Portable semiconductor storage device

Details Portable semiconductor storage device Portable semiconductor storage device

1990-01-16

1992-01-07

Bowler, Alyssa H.

Static information storage and retrieval

Hardware for storage elements

365226, 365229, 200336, 439188, G11C 514, G11C 2300, G11C 1150

Patent

active

050797417

ABSTRACT:
A portable semiconductor storage device includes a device body, a storage circuit for storing data mounted on the body, a main cell holder removably insertable into the body for holding a main cell for supplying a power supply voltage to the storage circuit, an auxiliary cell for supplying a power supply voltage to the storage circuit when the main cell holder is removed from the body, and a switch means actuated by insertion and removal of the main cell holder to electrically disconnect the auxiliary cell from the storage circuit when the main cell holder is inserted into the body and to electrically connect the auxiliary cell to the storage device when the main cell holder is removed from the body.

REFERENCES:
patent: 4255697 (1981-03-01), Buhler III
patent: 4607351 (1986-08-01), Gerber et al.
patent: 4662736 (1987-05-01), Taniguchi et al.
patent: 4889495 (1989-12-01), Kimura
patent: 4890005 (1989-12-01), Schornack

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