JP2004280201A - Communication system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a communication system for synchronizing data file display states between communicating personal computers or pieces of terminal equipment. <P>SOLUTION: This communication system is configured to provide an arbitrary data file requested by a plurality of personal computers 2 and 3 to which a server 1 for storing and managing a data base or a text data file is communicatively connected through an arbitrary communication protocol(digital communication network 6). The personal computers 2 and 3 are provided with an application for displaying the provided data file, and a pair of personal computers which display the arbitrary same data file transmit or receive the operation information of their mutual display pictures successively or in each unit time through the server 1 to synchronize their mutual data file display states. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a plurality of terminal devices or personal computers (hereinafter referred to as personal computers) in which a host computer or a server that stores and manages a database and text data files is communicably connected by an arbitrary communication protocol. The present invention relates to a communication system capable of providing a file.
[0002]
[Prior art]
In connection with the communication system described above, for example, in a screen sharing system disclosed in Patent Document 1, when a text file is corrected on a plurality of terminals that commonly display a text file on a text server, There has been proposed a technique for once transmitting the operation contents to a synchronization server and synchronizing the operation contents with other terminal screens, thereby eliminating the occurrence of inconsistency in the display screen contents of each terminal.
[Patent Document 1] Japanese Patent Application Laid-Open No. 2001-273219
[Problems to be solved by the invention]
In a network such as the Internet, which is now widely used, a personal computer terminal requests arbitrary information from a database or a homepage on a server, and the server provides the requested display data. In such communication, the main purpose of the terminal user is to obtain specific information, and text-level information exchange means such as e-mail and chat are mainly used as communication between terminals. However, as chat and IP phones using a CGI (Common Gateway Interface) program become more widespread, advanced communication between terminals becomes possible. One of the means is to share and synchronize a display screen.
An object of the present invention is to provide a communication system capable of synchronizing a data file display state between personal computers or terminal devices communicating with each other.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 is based on a plurality of terminal devices or personal computers in which a host computer or a server that stores and manages a database and text data files is communicably connected by an arbitrary communication protocol. In a communication system capable of providing a requested arbitrary data file, a terminal device or a personal computer has an application for displaying the provided data file, and a pair of terminal devices displaying any of the same data files. Alternatively, the most important feature is a communication system in which personal computers transmit and receive operation information of each other's display screens sequentially or per unit time via a host computer or a server to synchronize their data file display states.
According to a second aspect of the present invention, in the communication system according to the first aspect, a data file including texts displayed on a display of a terminal device or a personal computer is input by a data input auxiliary device including a keyboard and a mouse, and is displayed on a screen. The graphic or text that is overwritten and displayed in any part of the data file is transmitted and received by the host computer or server via the host computer or server as data to which the location information including the coordinates and scale data related to the data file is added. In addition to synchronizing the display status, the graphics and text that are displayed over the text file are scaled according to the display position and scale of the text file as if they were additionally written on the display image of the data file. An app that can track and display placement A communication system comprising a application and main features. According to a third aspect of the present invention, in the communication system of the second aspect, graphics and text overwritten on the image of the data file displayed on the display and operation information of the display screen are filed for each input and operation sequence. It can be recorded and stored on any storage device, and can be stepped back and step forward displayed on a terminal device or a personal computer, and can be recorded as a file in each input order including operation information. The main feature is a communication system having an application that can be displayed and hidden at the time of.
[0005]
According to a fourth aspect of the present invention, there is provided the communication system according to any one of the first to third aspects, wherein the operation information of the display screen transmitted / received via the host computer or the server and the data input auxiliary device including the keyboard and the mouse are used for the screen. The graphic or text data overwritten and displayed in any of the above locations is multiplexed with other communication data in a terminal device or personal computer, and sequentially or in unit time via the host computer or server. The main feature is a communication system for transmitting and receiving between devices or personal computers.
According to a fifth aspect of the present invention, in the communication system of the fourth aspect, the terminal device or the personal computer includes a voice input / output device for performing voice input / output and a voice CODEC device. A communication system that is multiplexed with operation information and graphic and text data that is overwritten and displayed on an arbitrary portion of the screen by a data input auxiliary device including a keyboard and a mouse, and transmitted and received via a host computer or server. Characteristics.
According to a sixth aspect of the present invention, in the communication system according to any one of the first to fourth aspects, a plurality of n arbitrary terminal devices or personal computers are connected to the host computer or the server via a network. Alternatively, screen operation information transmitted / received via the server and graphic information which is overwritten and displayed at an arbitrary position on the screen by a data input auxiliary device including a keyboard and a mouse can be communicated in a pair (n-1). When a plurality of received data are simultaneously mixed into a specific terminal device or personal computer, data that cannot be transmitted simultaneously due to communication capacity by a predetermined transmission / reception control program is controlled by a host computer or a server. Storage device in host computer or server To prevent the loss of data by storing temporarily the principal features of a communication system to continue to send the sequentially stored data.
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
First, an embodiment of the invention described in claim 1 will be described.
FIG. 1 is a conceptual diagram of a communication system according to the first embodiment of the present invention. The server 1 manages a data file 4 such as a homepage in a database like a Web server, and provides a common data file 4 requested by the personal computer 2 and the personal computer 3 connected via the digital communication network 6. The personal computers 2 and 3 display the provided data file 4 as a display screen 5 (5-1, 5-2) on a display by a display application.
Here, the personal computers 2 and 3 transmit the information on the current display screen to the server 1 so that the display screen is processed by the program 7 in the server 1 into the same synchronized signal. By distributing the processed information to the personal computers 2 and 3, the personal computers 2 and 3 perform the same display on the display. Further, when the display screen operation such as scrolling and display enlargement / reduction is performed by the personal computers 2 and 3, respectively, the operation information is sequentially transmitted and received via the server 1 along the same route as described above, thereby synchronizing the display screen almost in real time. be able to.
FIG. 2 is a conceptual diagram of a communication system according to a second embodiment of the present invention. This embodiment is a conceptual diagram when implemented in a network of host computers. The data files requested by the arbitrary pair of terminal devices 9 and 10 are provided from the host computer 8 and are shown on the respective screens. The basic mechanism is the same as that of the first embodiment shown in FIG.
[0007]
Next, the second aspect of the invention will be described.
FIG. 3 is a conceptual diagram showing a screen operation example. The display screen 20 is a display screen of the personal computer 2 or the personal computer 3 before the screen operation. The data file 4 provided from the server 1 by the communication system shown in FIG. 1 is displayed in the same display state. The display screen 21 shows a state in which character information "A" is input at an arbitrary position on the data file 4 displayed on the personal computer 2 by a data input auxiliary device such as a keyboard or a mouse. The graphic information α including the size and the position information is transmitted to the personal computer 3 via the server 1 at the arrow 23 and displayed at the same position on the data file 4 as shown on the display screen 22.
Further, when this graphic information α is scrolled by the personal computer 2 as shown on the display screen 24, the scroll operation information is transmitted to the personal computer 3 via the server 1 by the arrow 26 as the screen operation information β. On the display screen of the personal computer 3, the display of the data file is scrolled in the same manner as that of the personal computer 2. At the same time, since the graphic information α has positional information, it is pasted on the data file as shown on the display screen 25. Moved as if.
Similarly, when the display of the data file is enlarged on the personal computer 2 as shown in the display screen 27, the data file is transmitted to the personal computer 3 via the server 1 at the arrow 29 and the display of the data file is enlarged. Since the graphic information α has size information, the graphic information α is enlarged as if it is pasted on the data file as in the display screen 28. Since the same data transmission is sequentially performed from the personal computer 3 to the personal computer 2, the display screens by the mutual screen operations can be synchronized.
[0008]
Next, a third aspect of the present invention will be described.
FIG. 4 is a schematic diagram showing the screen operation of FIG. 3 in the order of steps. Arrows 44, 45, 46 represent operating steps. Here, the display screen 40 shows a default state in which the data file 4 provided from the server 1 is displayed. The display screen 41 shows a screen in which character information "A" is input at an arbitrary position on the displayed data file 4 by a data input auxiliary device such as a keyboard or a mouse. And as graphic information α including position information in the storage device 48 inside the personal computer.
When screen operations are sequentially performed as shown in the display screens 42 and 43, the screen operation information β and γ are stored in the storage device 48 together with the operation order. Therefore, it is possible to return to the display state of an arbitrary operation step, and the step operation information can be synchronously displayed by transmitting the step operation information to the personal computer of the other party via the server 1. Further, the storage device 48 may be installed in the server 1 and distribute an operation signal each time a request from the personal computer is made.
Next, the invention according to claim 4 will be described.
FIG. 5 is a diagram showing a first example of a model of transmission data by the communication system of the present invention. Arrow 50 indicates the flow of normal transmission information, and arrow 51 indicates the flow of graphic information and screen operation information of the present invention. The screen operation information 54 represents the information amount of one step of the screen operation. Since the screen operation information 54 is not transmitted at the same time while the large-capacity data 53 transmitted in a number of packets is being transmitted, a time lag occurs in the screen synchronization of the personal computer of the other party.
FIG. 6 is a diagram showing a second example of a model of transmission data by the communication system of the present invention. Since the normal transmission information 52 is multiplexed with the screen operation information 54 by the data multiplexing unit 56 provided inside the personal computer, the screen operation information 54 can be transmitted without interruption even when a large amount of normal transmission data is transmitted. Can be. In addition, since reception is also possible, a time lag hardly occurs in screen synchronization display between personal computers.
[0009]
Next, the invention according to claim 5 will be described.
FIG. 7 is a configuration diagram of a personal computer. Since the personal computer 60 (corresponding to the personal computers 2 and 3 in FIG. 1) is provided with the audio codec unit 62, the audio input from the microphone 63 is digitally coded and can be processed by the arithmetic processing unit 61 and transmitted. Similarly, the digitally encoded audio information can be converted to audio and reproduced from the speaker 64.
FIG. 8 is a diagram showing a third example of a model of transmission data by the communication system of the present invention. Arrow 57 represents the flow of digitally encoded audio information. The voice information 58 is multiplexed and transmitted together with the normal communication information 52 and the screen operation information 54 by the data multiplexing unit 57 provided inside the personal computer, so that the voice information 58 can be transmitted without interruption. Reception is also possible.
Next, the invention according to claim 6 will be described.
FIG. 9 is a conceptual diagram of a communication system according to the third embodiment of the present invention. In a communication system, n personal computer systems are installed on a network and connected to a common server 70. The server 70 performs communication control processing so that an arbitrary personal computer system 74 can always perform one-to-one (n-1) communication exchange for communicating with a plurality of (n-1) communication partners.
Here, when data from a plurality of partners is mixed into an arbitrary personal computer system 74, the server 70 stores communication data that cannot be transmitted at the same time in a temporary storage device 71 and transmits the data according to a priority set in advance by the arithmetic processing unit 72. By setting a program that determines the order or a fixed transmission time and processes transmission data from a plurality of personal computer systems in parallel, data loss due to crosstalk can be prevented and stable communication can be performed. Here, the communication data exchanged between the personal computers is the information according to the first to fifth aspects of the present invention, and the display screens of the n units can be synchronously processed.
[0010]
【The invention's effect】
In the communication system according to the first aspect, the operation information of each display screen is transmitted and received between the communicating personal computers or the terminal devices sequentially or per unit time via the host computer or the server, so that mutual data is transmitted. File display status can be synchronized.
In the communication system according to the second aspect, on a display of a data file such as a sentence or a drawing previously displayed on a screen, characters and graphic information input by a data input assisting device such as a keyboard and a mouse are arranged and scaled. Since it is recorded and transmitted as data including, even if you perform screen scrolling operation or display enlargement / reduction operation, it follows, as if it is stuck on the data file, moves, enlarges and reduces, and adjusts the arrangement and scale. Can be displayed.
In the communication system according to the third aspect, graphic information and screen operation information input by a data input auxiliary device such as a keyboard and a mouse are sequentially stored in an arbitrary position on the displayed data file in the storage device together with the operation order. Therefore, it is possible to return to the display state of an arbitrary operation step, and an operation useful for communication and utilization of information, such as selection of display / non-display, can be performed.
In the communication system according to the fourth aspect, graphic information and screen operation information are transmitted and received in a state where they are multiplexed with other communication data, so that the display screen can be displayed with almost no time lag even when a large amount of data is totally received. Can be synchronized.
In the communication system according to the fifth aspect, since a voice input / output device for inputting and outputting voice to the personal computer system and a voice CODEC device are provided, real-time voice communication can be performed in synchronization with the synchronization of the display screens according to the first to fourth aspects. . Since voice information is multiplexed with graphic information, screen operation information, and other communication data and transmitted / received, voice communication can be performed with almost no time lag even when a large amount of data is received.
In the communication system according to the sixth aspect, n personal computer systems connected via a network exchange graphic information, screen operation information, and audio information via a common server, so that a plurality of personal computers can communicate with each other. The server is provided with a program that determines transmission order based on a preset priority or determines a fixed transmission time and processes transmission data from a plurality of personal computer systems in parallel. Therefore, loss of data due to crosstalk can be prevented and stable communication can be performed.
[Brief description of the drawings]
FIG. 1 is a conceptual diagram of a communication system according to a first embodiment of the present invention.
FIG. 2 is a conceptual diagram of a communication system according to a second embodiment of the present invention.
FIG. 3 is a conceptual diagram illustrating a screen operation example.
FIG. 4 is a schematic view showing the screen operation of FIG. 3 in the order of steps.
FIG. 5 is a diagram showing a first example of a model of transmission data by the communication system of the present invention.
FIG. 6 is a diagram showing a second example of a model of transmission data by the communication system of the present invention.
FIG. 7 is a configuration diagram of a personal computer.
FIG. 8 is a diagram showing a third example of a model of transmission data by the communication system of the present invention.
FIG. 9 is a conceptual diagram of a communication system according to a third embodiment of the present invention.
[Explanation of symbols]
1 server, 2 or 3 personal computer, 6 digital communication network, 8 host computer, 9, 10 terminal device

Claims (6)

In a communication system in which a host computer or a server that stores and manages a database or a text data file can provide any data file requested by a plurality of terminal devices or personal computers communicably connected by an arbitrary communication protocol. The terminal device or the personal computer has an application for displaying the provided data file, and a pair of terminal devices or personal computers displaying any one of the same data files sequentially or sequentially operate the operation information on the display screen of each other. A communication system wherein data file display states are synchronized by transmitting and receiving data via a host computer or a server every unit time. 2. The communication system according to claim 1, wherein a data file including texts displayed on a display of the terminal device or the personal computer is input by a data input auxiliary device including a keyboard and a mouse, and is overwritten and displayed at an arbitrary position on a screen. The graphics and text to be transmitted and received to and from the other party via the host computer or the server as data to which the location information including the coordinates and the scale data related to the data file are added, thereby synchronizing the data file display states with each other. Graphics and text that are overlaid on the text file follow the scale and arrangement of the text file according to the display position and scale of the text file, as if they were additionally entered on the display image of the data file. Applications that can Communication system characterized in that there was e. 3. The communication system according to claim 2, wherein graphics and text overwritten on the image of the data file displayed on the display and operation information of the display screen are recorded as a file for each input and operation sequence on an arbitrary storage device. It is stored and can be stepped back and stepped forward on the display by a terminal device or a personal computer, and can be recorded as a file in the input order including operation information, and can be displayed or hidden at any time. A communication system comprising a possible application. 4. The communication system according to claim 1, wherein operation information on a display screen transmitted / received via a host computer or a server and a data input auxiliary device including a keyboard and a mouse overwrite an arbitrary portion on the screen. Graphic or text data to be multiplexed together with other communication data in a terminal device or personal computer, and transmitted or received between any terminal device or personal computer via a host computer or server sequentially or per unit time A communication system, comprising: 5. The communication system according to claim 4, wherein the terminal device or the personal computer includes a voice input / output device for performing voice input / output and a voice CODEC device. A communication system characterized in that the data is multiplexed with graphic or text data that is overwritten and displayed at an arbitrary position on a screen by a data input assisting device, and transmitted / received via a host computer or a server. In the communication system according to any one of claims 1 to 4, a plurality of n arbitrary terminal devices or personal computers are connected to the host computer or server via a network, and are transmitted / received via the host computer or server. The host computer or server controls the screen operation information and the graphic information which is overwritten and displayed at an arbitrary position on the screen by the data input auxiliary device including the keyboard and the mouse so that one-to-one (n-1) communication is possible. When a plurality of reception data are simultaneously mixed into a specific terminal device or personal computer, data that cannot be transmitted simultaneously due to communication capacity by a predetermined transmission / reception control program is stored in a storage device in a host computer or a server. Temporary storage Communication system to prevent the loss of data, characterized in that continue to transmit the sequential storage data.

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