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Title:
STORAGE CAPACITY IDENTIFYING METHOD FOR MEMORY CARD
Document Type and Number:
Japanese Patent JPH0764866
Kind Code:
A
Abstract:

PURPOSE: To identify the storage capacity with an existing memory card without changing the memory card or writing any data in the memory card.

CONSTITUTION: This system is equipped with a main body device 71 constituted of a CPU 73, ROM 74, RAM 75, inputting and outputting devices 76 and 77, interface 78 connected with each signal line such as a data bus and an address bus, pull-up resistance 79, and pull-down resistance 81 or the like, and a 1M byte capacity memory 11. At the time of inserting and connecting the memory 11 into/with the main body device 71, and reading data from the memory card 11 by a different address, the storage capacity of the memory card 11 is identified according to the matching or mismatching of data read at the time of pull-up with the data read at the time of pull-down by the address bus line for the memory card of the main body device 71 with which the memory card 11 is connected.


Inventors:
OHASHI MASAKAZU
Application Number:
JP1993000212503
Publication Date:
March 10, 1995
Filing Date:
August 27, 1993
Export Citation:
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Assignee:
SHARP KK
International Classes:
G06F12/06; G06F12/16; (IPC1-7): G06F12/16; G06F12/06
Attorney, Agent or Firm:
梅田 勝