Der-Chang Hsieh

Person

Thousand Oaks, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Optical memory system having improved positioning and focusing cont...
- Patent number 4,674,076
- Issue date Jun 16, 1987
- Burroughs Corporation
- Der C. Hsieh
- G11 - INFORMATION STORAGE
Information Patent Grant
Focusing control circuitry for an optical memory system
- Patent number 4,669,074
- Issue date May 26, 1987
- Burroughs Corporation
- Der C. Hsieh
- G11 - INFORMATION STORAGE
Information Patent Grant
Mirror position sensor for improved track selection in optical data...
- Patent number 4,564,757
- Issue date Jan 14, 1986
- Burroughs Corporation
- Edward V. LaBudde
- G02 - OPTICS
Information Patent Grant
Mirror position sensor and associated pivot suspension for improved...
- Patent number 4,560,925
- Issue date Dec 24, 1985
- Burroughs Corporation
- Jeffrey E. Niven
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical memory system having a short seek capability
- Patent number 4,489,406
- Issue date Dec 18, 1984
- Burroughs Corporation
- Der-Chang Hsieh
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical memory system having track following and seeking capabilities
- Patent number 4,435,797
- Issue date Mar 6, 1984
- Burroughs Corporation
- Der-Chang Hsieh
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical memory system having a long seek capability
- Patent number 4,432,082
- Issue date Feb 14, 1984
- Burroughs Corporation
- Der-Chang Hsieh
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical memory system having track following
- Patent number 4,432,083
- Issue date Feb 14, 1984
- Burroughs Corporation
- Der-Chang Hsieh
- G11 - INFORMATION STORAGE

Der-Chang Hsieh

Person

Patents Grantslast 30 patents

Optical memory system having improved positioning and focusing cont...

Focusing control circuitry for an optical memory system

Mirror position sensor for improved track selection in optical data...

Mirror position sensor and associated pivot suspension for improved...

Optical memory system having a short seek capability

Optical memory system having track following and seeking capabilities

Optical memory system having a long seek capability

Optical memory system having track following