Optical cache memory for magnetic and optical disk storage
Optical card reader including mechanical scanning assembly
Optical random access memory
Optical random access memory
Optical random access memory having diffractive simplex imaging
Optical random access memory having folded image
Optical random access memory having multiple state data spots fo
Optical read apparatus for reading a disc-shaped record carrier
Optically readable molecular memory obtained using carbon...
Optically readable record carrier with track variations which pr