Invention Grant
- Patent Title: Method and apparatus for controlling the rotation of a turntable which is capable of instantly and accurately moving a disc mounting unit regardless of rotation speed variation or aging of parts
- Patent Title (中): 用于控制转盘的旋转的方法和装置,其能够即时且精确地移动盘安装单元,而不管部件的转速变化或老化
-
Application No.: US09891373Application Date: 2001-06-27
-
Publication No.: US06603721B2Publication Date: 2003-08-05
- Inventor: Dong Sik Kim , Dong Woo Lee
- Applicant: Dong Sik Kim , Dong Woo Lee
- Priority: KR2000/35978 20000628
- Main IPC: G11B1518
- IPC: G11B1518

Abstract:
The present invention relates to a method and an apparatus for controlling the rotation of a turntable, in order to move a disk mounting portion selected among a plurality of disk mounting portions installed on the turntable to a pickup side by a key input signal of a user which includes rotating the turntable by supplying a driving voltage to a turntable driving motor, sensing a rotational velocity of the turntable and the extract output delay time Td of the driving voltage of the motor for stopping the pertinent disk mounting portion at a reproducing position on the basis of the sensed rotation velocity, and cutting off the driving voltage output of the turntable driving motor after confirming the approach of the pertinent disk mounting portion to a reproducing position and confirming the output delay time. Accordingly, the disk mounting portion selected by a user is accurately moved to a request position regardless of the rotational velocity variation or aging of parts due to the load quantity variation of the turntable.
Public/Granted literature
- US20020001271A1 Method and apparatus for controlling the rotation of a turntable Public/Granted day:2002-01-03
Information query