发明申请
US20090086603A1 LIGHT EMITTING ELEMENT DRIVE CIRCUIT AND INFORMATION RECORDING/REPRODUCING APPARATUS USING SUCH CIRCUIT
审中-公开
使用这种电路的发光元件驱动电路和信息记录/再现装置
- 专利标题： LIGHT EMITTING ELEMENT DRIVE CIRCUIT AND INFORMATION RECORDING/REPRODUCING APPARATUS USING SUCH CIRCUIT
- 专利标题（中）： 使用这种电路的发光元件驱动电路和信息记录/再现装置
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申请号： US12206998申请日： 2008-09-09
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公开(公告)号： US20090086603A1公开(公告)日： 2009-04-02
- 发明人: Kazuto KURODA
- 申请人： Kazuto KURODA
- 申请人地址： JP Tokyo
- 专利权人： KABUSHIKI KAISHA TOSHIBA
- 当前专利权人： KABUSHIKI KAISHA TOSHIBA
- 当前专利权人地址： JP Tokyo
- 优先权： JP2007-256618 20070928
- 主分类号： G11B7/00
- IPC分类号： G11B7/00
摘要：
According to one embodiment, a first switching element which switches a light source, a second switching element which switches a load element connected in parallel to the light source, and a switch which controls the connection between the first and second switching elements and a constant current source. When the first switching element and the second switching element are differentially operated by the switch, the switch is turned on a predetermined time earlier than the turning on of the first or second switching element.
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