Tag Archives: picking-up

Optical picking-up device

Application Number  00128838 Application Date  2000.09.07 Publication Number  1288228 Publication Date  2001.03.21 Priority Information   1999/9/7 JP 252579/99   International Classification  G11B7/12   Applicant(s) Name  Sankyio Seiki Mfg. (Seisakusho) Co., Ltd.   Address     Inventor(s) Name  Yanagisawa Katsushige   Patent Agency Code  31100 Patent Agent  sun jingguo AbstractProvides is an optical pickup device to… Read More »

Optical picking-up device able to detect stable error signal

Application Number: 00118370Application Date: 2000.06.16Publication Number: 1278096Publication Date: 2000.12.27Priority Information: 1999/6/18 KR 22917/99International: G11B7/12;G11B7/135Applicant(s) Name: Samsung Electronics Inc.Address: Inventor(s) Name: Lee Yung-Chae;Seung Pyong-Young;Ryuh Chang-HunPatent Agency Code: 11105Patent Agent: li xiaoshuAbstract An optical pickup device employing a signal detection unit including a hologram element having a plurality of pattern regions for diffracting and/or focusing light reflected… Read More »