Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Reexamination Certificate
2006-02-21
2006-02-21
Sniezek, Andrew L. (Department: 2651)
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the head
C360S078020, C250S205000
Reexamination Certificate
active
07002771
ABSTRACT:
A method for sensing position that comprises generating light, eclipsing the light according to position, sensing the amount of light not eclipsed, and inferring position according to the sensed amount of light.
REFERENCES:
patent: 4176381 (1979-11-01), de Niet et al.
patent: 4677505 (1987-06-01), Nukada et al.
patent: 5592351 (1997-01-01), Carter
Brooks Ted A.
Christie, Jr. Leslie G.
Proctor William
Hewlett--Packard Development Company, L.P.
Sniezek Andrew L.
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