Signal and power applying unit for memory cassettes

Details Signal and power applying unit for memory cassettes Signal and power applying unit for memory cassettes

1985-07-22

1986-12-09

Moffitt, James W.

Static information storage and retrieval

Hardware for storage elements

365228, G11C 504, G11C 1134

Patent

active

046284842

ABSTRACT:
When a memory cassette having semiconductor memory is attached to or detached from a connector mounted on an adapter, the supply of power to the memory cassette through the adapter is switched on or off and an interface signal between the memory cassette and the adapter is rendered active or inactive in response to connection or disconnection between the memory cassette and the adapter. The stored content of the semiconductor memory can be protected against destruction which would otherwise result from application of a power supply voltage upon connection or disconnection between the memory cassette and the adapter.

REFERENCES:
patent: 4109161 (1978-08-01), Iijima
patent: 4228536 (1980-10-01), Gueldenpfennig et al.
patent: 4400795 (1983-08-01), Irie et al.
patent: 4459679 (1984-07-01), Sukeda et al.
English Abstract of Japanese Patent A-55-62589.
Patents Abstracts of Japan, vol. 5, No. 182 (p. 90), (854) Nov. 20, 1981 & JP-A-56 111196 (Yokogawa Denki Seisakusho K.K.) 09-02-81.
Patents Abstracts of Japan, vol. 4, No. 103 (p. 20), (585) July 23, 1980 & JP-A-55 62589 (Matsushita Kenki Sangyo K.K.) 05-12-80.

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