JPH022772U

JPH022772U -

Info

Publication number: JPH022772U
Application number: JP1989055787U
Authority: JP
Priority date: 1989-05-17
Filing date: 1989-05-17
Publication date: 1990-01-10
Also published as: JPH0426923Y2

Description

[Brief explanation of the drawing]

第１図はＩＣカードの一例を示す正面図、第２
図はその断面図、第３図は従来のＩＣカードにお
けるＩＣモジユールの一例を示す回路図、第４図
はＥＥＰＲＯＭを用いたＩＣモジユールの一例を
示す回路図、第５図は本考案によるＩＣカードの
ＥＥＰＲＯＭにおける記憶領域の一実施例を示す
概念図、第６図は同じく本考案における一実施例
の動作を示すフローチヤートである。１……ＩＣカード、２……カード基体、３……
凹部、４……ＩＣモジユール、５……接点端子、
４０……ＣＰＵ（セントラル・プロセツシング・
ユニツト）、４１……ＲＯＭ（リード・オンリー
・メモリ）、４３……（エレクトリカリ・イレイ
ザブル・アンド・フログラマブル・ＲＯＭ）。 Figure 1 is a front view showing an example of an IC card, Figure 2 is a front view showing an example of an IC card.
3 is a circuit diagram showing an example of an IC module in a conventional IC card, FIG. 4 is a circuit diagram showing an example of an IC module using EEPROM, and FIG. 5 is a circuit diagram of an IC card according to the present invention. FIG. 6 is a conceptual diagram showing an embodiment of a storage area in an EEPROM, and FIG. 6 is a flowchart showing the operation of an embodiment of the present invention. 1...IC card, 2...card base, 3...
recess, 4...IC module, 5...contact terminal,
40...CPU (Central Processing)
unit), 41...ROM (Read Only Memory), 43... (Electrically Erasable and Programmable ROM).

補正平１．５．３０実用新案登録請求の範囲を次のように補正する
。Amendment May 30, 2001 The scope of claims for utility model registration is amended as follows.

【実用新案登録請求の範囲】 (1) 電気的信号の処理機能を有する能動素子を
備え、記憶素子としてＥＥＰＲＯＭを用いたＩＣ
カードにおいて、上記ＥＥＰＲＯＭの一部のメモ
リ領域に対するアクセス動作を直接可能にする第
１の処理回路と、上記ＥＥＰＲＯＭの他のメモリ
領域に対するアクセス動作の許可と禁止とを上記
一部のメモリ領域から読出したデータの内容に応
じて判断する第２の処理回路とが設けられている
ことを特徴とするＩＣカード。 (2) 実用新案登録請求の範囲第(1)項において、
上記ＥＥＰＲＯＭの一部のメモリ領域に格納され
、上記他のメモリ領域へのアクセス禁止を表わす
データの少なくとも１が、上記ＥＥＰＲＯＭが初
期状態にあるときのデータ状態となるように、上
記第２の処理回路が構成されていることを特徴と
するＩＣカード。[Claims for Utility Model Registration] (1) An IC equipped with an active element having an electrical signal processing function and using an EEPROM as a memory element.
In the card , a first processing circuit that directly enables an access operation to a part of the memory area of the EEPROM and a permission or prohibition of an access operation to another memory area of the EEPROM are read from the part of the memory area. and a second processing circuit that makes a judgment according to the content of the data.
An IC card that is characterized by (2) In paragraph (1) of claims for utility model registration,
The second process is performed so that at least one of the data stored in a part of the memory area of the EEPROM and indicating prohibition of access to the other memory area is in a data state when the EEPROM is in an initial state. An IC card characterized by being configured with a circuit .

Claims

[Claims for Utility Model Registration] (1) An IC equipped with an active element having an electrical signal processing function and using an EEPROM as a memory element.
In the card, the EEPROM is operated by inputting a stored data erasing command from the outside, and the EE is activated by inputting the erasing command in accordance with data stored in a specific storage area of the EEPROM.
An IC card characterized by being configured to prohibit erasure of PROM data. (2) In paragraph (1) of claims for utility model registration,
An IC card characterized in that data to be stored in the specific storage area in order to prohibit erasure of data in the EEPROM is data represented in the initial state of the EEPROM.