Invention Grant
- Patent Title: Optical disc device
- Patent Title (中): 光盘设备
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Application No.: US14219278Application Date: 2014-03-19
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Publication No.: US08953429B2Publication Date: 2015-02-10
- Inventor: Shinji Fujita
- Applicant: Funai Electric Co., Ltd.
- Applicant Address: JP Osaka
- Assignee: Funai Electric Co., Ltd.
- Current Assignee: Funai Electric Co., Ltd.
- Current Assignee Address: JP Osaka
- Agency: Keating & Bennett, LLP
- Priority: JP2013-073281 20130329
- Main IPC: G11B7/00
- IPC: G11B7/00 ; G11B15/00 ; G11B7/1263

Abstract:
An optical disc device includes an optical pickup unit including a semiconductor laser that shines a laser light, a light-receiving unit that receives the return light of the laser light, a high-frequency generating circuit that generates high-frequency signals, a pickup driver that generates a drive signal that drives the semiconductor laser based on the high-frequency signal, a control unit that controls the high-frequency generating circuit such that, in states in which playback of the optical disc is halted while irradiation with the laser light is being performed, the signal level of the high-frequency signal to be superimposed is set at a first signal level other than zero so as to be smaller than in states in which the playback is performed.
Public/Granted literature
- US20140293762A1 OPTICAL DISC DEVICE Public/Granted day:2014-10-02
Information query
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