JPH0488493A - Memory ic card - Google Patents

Abstract

PURPOSE:To reduce the size of the physical shape by operating a selecting circuit from outside and connecting the circuit of one optional memory IC card to a connector. CONSTITUTION:The IC card has a means 5 which can connect the circuits of plural memory IC cards 1 and the circuit of one optional memory IC card to the connector 2 by external operation. Namely, an operation means 5 inputs an electric signal to, for example, a specific connector pin or sets a value in a specific register in the memory IC card. Consequently, when the memory IC card 1 is used by a personal computer, etc., the storage capacity of each memory IC card is determined, so even when information needs to be stored on >=2 cards, hardware for one slot is only required on the personal computer side. Consequently, the physical shape is made small.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a memory IC card, and particularly to a memory IC card used as a substitute for a storage medium such as a floppy disk.

[Conventional technology]

Conventionally, when using this type of memory IC card as a substitute for a storage medium such as a floppy disk in a personal computer, etc., a memory IC card is used as shown in FIG.
A C card had only enough circuitry built in for one floppy disk or one other storage medium.

In FIG. 2, 11 is a memory IC card, 2 is a connector, and 3 is a floppy disk or other storage medium 1.
This is a memory circuit for each.

[Problem to be solved by the invention]

In the above-mentioned memory IC card, for example, in a personal computer, the storage capacity of the card is determined for compatibility with a floppy disk, and - memory IC
A memory IC card containing a program and a memory IC containing data because it is not possible to store all information on a card.
When working with separate cards or Memo IJ
When transferring data from an IC card to another memory IC card, the personal computer accesses only one card at a time.
This requires slots for two cards, which has the disadvantage of increasing the physical size, especially in small personal computers.

[Means to solve the problem]

The memory IC card of the present invention is a means for connecting the circuits of a plurality of memory IC cards and the circuit of any one of the circuits of the plurality of memory IC cards to a connector by an operation from outside the card. have.

〔Example〕

FIG. 1 is a block diagram showing one embodiment of the present invention.

In Figure 1, 1 is a memory IC card, 2 is a connector,
31 to 33 are each a memory circuit for one floppy disk or another storage medium; 4 is a selection circuit;
5 operates the selection circuit to select one of the memory circuits 31 to 33;
This is an operation means for electrically connecting the connector 2 to the connector 2.

The operating means 5 may be, for example, inputting an electrical signal to a specific connector bin or setting a value in a specific register in the memory IC card, although not shown in FIG.

〔Effect of the invention〕

As explained above, when a memory IC card is used in a personal computer or the like, the storage capacity of each memory IC card is determined, so information can be stored in two or more cards and work can be done easily. Even if it is necessary to do so, the personal computer only needs to have one slot worth of hardware, which has the effect of reducing the physical size.

As a concrete example of the above, the capacity of a floppy disk is I
Since MB has become the standard, there are cases where the capacity of a memory IC card cannot be greater than IMB due to compatibility with it, and information larger than IMB is stored separately on two or more cards.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a block diagram showing a conventional example. 1...Memory IC card, 2...Connector, 31~
33...Memory circuit, 4...Selection circuit,...Operating means.

Claims (1)

[Claims] It has built-in circuits for multiple memory IC cards.
It has a built-in selection circuit that electrically connects the circuit of any one memory IC card among the circuits of multiple memory IC cards to the card connector, and this selection circuit can be operated externally. A memory IC card characterized by having means for connecting the circuit of any one memory IC card to a connector.