Invention Grant
- Patent Title: Optical disc drive
- Patent Title (中): 光盘驱动器
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Application No.: US12285821Application Date: 2008-10-15
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Publication No.: US08665681B2Publication Date: 2014-03-04
- Inventor: Akira Kitayama , Tatemi Ido , Nobuaki Sato , Hiroharu Sakai , Kouichi Ihara
- Applicant: Akira Kitayama , Tatemi Ido , Nobuaki Sato , Hiroharu Sakai , Kouichi Ihara
- Applicant Address: JP Tokyo
- Assignee: Hitachi-Lg Data Storage, Inc.
- Current Assignee: Hitachi-Lg Data Storage, Inc.
- Current Assignee Address: JP Tokyo
- Agency: Stites Harbison PLLC
- Agent Juan Carlos A. Marquez, Esq.; Nicholas B. Trenkle
- Priority: JP2007-271948 20071019
- Main IPC: G11B7/00
- IPC: G11B7/00
Abstract:
There is provided an optical disc drive comprises an optical pick-up including a laser diode (LD) and a laser diode driver (LDD) for driving the laser diode, a digital signal processor (DSP) including a write strategy circuit and low voltage differential signaling (LVDS) drivers for transmitting a produced write strategy signal, a circuit board having the DSP mounted thereon and including a line for transmitting the write strategy signal, a transmission line connecting the circuit board and the LDD and transmitting a write strategy signal, and differential resistors connected between differential lines of outputs of the LVDS drivers. Especially, a resistor having a resistance value in a range of 80 to 500Ω is inserted between the differential lines of outputs of the LVDS driver inside the DSP.
Public/Granted literature
- US20090103406A1 Optical disc drive Public/Granted day:2009-04-23
Information query
IPC分类:
