Electronic circuit module and holder therefor

Details Electronic circuit module and holder therefor Electronic circuit module and holder therefor

G - Physics

11

B

328/114, 347/34,

G11B 33/02 (2006.01) G11C 19/08 (2006.01)

Patent

CA 1222026

ABSTRACT An electronic circuit module and a compatible module holder are provided which are particularly suitable for magnetic bubble memory applications. The holder has power-down warning and write-protect circuits utilizing light emitting diodes (LEDs) and photo-transistors to detect motion prior to removal of the module, and to detect the presence of a reflective sticker to write enable, respectively. Moreover, the module has separate ground buses for each power supply voltage to prevent circuit damage due to relative polarity reversal in case of ground non- connection upon insertion or removal of the module from the holder.

431149

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