JPH0773206A - Portable information display device - Google Patents

Abstract

PURPOSE:To obtain a convenient portable information display device to be used for reading the data of a host computer at a remote place or in a traveling object. CONSTITUTION:A portable information display device 1 has a data collection virtual terminal 6 operating on a host computer 5 and transmitting the output data or the difference data of the host computer 5 to be executed on the host computer to a device main body, a storage part 3 preserving the obtained data, a display part 9 restoring and displaying output data and an operation part 8 performing the inputs which are necessary for the operations. Thus, by the constitution which is simpler as compared with the host computer 5, the display in the same form as the form when the data of the host computer 5 is displayed on them becomes possible. Portability and operability are improved, and the reading of the data of the host computer 5 in a traveling object where working space is constrained becomes possible. The output data is read from the host computer 5 at high speed and the retrieval of an output record becomes possible to be performed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simple portable information display device used for browsing data on a host computer in a remote place or a moving body.

[0002]

2. Description of the Related Art Since personal computers, workstations, etc. have become smaller and lighter and can be easily carried, they are used not only in moving destinations but also in moving bodies such as airplanes, bullet trains, automobiles and the like. Opportunities are increasing. Although functionally simple, electronic notebook computers that are small and lightweight and can be used anywhere are also popular. Also, various wireless mobile terminals have been developed.

[0003]

A portable personal computer or workstation is still large and inconvenient to operate in a mobile body. There are few opportunities to use the mobile because it is restricted by the work space and the number of possible operations is limited. On the other hand, the electronic notebook computer is small and easy to handle in a moving body, but it cannot display the image data of the host computer. Further, the wireless terminal device is still insufficient in widespread use of the wireless network required for data transfer.

In view of such circumstances, it is an object of the present invention to provide a simple portable information display device which is used to browse data of a host computer in a remote place or a moving body and retrieve a record.

[0005]

In order to achieve the above object, the present invention provides a data collection virtual terminal for transmitting output data of a host computer or difference data thereof on the host computer and communicates with the data collection virtual terminal. The communication control unit, the storage unit for storing the obtained data, the display unit for restoring and displaying the output data, and the operation unit for inputting necessary for their operation are characterized.

[0006]

According to the present invention, with the above-described structure, it is possible to display the data of the host computer in the same form as that displayed on the host computer with a simpler structure than that of the host computer. Further, it becomes possible to browse the output data faster than the host computer and to search the output record.

[0007]

1 is a block diagram showing the main part of an embodiment of the present invention. In FIG. 1, reference numeral 1 denotes the entire portable information display device. 2 is a communication control unit, 3 is a storage unit, 4 is a connection cable, 5 is a host computer, 6 is a data collection virtual terminal, 7 is transfer data, 8 is an operation unit, 9 is a display unit, and 10 is a system bus. .

FIG. 2 shows the data structure transferred in this embodiment. In FIG. 2, 21 is an input event,
22 is output data and 23 is difference data. FIG. 3 is a flow chart showing the flow up to information display in one embodiment of the present invention, and the operation of FIGS. 1 and 2 will be described below with reference to FIG.

The device 1 is connected to the host computer 5 by the connection cable 4.

S2: The communication control unit 2 sends the execution file of the data collection virtual terminal 6 from the storage unit 3 to the host computer 5
Transfer to and start.

S3 ... Each time the data collection virtual terminal 6 generates an input event 21, the output data 22 that is being output or the difference data 23 that is the difference between the output data before and after the occurrence of the input event 21 is output. , Transfer data 7 is transmitted to the communication control unit 2.

S4: The communication control unit 2 receives the transfer data 7 and stores it in the storage unit 3.

S5: The connection cable 4 is taken and the apparatus 1 and the host computer 5 are separated.

S6 ... In response to the operation of the operation unit 8, the display unit 9
From the transfer data 7 stored in the storage unit 3 to the output data 22
Restore and display.

Although the type of output data is not particularly shown in this embodiment, the output data itself is used in the case of character output, and the difference data is used as the transfer data in the case of image output. Then, the operating speed of this device can be increased. Furthermore, in the case of image output,
It is more effective to use the drawing protocol than to use the image itself as the output data. Also,
Even when the difference data is used, if the output data are mixed at regular intervals, it is possible to shorten the time required to restore the output data at an arbitrary time during the search. In the present embodiment, the cable is used to connect the apparatus and the host computer, but wireless may be used or the apparatus may be used as it is as an apparatus for recording an output.

[0016]

As described above, in the portable information display device of the present invention, the data collection virtual terminal for transmitting the output data of the host computer or the difference data thereof is provided on the host computer and communicates with the data collection virtual terminal. Created by a host computer such as a personal computer or a workstation, which has a communication control unit, a storage unit that stores the obtained data, a display unit that restores and displays the output data, and an operation unit that inputs necessary for these operations. The displayed data can be displayed in exactly the same manner as when they are displayed on them, and the output data can be browsed and the output record can be searched at a higher speed than the host computer.

[Brief description of drawings]

FIG. 1 is a block diagram showing a main part of an embodiment of the present invention.

FIG. 2 is a diagram showing a data structure according to an embodiment of the present invention.

FIG. 3 is a flowchart showing a flow of operations of the embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Portable information display device, 2 ... Communication control part, 3 ... Storage part, 4 ... Connection cable, 5 ... Host computer,
6 ... Data collection virtual terminal, 7 ... Transfer data, 8 ... Operation part, 9 ... Display part, 10 ... System bus, 21 ... Input event, 22 ... Output data, 23 ... Difference data.

Claims (1)

[Claims] 1. A data collection virtual terminal for transmitting output data of a host computer or difference data thereof is provided on the host computer, a communication control section for communicating with the data collection virtual terminal, a storage section for storing the obtained data, A portable information display device, comprising: a display unit that restores and displays output data; and an operation unit that makes an input necessary for the operation thereof.