公开(公告)号：US20120176881A1

公开(公告)日：2012-07-12

申请号：US13303393

申请日：2011-11-23

申请人： Seong-su PARK ,  Soo-han PARK ,  Jung-woo HONG ,  Se-june PARK ,  Dong-jin SHIN ,  Ichiro MORISHITA

发明人： Seong-su PARK ,  Soo-han PARK ,  Jung-woo HONG ,  Se-june PARK ,  Dong-jin SHIN ,  Ichiro MORISHITA

IPC分类号： G11B7/135

CPC分类号： G11B7/1365 ,  G11B7/1398

摘要： An optical pickup device is provided. The device includes a semiconductor laser light source which outputs linearly-polarized light having an elliptical shape, an objective lens which focuses light outputted from the semiconductor laser light source, forming an optical spot on an optical disc; and a polarization plate which is disposed placed on an optical path between the semiconductor laser light source and the objective lens, and which polarizes the light outputted from the semiconductor laser light source and transmits elliptically-polarized light, wherein the polarization plate is disposed such that a major axis of the elliptical polarization of the light transmitted by the polarization plate is parallel to or perpendicular to a major axis of the elliptical shape of the light.

摘要翻译： 提供一种光拾取装置。 该装置包括输出具有椭圆形的线偏振光的半导体激光光源，聚焦从半导体激光光源输出的光的物镜，在光盘上形成光点; 以及偏振板，其设置在所述半导体激光光源与所述物镜之间的光路上，使从所述半导体激光光源输出的光偏振并透射椭圆偏振光，其中，所述偏光板配置为 由偏振板透射的光的椭圆偏振的长轴平行于或垂直于光的椭圆形的长轴。

公开(公告)号：US20100130234A1

公开(公告)日：2010-05-27

申请号：US12580031

申请日：2009-10-15

申请人： Dong-jin SHIN ,  Jai-hyung CHO ,  Sang-ho LEE ,  Yeong-jin KIM

发明人： Dong-jin SHIN ,  Jai-hyung CHO ,  Sang-ho LEE ,  Yeong-jin KIM

IPC分类号： H04W24/00

CPC分类号： H04L12/1859 ,  H04L67/18 ,  H04L67/306 ,  H04W4/029

摘要： A personal broadcast service transmitter and a mobile terminal are provided. The mobile terminal receiving a personal broadcast service includes a location information transmitter to transmit location information of the mobile terminal to a personal broadcast service transmitter transmitting the personal broadcast service over a mobile communication network; and a personal broadcast service receiver to receive from the personal broadcast service transmitter the personal broadcast service generated based on the location information of the mobile terminal.

摘要翻译： 提供个人广播业务发射机和移动终端。 接收个人广播服务的移动终端包括：位置信息发送器，用于通过移动通信网络向发送个人广播服务的个人广播服务发射机发送移动终端的位置信息; 以及个人广播服务接收器，用于从个人广播服务发射机接收基于移动终端的位置信息产生的个人广播服务。