JP2001229006A - Multi-input monitor and controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a monitor device having plural input interfaces capable of controlling the window display of input display data, and performing communication between connected PCs. SOLUTION: This monitor device 1 is provided with a control means for window-displaying the display screen of a second PC 3 on the display screen of a first PC 2 in connecting the first PC 2 to the second PC 3, and a monitor interface is provided with a communication signal with the PC, and the monitor device 1 is provided with a communication control means. Thus the transfer of a file between the first PC 2 and the second PC 3 can be performed in the screens.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device,
In particular, it relates to a monitor device connected to a PC, a WS, and the like.

[0002]

2. Description of the Related Art A conventional display device has one interface for receiving display data from a PC, such as a multi-scan monitor "DC1552" manufactured by Hitachi, and performs display according to display data transmitted through the interface. Do.

[0003]

However, in the prior art, there is only one interface for display data, and one monitor is connected to one PC. However, the connection of a plurality of PCs is not considered, and the switching is performed by an external switcher or the like.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. As an embodiment, a flat panel display such as a liquid crystal display, a display unit such as a CRT, and the like are provided. A first interface including a communication interface between the PC and a PC, a second interface including a similar interface, and display data input from the second interface on display data input from the first interface. Means for displaying, and communication means for causing the PC (first PC) connected to the first interface to recognize the PC (second PC) connected to the second interface and to perform communication A communication device for communicating window display information from the first PC and resolution information from the second PC. First, characterized in that it comprises a
And a communication means for communicating resolution information from the second PC.

The operation will be described.

Conventionally, only one PC can be connected,
Since two devices can be connected and have an interface for communication between the PCs, communication between the PCs such as file exchange can be performed on the superimposed display screen.

[0007]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 shows an example of use of a monitor device according to an embodiment of the present invention.

In FIG. 1, 1 is a monitor device, and 2 is a first device.
The PC 3, 3 is a second PC, 4 is a keyboard, 5 is a mouse, the monitor device 1 has two display data inputs, and can connect two PCs, the first PC 2 and the second PC 3. The display is a window display of the second PC 3 on the screen of the first PC 2. The keyboard 4 and the mouse 5 are connected to the first PC 2 to control the first PC 2 and
3 can also be controlled.

FIG. 2 is a display example of the screen of the monitor device 1 shown in FIG.

In FIG. 2, 6 is the display screen of the first PC 2, 7 is the display screen of the second PC 3, 8 is the vertical coordinate of the upper left corner of the window display, 9 is the vertical size of the window display, and 10 is the upper left corner of the window display. Horizontal coordinates of the edge,
11 is a horizontal size of the window display, 12 is a mouse cursor, and the first PC display screen 6 is
The second PC display screen 7, which will be described below as having a resolution of 024 × 768 dots, is initially the display resolution of the second PC, and is described here as having a resolution of 640 × 480 dots. Therefore, the horizontal size 11 and the vertical size 9 of the window display are initially 640, respectively.
480. When the window position is changed by the mouse cursor 12, the vertical coordinate 8 and the horizontal coordinate 10 at the upper left corner of the window are changed, and the position of the second PC display screen 7 is changed. If the window size is changed, the vertical size of the window display 9,
The horizontal size 11 is changed, and the second PC display screen 7 is changed.
Will be displayed accordingly. When a file or the like is moved or copied, the file is moved on the screen by the mouse cursor 12 so that the first PC 2 is moved to the second PC 3.
Or from the second PC 3 to the first PC 2.

FIG. 3 is a block diagram of a monitor device according to one embodiment of the present invention.

In FIG. 3, reference numeral 13 denotes a first PC connector for connecting a monitor of the first PC, 14 denotes first display data which is display data of the first PC, and 15 denotes first communication data which is communication data of the first PC. 1 communication data, 16 is a second PC connector for monitor connection of a second PC, 17 is second display data which is display data of the second PC, 18 is second communication data which is communication data of the second PC , 19 is a first monitor connector for connecting a monitor of the liquid crystal monitor, and 20 is a second monitor connector having the same interface as 19.
The PC 2 and the second PC 3 have a first PC connector 13 and a second PC connector 16 for monitor connection, which are similar interfaces. The first PC connector 13 and the first monitor connector 19 are connected to the first display data 14 and the first communication data 1.
5, the second PC connector 16 and the second monitor connector 2
0 has both the second display data 17 and the second communication data 18. First display data 14, second display data 17
Is display data for color display. Here,
Each color 8 sent by low voltage differential signal (LVDS) method
This will be described below as bit color data. The first communication data 15 and the second communication data 18 are data for exchanging information from a PC and information of input means such as a keyboard and a mouse, and here, a USB (Universal).
This will be described below as serial communication called “rsal Serial Bus”.

FIG. 4 shows an embodiment of the internal configuration of the liquid crystal monitor device 1.

In FIG. 4, reference numeral 21 denotes communication control means;
Is a second resolution signal, 23 is a display position designation signal, 24 is display control means, 25 is liquid crystal display data, 26 is a liquid crystal display, and the communication means 21 is a first PC 2 and a second P
The exchange of the file with C3 is the first communication data 1
5. Size (resolution) of processing to be performed via the second communication data 18 and position information of a window at the time of superimposed display via the first communication data 15 and superimposing the display of the second PC 3 The second resolution signal 22 indicating
Then, a display position signal 23 indicating a position to be superimposed is output to the display control means 24. Here, the position information and resolution information of the window sent from the first PC 2 are coordinate information on the upper left of the window, the number of vertical lines and the number of horizontal dots, each of which is serial data. The display position signal 23 is a 1-bit signal which is “0” when displaying the screen of the first PC 2 and “1” when displaying the screen of the second PC 3. The resolution signal 22 is the number of dots in the horizontal direction. Is described below as a signal representing 10 bits and the number of dots in the vertical direction is represented by 10 bits. Further, in the present embodiment, in order to enable the mouse connected to the first PC 2 also on the superimposed display screen of the second PC 3, the mouse information is received via the first communication data 15 and the second communication data is received. 18 via the second PC3
Output to The display control means 24 performs processing so that the display data 17 of the second PC 3 is superimposed on the display data 14 of the first PC 2 in accordance with the display position signal 23, and outputs it as liquid crystal display data 25. When the size of the window for superimposed display is changed using a mouse or the like, resolution information is transmitted via the second resolution signal 22 and the display control unit 24 performs resolution conversion. The liquid crystal display 26 performs display according to the liquid crystal display data 25.
Here, the resolution of the liquid crystal display 26 is 1024 ×
768 dots, and the interface will be described below as an LVDS signal similar to the first PC2 and the second PC3.

FIG. 5 is a diagram showing an embodiment of the internal configuration of the display control means 24.

In FIG. 5, reference numeral 27 denotes first data conversion means, 28 denotes second data conversion means, 29 denotes first parallel data, 30 denotes first synchronization signals, 31 denotes second parallel data, and 32 denotes resolution / frequency conversion. Means, 33 is window display parallel data, 34 is data switching means, 35
Is superimposed display data, 36 is liquid crystal data conversion means, and the first data conversion means 27 converts the first display data 14, which is an LVDS signal, into R (red), G (green), and B (blue) display data. The signal is converted into a vertical synchronizing signal, a horizontal synchronizing signal, a display valid period signal, and dot clock parallel data.
The vertical synchronization signal, the horizontal synchronization signal, and the dot clock are output as parallel data 29 to the resolution / frequency conversion means 32 as the first synchronization signal 30. The second data conversion means 28 is a first data conversion means 2
7, the second display data 17 which is an LVDS signal.
Is converted into parallel data, and the second parallel data 31
Output as The resolution / frequency conversion means 32
The resolution of the parallel data 31 is converted in accordance with the resolution signal 22, the frequency is converted in accordance with the first synchronization signal 30 so that the frequency becomes the same as the frequency of the first parallel data 30, and the converted data is output as window display parallel data 33. Here, the first parallel data 29, the second parallel data 3
1 is described below as 8-bit data for each color of RGB (display of 16.7 million colors). The data switching means 34 switches between the first parallel data 29 and the second parallel data 31 according to the display position signal 23 so as to output the second parallel data 31 at the position of the superimposed display, and outputs the same as the superimposed display data 35. . Here, when the display position signal 23 is “0”, the first parallel data 29 is
The following description is based on the assumption that the second parallel data 31 is output when it is "1". The liquid crystal data conversion means 36 has RGB
The superimposed display data 35, which is parallel data of 8 bits for each color, is converted into an input signal of the liquid crystal display 26 and output as the liquid crystal display data 25.

FIG. 6 is a diagram showing an embodiment of the internal structure of the resolution / frequency conversion means 32 shown in FIG.

In FIG. 6, reference numeral 37 denotes a resolution conversion means;
Reference numeral 8 denotes a synchronization signal after resolution conversion, 39 denotes display data after resolution conversion, 40 denotes a write control unit, 41 denotes a write control signal, 42 denotes a read control unit, 43 denotes a read control signal, and 44 denotes a window screen storage unit. The conversion means 37 converts the second parallel data 31 into the resolution signal 2
Resolution conversion is performed in accordance with the resolution indicated by 2 and output as a resolution converted synchronization signal 38 and resolution converted display data 39. The write control means 40 converts the resolution-converted synchronization signal 38 from the resolution-converted vertical synchronization signal, horizontal synchronization signal, and dot clock,
Is generated in the window screen storage means 44 to generate a write control signal 41 which is a timing signal. The read control means 42 is provided with a second
In order to display the data on the display screen of the PC 3 on the screen of the first PC 2, the first synchronization signal 30, which is a synchronization signal of the first parallel data 29, and the display position signal 23 are used to match the window display position. Screen storage means 4
4 to generate a read control signal 43 for reading data. The window screen storage means 44 stores the resolution-converted display data 39 for one screen in accordance with the write control signal 41 and reads out the display data 39 in accordance with the read control signal 43.
Output as window display parallel data 33.

FIG. 7 is a diagram showing an embodiment of the internal configuration of the communication control means 21 shown in FIG.

In FIG. 7, reference numeral 45 denotes monitor-first PC communication data which is communication data from the monitor device 1 to the first PC 2 of the bidirectional first communication data 15;
The first PC which is communication data from C2 to the monitor device 1
The monitor communication data 47 is the bidirectional second communication data 18
Among them, monitor-second PC communication data which is communication data from the monitor device 1 to the second PC 3; 48 is second PC-monitor communication data which is communication data from the second PC 3 to the monitor device 1; 49 is communication data discriminating means; 50 is communication data transfer destination information, 51 is first communication data control means, 52
Is the window position information, 55 is the second communication data control means, 56 is the window resolution information, 57 is the monitor device configuration information section, 58 is the monitor device configuration information, 59 is the window information generating means, and monitor-first PC Communication data 45, first PC-monitor communication data 46, monitor-second PC communication data 47,
The second PC-monitor communication data 48 merely indicates the direction of communication, and is actually one first communication data 15 and one second communication data 18, respectively. Data direction is first
A distinction is made depending on the data transfer direction and the data transfer destination (or transfer source) added to the communication data 15. For example, to the communication data (mouse information or keyboard information) to be transferred to the second PC 3, information indicating that the data is communication data from the first PC 2 to the second PC 3 is added. Information indicating that the data is communication data from the first PC 2 to the monitor device 1 is added to the (position information). Details will be described later. The communication data discriminating means 49 generates communication data transfer destination information 50 indicating a data transfer destination from the data transfer destination information added to the first PC-monitor communication data 46, and controls the transfer destination. Means 51, output to the second communication data control means 55. Here, the communication data transfer destination information 50 includes, as transfer destinations, the first PC2 to the second PC3, the first PC2 to the monitor device 1, and the second PC.
3 to the first PC 2. When the first communication data transfer destination information 50 indicates the first PC 2 to the second PC 3, the first communication data control unit 51 outputs the monitor-second PC communication data 47 to the second PC 3 and outputs the first communication data transfer destination information 50. When the first PC 2 indicates the monitor device 1, the window information generating means 5
9 is output as window position information 52. The monitor device configuration information section 57 causes the first PC 2 to recognize the monitor device 1 as a transfer destination of communication data, has information for performing data transfer in an appropriate format, and outputs monitor device configuration information 58. . Details will be described later. The second communication data control means 55 outputs the monitor device configuration information 58 as the monitor-first PC communication data 45 when the power is turned on or when the PC is started up at the time of connection to a PC, and the first communication data transfer destination information. When 50 indicates the first PC2 from the second PC3, the monitor-first PC communication data 45 is output to the first PC2, and when the second communication data transfer destination information 54 indicates the monitor device 1, the window resolution information is sent to the window information generating means 59. Output as 56. The window information generation unit 59 obtains the second resolution signal 22 and the display position signal 2 from the window position information 52 and the window resolution information 56.
3 is generated.

FIG. 8 is a diagram showing an embodiment of the internal configuration of the first PC 2 shown in FIG.

In FIG. 8, reference numeral 60 denotes a first central control unit;
1 is a first storage unit, 62 is a first central control unit bus output, 63
Is a first central control unit bus input, 64 is a first storage unit bus output, 65 is a first storage unit bus input, 66 is a first keyboard information first bus output, 67 is a first mouse information first bus output, 68 Is the first bus, 69 is the first bus output, 70 is the first bus
The bus input 71 is a first PC communication control unit, and the first central control unit 60 is a part that controls all the operations of the first PC 2. Here, an operation of displaying the display of the second PC 3 in a window, the first PC 2 Exchange of files between the first PC 2 and the second PC 3, a keyboard 4 connected to the first PC 2,
Only the operation of enabling the mouse 5 on the second PC 3 will be described. The bus is a bus in a conventional PC such as ISA or PCI. First, when the power is turned on or when starting up when connection of peripheral devices is confirmed, the first PC
The control unit 71 confirms a communication partner from configuration information of a peripheral device requiring communication. Then, a period for performing communication with each peripheral device is scheduled within a certain period, and all communication commands are controlled here.

Here, the information to be scheduled is keyboard information, mouse information, file movement information, and window display information. Details will be described later. The operation after scheduling will be described. When displaying the display of the second PC 3 in a window, the first PC communication control unit 71
In accordance with the scheduling at the time of startup, information on the size and display position of the window display is requested to the first central control unit 60 via the first bus input 70. First central control unit 6
0 outputs the window display information indicating the size and display position of the display of the second PC 3 in the window when the window is displayed via the first central control unit bus output 62. The initial value of the size may be set arbitrarily, or may be set from resolution information transferred from the second PC 3 via the monitor-first PC communication data 45. The first PC communication control unit 71 outputs window display information in a predetermined communication data format via the first PC-monitor communication data 46 according to the scheduling at the time of startup. Details will be described later.

When a file is exchanged between the first PC 2 and the second PC 3, the first central control unit 60
When the user wants to copy or move the file on the first PC 2 to the second PC 3,
File read instruction to first storage unit 61, second PC3
The first central control unit bus output 62, the first bus 68,
The data is transferred to the first PC communication control unit 71 via the first bus output 69. The first PC communication control unit 71 uses the idle time of the scheduling at the time of startup to input a file read request and a file name to the first bus input 70 and the first bus 6.
8. The first storage unit 61 via the first storage unit input bus 65
Then, a file write request, a file name, and data read from the first storage unit 61 are output in a predetermined communication data format via the first PC-monitor communication data 46. Details will be described later. When the user wants to copy or move the file of the second PC 3 to the first PC 2, a request to write the file to the first storage unit 61 and the second
A file read request to the PC 3 and file movement information such as a file name are transmitted to the first central control unit bus output and the first bus 6.
8. Transfer to the first PC communication control unit 71 via the first bus output. The first PC communication control unit 71 outputs a file read request and a file name in a predetermined communication data format via the first PC-monitor communication data 46 using the idle time of the scheduling at the time of startup, and A write request, a file name, and file data from the second PC 3 are transferred to the first bus input 70 and the first bus 6.
8. The first storage unit 61 via the first storage unit input bus 65
Output as bus data to File data from the second PC 3 is received via the monitor-first PC communication data 45. Details will be described later. When the keyboard 4 and the mouse 5 connected to the first PC 2 are also enabled in the second PC 3, the first PC communication control unit 71 sends the keyboard information and the mouse information via the first bus input 70 in accordance with the startup scheduling. Request to the first central control unit 60. The first central control unit 60 outputs the first keyboard information first bus output 66 and the first mouse information first bus output 67,
The data is transferred to the first PC communication control unit 71 via the first central control unit bus output 62, the first bus 68, and the first bus output 69. The first PC communication control unit 71 outputs the keyboard information and the mouse information in a predetermined communication data format via the first PC-monitor communication data 46 according to the scheduling at the time of startup. Details will be described later.

FIG. 9 shows the first PC communication control unit 7 shown in FIG.
FIG. 2 is a diagram showing an example of an internal configuration of the first embodiment.

In FIG. 9, reference numeral 72 denotes first PC receiving means,
73 is the external configuration information, 74 is the first PC
Information, 75 is a first PC configuration information section,
76 is first PC configuration information, 77 is schedule control means, 78 is communication data schedule information, 79 is first bus data generation means, 80 is first communication data generation means, 81 is first PC peripheral device transmission data, 8
Reference numeral 2 denotes first PC peripheral device reception data, and the first PC reception means 72 determines whether the information is for the first PC or configuration information based on the identifier added to the monitor-first PC communication data 45. If the configuration information of the monitor device 1 or the second PC 3 is transferred at the time of startup, the external configuration information 7
3 is output to the schedule control unit 75 and the second PC 3
If it is information for the first PC such as file data of
The information is output to the first communication data generating means 80 as PC information 74.

First PC configuration information section 75
Has information for performing data transfer of data to be communicated by the first communication data generating means 81 in an appropriate format, and outputs the data as first PC configuration information 76. Here, the first PC configuration information 76 includes the keyboard information, the mouse information, and the first storage unit 6.
The following description will be made assuming that the file information is information for communicating the file data of the first PC and the window display information of the second PC 3.
The schedule control means 77 checks all information to be communicated from the external configuration information 74 and the first PC configuration information 76, schedules which information is to be communicated and when to communicate within a certain period, and sets input data schedule information. 78, and output as output data schedule information 79. For example, information that requires constant communication, such as keyboard information and mouse information,
Schedule so that communication is always performed within a certain period. On the other hand, when communication is required only at that time as in the case of file movement information, scheduling is performed in a free time after scheduling keyboard information and mouse information. The first communication data generating means 80, if necessary, outputs the first PC according to the communication data schedule information 78.
Using the information 74, a request is made to transfer data to each peripheral device in a predetermined communication data format. Here, the request for the keyboard information and the mouse information is in the first P
C-peripheral device transmission data 81 is always output at a constant period, and window display information is always output as first PC-monitor communication data 46 at a constant period. Only when a file move request is input via the first bus output 69, the file move information is transmitted to the first PC 2 as the first PC peripheral device transmission data 81 as the mouse information, keyboard information, and window display information. A request to the second PC 3 is output as the first PC-monitor communication data 46 in the idle time excluding the communication periods of the mouse information, the keyboard information, and the window display information. The file data is generated from the first PC information 74 and output. The first bus data generation means 79
The first PC peripheral device transmission data 81 is converted into bus data, output as a first bus input 70, and a signal confirming reception is transmitted to the first PC peripheral device reception data 8
Output as 2.

According to the USB specification, the reception confirmation signal is a signal returned from the data transfer destination device.
Since the data transfer destination is not a USB device, the first bus data generation unit 79 that receives the USB data returns the data.

FIG. 10 is a diagram showing an embodiment of the internal configuration of the second PC 3 shown in FIG.

In FIG. 10, reference numeral 83 denotes a second central control unit;
84 is the second central control unit bus output, 85 is the second central control unit bus input, 86 is the second storage unit, 87 is the second storage unit bus output, 88 is the second storage unit bus input, and 89 is the second bus , 90
Is the second bus output, 91 is the second bus input, 92 is the second PC
The second central control unit 83 is a communication control unit.
Is a part that controls all of the operations of the first PC 2, but here, the operation of displaying the display of the second PC 3 in a window
File exchange between the first PC 2 and the second PC 3
Only the operation of validating the keyboard 4 and the mouse 5 connected to the second PC 3 will be described. The bus is a bus in a conventional PC such as ISA or PCI. First, at startup such as when power is turned on or when connection of a peripheral device is confirmed, the second PC communication control unit 92 outputs configuration information for causing the first PC 2 to recognize a peripheral device requiring communication. . Here, the second
Information for communicating the file data of the storage unit 86, the display data of the second PC 3, and the keyboard and mouse information from the first PC 2 is output. Details will be described later. When a window is displayed on the display of the second PC 3, display resolution information of the second PC 3 is requested via the monitor-second PC communication data 47. The second PC communication control unit 92
The request is converted into bus data and output to the second central control unit 83 via the second bus input 91, the second bus 89, and the second central control unit bus input 85. The second central control unit 83 outputs the display resolution information to the second PC communication control unit 92 via the second central control unit bus output 84, the second bus 89, and the second bus output 84. The second PC communication control unit 92 outputs the display resolution information via the second PC-monitor communication data 48, receives the request, and outputs a confirmation signal that the corresponding data has been transferred. Details will be described later. When a file is exchanged between the first PC 2 and the second PC 3, the file of the first PC 2 is transferred to the second PC 2.
If you want to copy or move to monitor 3, monitor-2nd PC
A write request to the second storage unit 86, a file name, and file data are input via the communication data 47. 2nd P
The C communication control unit 92 converts the input into bus data,
It outputs to the second storage unit 86 via the second bus input 91, the second bus 89, and the second storage unit bus input 88, and also outputs a confirmation signal that data has been received. 2nd PC
To copy or move the file No. 3 to the first PC 2, a read request to the second storage unit 86 and a file name are input via the monitor-second PC communication data 47.
The second PC communication control unit 92 converts the input into bus data and outputs the data to the second storage unit 86 via the second bus input 91, the second bus 89, and the second central control unit bus input 85.
The second storage unit 86 outputs the file data according to the file name to the second PC communication control unit 92 via the second storage unit bus output 87, the second bus 89, and the second bus output 84. The second PC communication control unit 92 outputs the file data via the second PC-monitor communication data 48, receives the request, and outputs a confirmation signal indicating that the corresponding data has been transferred. Details will be described later. 1st PC2
When the keyboard 4 and the mouse 5 connected to the second PC 3 are also enabled in the second PC 3, the monitor-second PC communication data 4
Keyboard information and mouse information are input via the keypad 7.
The second PC communication control unit 92 converts the input to bus data, and outputs the data to the second central control unit 83 via the second bus input 91, the second bus 89, and the second central control unit bus input 85. Also, it outputs a confirmation signal that data has been received. Details will be described later.

FIG. 11 is a diagram showing an embodiment of the internal configuration of the second PC communication control unit 92 shown in FIG.

In FIG. 11, 93 is the second PC configuration information section, 94 is the second PC configuration information, 95 is the second communication data generating means, and 96 is the second PC data.
PC reception means, 98 is the second PC reception data, 99 is the second PC reception data.
The second PC configuration information unit 93, which is a bus data generation unit, has information for transferring data to be communicated from the second PC 3 in an appropriate format, and outputs the data as second PC configuration information 94. Here, the second PC configuration information 94 includes the file data in the second storage unit 86, the second PC
The following description will be made assuming that this is information for communicating window display information of No. 3 and keyboard / mouse information from the first PC 2. The second communication data generation means 95 transmits the second PC configuration information 94 to the second P at the time of startup such as when the power is turned on or when the connection of the peripheral device is confirmed.
The data is output as C-monitor communication data 48, and during normal operation, a second bus output 90 which is bus data is output as the second PC-monitor communication data 48 in a predetermined communication data format. The second PC receiving means 96 communicates with the second storage unit 8 via the monitor-second PC communication data 47.
6, a read request, a request for window display information of the second PC 3, and information of the keyboard 4 and the mouse 5 connected to the first PC 2.
It is output as received data 98. The second bus data generating means 99 is any one of a write request to the second storage unit 86, a read request, a request for window display information, keyboard and mouse information, based on the identifier added to the second received data 98. And if it is a write request,
If a write request, a file name, and file data from the first PC 2 are read requests, a read request
The file name is converted into bus data if the request is for window display information, and the keyboard and mouse information is converted into bus data if the request is keyboard information and mouse information.

FIG. 12 is a diagram showing one embodiment of the communication data format in the present invention.

In FIG. 12, reference numeral 100 denotes positive communication data which is a positive signal of the differential signal, 101 denotes negative communication data which is a negative signal, and 102 denotes differential communication data representing the meaning of the differential signal. Yes, when the plus communication data 100 is “1”, the minus communication data 1
01 has a relation of “0”. The meaning at this time is indicated by the differential communication data 102.

FIG. 13 is a diagram showing the flow of configuration information at the time of startup, such as when power is turned on between the communication control units or when connection of peripheral devices is confirmed.

In FIG. 13, reference numeral 103 denotes first PC configuration data for performing data communication required by the peripheral device connected to the first PC 2, and reference numeral 104 denotes information for performing data communication required by the monitor device 1. Certain monitor configuration data, 105 is the second PC
3 is the second PC configuration data for performing data communication required by the first PC communication control 71, the first PC configuration data 103, the monitor configuration data 104 from the monitor device, It recognizes all the second PC configuration data 105 from the 2PC 3 and schedules each communication period within a certain period. Here, the first PC configuration data 103 is used to request keyboard information and mouse information for a keyboard and a mouse, a window display information request to the first central control unit, a file read request from the first storage unit, and a first storage unit. , And a file write request to the first storage unit are respectively scheduled, output of window display information to the monitor device is scheduled by the monitor configuration data 104, and window display information of the window display information is scheduled by the second PC configuration data. A request to the second PC 3, a file read request from the second storage unit, a file read data output from the second storage unit, and a file write request to the second storage unit are respectively scheduled.

FIG. 14 is a diagram showing an embodiment of the scheduling of data communication.

In FIG. 14, reference numeral 106 denotes a communication cycle;
7 is communication cycle start information, 108 is keyboard information,
109 is mouse information, 110 is window display information, 1
Numeral 11 denotes an idle time, and a communication period 106 is a period from the communication cycle start information 107 to the next start information, and communication with all peripheral devices is performed within this period. In the present invention, this period is assumed to be 1 (ms) of the USB standard, and one communication cycle unit is referred to as a frame. Communication cycle start information 107
Is a signal indicating the start of a communication cycle. Here, a 4-bit signal (for example, “0101”) indicating that the signal type is start start information, an 11-bit frame number, and a 5-bit error detection Total 20 composed of codes
A description will be given below assuming that the signal is a bit signal. The keyboard information 108, the mouse information 109, and the window display information 110 are periods in which each information is requested from the peripheral device and received, and each frame is scheduled, and the remaining time becomes the idle time 111. Details will be described later. The file exchange is scheduled during the idle time 111, which will be described later in detail.

FIG. 15 shows the keyboard information 108 and window information 110 scheduled in FIG.
FIG. 4 is a diagram showing an example of details of the embodiment.

In FIG. 15, reference numeral 112 denotes a capture signal indicating that the communication data is a capture to the first PC communication control unit;
Reference numeral 113 denotes keyboard address information specifying that the communication destination is a keyboard; 114, key data from the keyboard 4; 115, transmission confirmation information for confirming that data has been sent in response to a data request from the first PC communication control unit. ,
116 is a transmission signal indicating that communication data is transmitted from the first PC communication control unit, 117 is second PC keyboard control address information designating that the communication destination is the keyboard control unit in the second central control unit, 118 is the first P
C: reception confirmation information for confirming that data has been received from the communication control unit; 119, monitor device address information for designating that the communication destination is a monitor device; 120, a first PC
2, window display information indicating the size and position of the window display; 121, second PC resolution control address information specifying that the communication destination is a resolution control unit in the second central control unit; 122, display of the second PC 3 This is window resolution information indicating the resolution, and the capture signal 112 is a signal indicating that it is communication for capturing data as viewed from the first PC communication control unit 71. Here, a 4-bit signal (for example, “0001”) )). Outgoing signal 1
Reference numeral 16 denotes a signal indicating that the communication is for transmitting data as viewed from the first PC communication control unit 71. Here, it is assumed that the signal 16 is a 4-bit signal (for example, “1001”). The keyboard address information 113, the second PC keyboard control address information 117, the monitor device address information 119, and the second PC resolution control address information 121 are addresses assigned as communication destinations of the first PC communication control unit 71 at the time of scheduling. Here, an 11-bit signal is used. Each of the key data 114, the window display information 120, and the window resolution information 122 is communication data, and here is a signal of 0 to 1023 bytes. The transmission confirmation signal 115 is a signal for confirming that the data requested by the first PC communication control unit 71 has been transmitted by the communication partner. Here, if transmission is not possible, a signal indicating that transmission from the communication partner is not possible (for example, “1
010 "), when the transmission data can be received by the first PC communication control unit 71, the signal is a signal (for example," 0010 ") indicating successful reception from the first PC communication control unit 71. The reception confirmation signal 118 is , A signal confirming that the data transmitted from the first PC communication control unit 71 has been received by the communication partner. In this case, if the data cannot be received, a signal indicating reception failure from the communication partner (for example, “1010”);
If the signal has been successfully received, the signal indicates that the signal has been successfully received from the communication partner (for example, “0010”).

FIG. 16 is a diagram showing an example of the details of scheduling file transfer communication during the idle time of scheduling shown in FIG.

In FIG. 16, keyboard information 108,
The mouse information 109 and the window information 110 are the same as those shown in FIG. Reference numeral 123 denotes a file transfer period indicating a period of file exchange between the first PC and the second PC;
4 is first storage device address information designating that the communication destination is the first storage device, 125 is first file data that is file information read from the first storage device, and 126 is the second storage device as the communication destination. The second storage device address information 127 specifying that there is a file is second file data, which is file information read from the second storage device. The upper part is the file transfer from the first PC to the second PC, and the lower part is the second file data.
FIG. 6 is a diagram showing a file transfer from C to a first PC. The fetch signal 112 is the same as that shown in FIG. 15, and the first storage device address information 124 and the second storage device address information 1
Numeral 26 denotes an address assigned as a communication destination of the first PC communication control unit at the time of scheduling, and is also an 11-bit signal here. First file data 1
25 and the second file data 127 are communication data, and are also signals of 0 to 1023 bytes.

Transmission confirmation signal 115, reception confirmation signal 118
Are the same as those shown in FIG.

The outline of connection and display of two PCs in this embodiment will be described below with reference to FIGS.

In FIG. 1, the monitor device 1 has two monitor connectors, one of which is used by connecting a commonly used desktop type first PC 2. In this embodiment,
A connector for connecting the second PC 3 is provided on the front side, and a document created or edited in another place is edited on a large screen such as the monitor device 1 using a movable PC such as a notebook PC. If you want to continue, it is easy to use.
At this time, the monitor device 1 displays the second PC on the screen of the first PC 2.
The screen of the PC 3 is controlled to be displayed in a window. Details will be described later. Furthermore, since the monitor connector of the monitor device 1 has a communication means with the PC at the interface, the screen of the second PC 3 displayed on the window can be controlled by the keyboard 4 and the mouse 5 connected to the first PC 2. Details will be described later.

In FIG. 2, the second PC display screen 7 shows the first PC
This indicates that a window is displayed on the display screen 6. The display position is determined by a vertical coordinate 8 at the upper left corner of the second PC display screen and a horizontal coordinate 10, and the size is a vertical size 9 of the second PC display screen and a horizontal size 1
Determined by 1. Both are controlled by the first PC 2. Details will be described later. The mouse cursor 12 is a cursor of the mouse 5 connected to the first PC 2.
Window operations such as moving and changing the size of the PC display screen 7 and operation of icons on the second PC display screen 7 are also possible. By moving the file on the second PC screen 7 inside the PC or by moving the file on the second PC screen 7 onto the first PC screen 6 outside the window, the file exchange between the first PC 2 and the second PC 3 becomes possible. . Details will be described later.

Next, the details of the communication operation between the two PCs and one monitor device shown in FIG. 1 will be described with reference to FIGS.

First, FIGS. 3, 4, 7-11 and 13-16
The scheduling operation of communication will be described with reference to FIG.

In FIG. 3, the monitor device 1 and the second PC 3
When the power is turned on or when starting up when connection of peripheral devices is confirmed, configuration information for performing necessary communication is output. The configuration information from the monitor device 1 is transmitted to the first monitor connector 19, the first
Communication data 15, first P via first PC connector 13
C2, the configuration information from the second PC 3 is transmitted to the second PC connector 16, the second communication data 1
8, second monitor connector 20, monitor device 1, first monitor connector 19, first communication data, first PC connector 1
3 to the first PC. The first PC 1 also internally generates necessary configuration information. From these configuration information, the first PC
2. Schedule all necessary communications.

In FIG. 13, the first PC communication control 71 in the first PC 2 recognizes all of its own first PC configuration data 103, monitor configuration data 104 from the monitor device, and second PC configuration data 105 from the second PC 3. It shows that each communication period is scheduled within a certain fixed period. Keyboard information, mouse information request to keyboard and mouse, window display information request to first central control unit 60, file read request from first storage unit 61, first storage unit 61 based on first PC configuration data 103 File read data output from
File write requests to the storage unit 61 are respectively scheduled, and the monitor configuration data 104
The window display information is scheduled to be output to the monitor device 1 by using the second PC 3 configuration data, the window display information is requested to the second PC 3, the file is read from the second storage unit 86, and the file is output from the second storage unit 86. Read data output, 2nd
File write requests to the storage unit 86 are respectively scheduled.

In FIG. 14, a communication period 106 which is a constant cycle
In FIG. 16, keyboard information 108, mouse information 109, and window display information 110 are scheduled.
Indicates that the scheduling is performed during the idle time only when the file transfer 124 is necessary.

The scheduling of communication data will be described in detail with reference to FIGS. 3, 4, 7 to 11, and 14 to 16. FIG.

First, the scheduling of communication with the monitor device 1 will be described with reference to FIGS. 3, 4, 7 to 9, 14, and 15.

In FIG. 7, a monitor device configuration information section 57 outputs communication configuration information required by the monitor device 1 at startup such as when power is turned on or when connection of peripheral devices is confirmed. , The second communication data control means 55 outputs the data as monitor-first PC communication data 45. The configuration information includes the assignment of an address to the monitor device 1 as a communication destination and the necessity of communication at a constant cycle.

In FIG. 4, the configuration information is the first
The communication data 15 is output via the first monitor connector 19.

In FIG. 3, the configuration information is the first
The communication data 15 and the first PC connector 13
Input to PC2.

In FIG. 8, the configuration information is input to the first PC communication control section 71 via the monitor-first PC communication data 45.

In FIG. 9, the configuration information is the first
The first PC receiving means 72
Since the data at the time of startup is configuration information, the data is output to the schedule control unit 77 as external configuration information 73. The schedule control unit 77 schedules communication to the monitor device 1 from the configuration information.

FIGS. 14 and 15 show that the window display information 110, which is the communication of the monitor device 1, is scheduled for each period of the communication period 106.

Next, the scheduling of communication with the first PC 2 will be described with reference to FIGS.

In FIG. 9, the first PC configuration information section 75 stores the communication configuration information required by the first PC 2 at the time of startup such as when power is turned on or when connection of peripheral devices is confirmed. 77
Output to The schedule control unit 77 schedules communication to the first PC 2 based on the configuration information. This configuration information includes the first
This includes assigning addresses to the central control unit 60 and the first storage unit 61 as communication destinations, and performing communication only when necessary.

FIG. 16 shows that the file transfer 123, which is the communication of the first PC 2, is scheduled only when necessary during the idle time of the communication period 106.

Further, FIGS. 3, 4, 7 to 9, 10, 11,
The scheduling of communication with the second PC 3 will be described with reference to 14 to 16.

In FIG. 11, a second PC configuration information section 93 outputs communication configuration information required by the second PC 3 at startup such as when power is turned on or when connection of peripheral devices is confirmed. The second communication data generator 95 outputs the second PC-monitor communication data 48. This configuration information includes the second
Assigning an address as a communication destination for PC window resolution control, mouse and keyboard control, and requiring communication at a fixed cycle, or assigning an address as a communication destination in the second storage unit 86 and performing communication only when necessary Is included.

In FIG. 10, the configuration information is output via the second PC-monitor communication data 48 and the second PC connector.

In FIG. 3, the configuration information is the second
The data is input to the monitor device 1 via the communication data 18 and the second monitor connector 20.

In FIG. 4, the configuration information is the second
The data is input to the communication control means 21 via the communication data 18.

In FIG. 7, the configuration information is the second
The data is input to the second communication data control means 55 via the PC-monitor communication data 48. Second communication data control means 5
5 outputs configuration information as monitor-first PC communication data 45.

In FIG. 4, the configuration information is the first
The communication data 15 is output via the first monitor connector 19.

In FIG. 3, the configuration information is the first
The communication data 15 and the first PC connector 13
Input to PC2.

In FIG. 8, the configuration information is input to the first PC communication control section 71 via the monitor-first PC communication data 45.

In FIG. 9, the configuration information is the first
The first PC receiving means 72
Since the data at the time of startup is configuration information, the data is output to the schedule control unit 77 as external configuration information 73. The schedule control unit 77 obtains the second PC from the configuration information.
3 is scheduled for communication.

14 and 15, the keyboard information 108, the mouse information 109, and the window display information 110, which are the communications of the second PC 3, are scheduled for each period of the communication period 106.

FIG. 16 shows that the file transfer 123, which is the communication of the second PC 3, is scheduled only when necessary during the idle time of the communication period 106.

Thus, the scheduling of communication in the first PC communication control section 71 is completed.

The details of the communication data in the present invention will be described for each operation.

First, the window display operation of the two PCs shown in FIG. 2 will be described in detail with reference to FIGS.

In FIG. 3, the first PC 2 is 1024 × 768.
Using the dot display data as the first display data 14, information on the position and size of the window for superimposed display is displayed.
The first communication data 15 according to the communication schedule at the time of startup such as when power is turned on or when connection of peripheral devices is confirmed.
Is output from the first PC connector 13 to the monitor device 1 via the first monitor connector 19. 2nd PC3
Means that the display data of 640 × 480 dots is used as the second display data 17 and the resolution information indicating that the resolution is 640 × 480 dots is transmitted at the time of power-on or at the time of startup at the time of confirmation of connection of a peripheral device. The second communication data 18 is output from the second PC connector 16 to the monitor device 1 via the second monitor connector 20 according to the schedule. The resolution information of the second PC 3 is output as the first communication data 15 to the first PC 2 via the monitor device 1. The first PC 2 determines an initial value of the window size in accordance with the resolution information sent from the second PC 3 via the monitor device 1. Therefore, in the present embodiment, the initial value of the window display size is 640 × 480. After that, when the size of the window is changed by the mouse 5 or the like, the monitor device 1
Transfer information to The monitor device 1 displays the first display data 14
At the same time as displaying the position and size of the window transmitted via the first communication data 15 and the resolution information transmitted via the second communication data 18. The window of the second display data 17 of the second PC 3 is set on the display screen of the first PC 2.

In FIG. 12, the first communication data 1 in this embodiment is
5 shows the communication data format of the second communication data 18. In the present embodiment, the communication data format indicates the USB communication which is the serial communication.
Further, high-speed serial communication of the IEEE 1394 standard or normal serial communication of a keyboard, a mouse or the like may be used. If the interface signal lines have room, communication may be performed in parallel.

Using FIGS. 3, 4, 7 to 9 and 15, the first communication data 1 when the windows of the two PCs of the first PC 2 and the second PC 3 shown in FIG.
5. Details of the second communication data 18 will be described. Note that the first display data 14 and the second display data 17 are omitted for the description of the communication data.

In FIG. 9, the first communication data generating means 80
According to the communication data schedule information, the capture signal 112 and the first PC window control address information 119 are output as the first PC peripheral device transmission data 81 during the window information 110 in the communication period 106 shown in FIG. The first bus data generating means 79 sends the first bus input 7 from the first PC window control address information 119 so as to request the first central control unit for window display information.
Generate 0.

In FIG. 8, the window display information request is input to the first central control unit 60 via the first bus input, the first bus 68, and the first central control unit bus input 63. In response to the request, the first central control unit 60 outputs information on the position and size of the window display as a first central control unit bus output.
The window display information includes the first bus 68 and the first bus output 6
9 to the first PC communication control unit 71.

In FIG. 9, the window display information is input to the first bus data control means 79 and the first communication control means 80 via the first bus output 69. When the information corresponding to the request is not sent together with the sent window display information, the first bus data control means 79 sends a transmission confirmation signal for indicating transmission failure to the first PC peripheral device reception data 8.
2 and output to the first communication data generating means 80. The first communication data generating means 80 outputs the transmission confirmation signal indicating the request transmission success as the first PC peripheral device transmission data 81 when the information corresponding to the request has been sent and received, and thereafter, according to the communication data schedule information. , Window information 1 in communication period 106 shown in FIG.
During the period of 10, the transmission signal 116, the monitor device address information 119, and the window information 120 are transmitted to the first PC-
It is output as monitor communication data 46.

In FIG. 8, the first PC-monitor communication data 46
Is output via the first PC connector 13 as first communication data.

In FIG. 3, the first communication data 15 is input to the monitor device 1 via the first monitor connector 14.

In FIG. 4, the first communication data 15 is the communication means 2
1 is input.

In FIG. 7, the first communication data 15 includes the first
The PC-monitor communication data 46 is transmitted to the communication data discriminating means 4.
9, input to the first communication data control means 51. The communication data discriminating means 49 outputs the transmission signal 116 and the monitor device address information 119 included in the first PC-monitor communication data.
It is determined that the communication data is from the first PC 2 to the monitor device 1 and is output to the first communication data control means 51 and the second communication data control means 55 as the communication data transfer destination information 50. First PC communication data control means 51
Since the communication data is data to the monitor device 1 from the data transfer destination information 50, the window position information 5
In step 2, the monitor-first PC communication data 45 is output to the window information generating unit 61, and a reception confirmation for confirming that the data has been received is output. The window information generation unit 61 generates the display position designation signal 23 from the window position information 52.

In FIG. 4, the display position designation signal 23 is output to the display control means 24.

[0097] The above description shows that the second PC is displayed on the display screen of the first PC 2.
Window display information indicating the position and size of the window display when the display screen of the PC 3 is displayed as a window is transferred from the first PC 2 to the monitor device 1.

Using FIGS. 3, 4, 7 to 11 and 15, FIG.
The details of the control of the second communication data 18 when the screens of the two PCs of the first PC 2 and the second PC 3 described above are displayed on the monitor device 1 in a window will be described. Note that the first display data 14 and the second display data 17 are omitted for the description of the communication data.

In FIG. 9, the first communication data generating means 80
According to the communication data schedule information, during the window information 110 in the communication period 106 shown in FIG. 15, the capture signal 112 and the second PC resolution control address information 122 indicating the request for the resolution information of the second PC 3
It is output as the first PC-monitor communication data 46.

In FIG. 8, the resolution information request includes the first PC-monitor data 46 as the first communication data 15 and the first P-monitor communication data 46.
Output via the C connector 13.

In FIG. 3, the resolution information request is sent to the monitor 1 via the first communication data 15 and the first monitor connector 14.
Is input to

In FIG. 4, the resolution information request is input to the communication means 21 via the first communication data 15.

In FIG. 7, the resolution information request is input to the communication data discriminating means 49 and the first communication data control means 51 via the first PC-monitor communication data 46 in the first communication data 15. The communication data determining means 49 determines whether the first P
Capture signal 112 included in C-monitor communication data, second
From the PC resolution control address information 122, it is determined that the first PC-monitor communication data 46 is from the first PC 2 to the second PC 3, and the resolution information from the second PC 3 after the capture signal 112 and the second PC resolution control address information 122. Is returned as the second PC-monitor communication data 48, and is output to the first communication data control means 51 and the second communication data control means 55 as communication data transfer destination information 50. The first PC communication data control means 51 controls the communication data to be a request for resolution information to the second PC 3 from the data transfer destination information 50, and outputs the monitor-second PC communication data 47 as the second communication data 18.

In FIG. 4, the resolution information request is output via the second communication data 18 and the second monitor connector 20.

In FIG. 3, the resolution information request is input to the second PC 3 via the second communication data 18 and the second PC connector 16.

In FIG. 10, the resolution information request is input to the second PC communication control unit 92 via the monitor-second PC communication data 47 in the second communication data 18.

In FIG. 11, the resolution information request is input to the second PC receiving means 96 via the monitor-second PC communication data 47, and the second PC receiving means 96 receives the fetch signal 112 which is the resolution information request, the second PC The resolution control address information 122 is output to the second bus data generation unit 99 as the second PC reception data. Second bus data generating means 99
Converts the second PC reception data 98 into a second bus input 91 which is the bus data of the second PC 3.

In FIG. 10, the resolution information request is input to the second central control unit 83 via the second bus input 91, the second bus 89, and the second central control unit bus input 85. The second central control unit 83 outputs the resolution information of the display screen of the second PC 3 as the second central control unit bus output 84 in response to the request.
The second PC resolution information includes a second bus 89 and a second bus output 9
0 to the second PC communication control unit 92.

In FIG. 11, the second PC resolution information is input to the second communication data control means 95 via the second bus output 90. The second communication data control means 95 converts the second PC resolution information into a predetermined format, and receives a resolution information request after the resolution information and confirms that the resolution information has been transmitted, as shown in FIG. The transmission confirmation signal 115 to be transmitted is added and output as the second PC-monitor communication data 48.

In FIG. 10, the second PC resolution information is the second P resolution.
As the C-monitor communication data 48, the second communication data 1
8, output via the second PC connector 16.

In FIG. 3, the second PC resolution information is input to the monitor device 1 via the second communication data 18 and the second monitor connector 20.

In FIG. 4, the second PC resolution information is input to the communication control means 21 via the second communication data.

In FIG. 7, the second PC resolution information is input to the second communication data control means 55 as the second PC-monitor communication data 48 in the second communication data, and the second communication data control means 55 From the destination information 50, the second P
It controls that the C resolution information is data to the first PC 2, outputs it as the monitor-first PC communication data 45 via the first communication data 15, and outputs it as window resolution information 56 to the window information generating means 61. . The window information generating means 61 generates the second resolution signal 22 from the window resolution information 56.

In FIG. 4, the second PC resolution information is output via the first communication data 15 and the first monitor connector 15.

In FIG. 3, the second PC resolution information is transmitted via the first communication data 15 and the first PC connector 13 to the first PC.
2 is input.

In FIG. 8, the second PC resolution information is input to the first PC communication control section 71 as the monitor-first PC communication data 45 in the first communication data 15.

In FIG. 9, the second PC resolution information is the
The first PC receiving means 7 via the first PC communication data 45
2, the first PC receiving means 72 outputs the second PC resolution information as first PC information 74 to the first bus data control means 79. First bus data control means 79
Converts the first PC information 74 into bus data and outputs it as a first bus input 70.

In FIG. 8, the second PC resolution information includes a first bus input 70, a first bus 68, and a first central control unit bus input 63.
Is input to the first central control unit 60 via the. The first central control unit 60 understands the second PC resolution information.

As described above, the second screen is displayed on the display screen of the first PC 2.
The second PC when displaying the display screen of the PC 3 in a window
The resolution information of the display screen is transferred from the second PC 3 to the monitor device 1 and the first PC 2.

The operation of the monitor device 1 shown in FIG. 3 to display the window of the second PC 3 on the display of the first PC 2 will be described in detail with reference to FIGS.

In FIG. 4, the display data of the first PC 2 is input as the first display data 14 to the display control means 24 via the first monitor connector 19, and the display data is superimposed on the display of the first PC 2. Information on the position and size is input to the communication control unit 21 via the first monitor connector 19 as the first communication data 15. 2nd P
The display data of C3 is input to the display control means 24 via the second monitor connector 20 as the second display data 17, and the resolution information of the second PC 3 is input as the second communication data 18 via the second monitor connector 20. , Communication control means 2
1 is input.

The communication control means 21 stores the first communication data 14
The display position signal 23 is generated in accordance with the information on the position and size of the overlapping window transmitted via the second communication signal 18 via the second communication data 18 in accordance with the resolution information of the second PC 3 transmitted through the second communication data 18. It is generated and output to the display control means 24. For example, the coordinates at the upper left of the superimposition window are the tenth dot in the horizontal direction and the tenth line in the vertical direction in a resolution of 1024 × 768 dots, and the size is 64.
If it is 0 × 480 dots, the display position signal 23 is “1” from the 10th line to the 489th line in the vertical direction from the 10th dot to the 649th dot in the horizontal direction, and the resolution signal 22 is 640 dots in the horizontal direction. The signal indicates 480 dots in the vertical direction. The display control means 24 controls the first display data 14 to display a window at a position according to the display position signal 23 at a size obtained by resolution-converting the second display data 17 according to the resolution signal 22. Output as display data 25. Details will be described later.
The liquid crystal display 26 performs display according to the liquid crystal display data 25.

In FIG. 5, the first data conversion means 27
The display data 14 is converted into first parallel data 29 composed of 8-bit parallel data of each color of RGB, a vertical synchronizing signal, a horizontal synchronizing signal, and a dot clock. In this embodiment, since the first display data 14 is an LVDS signal, the first data conversion means 27 performs serial / parallel conversion. Therefore, the first display data 14
Is composed of parallel data of 8 bits for each color of RGB, a vertical synchronizing signal, a horizontal synchronizing signal, and a dot clock, a configuration without the first data converter 27 is also possible. When the first display data is analog data, the first data conversion means 27 may be configured to include analog / digital conversion. The second data converter 28 has the same configuration as the first data converter 27. The resolution / frequency conversion means 32 converts the second parallel data 31 into data having a resolution according to the resolution information 22, and outputs the first synchronization signal 3.
0, frequency conversion is performed at a timing according to the display position signal 23, and output as window display parallel data 33. Details will be described later. The data switching means 34
When the display position signal 23 is “0”, the first parallel data 2
9 is “1”, the window display parallel data 33
Is output as the overlay display data 35. The liquid crystal data conversion means 36 converts the superimposed display data 35 composed of 8-bit parallel data of each color of RGB, a vertical synchronizing signal, a horizontal synchronizing signal, and a dot clock according to the input signal specification of the liquid crystal display 26. In this embodiment, since the input signal of the liquid crystal display 26 is an LVDS signal, the liquid crystal data converter 36 includes a parallel / serial converter. The input signal of the liquid crystal display 26 is RGB 8-bit parallel data,
In the case of a configuration including a vertical synchronization signal, a horizontal synchronization signal, and a dot clock, a configuration without the liquid crystal data conversion unit 36 is also possible. RGB of input signal of liquid crystal display 26
When the number of data bits is less than 8 bits (for example, 6
Bit), the liquid crystal data conversion means 36
(Frame Rate Control) or the like may be used to include means for converting 8-bit data into 6-bit data.

In FIG. 6, the second parallel data 31 which is the display data of the second PC 3 is synchronized after resolution conversion by the resolution conversion means 37 in accordance with the resolution signal 22 indicating the size of the first PC 2 displaying the window of the second PC 3 on the window. The signal 38 is converted into display data 39 after resolution conversion.
The display data 39 after the resolution conversion is the first data to superimpose the display data of the second PC 3 on the display data of the first PC 2.
It is necessary to match the timing of the display data of PC2. Therefore, the display data 39 after the resolution conversion is temporarily stored in the window screen storage means 44 for one screen, and the first PC 2
Is read in accordance with the display timing of. Therefore, the writing control unit 40 outputs the writing control signal 4 from the resolution converted synchronization signal 38 which is the display timing of the second PC 3.
The read control unit 42 generates a read control signal 4 based on the first synchronization signal 30 indicating the timing of the first PC 2 and the display position signal 23 indicating the position of the window display.
3 is generated. Therefore, in the present embodiment, the window screen storage means 44 has a maximum of 1024 dots × 76
It suffices if there is a capacity of 8 dots × 8 bits × 3 (RGB) bits. In this way, the window display parallel data 33 which is the resolution converted and frequency converted display data of the second PC 3 is generated.

Next, with reference to FIGS. 3 to 12 and 15, details of the operation of making the operation of the keyboard 4 and the mouse 5 connected to the first PC 2 shown in FIG. 1 effective in the second PC 3 will be described.

In FIG. 3, the first PC 2 fetches key data and cursor position information of the keyboard 4 and the mouse 5, and according to a communication schedule at the time of startup such as when power is turned on or when connection of peripheral devices is confirmed. The data is output to the monitor device 1 as one communication data 15. keyboard,
The mouse information is output as the second communication data 18 to the second PC 3 via the monitor device 1. The second PC 3 is the first
The keyboard and mouse information sent from the PC 2 via the monitor device 1 is fetched and made valid within the window display of the second PC 3 shown in FIG.

In FIG. 12, the first communication data 1 in this embodiment is shown.
5 shows the communication data format of the second communication data 18. As in the case of the window information, the present embodiment indicates that the communication data format is USB communication which is serial communication.
4 standard serial communication, a normal keyboard,
Serial communication such as a mouse may be used. If the interface signal lines have room, communication may be performed in parallel.

Using FIGS. 3, 4, 7 to 9 and 15, the first communication data 15 when the operation of the keyboard 4 and the mouse 5 connected to the first PC 2 shown in FIG. The details of the second communication data 18 will be described. For the sake of simplicity, only the keyboard information will be described here, but the same applies to mouse information. In addition, the first display data 14 and the second display data 17 are omitted for the description of the communication data.

In FIG. 9, the first communication data generating means 80
According to the communication data schedule information, during the period of the keyboard information 108 in the communication period 106 shown in FIG.
Is output as the first PC peripheral device transmission data 81.
The first bus data generating means 79 generates the first bus input 70 from the keyboard address information 113 so as to request the first central control unit 60 for the keyboard information.

In FIG. 8, the keyboard information request is input to the first central control unit 60 via the first bus input 70, the first bus 68, and the first central control unit bus input 63. The first central control unit 60 outputs the keyboard information as a first central control unit bus output 62 in response to the request. Keyboard information
The signal is input to the first PC communication control unit 71 via the first bus 68 and the first bus output 69.

In FIG. 9, the keyboard information is the first bus output 6
9 to the first bus data control means 79. If the information corresponding to the request is not sent together with the sent keyboard information, the first bus data control means 79 sends a transmission confirmation signal for indicating transmission failure to the first P
The data is output to the first communication data generating means 80 as C peripheral device reception data 82. The first communication data generation means 80
If the information corresponding to the request has been transmitted and received, a transmission confirmation signal indicating successful transmission of the request is output as the first PC peripheral device transmission data 81, and thereafter, according to the communication data schedule information, the communication period 106 shown in FIG. In the period of the keyboard information 108 in the transmission signal 1
16, the second PC keyboard control address information 117 and the key data 114 are output as the first PC-monitor communication data 46.

In FIG. 8, the keyboard information is the first PC-monitor communication data 46 as the first communication data.
Output via connector 13.

In FIG. 3, the keyboard information and the first communication data 15 are transmitted through the first monitor connector 14 to the monitor device 1.
Is input to

In FIG. 4, the keyboard information and the first communication data 15 are input to the communication means 21.

In FIG. 7, the keyboard information is input to the communication data discriminating means 49 and the first communication data control means 51 via the first PC-monitor communication data 46 in the first communication data 15. The communication data determining means 49 determines whether the first P
The transmission signal 116 included in the C-monitor communication data, the second
From the PC keyboard control address information 117, the first PC
Determining that the monitor communication data 46 is from the first PC 2 to the second PC 3 and transmitting the communication data transfer destination information 50
And the reception confirmation for confirming that the data has been received is output as the monitor-first PC communication data 45. here,
There is no output to the second communication data control means 55. 1st PC
The communication data control unit 51 controls the communication data to be keyboard information for the second PC 3 based on the data transfer destination information 50 and transmits the monitor-second PC communication data 47 to the second PC 3.
Output as communication data 18.

In FIG. 4, the keyboard information is output via the second communication data 18 and the second monitor connector 20.

In FIG. 3, the keyboard information is input to the second PC 3 via the second communication data 18 and the second PC connector 16.

In FIG. 10, the keyboard information is input to the second PC communication control unit 92 via the monitor-second PC communication data 47 in the second communication data 18.

In FIG. 11, the keyboard information is input to the second PC receiving means 96 via the monitor-second PC communication data 47, and the second PC receiving means 96 transmits the sending signal 116 which is the keyboard information, the second PC keyboard control address. The information 117 and the key data 114 are output to the second bus data generation unit 99 as the second PC reception data. The second bus data generating means 99 converts the second PC reception data 98 into
The data is converted into the second bus input 91 which is the bus data of the second PC 3.

In FIG. 10, the keyboard information is input to the second central control unit 83 via the second bus input 91, the second bus 89, and the second central control unit bus input 85. The second central control unit 83 validates the keyboard information in the second PC 3.

As described above, the operations of the keyboard 4 and the mouse 5 connected to the first PC 2 shown in FIG. 1 are made effective also in the second PC 3.
The details of the file exchange operation between the two PCs of the first PC 2 and the second PC 3 shown in FIG. 3 will be described. Note that the first display data 14 and the second display data 17 are omitted for the description of the communication data.

First, a case where a file is moved from the first PC 2 to the second PC 3 will be described.

In FIG. 2, the user moves the file to the second display screen 7 while clicking the icon of the file to be moved in the first display screen 6 with the mouse cursor 12.

In FIG. 3, the file data read from the first PC 2 uses the idle time of the communication schedule at the time of startup such as when the power is turned on or when the connection of the peripheral device is confirmed. 15 is output to the monitor device 1 from the first PC connector 13 via the first monitor connector 19. The monitor device 1 outputs the first PC file data transmitted via the first communication data 15 to the second PC 3 via the second monitor connector 20 and the second PC connector 16.

In FIG. 12, the first communication data 1 in this embodiment is shown.
5 shows the communication data format of the second communication data 18. In the present embodiment, the communication data format indicates the USB communication which is the serial communication.
Further, high-speed serial communication of the IEEE 1394 standard or normal serial communication of a keyboard, a mouse or the like may be used. If the interface signal lines have room, communication may be performed in parallel.

Using FIGS. 3, 4, 7 to 9 and 15, the first communication data 15 and the second communication data 18 when exchanging files between the two PCs, the first PC 2 and the second PC 3 shown in FIG. Will be described in detail. Note that the first display data 14 and the second display data 17 are omitted for the description of the communication data.

In FIG. 8, the movement of the mouse 5 is fetched to the first central control unit 60 via the first mouse information first bus output 67 and the first bus 68, and the first mouse information which recognizes the movement of the file is read.
The central control unit 60 outputs a file transfer instruction from the first PC 2 to the second PC 3 to the first PC communication control unit 71 via the first central control unit bus output 62, the first bus 68, and the first bus output 69. .

In FIG. 9, the file transfer instruction is input to the first bus data control means 79 via the first bus output 69. The first bus data control unit 79 outputs the file transfer instruction as the first PC peripheral device reception data 82 to the first communication data generation unit.

The first communication data generation means 80 performs communication period 1 shown in FIG.
In the period of the file transfer 124 scheduled in the idle time in the period 06, the capture signal 112 indicating the first file read request and the first storage unit address information 125
As the first PC peripheral device transmission data 81 to the first bus data control means 79. The first bus data control unit 79 converts the first PC peripheral device transmission data 81 indicating the first file read request into bus data, and outputs the bus data via the first bus input 70.

In FIG. 8, the first file read request is sent to the first bus input 70, the first bus 68, the first storage unit bus input 6
4 to the first storage unit 61. First storage unit 6
1 outputs the first file information such as the file name and the file data to the first PC communication control unit 71 via the first storage unit bus output 65, the first bus 68, and the first bus output 69 according to the request.

In FIG. 9, the first file information is input to the first bus data control means 79 via the first bus output 69, and the first bus data control means 79
If the information for the request is not sent together with the file information, a transmission acknowledgment signal for indicating transmission failure is sent to the first
The data is output to the first communication data generation means 80 as PC peripheral device reception data 82. First communication data generation means 80
When the information corresponding to the request is transmitted and received, the transmission confirmation signal indicating the successful transmission of the request is output as the first PC peripheral device transmission data 81, and thereafter, according to the communication data schedule information, the communication period shown in FIG. 106
The transmission signal 116 indicating the first file write request, the second storage unit address information 127, and the first file data 126 are used as the first PC-monitor communication data 46 in the period of the file transfer 124 scheduled in the free time in Output.

In FIG. 8, the first file write request includes the first PC-monitor communication data 46, the first communication data 15,
Output via the first PC connector 13.

In FIG. 3, the first file write request is input to the monitor device 1 via the first communication data 15 and the first monitor connector 14.

In FIG. 4, the first file write request is input to the communication means 21 via the first communication data 15.

In FIG. 7, the first file write request is input to the communication data discriminating means 49 and the first communication data control means 51 via the first PC-monitor communication data 46 in the first communication data 15. . Communication data determination means 49
Is the transmission signal 1 included in the first PC-monitor communication data.
16. It is determined from the second storage unit address information 127 that the communication data is from the first PC 2 to the second PC 3, and the first communication data control means 51, the second communication data control Output to the means 55. The first PC communication data control means 51 controls, based on the data transfer destination information 50, that the communication data is a first file write request to the second PC 3,
The communication data 47 is output as the second communication data 18.

In FIG. 4, the first file write request is output via the second communication data 18 and the second monitor connector 20.

In FIG. 3, the first file write request is input to the second PC 3 via the second communication data 18 and the second PC connector 16.

In FIG. 10, the first file write request is
The data is input to the second PC communication control unit 92 via the monitor in the second communication data 18 and the second PC communication data 47.

In FIG. 11, the first file write request is
The data is input to the second PC receiving means 96 via the monitor-second PC communication data 47, and the second PC receiving means 96 uses the transmission signal 116, which is the file write request, and the second storage unit address information 127 as the second PC reception data. The data is output to the 2-bus data generating means 99. The second bus data generation unit 99 converts the second PC reception data 98 into a second bus input 91 which is the bus data of the second PC 3.

In FIG. 10, the first file write request is made by the second bus input 91, the second bus 89, and the second storage unit bus input 8
8, the data is input to the second storage unit 86. The second storage unit 86 stores the file name and file data from the first PC 2 according to the request.

Thus, the file transfer from the first PC 2 to the second PC 3 is completed.

Next, a case where a file is moved from the second PC 3 to the first PC 2 will be described.

In FIG. 2, the mouse cursor 12 is used to move to the first display screen 6 while clicking the icon of the file to be moved in the second display screen 7.

In FIG. 3, the file data read from the second PC 3 uses the idle time of the communication schedule at the start-up such as when the power is turned on or when the connection of the peripheral device is confirmed. The signal 18 is output from the second PC connector 16 to the monitor device 1 via the second monitor connector 20. The monitor device 1 outputs the second PC file data transmitted via the second communication data 15 to the first PC 2 via the first monitor connector 19 and the first PC connector 13.

In FIG. 12, the first communication data 1 in this embodiment is shown.
5 shows the communication data format of the second communication data 18. In the present embodiment, the communication data format indicates the USB communication which is the serial communication.
Further, high-speed serial communication of the IEEE 1394 standard or normal serial communication of a keyboard, a mouse or the like may be used. If the interface signal lines have room, communication may be performed in parallel.

The first communication data 15 and the second communication data 18 at the time of exchanging files between the two PCs of the first PC 2 and the second PC 3 shown in FIG. Will be described in detail. Note that the first display data 14 and the second display data 17 are omitted for the description of the communication data.

In FIG. 8, the movement of the mouse 5 is fetched into the first central control unit 60 via the first mouse information first bus output 67 and the first bus 68, and the first mouse information that recognizes the movement of the file is displayed.
The central control unit 60 outputs a file transfer instruction from the first PC 2 to the second PC 3 to the first PC communication control unit 71 via the first central control unit bus output 62, the first bus 68, and the first bus output 69. .

In FIG. 9, the file transfer instruction is input to the first bus data control means 79 via the first bus output 69. The first bus data control unit 79 outputs the file transfer instruction as the first PC peripheral device reception data 82 to the first communication data generation unit. First communication data generating means 8
0 is a period of the file transfer 124 scheduled in a free time in the communication period 106 shown in FIG. 16 according to the communication data schedule information, and the capture signal 112 indicating the second file read request, the second storage unit address information 127 is output as the first PC-monitor communication data 46.

In FIG. 8, the second file read request includes the first PC-monitor communication data 46, the first communication data 15,
Output via the first PC connector 13.

In FIG. 3, the second file read request is input to the monitor device 1 via the first communication data 15 and the first monitor connector 14.

In FIG. 4, the second file read request is input to the communication means 21 via the first communication data 15.

In FIG. 7, the second file read request is input to the communication data discriminating means 49 and the first communication data control means 51 via the first PC-monitor communication data 46 in the first communication data 15. . Communication data determination means 49
Is the capture signal 1 included in the first PC-monitor communication data.
12. From the second storage unit address information 127, the first PC-
The monitor communication data 46 is from the first PC 2 to the second PC 3. After the capture signal 112 and the second storage unit address information 127, the second file information from the second PC 3 is used as the second PC-monitor communication data 48. It is determined that it is returned, and is output to the first communication data control means 51 and the second communication data control means 55 as the communication data transfer destination information 50. From the data transfer destination information 50, the first PC communication data control means 51 transmits the second communication data to the second PC3.
It controls that this is a file read request, and outputs the monitor-second PC communication data 47 via the second communication data 18.

In FIG. 4, the second file read request is output via the second communication data 18 and the second monitor connector 20.

In FIG. 3, the second file read request is input to the second PC 3 via the second communication data 18 and the second PC connector 16.

In FIG. 10, the second file read request is
The data is input to the second PC communication control unit 92 via the monitor in the second communication data 18 and the second PC communication data 47.

In FIG. 11, the second file read request is:
The data is input to the second PC receiving means 96 via the monitor-second PC communication data 47, and the second PC receiving means 96 uses the capture signal 112, which is the file read request, and the second storage unit address information 127 as the second PC received data. Output to the second bus data generating means 99. The second bus data generation unit 99 converts the second PC reception data 98 into a second bus input 91 which is the bus data of the second PC 3.

In FIG. 10, the second file read request is
The data is input to the second storage unit 86 via the second bus input 91, the second bus 89, and the second storage unit bus input 88. The second storage unit 86 sends the second file information such as the file name and file data to the second PC communication control unit 92 via the second storage unit bus output 87, the second bus 89, and the second bus output 90 according to the request. Output.

In FIG. 11, the second file information is input to the second communication data control means 95 via the second bus output 90. The second communication data control means 95 converts the second file information into a predetermined format,
If the file information cannot be transferred, a transmission confirmation signal 115 indicating transmission failure is added after the second file information, and the second PC-monitor data 48 is output.

In FIG. 10, the second file information is the second PC
The second communication data 18 as the monitor communication data 48,
Output via the second PC connector 16.

In FIG. 3, the second file information is input to the monitor device 1 via the second communication data 18 and the second monitor connector 20.

In FIG. 4, the second file information is input to the communication control means 21 via the second communication data.

In FIG. 7, the second file information is input to the second communication data control means 55 as the second PC-monitor communication data 48 in the second communication data, and the second communication data control means 55 From the destination information 50, the second file information and the transmission confirmation signal are controlled to be data to the first PC 2, and are output as the monitor-first PC communication data 45 via the first communication data 15.

In FIG. 4, the second file information is output via the first communication data 15 and the first monitor connector 15.

In FIG. 3, the second file information is transmitted to the first PC 2 via the first communication data 15 and the first PC connector 13.
Is input to

In FIG. 8, the second file information is input to the first PC communication control section 71 as the monitor-first PC communication data 45 in the first communication data 15.

In FIG. 9, the second file information is transmitted from the first PC receiving means 72 via the monitor-first PC communication data 45.
The first PC receiving means 72 determines that the second file information is data to the first PC 2 and
The information is output to the first communication data generating means 80 as PC information 74. After receiving the second file information, the first communication data generating means 80 resends the request if a transmission confirmation signal indicating transmission failure has been added, otherwise the second file information is correctly transmitted. Therefore, it receives it, outputs a transmission confirmation signal indicating the request transmission success as the first PC-monitor communication data 46, and then, according to the communication data schedule information, sets the communication period 106 shown in FIG.
The transmission signal 116 indicating the second file write request, the first storage unit address information 125, and the second file data 128 are used as the first PC peripheral device transmission data 81 during the period of the file transfer 124 scheduled during the free time in , To the first bus data control means 79. The first bus data control means 79 converts the first PC peripheral device transmission data 81 indicating the second file write request into bus data, outputs the bus data via the first bus input 70, and confirms that the request has been received. Then, the reception confirmation signal 118 is output to the first communication data generation means 80 as the first PC peripheral device reception data 82.

In FIG. 8, the second file write request is sent to the first bus input 70, the first bus 68, the first storage unit bus input 6
4 to the first storage unit 61. First storage unit 6
1 stores a file name and file data according to a request.

Thus, the file transfer from the second PC 3 to the first PC 2 is completed.

[0182]

The effects obtained by the present invention will be briefly described as follows.

By providing the monitor with control means for displaying the display screen of the second PC on the display screen of the first PC in a window, the portability is excellent, but the display screen is small like a notebook PC. Devices can be easily connected to and displayed on a large-screen monitor device, and control communication data of input means such as a keyboard and a mouse connected to the first PC, and communication data such as file exchange between PCs. Is provided, communication data of input means such as a keyboard and a mouse of the first PC is transmitted to the second PC.
C is also effective, and it is possible to easily exchange files between the first PC and the second PC using a keyboard, a mouse, and the like on the window-displayed screen.

[Brief description of the drawings]

FIG. 1 is an external view showing a use form of a multi-input monitor device of the present invention.

FIG. 2 is a diagram showing a display example of a screen of the monitor device shown in FIG. 1;

FIG. 3 is a block diagram showing a use form of the multi-input monitor device of the present invention.

FIG. 4 is a block diagram showing one embodiment of the internal configuration of the monitor device shown in FIG. 3;

FIG. 5 is a block diagram showing an embodiment of the internal configuration of the display control means shown in FIG. 4;

FIG. 6 is a block diagram showing one embodiment of the internal configuration of the resolution / frequency conversion means shown in FIG. 5;

FIG. 7 is a block diagram showing one embodiment of the internal configuration of the communication control means shown in FIG. 6;

8 is a block diagram showing an embodiment of the internal configuration of the first PC shown in FIG.

FIG. 9 is a block diagram showing one embodiment of a first PC communication control unit shown in FIG. 8;

FIG. 10 is a block diagram showing an embodiment of an internal configuration of a second PC shown in FIG. 3;

FIG. 11 is a block diagram showing one embodiment of a second PC communication control unit shown in FIG. 10;

FIG. 12 is a diagram showing an embodiment of a communication data format according to the present invention.

FIG. 13 is a diagram showing one embodiment of a data flow in scheduling communication data according to the present invention.

FIG. 14 is a diagram showing one embodiment of scheduling of communication data in the present invention.

FIG. 15 is a diagram showing one embodiment of keyboard information and window information commands in communication data according to the present invention.

FIG. 16 is a diagram showing one embodiment of a file transfer command in communication data according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Monitor apparatus, 2 ... 1st PC, 3 ... 2nd PC, 4 ... Keyboard, 5 ... Mouse, 6 ... 1st PC display screen, 7 ... 2nd PC display screen, 8 ... Window display upper-left upper-right coordinate, 9 ... Window Display vertical size, 10: horizontal coordinate of upper left corner of window display, 11: horizontal size of window display, 12: mouse cursor, 13: first PC
Connector, 14: first display data, 15: first communication data, 16: second PC connector, 17: second display data,
18: second communication data, 19: first monitor connector, 2
0: second monitor connector, 21: communication control means, 22:
Resolution signal, 23 display position signal, 24 display control means, 25 liquid crystal display data, 26 liquid crystal display,
27 ... first data conversion means, 28 ... second data conversion means, 29 ... first parallel data, 30 ... first synchronization signal,
31: second parallel data, 32: resolution / frequency conversion means, 33: window display parallel data, 34: data switching means, 35: overlay display data, 36
... liquid crystal data conversion means, 37 ... resolution conversion means, 38 ...
Resolution converted synchronizing signal, 39: Resolution converted display data, 40: Write control means, 41: Write control signal, 42: Read control means, 43: Read control signal, 44: Window screen storage means, 45: Monitor-first 1PC communication data, 46: first PC-monitor communication data, 47: monitor-second PC communication data, 48: second P
C-monitor communication data, 49 communication data discriminating means, 5
0: communication data transfer destination information, 51: first communication data control means, 52: window position information, 55: second communication data control means, 56: window resolution information, 57: monitor device configuration information section, 58: monitor Device configuration information, 59 window information generation means, 60 first central control unit, 61 first storage unit, 62
... first central control unit bus output, 63 ... first central control unit bus input, 64 ... first storage unit bus output, 65 ... first storage unit bus input, 66 ... first keyboard information first bus output, 67
... first mouse information first bus output, 68 ... first bus, 69
... first bus output, 70 ... first bus input, 71 ... first PC
Communication control section, 72 first PC receiving means, 73 external configuration information, 74 first PC information, 75
First PC configuration information section, 76... First PC
Configuration information, 77: schedule control means, 78: communication data schedule information, 79: first bus data generation means, 80: first communication data generation means, 8
DESCRIPTION OF SYMBOLS 1 ... 1st PC peripheral equipment transmission data, 82 ... 1st PC peripheral equipment reception data, 83 ... 2nd central control part, 84 ... 2nd central control part bus output, 85 ... 2nd central control part bus input, 8
6 second storage unit, 87 second storage unit bus output, 88 second storage unit bus input, 89 second bus, 90 second bus output, 91 second bus input, 92 second PC communication Control unit,
93: second PC configuration information section, 94: second PC configuration information, 95: second communication data generating means, 96: second PC receiving means, 98: second PC
Received data, 99 ... second bus data generating means, 100 ...
Plus side communication data, 101 ... minus side communication data,
102: differential communication data, 103: first PC configuration data, 104: monitor configuration data, 105: second PC configuration data, 106: communication cycle, 107: communication cycle start information, 108: keyboard information, 109: mouse Information, 1
10: window display information, 111: idle time, 112
... acquisition signal, 113 ... keyboard address information, 114
... key data, 115 ... transmission confirmation information, 116 ... transmission signal, 117 ... second PC keyboard control address information, 1
18: reception confirmation information, 119: monitor device address information, 120: window display information, 121: second PC resolution control address information, 122: window resolution information, 123: file transfer period, 124: first storage unit address information, 125 ... first file data, 126 ... second storage unit address information, 127 ... second file data.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Shigeyuki Nishitani 1099 Ozenji Temple, Aso-ku, Kawasaki City, Kanagawa Prefecture Inside Hitachi, Ltd.System Development Laboratory (72) Inventor Hiroshi Kurihara 3300 Hayano, Mobara City, Chiba Prefecture Hitachi, Ltd. Within the Display Group (72) Inventor Tatsumi Mori 292 Yoshida-cho, Totsuka-ku, Yokohama-shi, Kanagawa Prefecture Digital Media System Division, Hitachi, Ltd. F-term (reference) 5B069 CA04 CA13 JA01 JA02 KA06 LA02

Claims (15)

[Claims] 1. A monitor device having a plurality of input interfaces and a display unit including display data, input means such as a keyboard and a mouse, and communication data such as file data, and display data and an input such as a keyboard and a mouse. An information processing apparatus having means and an interface including communication data such as file data, and comprising a plurality of PCs (personal computers) connected to the monitor device, wherein the monitor device is connected to a first interface. Control means for window-displaying the display screen of the PC connected to the remaining interfaces on the display screen of the PC, and a keyboard of the PC connected to the first interface;
Control means for enabling input means such as a mouse to be used on a PC connected to the remaining interface, and exchange of data between a PC connected to the first interface and a PC connected to the remaining interface An information processing apparatus characterized by including a communication control means. 2. The information processing apparatus according to claim 1, wherein the display unit of the monitor device is a liquid crystal display. 3. The information processing apparatus according to claim 1, wherein the display data is a low voltage differential (LVDS) signal. 4. The information processing apparatus according to claim 1, wherein the communication data is a USB (Universal Serial).
al Bus). 5. The information processing apparatus according to claim 1, wherein the display data and the communication data are included in one connector. 6. A monitor device having a plurality of input interfaces and a display unit including display data, input means such as a keyboard and a mouse, and communication data such as file data, and display data and an input such as a keyboard and a mouse. An information processing apparatus having a plurality of PCs (personal computers) connected to the monitor device and having an interface including communication means such as file data and file data, wherein the PC connected to the first interface is: Control means for window-displaying, on a display screen of a PC connected to the first interface, a display screen of a PC connected to the remaining interface; and a keyboard of the PC connected to the first interface To make input means such as mouse, mouse, etc. valid for PCs connected to the remaining interfaces Stage and an information processing apparatus characterized by comprising a communication control means for enabling the exchange of data between the PC connected to the PC and the rest of the interface connected to the interface of the first. 7. The information processing apparatus according to claim 6, wherein the display unit of the monitor device is a liquid crystal display. 8. The information processing apparatus according to claim 6, wherein the display data is a low voltage differential (LVDS) signal. 9. The information processing apparatus according to claim 6, wherein the communication data is a USB (Universal Serial).
al Bus). 10. The information processing apparatus according to claim 6, wherein the display data and the communication data are included in one connector. 11. A monitor device having a plurality of input interfaces and a display unit including display data, input means such as a keyboard and a mouse, and communication data such as file data, and a display device and an input device such as a keyboard and a mouse. Means and an interface including communication data such as file data, and a plurality of PCs (personal computers) connected to the monitor device, wherein the PC connected to the remaining interface is: Control means for window-displaying, on a display screen of a PC connected to the first interface, a display screen of a PC connected to the remaining interface; a keyboard of the PC connected to the first interface; A control to make input means such as a mouse effective even on a PC connected to the remaining interface. Means and an information processing apparatus characterized by comprising a communication control means for enabling the exchange of data between the PC connected to the PC and the rest of the interface connected to the interface of the first. 12. The information processing apparatus according to claim 11, wherein the display unit of the monitor device is a liquid crystal display. 13. The information processing apparatus according to claim 11, wherein the display data is a low voltage differential (LVDS) signal. 14. The information processing apparatus according to claim 11, wherein the communication data is a USB (Universal Serial).
al Bus). 15. The information processing apparatus according to claim 11, wherein the display data and the communication data are included in one connector.