JPH03220656A - Picture information preserving and restoring device - Google Patents

Abstract

PURPOSE:To reduce a line usage charge by preserving and restoring picture information on a terminal equipment side when it is necessary to preserve and restore the picture information. CONSTITUTION:When input information 3 is received, an input information judgement part 131 compares a transmission key identifier in the input information 3 with a transmission key identifier in a picture transmission key memory area 1311 by a picture transmission key detection part 1313 and when this identifier is a picture preservation key, a picture information fetch part 132 is instructed to fetch the picture information from a display part 12. When the identifier is not the picture preservation key, the transmission key identifier in the input picture information 3 is compared with the transmission key identifier in a picture transmission key memory area 1312 by a picture restorage key detection part 1314 and when this is a picture restorage key, a picture information reader part 134 is instructed to read out the picture information from a picture information memory area 135. Thus, it is not necessary to exchange the picture information between a host computer 2 and a terminal equipment 1 and the line usage charge is reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a device for performing interactive processing between a host computer and a terminal device.

[Conventional technology]

Conventionally, when input information that a host computer receives from a terminal device is a request to save the screen information displayed on the terminal device, the host computer side judges the input information and saves the screen information to the host computer. The system sends a command instructing the terminal device to send a message to the terminal device, receives screen information as a response message, and stores it on the host computer side. Thereafter, if the input information received by the host computer from the terminal device is necessary to restore screen information, the host computer side judges the input information and transmits the screen information to the terminal device.

[Problem to be solved by the invention]

In the conventional dialogue processing system described above, when saving and restoring screen information, screen information is sent and received between the host computer and the terminal device, so data transfer takes time, response time is slow, and line The drawback was that usage fees were high.

[Means to solve the problem]

The tank bottom of the screen information storage and restoration device of the present invention is an input for determining the type of input information input from the input section of the terminal device in an interactive processing system in which a terminal device and a host computer are connected via a communication line. an information determination unit, and when the input information requests saving of screen information,
a screen information capture unit that captures screen information displayed on a display unit of the terminal device; a screen information storage area in which screen information captured by the screen information capture unit is stored; and a screen captured by the screen information capture unit. a screen information writing unit that writes information to the screen information storage area; and if the input information requests restoration of screen information, reads the screen information stored in the screen information storage area, and writes the screen information to the display unit; It is characterized by including a screen information reading unit for passing.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the screen information storage and restoration device of the present invention, which includes a terminal device 1 and a host computer 2.
, an input unit 11, a display unit 121, a screen information capture device 13, and a screen information storage and restoration device 13 included in the terminal device 1.
Input information judgment unit 1311 included in screen information capture unit 1
321 Screen information writing section 1331 Screen information reading section 13
4° screen information storage area 135. The functions of each part will be explained below.

The input information determining unit 131 analyzes the input information from the input unit 11 and, if the input information is requested to save the screen information, sends the screen information currently displayed on the display unit 12 to the screen information importing unit 132. Give instructions to import.

The screen information capture unit 132 reads the display unit 12 according to the instruction.
The screen information displayed on the screen is captured and passed to the screen information writing section 133.

The screen information writing unit 133 writes screen information into the screen information storage area 135.

Thereafter, the input information determining unit 131 analyzes the input information from the input unit 11, and if the input information requests restoration of screen information, instructs the screen information reading unit 134 to read the screen information to be restored. put out.

The screen information reading unit 134 reads screen information from the screen information storage area 135 and passes it to the display unit 12. Display section 12
displays the passed screen information.

FIG. 2 is a block diagram showing the details of one embodiment of the input information judgment unit 131 when using the human information example, and shows the input information 3, the input information judgment unit 131, and the input information judgment unit 131.
Screen save key storage area 1311. Screen restoration key storage area 1312° Screen storage key detection unit 1313. The screen restoration key detection unit 1314 issues #I warning.

Input information 3 in this example is composed of a transmission key identifier and an input character string.

A transmission key is a key or multiple types of keys that, when pressed by an operator, causes an operation to transmit input information from a terminal device to a host computer, and pressed transmission keys are distinguished by transmission key identifiers. be done.

In this example, it is determined whether or not to save or restore the screen based on the transmission key identifier of the input information 3. The transmission key that requests saving of the screen will be called the screen saving key, and the transmission key that requests the restoration of the screen will be called the screen restoring key. The transmission key identifiers of the screen save key and the screen restore key are stored in the screen save key storage area 1311 and the screen restore key storage area 1312, respectively.

Next, the operation of the input information determining section 131 shown in FIG. 2 will be explained with reference to FIG.

When the input information judgment unit 131 receives the human power information 3, the screen transmission key detection unit 1313 compares the transmission key identifier in the input information 3 with the transmission key identifier in the screen transmission key storage area 1311, If this is the screen save key, it will instruct the screen information capture unit 1.32 to capture screen information from the display unit 12, and at the same time
is sent to host l-computer 2.

If it is not a screen save key, the screen restoration key detection unit] 3] 4
, compare the transmission key identifier in the input information 3 and the transmission key identifier in the screen transmission key storage area 13]2,
If this is the screen restoration key, the screen information reading section 13
4 to read screen information from the screen information storage area 135, and simultaneously transmits input information 3 to the host computer 2.

If it is neither a screen save key nor a screen restore key, only the input information 3 is sent to the host computer 2.

〔Effect of the invention〕

As explained above, the present invention allows screen information to be exchanged between a host computer and a terminal device by saving and restoring screen information on the terminal device side when it is necessary to save and restore screen information in an interaction processing system. Since no data is sent or received, data transfer time and response time can be shortened, and line usage fees can be reduced.

[Brief explanation of drawings]

FIG. 1 is a diagram showing the configuration of one embodiment of the screen information storage and restoration device of the present invention, and FIG. 2 is a diagram showing the detailed operation of one embodiment of the input information determining section. 1...Terminal device, 2...Host computer, 3.
... input information, 11 ... input section, 12 ... display section,
13... Screen information storage and restoration device, 131... Input information judgment unit, 132... Screen information import unit, 133...
・Screen information writing section, 134...screen information reading section,
135... Screen information storage area, 1311... Screen save key storage area, 1312... Screen restoration key storage area, 1313... Screen save key detection unit, 1314...
Screen restoration key detection part.

Claims (1)

[Claims] In an interactive processing system in which a terminal device and a host computer are connected via a communication line, the input information determining section determines the type of input information input from the input section of the terminal device, and the input information is stored as screen information. , a screen information capture unit that captures the screen information displayed on the display unit of the terminal device, a screen information storage area in which the screen information captured by the screen information capture unit is stored; a screen information writing unit that writes the screen information captured by the screen information capturing unit into the screen information storage area;
If the input information requests restoration of screen information, the screen information reading section reads out the screen information stored in the screen information storage area and passes it to the display section. Preservation and restoration equipment.