Inventor
HSIEH DER-CHANG
US12 patents
⚠️ This page may combine multiple inventors who share the name “HSIEH DER-CHANG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BURROUGHS CORP
6 patentsUS4432083AFeb 14, 1984
Optical memory system having track following
BURROUGHS CORP31 citations92
US4564757AJan 14, 1986
Mirror position sensor for improved track selection in optical data disk system
BURROUGHS CORP35 citations87
US4432082AFeb 14, 1984
Optical memory system having a long seek capability
BURROUGHS CORP26 citations81
US4489406ADec 18, 1984
Optical memory system having a short seek capability
BURROUGHS CORP16 citations73
US4435797AMar 6, 1984
Optical memory system having track following and seeking capabilities
BURROUGHS CORP13 citations73
US4560925ADec 24, 1985
Mirror position sensor and associated pivot suspension for improved track selection in optical data disk system
BURROUGHS CORP14 citations72
TANDY CORP
3 patentsUS5056081AOct 8, 1991
System and method for erasing light-responsive optical disks
TANDY CORP12 citations73
US5043971AAug 27, 1991
Method and apparatus for pre-compensation in an optical disc
TANDY CORP13 citations70
US5128921AJul 7, 1992
Method and apparatus for pre-compensation in an optical disc
TANDY CORP5 citations59