Invention Grant
- Patent Title: Servo control apparatus, servo control method, optical disc apparatus and video camera recorder
- Patent Title (中): 伺服控制装置,伺服控制方法,光盘装置和摄像机
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Application No.: US11756945Application Date: 2007-06-01
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Publication No.: US07660211B2Publication Date: 2010-02-09
- Inventor: Yoshiyuki Urakawa , Yuichi Suzuki
- Applicant: Yoshiyuki Urakawa , Yuichi Suzuki
- Applicant Address: JP Tokyo
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2006-163583 20060613
- Main IPC: G11B7/00
- IPC: G11B7/00

Abstract:
A servo control apparatus includes: a drive section that applies a thrust to move a driven object; a storage section that stores a control circuit output initial value; an approaching control section that moves the driven object toward a target position; an error signal detection section that detects an error signal varying according to a difference between the position of the driven object and the target position; a start position calculation section that calculates a start position of a servo control process; an arrival detection section that detects whether the driven object reaches the start position; a control circuit initial value calculation section that calculates a control circuit initial value of a control system and supplies it to a control circuit of the control system; and a servo control starting section that starts the servo control process when detecting that the driven object has reached the start position.
Public/Granted literature
- US20070286033A1 SERVO CONTROL APPARATUS, SERVO CONTROL METHOD, OPTICAL DISC APPARATUS AND VIDEO CAMERA RECORDER Public/Granted day:2007-12-13
Information query
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