JPS6286987A - Videotex terminal equipment - Google Patents

Abstract

PURPOSE:To know the updated condition without fail by accessing the desired picture information in the information center, storing it into the picture memory beforehand, accessing the information center periodically and checking whether or not the picture information is renewed and storing accumulatively the picture information into the picture memory. CONSTITUTION:By a telephone set 26, the information center of the captain network is called, the desired captain picture, for example, the captain picture needed by the user such as stock quotations, a concert schedule of a certain singer is designated by the key operation of a key pad 12 and stored into an FDD device 18. Thus, the desired captain picture is successively accessed and received from the information center periodically, the receiving contents and the memory contents of the above-mentioned picture memory are compared and when they are changed, the information is accumulatively recorded to the above-mentioned picture memory.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a videotex terminal device such as a captain system.

[Prior art and its problems] In recent years, it has been possible to connect the television receiver in each home to a telephone line, and to request essential information from the character and graphic information stored in an information center through the telephone network. An image information system that displays information on images, the so-called captain system, has been put into practical use.

In the captain system described above, since a wide variety of information is prepared in the information center, it is very time-consuming to search and call up the necessary information on the screen when needed. Therefore, it has been considered to file frequently used information in the computer's memory so that it can be viewed immediately when desired.

On the other hand, information provided by information providers is updated sequentially. For this reason, if you feel safe just because you have received the information, the information source may have been updated before you know it.
The problem is that people respond based on old information without knowing this.

E. Purpose of the Invention] The present invention has been made in view of the above points, and it stores a necessary captain screen in a screen memory such as a floppy disk, and when the information source is updated, the updated state of the screen information is updated. It is an object of the present invention to provide a Videotex terminal device that can reliably recognize the following information.

[Summary of the Invention] The present invention stores necessary captain screens in a screen memory such as a floppy disk, periodically accesses and receives the desired captain screens sequentially from an information center, and records the received contents and the screen memory. The information is compared with the stored contents, and if the information has changed, the information is cumulatively recorded in the screen memory.

[Embodiment of the Invention] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing the circuit configuration of a Videotex terminal device. In Fig. 1, 11 is a CPU, and this C
A keypad 12 is connected to P U 11, and
A television receiver 14 is connected via the display control section 13 . Furthermore, the CPU 11 includes a screen buffer 15 and a floppy disk drive control section (hereinafter referred to as FDDFFIIn section and N
'8) 1B, printing & 11111 parts 17 are connected. And the above FDD i! Floppy disk device used as part 6 moly by 111m1 part 16
The print controller 17 controls the printer 19 .

Further, a modem 21 is connected to the CPU 11 via a communication control section 20, and this modem 21 is connected to a line control I device (
(hereinafter abbreviated as LCU) 22 to a telephone line 23. The above LCU 22 has an LCU I/F (
interface) 24, telephone line $12
3 is switched and connected to the modem 21 side or the installation side, that is, the automatic calling device 25 side that automatically calls a telephone number. A telephone 26 is connected to this automatic calling device 25 . In addition, the 400Hz detection circuit 21 and the 2100Hz detection circuit 128 are connected to the terminal of the LCU 24 on the placement side. This 210
The output signal of the 0Hz detection circuit 28 is sent to the CPU 11 as a profile transmission command, and is also sent to the LCU
It is sent to the I/F 24 as a switching command to the modem side.

Further, the output signals of the 400H2 detection circuit 27 and the 2100HZ detection circuit 28 are sent to a registration memory 29 constituted by, for example, a RAM. A backup power supply 130 is connected to this registration memory 29 so that the stored contents are retained even when the power supply circuit 31 is turned off. The registration memory 29 also includes a time area 29a,
It is equipped with a set number area 29b1 a center number area 29C1 a screen number area 29d1 a page address area 29e, and the areas 29a to 29 (j) are written with the desired data via the CPU 11 by key operations on the keypad 12. , Also, in the page address area 29e, F
The page address for the screen stored in the DD device 18 is set to 1 by CP Ll if. That is, the FDD device 18 is stored in the registration memory 29 as shown in FIG.
Check time, set number, information center number, screen number, and page address can be stored in correspondence with each screen stored in the screen. Then, the storage contents of the center number area 29c are read out to the registration memory 29 by the detection signal of the 400Hz detection circuit 27, and
A detection signal from the 100Hz detection circuit 28 causes the stored contents of the screen number area 29d to be read out. Sent to the automatic transmission device 25 read from the center number area 29G,
The data read from the screen number area 29d is CPU1
Sent to 1. In addition, the time area 2 of the registration memory 29
Time information such as date and time, day of the week, etc. regarding on-time and off-time is set in 9a, and the stored contents are read out to the matching circuit 32. Further, time information such as the current time, date, and day of the week is inputted to the coincidence circuit 32 from the clock circuit 33. The above matching circuit 32 and clock times w! 1
Similarly to the registration memory 29, a backup power supply 30 is also connected to the memory 33. The coincidence circuit 32 compares the stored information in the time area 29a and the time information from the clock circuit 33, and the on-time coincidence signal is sent to the output line 3.
2a, and the off-time coincidence signal is output from output line 3.
Output from 2b.

The on-time coincidence signal output from the output line 32a of the coincidence circuit 32 is sent to the network number area 29 to the registration memory 29.
b is sent as a read command, and is also sent to the power supply circuit 31 as a power-on signal. Group number area 29 above
The set number read from b is sent to the automatic transmission device 25. Further, the off-time coincidence signal outputted from the output line 32b of the - number circuit 32 is sent to the power supply circuit 31 as a power-off signal, and is also sent to the LCLI I/F 24 as a -rEL side switching command.

Next, the operation of the above embodiment will be explained. First, call 9
26 to call up the information center of the captain network, and specify the desired captain screen, such as stock market conditions, a certain singer's concert schedule, etc., by key operation on the keypad 12, as shown in FIG. For example, they are stored in the FDD device 18 as screen 1, screen 2, screen 3-1, and screen 3-2. On the other hand, in each area 29a to 29d of the registration memory 29, the above FO
Data for checking and updating the captain screen stored in the D device 18 is set by operating the keys on the keypad 12. That is, in the time area 29a,
For example, time information such as date, day of the week, time, on/off distinction, etc., that is, the check time on the captain screen, the group number in the group number area 29b, such as the captain's network number, and the information center call in the center number area 29c. Number, the above FDD device is in the screen number area 29d! The screen numbers for the captain screens stored in advance in 18 are set respectively. In this case, for example, to check 10 screens, 10 sets of data are stored in each area 2 of the registration memory 29.
9a to 29d in advance. Also, when there are multiple screens for one piece of information, a screen number designation procedure is set. Further, in the page address area 29e of the registration memory 29, the addresses of the first page of each screen initially stored in the FDDI 1118 are respectively written.

Although the power supply circuit 31 is off when the terminal device is not in use, the backup power supply 30 is supplied to the registration memory 29, - number circuit 32, and clock circuit 33 even when the 2I power source is off. and maintained in working condition. - The number circuit 32 is the time area 2 of the registration memory 29.
The time information set in 9a and the current time measured by the clock circuit 33 are compared, for example, every minute. Until the coincidence signal is output from the minus number circuit 32,
The terminal device is in a standby state as shown in step A1 of the flowchart of FIG. If, for example, the on time set in the time area 29a matches the current time measured by the clock circuit 33, a match signal is output from the output line 32a of the minus number circuit 32.
The signal is sent to the power supply circuit 31. This turns on the power supply circuit 31 and supplies dynamic f\ power to each part. At this point, L
CU 22 has been switched to the placement side. Also, above-
Based on the coincidence signal output from the output line 32a of the number circuit 32, the captain network number set in the group number area 29b of the registration memory 29 is read out and sent to the automatic transmission device 25.

As a result, the screen access process shown in step A2 of FIG. 4 below is executed. In other words, automatic sending bag j! ! 2
5 automatically makes a call according to the captain's network number sent from the group number area 29b, and sends it to the telephone line 23 via the LCU 22. By sending out the above group number, the captain network sends a signal of 400H2 and an intermittent tone. This 400H2 signal tone is 40
It is detected by the 0H2 detection circuit 21, and the detection signal is sent to the registration memory 29. And this 400Hz
In response to the detection signal, the center number stored in the center number area 29c of the registration memory 29 is sequentially displayed.
It is sent to the automatic transmission device 25. Therefore, the automatic calling device 25 automatically sends a signal to the center number and calls the information center. As a result, a 2100 Hz signal is sent from the information center, and this signal is detected by the 2100H2 detection circuit 28.

The detection signal of this 2100HZ detection circuit 28 is LCLJ
It is sent to I/F24 as a modem selection command, and C
Sent as a P U 11 profile command. The LCU I/F 24 switches the LCU 22 to the modem 21 side when a detection signal from the 2100Hz detection circuit 28 is input. Further, the screen number stored in the picture number field 29d of the registration memory 29 is read out by the detection signal of the 2100HZ detection circuit 28, and the screen number stored in the picture number field 29d of the registration memory 29 is read out.
Sent to U 11. CPU 11 is 2100H
When the detection signal of the Z detection circuit 28 is input, the terminal profile is transmitted to the communication control unit 20, the modem 21, and the LCU 22.
It is sent to the information center via. As a result, a guidance screen is sent from the information center. The guidance screen sent from this information center includes LCU 22, modem 21,
The signal is input to the CPU 11 via the communication control section 20, and sent by the CPU 11 to the display control section 13, where it is displayed on the television receiver Ia 14. After that, CPU 11
sends the screen number read out from the screen number area 29d of the registration memory 29 to the information center. By sending out the screen number, the information center sends a screen corresponding to the screen number, so the CPU 11 displays the screen information on the television receiver 14, and also performs step A.
3, it is written to the screen buffer 15 as shown in FIG. Then CP
U11 is the FDD device 1 as shown in step A4.
The screen information corresponding to the above screen number is read from 8 using the page address, and the above screen buffer? For example, it is compared bit by bit with the screen information written in 15, and it is determined in step A5 whether or not they match. If the above judgment results match, that is, if the screen information on the information center side has not been updated, the process directly returns to step A1.

However, if it is determined in step A5 that they do not match, that is, if the screen information on the information center side has been updated, the process proceeds to step A6, and the address table is updated, that is, in the page address area 29e of the registration memory 29. 2, the address of the second page for cumulatively storing the updated screen in the FDD device 18 is written. Next, the process proceeds to step A7, where the screen information held in the screen buffer 15 is read out, and the FDD device 18 is updated as shown in FIG. 3 according to the update contents of the address table.
to be stored cumulatively. In Figure 3, for screen 1, screen 1'
, screen 1'' are sequentially cumulatively stored, and screen 3-1' and screen 3-2' are cumulatively stored for screen 3-1 and screen 3-2, respectively.The following is a similar example. The operation is repeated, and it is sequentially checked whether or not the screen information on the information center side has been updated at every preset time, and if it has been updated, the updated screen is sequentially cumulatively stored in the FDD device 18. In this case, , the cumulatively stored screen information may be printed out by the printer 19 each time.

As described above, as the screen information on the information center side is updated, the updated screen is sequentially cumulatively stored in the FDD device 18, so that the contents stored in the FDD device f18 are stored in the TV receiver 11.
) 114 or print it out using the printer 19, the user can check the update status of the captain screen and take the correct action. For example, if you want to know about stock market conditions, if the captain's screen is updated every day after the morning closing price and afternoon closing price, you can easily check stock price movements later. In addition, when you want to know the concert schedule of a certain singer, when the concert schedule changes, or when a new concert schedule is received, the screen information is displayed on the FDD device 1.
8. Since I have a cumulative memory, I can accurately know my schedule.

[Effects of the Invention] As detailed above, according to the present invention, in a video tex such as a captain system, desired screen information in an information center is accessed and stored in advance in a screen memory, and then periodically The information center is accessed to check whether the screen information has been updated, and if it has been updated, the screen information is cumulatively stored in the screen memory, so when the information source is updated, The update status can be known with certainty, and the correct response can be taken accordingly.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a block diagram showing a circuit configuration, FIG. 2 is a diagram showing an example of the storage configuration of the registration memory in FIG. 1, and FIG. 3 is a block diagram showing a circuit configuration. FIG. 4 is a flowchart for explaining the operation, which is a diagram showing an example of cumulative storage of screen information in the FDD device. 11...CPU, 12...Keypad, 13...
Display control unit, 14... Television receiver, 15... Screen buffer, 18... Floppy disk device @ (FDD
device), 19...Printer, 22...Line control unit (LCU), 25°°'' automatic transmitter, 29...Registration memory, 31...Power supply circuit, 32...-Several circuits ,
33...Clock circuit. Applicant's agent Patent attorney Takehiko Suzue Figure 4

Claims (1)

[Claims] A Videotex terminal device that accesses the Videotex information center via a line network to receive screen information includes a screen memory that stores arbitrary screen information read from the information center, and a screen memory that stores arbitrary screen information read from the information center, and a screen memory that stores arbitrary screen information read from the information center, and means for accessing and reading screen information; and determining means for comparing the screen information read from the information center by this means with the screen information stored in the screen memory to determine whether or not they match. and means for cumulatively recording screen information read from the information center in the screen memory when a discrepancy is detected by the determining means.