Inventor
CHAN YI-CHUNG
TW10 patents
⚠️ This page may combine multiple inventors who share the name “CHAN YI-CHUNG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
VIA TECH INC
8 patentsUS6452883B2Sep 17, 2002
Method and apparatus applied in an optical storage device for estimating radial speed of disc
VIA TECH INC83 citations95
US6606283B2Aug 12, 2003
Long seeking method used in an optical disk drive
VIA TECH INC19 citations82
US6728184B2Apr 27, 2004
Method and device of determining the slice level of the radio frequency ripple signal in an optical storage device
VIA TECH INC7 citations71
US7301871B2Nov 27, 2007
Method and device for detecting the signal on a disc having a defect by utilizing an RF signal and its derivatives
VIA TECH INC3 citations62
US6757226B2Jun 29, 2004
Method for reducing the turn-back of the track-seeking control in an optical storage device and apparatus thereof
VIA TECH INC4 citations60
US6680881B2Jan 20, 2004
Method for deciding the direction of pick-up head of disk driver while crossing tracks
VIA TECH INC4 citations58
US7106670B2Sep 12, 2006
Method and apparatus for long seeking control of pickup head
VIA TECH INC1 citations48
US7061203B2Jun 13, 2006
Method and related apparatus for controlling calibration of a stepping motor
VIA TECH INC1 citations44