JPH05210770A - Contactless card and card reader/writer - Google Patents
Contactless card and card reader/writerInfo
- Publication number
- JPH05210770A JPH05210770A JP4015826A JP1582692A JPH05210770A JP H05210770 A JPH05210770 A JP H05210770A JP 4015826 A JP4015826 A JP 4015826A JP 1582692 A JP1582692 A JP 1582692A JP H05210770 A JPH05210770 A JP H05210770A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- card
- contactless card
- count value
- transmitted
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、電波又は光を媒体にし
てデータを送受信する非接触カード及びカードリーダ／
ライタに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a contactless card and a card reader / card for transmitting and receiving data using radio waves or light as a medium.
It is about the writer.
【０００２】[0002]
【従来の技術】図１は電波又は光を媒体にして信号を送
受信する非接触カードの構成を示す模式的ブロック図で
ある。非接触カード10は信号処理を行なうCPU １と、ユ
ーザプログラムを記憶するROM ２と、信号及び信号処理
した信号等を記憶するRAM ３と、変復調を行い信号の入
出力を制御する入出力制御回路４とを備えており、それ
らはバス７により接続されている。入出力制御回路４は
電波８を送受信するアンテナ５と接続されている。また
電池６を内蔵しており、電池６は電源を必要とする各回
路と図示しない配線により接続されている。2. Description of the Related Art FIG. 1 is a schematic block diagram showing the structure of a contactless card which transmits and receives signals using radio waves or light as a medium. The contactless card 10 includes a CPU 1 that performs signal processing, a ROM 2 that stores a user program, a RAM 3 that stores signals and signal-processed signals, and an input / output control circuit that controls input / output of signals by performing modulation / demodulation. 4 and are connected by a bus 7. The input / output control circuit 4 is connected to an antenna 5 that transmits and receives radio waves 8. Further, the battery 6 is built in, and the battery 6 is connected to each circuit requiring a power source by wiring not shown.
【０００３】次にこの非接触カード10の動作を説明す
る。いま、図示しないリーダライタが、電波８により送
信したトリガ信号をアンテナ５が受信すると、非接触カ
ード10内の各回路にクロックが供給されて非接触カード
10が動作を開始する。続いてリーダライタが電波８によ
りコマンドを送信する。そのコマンドをアンテナ５が受
信すると、入出力制御回路４に与え、入出力制御回路４
によりコマンドをデジタル信号に復調してCPU １に与え
る。CPU １はコマンドを復調したデジタル信号により、
ROM ２に記憶しているプログラムを実行して信号処理を
行ない信号処理後の信号をRAM ３に記憶させる。Next, the operation of the contactless card 10 will be described. When the antenna 5 receives the trigger signal transmitted by the radio wave 8 by the reader / writer (not shown), a clock is supplied to each circuit in the contactless card 10 to contact the contactless card.
10 starts working. Then, the reader / writer sends a command by radio wave 8. When the antenna 5 receives the command, it gives it to the input / output control circuit 4, and the input / output control circuit 4
The command is demodulated to a digital signal and is given to CPU 1. CPU 1 uses the digital signal that demodulates the command
The program stored in ROM 2 is executed to perform signal processing, and the signal after signal processing is stored in RAM 3.
【０００４】また送信すべき信号、例えば信号処理後の
信号等を入出力制御回路４で変調してアンテナ５に与え
て、電波８によりリーダライタへ送信する。そして、こ
のような信号処理が終了すると、各回路へ与えていたク
ロックの供給を停止する。それにより非接触カード10
は、動作を停止し、電池６の消費電流が減少し、トリガ
信号の受信待機状態になる。A signal to be transmitted, for example, a signal after signal processing is modulated by the input / output control circuit 4 and given to the antenna 5 and transmitted to the reader / writer by the radio wave 8. Then, when such signal processing is completed, the supply of the clock applied to each circuit is stopped. This makes contactless cards 10
Stops its operation, the current consumption of the battery 6 decreases, and enters a standby state for receiving a trigger signal.
【０００５】このように、非接触カード10はその動作時
以外は、クロックの供給を停止して電池６の電力消費を
低減させるようになっている。なお、非接触カード10の
使用可能期間は電池６の容量に基づいて計算して予め定
められている。As described above, the non-contact card 10 is designed to stop the supply of the clock except when the non-contact card 10 is in operation to reduce the power consumption of the battery 6. Note that the usable period of the contactless card 10 is calculated based on the capacity of the battery 6 and is predetermined.
【０００６】[0006]
【発明が解決しようとする課題】このように、従来の非
接触カードは、その使用可能期間を、内蔵している電池
の容量に基づいて予め定めているため、使用可能期間が
終了した時点で電池の容量が残存している状態が起こり
得、反対に使用可能期間が終了していない時点で、電池
の容量が既に消滅している状態が起こり得るという問題
がある。本発明は斯かる問題に鑑み、使用可能期間が電
池の残存容量に応じてタイムリーに認識し得る非接触カ
ード及びカードリーダ／ライタを提供することを目的と
する。As described above, in the conventional contactless card, the usable period of the contactless card is predetermined based on the capacity of the built-in battery. Therefore, when the usable period ends. There is a problem that the battery capacity may remain, and conversely, the battery capacity may already disappear when the usable period has not expired. In view of such a problem, it is an object of the present invention to provide a contactless card and a card reader / writer whose usable period can be recognized in a timely manner according to the remaining capacity of the battery.
【０００７】[0007]
【課題を解決するための手段】第１発明に係る非接触カ
ードは、カードリーダへ信号を送信した送信回数をカウ
ンタがカウントし、信号の送信動作をした場合、カウン
タのカウント値をカードリーダへ送信する構成にする。
第２発明に係る非接触カードは、カードリーダへ送信す
る信号のビット数をカウンタでカウントし、信号の送信
動作をした場合、カウンタのカウント値をカードリーダ
へ送信する構成にする。In the contactless card according to the first aspect of the present invention, the counter counts the number of transmissions of the signal transmitted to the card reader, and when the signal is transmitted, the count value of the counter is transmitted to the card reader. Configure to send.
In the contactless card according to the second aspect of the invention, the number of bits of the signal transmitted to the card reader is counted by the counter, and when the signal is transmitted, the count value of the counter is transmitted to the card reader.
【０００８】第３発明に係る非接触カードは、信号の送
信回数又は送信した信号のビット数をカウントしたカウ
ンタのカウント値と比較すべき所定値を予め記憶してお
き、カウント値が所定値に達した場合は、信号の処理を
停止する構成にする。第４発明に係る非接触カードは、
信号を処理するCPU の動作時間を計時し、処理した信号
を送信する動作をした場合、計時した計時値をカードリ
ーダへ送信する構成にする。In the contactless card according to the third aspect of the present invention, a predetermined value to be compared with the count value of the counter that counts the number of times the signal is transmitted or the number of bits of the transmitted signal is stored in advance, and the count value becomes the predetermined value. When it reaches, the signal processing is stopped. The contactless card according to the fourth invention is
When the operation time of the CPU that processes the signal is measured and the processed signal is sent, the measured time value is sent to the card reader.
【０００９】第５発明に係る非接触カードは、信号を処
理するCPU の動作時間を計時した計時値を比較する所定
値を予め記憶し、計時値が所定値に達した場合は、信号
を送信する動作を停止する構成にする。第６発明に係る
非接触カードは、信号の送信回数又は送信する信号のビ
ット数のカウント値あるいは信号を処理するCPU の動作
時間の計時値を、カード使用者に対し報知する報知部を
備える構成にする。The contactless card according to the fifth aspect of the present invention stores in advance a predetermined value for comparing the time value obtained by measuring the operation time of the CPU for processing the signal, and transmits the signal when the time value reaches the predetermined value. The configuration is such that the operation to stop is stopped. A contactless card according to a sixth aspect of the present invention includes a notification unit for notifying a card user of the number of times a signal is transmitted, the count value of the number of bits of a signal to be transmitted, or the measured value of the operating time of a CPU that processes the signal. To
【００１０】第７発明に係るカードリーダライタは、非
接触カードから受信した信号に関連する数値と所定値と
を比較し、数値が所定値に達している場合は、カード使
用者に対し報知すべく非接触カードに備えた報知部を報
知動作させる指令をする構成にする。A card reader / writer according to a seventh aspect of the present invention compares a numerical value related to a signal received from a contactless card with a predetermined value, and when the numerical value reaches the predetermined value, notifies the card user of the fact. Therefore, the configuration is such that an instructing unit is instructed to perform an informing operation of the informing unit provided in the contactless card.
【００１１】[0011]
【作用】第１発明では、信号の送信動作を行うと、信号
の送信回数をカウントしたカウンタのカウント値をカー
ドリーダへ送信する。これにより、信号の送信回数によ
り、非接触カードの使用可能期間を認識できる。第２発
明では、信号の送信動作を行うと、送信した信号のビッ
ト数をカウントしたカウンタのカウント値をカードリー
ダへ送信する。これにより送信した信号のビット数のカ
ウント値により、非接触カードの使用可能期間を認識で
きる。In the first aspect of the present invention, when the signal transmission operation is performed, the count value of the counter that counts the number of signal transmissions is transmitted to the card reader. As a result, the usable period of the contactless card can be recognized based on the number of signal transmissions. In the second invention, when the signal transmission operation is performed, the count value of the counter that counts the number of bits of the transmitted signal is transmitted to the card reader. As a result, the usable period of the contactless card can be recognized from the count value of the number of bits of the transmitted signal.
【００１２】第３発明では、信号の送信回数又は送信し
た信号のビット数をカウントしたカウンタのカウント値
が、予め記憶した所定値に達した場合、信号の処理を停
止する。これにより、信号の誤った処理をせず、非接触
カードの使用可能期間を認識できる。第４発明では、信
号を処理するCPU の動作時間を計時し、処理した信号の
送信動作をした場合、計時した計時値をカードリーダへ
送信する。これにより、CPU の動作時間を計時した計時
値により、非接触カードの使用可能期間を認識できる。According to the third aspect of the invention, when the count value of the counter that counts the number of times the signal is transmitted or the number of bits of the transmitted signal reaches a predetermined value stored in advance, the signal processing is stopped. As a result, the usable period of the contactless card can be recognized without erroneously processing the signal. In the fourth invention, the operating time of the CPU that processes the signal is timed, and when the processed signal is transmitted, the measured time value is transmitted to the card reader. As a result, the usable period of the contactless card can be recognized from the time value obtained by measuring the operating time of the CPU.
【００１３】第５発明では、信号を処理するCPU の動作
時間を計時した計時値が、予め記憶している所定値に達
した場合、信号を送信する動作を停止する。これによ
り、信号の誤った処理をせず、非接触カードの使用可能
期間を認識できる。第６発明では、信号の送信回数又は
送信する信号のビット数のカウント値あるいは信号を処
理するCPU の動作時間の計時値を、カード使用者に報知
する。これにより、カード使用者に非接触カードの使用
可能期間に対する注意を喚起できる。According to the fifth aspect of the present invention, when the measured value obtained by measuring the operating time of the CPU for processing the signal reaches the predetermined value stored in advance, the operation of transmitting the signal is stopped. As a result, the usable period of the contactless card can be recognized without erroneously processing the signal. In the sixth invention, the card user is informed of the count value of the number of signal transmissions or the bit number of the signal to be transmitted, or the time value of the operating time of the CPU that processes the signal. As a result, the card user can be alerted to the usable period of the contactless card.
【００１４】第７発明では、非接触カードが送信した信
号に関連する数値を受信し、その数値が予め記憶してい
る所定値に達すると、非接触カードに備えた報知部を報
知動作させる指令をする。これにより、カードリーダラ
イタから、カード使用者に対し、非接触カードの使用可
能期間に対する注意を喚起させ得る。According to the seventh aspect of the present invention, when a numerical value related to a signal transmitted by the contactless card is received and the value reaches a predetermined value stored in advance, a command for causing the notification unit provided in the contactless card to perform a notification operation. do. As a result, the card reader / writer can alert the card user to the usable period of the contactless card.
【００１５】[0015]
【実施例】以下本発明をその実施例を示す図面により詳
述する。図２は本発明に係る非接触カードの要部構成を
示す模式的ブロック図である。非接触カード10は、カウ
ンタ９を内蔵しており、信号処理を行うCPU １と、ユー
ザプログラムを記憶するROM ２と、信号及び信号処理し
た信号を記憶するRAM ３と、変復調を行ない信号の入出
力を制御する入出力制御回路４とを備えており、それら
はバス７により接続されている。入出力制御回路４は電
波８を送受信するアンテナ５と接続されている。また電
池６を内蔵しており、電池６は電源を必要とする各回路
と図示しない配線により接続されている。The present invention will be described in detail below with reference to the drawings showing the embodiments thereof. FIG. 2 is a schematic block diagram showing the main configuration of the contactless card according to the present invention. The contactless card 10 has a built-in counter 9, a CPU 1 for signal processing, a ROM 2 for storing a user program, a RAM 3 for storing signals and signal-processed signals, and an input / output of signals for modulation / demodulation. And an input / output control circuit 4 for controlling output, which are connected by a bus 7. The input / output control circuit 4 is connected to an antenna 5 that transmits and receives radio waves 8. Further, the battery 6 is built in, and the battery 6 is connected to each circuit requiring a power source by wiring not shown.
【００１６】次にこのように構成された非接触カードの
第１の動作を、CPU １の制御内容のフローチャートを示
す図３とともに説明する。いま、図示しないカードリー
ダライタ（以下リーダライタという）が電波８により送
信したトリガ信号をアンテナ５が受信すると(S31) 、CP
U １により各回路にクロックを供給する(S32) 。それに
より非接触カードは動作を開始する。Next, the first operation of the contactless card configured as described above will be described with reference to FIG. 3 showing a flowchart of the control contents of the CPU 1. Now, when the antenna 5 receives the trigger signal transmitted by the radio wave 8 from a card reader / writer (not shown) (not shown) (S31), CP
The clock is supplied to each circuit by U1 (S32). Thereby, the contactless card starts operating.
【００１７】続いて、リーダライタが電波８により送信
したコマンドをアンテナ５が受信すると(S33) 、CPU １
はコマンドに応じてユーザプログラムを実行してデータ
処理を行う(S34) 。そしてコマンドに対する応答信号、
例えばデータ処理後のデータの信号をアンテナ５に与え
て電波８によりリーダライタへ送信する(S35) 。続い
て、CPU １によりカウンタ９のカウント値を１カウント
カウントアップさせて(S36) 、そのカウント値をRAM ３
に記憶させ、RAM ３が記憶している送信回数の累積カウ
ント値を更新する。Next, when the antenna 5 receives the command transmitted by the reader / writer by the radio wave 8 (S33), the CPU 1
Executes the user program according to the command and performs data processing (S34). And the response signal to the command,
For example, the data signal after data processing is given to the antenna 5 and transmitted to the reader / writer by the radio wave 8 (S35). Subsequently, the CPU 1 increments the count value of the counter 9 by 1 (S36), and the count value is stored in the RAM 3
And the cumulative count value of the number of transmissions stored in the RAM 3 is updated.
【００１８】そしてカウンタ９のカウント値の信号をア
ンテナ５から電波８で図示しないリーダライタへ送信す
る(S37) 。そしてカウント値の信号を送信した後、CPU
１の制御により各回路に供給していたクロックの供給を
停止する(S38) 。それにより非接触カードの動作が停止
し、トリガ信号の受信待機状態になる。Then, the signal of the count value of the counter 9 is transmitted from the antenna 5 to the reader / writer (not shown) by the radio wave 8 (S37). After sending the count value signal, the CPU
By the control of 1, the supply of the clock that has been supplied to each circuit is stopped (S38). As a result, the operation of the non-contact card is stopped and the trigger signal reception standby state is set.
【００１９】このようにして、非接触カードを動作させ
た回数、即ち信号の送信回数をカウンタでカウントし
て、そのカウント値をリーダライタへ送信するようにし
たから、カウンタのカウント値により電池の残存容量に
応じた非接触カードの使用可能期間を適正に認識でき
る。これにより、信号の誤った処理を未然に防止でき
る。In this way, the number of times the contactless card is operated, that is, the number of times the signal is transmitted is counted by the counter, and the count value is transmitted to the reader / writer. It is possible to properly recognize the usable period of the contactless card according to the remaining capacity. This can prevent erroneous processing of signals.
【００２０】次に非接触カードの第２の動作を、CPU １
の制御内容のフローチャートを示す図４とともに説明す
る。いま、図示しないリーダライタが電波８により送信
したトリガ信号をアンテナ５が受信すると(S41) 、CPU
１により各回路にクロックを供給する(S42) 。それによ
り非接触カード10は動作を開始する。続いてリーダライ
タが電波８により送信したコマンドをアンテナ５が受信
すると(S43) 、CPU １はコマンドに応じてユーザプログ
ラムを実行して信号処理を行う(S44) 。そしてコマンド
に対する応答信号、例えば信号処理後の信号をアンテナ
５に与えて、電波８によりリーダライタへ送信する(S4
5) 。Next, the second operation of the contactless card is executed by the CPU 1
4 will be described with reference to FIG. Now, when the antenna 5 receives the trigger signal transmitted by the radio wave 8 by the reader / writer (not shown) (S41), the CPU
The clock is supplied to each circuit by 1 (S42). Thereby, the contactless card 10 starts operating. Subsequently, when the antenna 5 receives the command transmitted by the reader / writer by the radio wave 8 (S43), the CPU 1 executes the user program according to the command and performs signal processing (S44). Then, a response signal to the command, for example, a signal after signal processing is given to the antenna 5 and transmitted to the reader / writer by the radio wave 8 (S4
Five) .
【００２１】続いて、CPU １はカウンタ９を制御して、
カウンタ９は送信した信号のビット数又はバイト数をカ
ウントする(S46) 。そしてカウンタ９のカウント値をRA
M に記憶し、RAM ３が記憶しているカウント値を更新す
る。カウンタ９のカウント値の信号をアンテナ５から電
波８で図示しないリーダライタへ送信する(S47) 。そし
てカウント値の信号を送信した後、CPU １の制御により
各回路に供給していたクロックの供給を停止させる(S4
8) 。それにより、非接触カードの動作が停止し、トリ
ガ信号の受信待機状態になる。Subsequently, the CPU 1 controls the counter 9 to
The counter 9 counts the number of bits or bytes of the transmitted signal (S46). Then, the count value of the counter 9 is RA
It is stored in M and the count value stored in RAM 3 is updated. The signal of the count value of the counter 9 is transmitted from the antenna 5 to the reader / writer (not shown) by radio wave 8 (S47). Then, after the count value signal is transmitted, the supply of the clock supplied to each circuit is stopped under the control of the CPU 1 (S4
8). As a result, the operation of the non-contact card is stopped and the trigger signal reception standby state is set.
【００２２】このようにして、非接触カードが送信する
信号のビット数をカウンタでカウントして、そのカウン
ト値をリーダライタへ送信するようにしたから、送信し
た信号のビット数のカウント値により、電池の残存容量
に応じた非接触カードの使用可能期間を適正に認識でき
る。そして、信号の誤った処理を未然に防止できる。In this way, the number of bits of the signal transmitted by the contactless card is counted by the counter, and the count value is transmitted to the reader / writer. Therefore, according to the count value of the number of bits of the transmitted signal, It is possible to properly recognize the usable period of the contactless card according to the remaining capacity of the battery. Then, erroneous processing of the signal can be prevented in advance.
【００２３】次に非接触カードの第３の動作を、CPU １
の制御内容のフローチャートを示す図５とともに説明す
る。いま、図示しないリーダライタが電波８により送信
したトリガ信号をアンテナ５が受信すると(S51) 、CPU
１により各回路にクロックを供給する(S52) 。それによ
り非接触カード10は動作を開始する。CPU １はカウンタ
９を制御し、カウンタ９によりCPU １の動作時間の計時
を開始させる。Next, the third operation of the contactless card is executed by the CPU 1
This will be described with reference to FIG. 5, which shows a flowchart of the control contents of FIG. Now, when the antenna 5 receives the trigger signal transmitted by the radio wave 8 by the reader / writer (not shown) (S51), the CPU
The clock is supplied to each circuit by 1 (S52). Thereby, the contactless card 10 starts operating. The CPU 1 controls the counter 9, and the counter 9 starts counting the operating time of the CPU 1.
【００２４】続いてリーダライタが電波８により送信し
たコマンドをアンテナ５が受信すると(S53) 、CPU １は
コマンドに応じてユーザプログラムを実行して、信号処
理を行う(S54) 。そしてコマンドに対する応答信号、例
えば信号処理後の信号をアンテナ５に与えて、電波８に
よりリーダライタへ送信する(S55) 。続いてCPU １はカ
ウンタ９によるCPU １の動作時間の計時を終了して、計
時値たるカウンタ９のカウント値を、RAM ３に記憶して
いるカウント値に加算して(S56) 、RAM ３に記憶してい
るCPU １の動作時間のカウント値を更新する。Subsequently, when the antenna 5 receives the command transmitted by the reader / writer by the radio wave 8 (S53), the CPU 1 executes the user program according to the command and performs signal processing (S54). Then, a response signal to the command, for example, a signal after signal processing is given to the antenna 5 and transmitted to the reader / writer by the radio wave 8 (S55). Subsequently, the CPU 1 ends the counting of the operating time of the CPU 1 by the counter 9 and adds the count value of the counter 9 which is the time count value to the count value stored in the RAM 3 (S56), and stores it in the RAM 3. Updates the stored count value of CPU 1 operating time.
【００２５】またカウンタ９のカウント値の信号をアン
テナ５から電波８で図示しないリーダライタへ送信し(S
57) 、送信した後CPU １の制御により各回路に供給して
いたクロックの供給を停止させる(S58) 。それにより非
接触カードが動作を停止し、トリガ信号の受信待機状態
になる。Further, the signal of the count value of the counter 9 is transmitted from the antenna 5 to the reader / writer (not shown) by radio wave 8 (S
57) After the transmission, the supply of the clock that has been supplied to each circuit is stopped by the control of the CPU 1 (S58). As a result, the contactless card stops operating and enters a standby state for receiving a trigger signal.
【００２６】このようにして、非接触カードのCPU が動
作した時間を計時した計時値たるカウント値をリーダラ
イタへ送信するようにしたから、CPU の動作時間を計時
した計時値により、電池の残存容量に応じた非接触カー
ドの使用可能期間を適正に認識できる。そして信号の誤
った処理を未然に防止できる。In this way, since the count value, which is the time count value of the time when the CPU of the contactless card operates, is transmitted to the reader / writer, the remaining time of the battery depends on the time value of the operation time of the CPU. It is possible to properly recognize the usable period of the contactless card according to the capacity. And it is possible to prevent erroneous processing of signals.
【００２７】次に非接触カードの第４の動作を、CPU １
の制御内容のフローチャートを示す図６とともに説明す
る。この場合、RAM ３には、カウンタ９のカウント値と
比較すべきカウント値の上限値を、非接触カードの再発
行が可能なように発行時に記憶させておく。いま、図示
しないリーダライタが電波８により送信したトリガ信号
をアンテナ５が受信すると(S61) 、CPU １により各回路
にクロックを供給する(S62) 。それにより非接触カード
10は動作を開始する。Next, the fourth operation of the contactless card is executed by the CPU 1
This will be described with reference to FIG. 6, which shows a flowchart of the control contents of FIG. In this case, the upper limit of the count value to be compared with the count value of the counter 9 is stored in the RAM 3 at the time of issuance so that the contactless card can be reissued. Now, when the antenna 5 receives the trigger signal transmitted by the radio wave 8 by the reader / writer (not shown) (S61), the CPU 1 supplies a clock to each circuit (S62). Contactless card by it
10 starts operation.
【００２８】続いてリーダライタが電波８により送信し
たコマンドをアンテナ５が受信すると(S63) 、CPU １は
コマンドに応じてユーザプログラムを実行して、信号処
理を行う(S64) 。そしてコマンドに対する応答信号、例
えば信号処理後の信号をアンテナ５に与えて電波８によ
りリーダライタへ送信する(S65) 。続いて、CPU １によ
りカウンタ９のカウント値を１カウントカウントアップ
させて(S66) 、そのカウント値をRAM ３に記憶させ、RA
M ３が記憶している送信回数のカウント値を更新する。Subsequently, when the antenna 5 receives the command transmitted by the reader / writer by the radio wave 8 (S63), the CPU 1 executes the user program according to the command to perform signal processing (S64). Then, a response signal to the command, for example, a signal after signal processing is given to the antenna 5 and transmitted to the reader / writer by the radio wave 8 (S65). Subsequently, the CPU 1 increments the count value of the counter 9 by 1 count (S66), stores the count value in the RAM 3, and RA
The count value of the number of transmissions stored in M 3 is updated.
【００２９】そしてカウンタ９のカウント値が、RAM ３
に予め記憶させている上限値に達しているか否かを判断
し(S67) 、上限値に達していないと判断した場合は、CP
U １の制御により、各回路に供給しているクロックの供
給を停止させて(S68) 、非接触カード10の動作を停止さ
せ、トリガ信号の受信待機状態になすようにステップ(S
61) に戻る。しかるに、ステップ(S67) において、カウ
ント値が上限値に達していると判断すると、各回路に供
給しているクロックの供給を停止させて(S69)、非接触
カード10の動作を不能にし、その後にトリガ信号を受信
しても動作を開始しないようになる。The count value of the counter 9 is stored in the RAM 3
It is judged whether or not the upper limit value stored in advance is reached (S67), and if it is determined that the upper limit value is not reached, CP
Under the control of U1, the supply of the clock supplied to each circuit is stopped (S68), the operation of the contactless card 10 is stopped, and a step for setting the standby state for receiving the trigger signal is performed (S68).
Return to 61). However, if it is determined in step (S67) that the count value has reached the upper limit value, the supply of the clock supplied to each circuit is stopped (S69), the operation of the contactless card 10 is disabled, and then the Even if the trigger signal is received, the operation will not start.
【００３０】このようにして非接触カードを動作させた
回数、即ち信号の送信回数をカウントしたカウント値が
予め設定した上限値に達した場合は、非接触カード10の
動作が不能になるから、非接触カードが信号の誤った処
理状態で使用されるのを確実に防止できる。In this way, when the number of times the contactless card is operated, that is, the count value obtained by counting the number of signal transmissions reaches the preset upper limit value, the operation of the contactless card 10 is disabled. It is possible to reliably prevent the contactless card from being used in an erroneous signal processing state.
【００３１】図７は非接触カードの他の実施例を示す正
面図である。この非接触カード10は図２に示した非接触
カードと同様に構成している。非接触カード10の正面側
には、カード使用者に対し、非接触カードの使用可能期
間に対する注意を喚起すべき表示又は警報音を発生する
報知部11を設けている。この報知部11には、例えばカウ
ンタ９のカウント値が、予め記憶している上限値に達し
た場合に、上限値に達したことを表示するようになって
いる。FIG. 7 is a front view showing another embodiment of the non-contact card. The contactless card 10 has the same structure as the contactless card shown in FIG. On the front side of the contactless card 10, there is provided a notifying unit 11 for generating a display or an alarm sound that should alert the card user to the usable period of the contactless card. For example, when the count value of the counter 9 reaches the upper limit value stored in advance, the notification unit 11 displays that the upper limit value has been reached.
【００３２】このように構成した非接触カード10に対し
信号を送受信する図示しないカードリーダライタの動作
を、その制御内容を示すフローチャートを示す図８とと
もに説明する。The operation of the card reader / writer (not shown) that transmits and receives signals to and from the contactless card 10 thus configured will be described with reference to FIG. 8 which is a flowchart showing the control contents.
【００３３】いま、図示しないリーダライタが電波８に
よりトリガ信号を非接触カード10へ送信する(S81) 。そ
の送信により、非接触カード10からトリガ信号に対する
レスポンス信号が送信されてきた場合は、続いてリーダ
ライタはコマンドを送信する(S82) 。それにより非接触
カード10は、そのコマンドに対応したユーザプログラム
を実行して、信号処理を行ない非接触カード10が送信し
た信号処理後の信号をリーダライタが受信する(S83) 。
そして受信した信号によりリーダライタは信号処理を行
う(S84) 。Now, a reader / writer (not shown) transmits a trigger signal to the contactless card 10 by the radio wave 8 (S81). When the response signal from the contactless card 10 is transmitted by the transmission, the reader / writer subsequently transmits a command (S82). Thereby, the contactless card 10 executes the user program corresponding to the command, performs signal processing, and the reader / writer receives the signal after signal processing transmitted by the contactless card 10 (S83).
Then, the reader / writer performs signal processing according to the received signal (S84).
【００３４】続いて、非接触カード10が送信した信号を
送信した送信回数、送信した信号のビット数又はCPU の
動作時間を計時した計時値たるカウンタ値をリーダライ
タが受信する(S85) 。続いてリーダライタにおいて、受
信カウント値がリーダライタ側に予め記憶している上限
値に達しているか否かを判断し(S86) 、上限値に達して
いると判断した場合は非接触カード10の報知部11を報知
動作させる指令をする(S87) 。Next, the reader / writer receives the number of transmissions of the signal transmitted by the non-contact card 10, the number of bits of the transmitted signal, or the counter value which is the time count value of the operating time of the CPU (S85). Subsequently, in the reader / writer, it is determined whether the reception count value has reached the upper limit value stored in advance on the reader / writer side (S86), and if it is determined that the upper limit value has been reached, the contactless card 10 A command is issued to cause the notification unit 11 to perform a notification operation (S87).
【００３５】なお、カウント値が上限値に達していない
と判断した場合は、報知部11を報知動作させる指令をし
ない。このように、カウンタのカウント値が上限値に達
した場合は、非接触カードが使用可能期間を満了して使
用不能である報知をすべき指令を報知部にしてカード使
用者に対し注意を喚起できる。本実施例ではリーダライ
タを用いたがカードリーダ又はカードライタであっても
同様の効果が得られる。If it is determined that the count value has not reached the upper limit value, no command is issued to cause the notification unit 11 to perform a notification operation. In this way, when the count value of the counter reaches the upper limit, the instruction to notify the contactless card that the contactless card has expired and cannot be used is sent to the notification unit to alert the card user. it can. In this embodiment, the reader / writer is used, but the same effect can be obtained with a card reader or a card writer.
【００３６】[0036]
【発明の効果】以上詳述したように、第１発明によれば
信号の送信回数のカウント値により、第２発明によれば
送信した信号のビット数のカウント値により、第３発明
によれば、信号の送信回数又は送信した信号のビット数
のカウント値が、予め記憶した所定値に達した場合に、
非接触カードの動作を停止することにより、第４発明に
よれば、CPU の動作時間の計時値により、第５発明によ
れば、CPU の動作時間の計時値が、予め記憶した所定値
に達した場合に非接触カードの動作を停止することによ
り、第６発明によれば、報知部の報知動作により、第７
発明によれば、リーダライタが非接触カードに備えた報
知部を報知動作させる指令をすることにより、いずれに
よっても電池の残存容量に応じた非接触カードの適正な
使用可能期間を認識できる。As described in detail above, according to the first invention, the count value of the number of times of signal transmission, according to the second invention, by the count value of the number of bits of the transmitted signal, and according to the third invention. , When the count value of the number of times the signal is transmitted or the number of bits of the transmitted signal reaches a predetermined value stored in advance,
By stopping the operation of the contactless card, according to the fourth invention, the measured value of the operating time of the CPU and according to the fifth invention, the measured value of the operating time of the CPU reaches a predetermined value stored in advance. According to the sixth aspect of the present invention, the operation of the contactless card is stopped in the case where
According to the present invention, the reader / writer issues a command to cause the notification unit provided in the non-contact card to perform a notification operation, so that the appropriate usable period of the non-contact card can be recognized depending on the remaining capacity of the battery.
【００３７】したがって、本発明によれば、非接触カー
ドに内蔵している電池の消耗状態を適正に認識して、合
理的に使用できる、またカウント値又は計時値が所定値
に達すると信号の処理動作を停止するから、信号の誤っ
た処理を防止できる非接触カードを提供できる。またカ
ード使用者に対し、非接触カードの使用可能期間に対す
る注意を喚起できカードリーダライタを提供できる等の
優れた効果を奏する。Therefore, according to the present invention, it is possible to properly recognize the consumption state of the battery built in the contactless card and to use it rationally, and to notify the signal when the count value or the clock value reaches a predetermined value. Since the processing operation is stopped, it is possible to provide a contactless card capable of preventing erroneous signal processing. In addition, the card user can be warned of the usable period of the non-contact card and a card reader / writer can be provided, which is an excellent effect.
【図１】従来の非接触カードの要部構成を示すブロック
図である。FIG. 1 is a block diagram showing a main configuration of a conventional non-contact card.
【図２】本発明に係る非接触カードの要部構成を示すブ
ロック図である。FIG. 2 is a block diagram showing a main configuration of a contactless card according to the present invention.
【図３】CPU の第１の制御内容を示すフローチャートで
ある。FIG. 3 is a flowchart showing a first control content of the CPU.
【図４】CPU の第２の制御内容を示すフローチャートで
ある。FIG. 4 is a flowchart showing a second control content of the CPU.
【図５】CPU の第３の制御内容を示すフローチャートで
ある。FIG. 5 is a flowchart showing a third control content of the CPU.
【図６】CPU の第４の制御内容を示すフローチャートで
ある。FIG. 6 is a flowchart showing a fourth control content of the CPU.
【図７】非接触カードの他の実施例を示す正面図であ
る。FIG. 7 is a front view showing another embodiment of the contactless card.
【図８】リーダライタの制御内容を示すフローチャート
である。FIG. 8 is a flowchart showing the control contents of the reader / writer.
１ CPU ２ ROM ３ RAM ４ 入出力制御回路 ５ アンテナ ６ 電池 1 CPU 2 ROM 3 RAM 4 I / O control circuit 5 Antenna 6 Battery
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成４年６月５日[Submission date] June 5, 1992
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００３７[Name of item to be corrected] 0037
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００３７】したがって、本発明によれば、非接触カー
ドに内蔵している電池の消耗状態を適正に認識して、合
理的に使用できる、またカウント値又は計時値が所定値
に達すると信号の処理動作を停止するから、信号の誤っ
た処理を防止できる非接触カードを提供できる。またカ
ード使用者に対し、非接触カードの使用可能期間に対す
る注意を喚起できるカードリーダライタを提供できる等
の優れた効果を奏する。Therefore, according to the present invention, it is possible to properly recognize the consumption state of the battery built in the contactless card and to use it rationally, and to notify the signal when the count value or the clock value reaches a predetermined value. Since the processing operation is stopped, it is possible to provide a contactless card capable of preventing erroneous signal processing. In addition, it is possible to provide a card reader / writer capable of calling the card user attention to the usable period of the non-contact card.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｇ０６Ｆ 1/28 Ｇ０６Ｋ 17/00 Ｆ 7459−5Ｌ 7165−5Ｂ Ｇ０６Ｆ 1/00 ３３３ Ｃ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Internal reference number FI Technical display location G06F 1/28 G06K 17/00 F 7459-5L 7165-5B G06F 1/00 333 C
Claims (7)
信号を送信するようにしている非接触カードにおいて、
前記信号の送信回数をカウントするカウンタを備え、前
記信号の送信動作をした場合に前記カウンタのカウント
値を送信すべく構成していることを特徴とする非接触カ
ード。1. A contactless card adapted to transmit a signal to a card reader using radio waves or light as a medium,
A contactless card, comprising a counter that counts the number of times the signal is transmitted, and is configured to transmit the count value of the counter when the signal is transmitted.
デジタル信号を送信するようにしている非接触カードに
おいて、送信した信号のビット数をカウントするカウン
タを備え、前記デジタル信号の送信動作をした場合に、
前記カウンタのカウント値を送信すべく構成しているこ
とを特徴とする非接触カード。2. A contactless card adapted to transmit a digital signal to a card reader by using radio waves or light as a medium, is provided with a counter for counting the number of bits of the transmitted signal, and performs the operation of transmitting the digital signal. In case,
A contactless card, characterized in that it is configured to transmit the count value of the counter.
ドにおいて、カウンタのカウント値と比較すべき所定値
を予め記憶する記憶部を備え、前記カウント値が前記所
定値に達した場合は、信号の処理を停止すべく構成して
いることを特徴とする非接触カード。3. The contactless card according to claim 1, further comprising a storage unit that stores in advance a predetermined value to be compared with the count value of the counter, and when the count value reaches the predetermined value. Is a contactless card characterized by being configured to stop the processing of signals.
体にしてカードリーダへ送信するようにしている非接触
カードにおいて、前記CPU の動作時間を計時する計時手
段を備え、前記処理した信号の送信動作をした場合に、
前記計時手段の計時値を送信すべく構成していることを
特徴とする非接触カード。4. A contactless card adapted to transmit a signal processed by a CPU to a card reader by using radio waves or light as a medium, comprising a clock means for clocking an operating time of the CPU, and the processed signal. When the transmission operation of
A contactless card, characterized in that it is configured to transmit the time value of the time measuring means.
て、計時手段の計時値と比較すべき所定値を予め記憶す
る記憶部を備え、前記計時値が前記所定値に達した場合
は、信号の送信動作を停止すべく構成していることを特
徴とする非接触カード。5. The contactless card according to claim 4, further comprising a storage unit that stores in advance a predetermined value to be compared with the time value of the time measuring means, and when the time value reaches the predetermined value, a signal is output. A non-contact card characterized by being configured to stop the transmission operation of.
４に記載の非接触カードであって、カウント値又は計時
値を、カード使用者に対し報知する報知部を備えている
ことを特徴とする非接触カード。6. The contactless card according to claim 1, claim 2, claim 3, or claim 4, comprising a notifying unit for notifying a card user of a count value or a time count value. A non-contact card characterized by that.
知部を設けている非接触カードに、電波又は光を媒体に
して信号を送信し、非接触カードが送信した信号を受信
するカードリーダ／ライタであって、非接触カードが送
信した信号に関連する数値と所定値とを比較する手段を
備え、前記数値が所定値に達している場合は、前記報知
部を報知動作させる指令をすべく構成していることを特
徴とするカードリーダ／ライタ。7. A card reader for transmitting a signal through a medium of radio waves or light to a contactless card provided with a notifying unit for notifying a card user, and receiving the signal transmitted by the contactless card. / A writer, comprising means for comparing a numerical value related to the signal transmitted by the contactless card with a predetermined value, and when the numerical value has reached the predetermined value, a command for informing the notification unit is issued. A card reader / writer characterized by being configured accordingly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4015826A JPH05210770A (en) | 1992-01-31 | 1992-01-31 | Contactless card and card reader/writer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4015826A JPH05210770A (en) | 1992-01-31 | 1992-01-31 | Contactless card and card reader/writer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05210770A true JPH05210770A (en) | 1993-08-20 |
Family
ID=11899660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4015826A Pending JPH05210770A (en) | 1992-01-31 | 1992-01-31 | Contactless card and card reader/writer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05210770A (en) |
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