 37...・Connection terminal, 38... Drive fill.

Claims

[Scope of utility model registration request]

In an optical digital disc player device including a pickup having a tracking, focus, and jitter control drive unit, and a pickup in which the distance of the objective lens to the disc changes while at least one of the tracking and jitter control drive units is driven. , supplying a signal proportional to the absolute value of the control signal supplied to at least one of the tracking and jitter control drive unit to the focus control drive unit in addition to the control signal supplied to the focus control drive unit; A digital display device characterized in that a distance between the objective lens and the disk is kept constant.