Hogan & Hartson, L.L.P.
Optical pickup device
A laser driving integrated circuit (8) to drive a laser element is mounted in an optical housing, and a wiring pattern of an actuator line (6) for supplying an actuator (1) with drive signals to drive the actuator (1) through a relay circuit board and a wiring pattern of a laser drive line (5) for supplying drive signals from the laser driving integrated circuit (8) to the laser element are formed on the same flexible wiring board (4), and, when the flexible wiring board (4) is folded, a shielding part (7) connected to the ground line is arranged to intervene between the overlapping wiring patterns of the actuator line (6) and the laser drive line (5) of the flexible wiring board (4).
Sanyo Electric Co., Ltd.
G H H G H
G11B H05K H05K G11B H05K
inventional inventional additional additional additional
Hisayuki Hideyuki Hiroyuki
Ito Saikawa Negishi