JPH06119262A - Computer terminal system - Google Patents

Abstract

PURPOSE:To dispense with an actuating operation of a program by making a storage medium store an execution program of a computer terminal, and making the terminal read in automatically the program by allowing the storage medium to approach. CONSTITUTION:A data transmitting/receiving part is provided on both of a computer terminal 1 and a storage medium, so that the computer terminal 1 transmits a read command C1 of an executing program whenever a prescribed time elapses. When a non-contact IC card 2 being the storage medium approaches the computer terminal 1 and receives surely the read command C1, the card 2 takes the stored program as program transmitting data Dn (n=1, 2,...) and starts transmission by each prescribed quantity. When the computer terminal 1 complets reception of the transmitting data Dn, the program can be executed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a computer terminal system including a storage medium and a computer terminal each having a communication section for transmitting and receiving data.

[0002]

2. Description of the Related Art Computer terminals such as personal computers and workstations are often used by a plurality of people. At this time, application programs used by each person are stored in a hard disk or the like, and the user selects and executes them by keyboard input or the like. Therefore, each user executes the desired software because (1) the directory management in the hard disk is complicated, and (2) the work environment of the driver and the front-end processor is different for each user and each program. The startup operation for doing this was very complicated.

On the other hand, the IC card technology has made remarkable progress, and it is equipped with a wireless transmission / reception means to enable non-contact transmission of stored data. However, the transmitted data is I
It is a small amount of data such as D data, and the function of the IC card is beyond the identification tag of an individual or article.

[0004]

As described above, conventionally, there have been cases where the starting operation until each user executes desired software is complicated. Therefore, the present invention automatically reads the program by bringing the storage medium storing the program close to a computer terminal equipped with a wireless transmission / reception means, so that the user can automatically start the program without performing a start operation. Make sure the desired program starts
The purpose is to relieve the computer terminal user from the complexity of startup operation.

[0005]

The present invention provides a computer terminal system comprising a storage medium and a computer terminal each having a communication section for wirelessly transmitting and receiving data.
A computer program is stored in the storage medium, the computer terminal transmits a specific electronic message every time a certain period of time elapses, and the storage medium transmits storage data based on the reception of the specific electronic message, whereby the computer terminal It is adapted to receive a program stored in the storage medium and permit execution of the program.

Further, the program is stored in a storage device of the computer terminal itself, a specific electronic message is transmitted every time a predetermined time elapses, and the storage medium transmits an identification code based on the reception of the specific electronic message so that the computer terminal stores the program. The program corresponding to the identification code is read and allowed to be executed.

[0007]

The user of the computer terminal carries the storage medium in which the program used by each user is stored. The storage medium and the computer terminal are provided with a wireless transmission / reception device, and the computer terminal automatically reads the program when the storage medium is brought close to the computer terminal. Therefore, when the user carries the storage medium and approaches the computer terminal, the program is automatically started.

Alternatively, the program is stored in the computer terminal side, and the storage medium transmits an identification code corresponding to the program. When the identification code is received by the computer terminal, the corresponding program is automatically started.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A case in which the present invention is applied to a computer terminal system composed of a personal computer and an IC card will be described in detail with reference to the drawings.

FIG. 1 shows the appearance of a personal computer (hereinafter referred to as a PC terminal) 1 as a computer terminal and a non-contact IC card 2 as a storage medium.
In the figure, the PC terminal 1 is composed of a computer main body 11, a display 14 and a keyboard 15, and the computer main body 11 is provided with an antenna 13 used for wireless communication with the non-contact IC card 2. The non-contact IC card 2 also has an antenna (not shown), and communicates with the computer main body 11.

FIG. 2 is a block diagram showing the internal structure of the non-contact IC card 2 as a storage medium. A transmission / reception control circuit 25 is connected to the CPU 21 of the non-contact IC card 2. The CPU 21 controls transmission / reception of data according to a program written in the ROM 22 in advance. The data input / output in this control is temporarily stored in a predetermined memory area of the RAM 23, and the data to be stored for a long term such as document data is written in the EEPROM 24. The card 2 is also supplied with power from the PC terminal 1 by electromagnetic induction. Therefore, the power supply circuit 26 is connected to the transmission / reception control circuit 25. Electric power is supplied from the power supply circuit 26 to each electronic component included in the card 2.

FIG. 3 is a block diagram showing the internal configuration of the PC terminal 1. A display 14 as an output device, a keyboard 15 as an input device, and a transmission / reception control circuit 37 are connected to the CPU 31 on the PC terminal 1 side through interface circuits 34 to 36. The transmission / reception control circuit 37 transmits / receives data to / from the non-contact IC card 2 as a storage medium via the antenna 13. CPU3
Reference numeral 1 controls these input / output devices according to a program previously written in the ROM 32. The input / output data is stored in a predetermined memory area of the RAM 33.

FIG. 4 shows a contactless IC card 2 to a PC terminal 1
Is a frame format of control data transmitted to the. The control data includes a start flag 41, ID data (ID) 42, response data 43, a transfer counter (CNT) 44, data 46, a check flag 47, and an end flag 48. The start flag 41 and the end flag 48 notify the start and end of the frame. ID4
Reference numeral 2 is an identification code of the program stored in the non-contact IC card 2 which is the transmission source of the control data. The response data 43 is a code indicating whether the control data is a response to a read command described later from the PC terminal 1 or a response to a write command similarly described later. The transfer counter (CNT) 44 is a contactless I
It represents the number of remaining frames during the transmission of data stored in the C card 2. The data 46 is an application program operated on the PC terminal 1.

When the control data is a response to a write command to be described later transmitted from the PC terminal 1, a write completion command is transmitted as the data 46 in place of the program. The check flag 47 is used to check whether or not the content of the frame has been correctly transmitted.

FIG. 5 shows the contactless IC card 2 from the PC terminal 1.
It is a frame format of control data transmitted toward.
In the figure, start flag 51, ID data (ID) 5
2. The functions of the inspection flag 55 and the end flag 56 are shown in FIG.
Is the same as the control data of. The commands in FIG. 5 include a read command as a first specific message, a subsequent read command, and a write command as a second specific message. The data 54 includes non-contact IC
Update data for updating the storage data of the card 2 is entered.

FIG. 6 shows a part of the memory map of the RAM 33 on the PC terminal 1 side. In the RAM 33, an area M1 for temporarily storing reception data used for communication with the non-contact IC card 2, an area M2 for temporarily storing transmission data, and an area required for operating a desired application program. Elijah M that stores the OS
3 and an area M4 for storing an application program. The operations of the PC terminal 1 and the non-contact IC card 2 will be described below with reference to the flowcharts of FIGS. 7 and 8. FIG. 7 is a flowchart showing the operation of the PC terminal 1. First, in FIG. 7, when the computer main body 11 is turned on (step S1), C
The reading flag set in the predetermined register of the PU 31 is reset (step S2), and the reading command is transmitted (step S3). And immediately contactless I
Waiting to receive data from C card (step S
4). If the transmission data from the non-contact IC card 2 is not received even after the elapse of the fixed time T, the process returns to the reading flag reset step (steps S40 and S5). When the data is received within the certain time T, the data is temporarily stored in the reception data area M1 of the RAM 33, and the CPU 31 checks the ID data 42, the response data 43 and the inspection flag 47 (steps S5 and S6). If it is confirmed that the data has no abnormality and is a response to the read command, the reading flag is set (step S7), and the received data is transferred to the program storage area M4 of the RAM 33 (step S8). If the received data is abnormal (step S6), the process returns to step S2 of resetting the reading flag and the data reading is performed again from the beginning.

When the data is transferred to the program storage area M4, the transfer counter (CNT) 44 is checked and the remaining amount of the transmission data is confirmed by the value of CNT (step S9). If CNT is 0, it is received in FIG.
Means that it is the final transmission frame of the program transmitted by the non-contact IC card 2, and the end of data reception is confirmed. Non-contact IC if CNT is not 0
This means that the program still remains on the card 2 side, and the PC terminal 1 transmits a continuous read command described later (step S18) and waits for data reception in step S4.
Return to.

If any key of the keyboard 15 is designated as an input key in advance, after the reception of the program is completed (step S10), the execution of the program is started by pressing the key (steps S11, S12). Of course, the reception program may be started immediately after reception without designating the input key. During execution of the program, the execution of the program can be terminated at any time by pressing the end key. Here, the end key is an arbitrary key for which a program end function is set in advance.

When the new data obtained as a result of the execution of the program is stored in the non-contact IC card 2, or when the stored data of the non-contact IC card 2 is updated, a message including the write data 54 is sent from the PC terminal 1 side. To send.
The write data 54 is transmitted together with the write command in the frame format shown in FIG. The transmission of the data is performed by pressing a preset write key or the like (steps S13 and S14). When the writing of data is completed on the non-contact IC card 2 side, the write completion command is transmitted instead of the data 46 together with the response data 43 indicating the response to the write command. When the command is received, ID data 42 and response data 4
3 and the inspection flag 47 are checked for completion of writing (steps S15 and S16). When it is confirmed that the data writing is completed without any abnormality, the end of the program execution is allowed. In this case as well, the execution of the program is terminated by pressing the preset end key or the like (step S17).

When the program ends, the process returns to the first step of this loop, that is, the reading flag resetting step S2. If any error occurs in writing data to the non-contact IC card 2, the display 14 indicates “There is an error in writing data to the card.”
Is displayed to warn the operator of the PC terminal 1 to be careful, the program execution is continued, and the retry of the write operation is permitted (step S19).

Next, the operation of the non-contact IC card 2 as a storage medium will be described with reference to the flowchart of FIG. The non-contact IC card 2 is carried by the operator, and the non-contact IC card itself does not have a power source, but receives power from the PC terminal 1 by electromagnetic induction. Therefore, when the operator carries the non-contact IC card 2 and approaches the energized PC terminal 1, the non-contact IC card 2 is automatically turned on to wait for data reception from the PC terminal 1. (Step S20). When data is received (step S
21) Check the inspection flag to see if there is any abnormality in the data (step S22). If there is no abnormality in the received data, the process according to the command included in the received message is selected and executed. First, when the command is a read command (step S23), the non-contact IC card 2 presets the transfer counter CNT to an initial value according to the amount of data (step S24), and stores a certain amount of card data in the frame format of FIG. It is transmitted (step S25). Furthermore C
The value of NT is decremented by 1 (step S26), and the state returns to the state of waiting for data reception (step S20).

If the command is the read command in step S27, the remaining card data is transmitted (step S28), and CNT is decremented by 1 (step S28).
29) Similarly, waiting for data reception (step S20)
Return to. If the command received from the PC terminal 1 is neither a read command nor a continuous read command, the received command is a write command (steps S27, 30), and at this time, a new contactless IC card is also issued. Since the data to be written to 2 has been sent, this is sent to the EE on the non-contact IC card 2 side.
Write to the PROM 24 (step S30). When the writing (or updating) of the data is completed, a writing completion command is transmitted (step S31), and the process similarly returns to the data reception waiting state (step S20).

FIG. 9 is a timing chart showing how electronic messages are sent and received until the program of the non-contact IC card 2 is transmitted to the PC terminal 1. When the power of the PC terminal 1 is turned on, the PC terminal 1 transmits a telegram including the read command C1 every time a predetermined time T elapses. Non-contact IC card 2 is P
Read command C1 that is close enough to C terminal 1
When receiving the message, the non-contact IC card 2 divides the stored program into predetermined amounts, and uses this as program transmission data, ID data 42 and transfer counter (CNT) data 4
4 and the like in the frame format shown in FIG. Upon receiving the program transmission data D1 of the first frame, the PC terminal 1 confirms the value of CNT and then transmits the electronic message including the continuation read command C2. The non-contact IC card 2 which has received the message sequentially transmits the rest of the stored program as transmission data D2, D3, .... Hereinafter, every time a read command is transmitted from the PC terminal 1, a fixed amount of transmission data Dn (n = 3, 4, ...
・) Is transmitted until the program is completely transmitted.

FIG. 10 shows a PC terminal 1 with a non-contact IC card 2
The following shows the transmission / reception of a message when the program is executed and the resulting data is newly stored in the non-contact IC card 2. First, after the transmission of the program transmission data Dn stored in the card 2 is completed following FIG. 9, the program is executed after waiting for a program execution confirmation operation by the PC terminal user. This execution confirmation operation is not essential, and the program may be automatically started when the transmission of the program transmission data Dn is completed.

By executing the program transmitted from the card 2, new data KD4 is obtained. In order to store this in the non-contact IC card 2, the data K
D4 is transmitted from the PC terminal 1 together with the write command C3. When an abnormality occurs in writing the data KD4 into the non-contact IC card 2, a message notifying that the abnormality has occurred is displayed on the display 14. If writing is completed without any error after retrying, contactless IC card 2
The electronic message including the write end command C4 is transmitted. Program end The input operation terminates the program execution, and the read command C shown at the beginning of FIG.
Return to the transmission state of 1.

The case where the program and data stored in the non-contact IC card are transmitted and received to and from the PC terminal has been described above. However, the program is stored in the PC terminal and the non-contact card stores only ID data as an identification code. You may make it transmit. At this time, the PC terminal stores the program in the built-in hard disk or the like and activates the program corresponding to the ID data based on the reception of the ID data.

[0027]

According to the inventions of claims 1 to 4, it is possible to simply bring the storage medium close to the computer terminal.
A desired program is read and this program can be executed by the computer terminal. Therefore, regardless of the setting environment of the computer terminal, the user can execute the desired program without performing a startup operation or by a very simple key input operation. That is, the user can immediately obtain the setting environment of each individual without any particular knowledge about the activation of the program, can immediately perform the work in the environment, and can be relieved from the troublesomeness of the activation operation of the program.

According to the second aspect of the present invention, even if a plurality of storage media storing different programs approach the computer terminal at substantially the same time, the program first transmitted by one of the storage media is the computer terminal. When it is started to be received by, the reception of another program is not permitted until the transmission of this program is completed and the execution is completed, and the transmitted programs do not interfere with each other.

According to the third aspect of the invention, the storage medium can be used as a rewritable storage medium which is easy to handle, like the conventional floppy disk.

Further, according to the invention of claim 4, since the storage medium only needs to transmit the identification code of the program, the storage capacity of the storage medium can be small, and the transmission error of the program does not occur.

[Brief description of drawings]

FIG. 1 is an external view of a computer terminal system including a storage medium and a PC terminal according to the present invention.

FIG. 2 is a block diagram showing an internal configuration of a storage medium.

FIG. 3 is a block diagram showing an internal configuration of a PC terminal.

FIG. 4 is a frame format of control data transmitted from a storage medium to a PC terminal.

FIG. 5 is a frame format of control data transmitted from a PC terminal to a storage medium.

FIG. 6 is a memory map of a RAM of a PC terminal.

FIG. 7 is an operation flowchart of the PC terminal.

FIG. 8 is an operation flowchart of a non-contact IC card.

FIG. 9 is a timing chart until data stored in a non-contact IC card is read by a PC terminal.

FIG. 10 is a timing chart when data is written in a non-contact IC card.

[Explanation of symbols]

 1 computer terminal 2 non-contact IC card 25, 37 transmission / reception control circuit 42 card ID data C1 read command C3 write command

Claims (4)

[Claims] 1. A computer terminal system comprising a storage medium and a computer terminal each having a communication unit for wirelessly transmitting and receiving data, wherein the storage medium stores an operation program of a computer, and the computer terminal stores the computer program every predetermined time. The first specific electronic message is transmitted, and the storage medium transmits the storage program based on the reception of the specific electronic message, whereby the computer terminal receives the program stored in the storage medium and executes the program. A computer terminal system characterized by allowing. 2. The storage medium divides the storage program into fixed amounts, further adds an identification code of the storage medium and transmits the fixed amount unit, and the computer terminal receives the storage program. Each time the identification code is identified, the reception of the data is stopped when the certain amount of received data does not have the code, and the state in which the first specific message is transmitted again at each elapse of the certain time The computer terminal system according to claim 1, wherein the computer terminal system returns. 3. A computer terminal system comprising a storage medium and a computer terminal each having a communication unit for wirelessly transmitting and receiving data, wherein the computer terminal transmits a second specific message and the storage medium is the second specific message. The computer terminal system according to claim 1 or 2, wherein data transmitted from the computer terminal is received based on the reception of a specific message, and the stored data is updated with the received data. 4. A computer terminal system comprising a storage medium and a computer terminal each having a communication unit for wirelessly transmitting and receiving data, wherein the computer terminal transmits the first specific electronic message at regular time intervals, and the storage unit stores the first specific message. The medium transmits the identification code based on the reception of the first specific message, and the computer terminal reads the program corresponding to the identification code from the storage device of the computer terminal itself by receiving the identification code, A computer terminal system characterized by permitting execution of a program.