JPH08320757A - Data transfer system - Google Patents

Abstract

PURPOSE: To provide the data transfer system which selectively controls plural computers differing in control system by a portable input device and makes a necessary display without complicated operation. CONSTITUTION: This system consists of the portable input device 1 which sends a coordinate signal and control signals, a reception part 2 which receives the coordinate signal, etc., the computers 3 and 4 which differ in control system, and an interface part (I/F) 5 arranged between the reception part 2 and computers 3 and 4; and the I/F 5 has signal system conversion parts 8 and 9 which adaptably convert the coordinate signal, etc., to the control systems of the computers 3 and 4, a power source state output part 10 which outputs a 1st power-ON signal to the conversion parts 8 and 9, and a priority level decision part 7 which determines the supply priority levels of the coordinate signal, etc., to the conversion parts 8 and 9, which send the 1st power-ON signal to the corresponding connected computers 3 and 4 and send 2nd power-ON signals from the computers 3 and 4 to the decision part 7. Then the decision part 7 supplies the coordinate signal, etc., to the conversion part 8 and 9 having outputted the 2nd power-ON signal according to the specific priority levels.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data transfer system, and more particularly, to selectively control a plurality of computers of different systems or independently based on a coordinate signal supplied from a portable input device. The present invention relates to a data transfer system in which an image with a position mark indicating the position of a portable input device is displayed on a display device having a configuration.

[0002]

2. Description of the Related Art Conventionally, a known data transfer system of this type includes a computer and a portable input device having a separate structure from the computer. The portable input device was obtained by operating a manual operation key. The coordinate signal is placed on infrared light and wirelessly transmitted to the computer side.
The display image of the display unit of the computer is controlled based on the coordinate signal extracted from the received infrared light, and this display image is changed according to the position locus of the portable input device, or the received red image. The coordinate signal extracted from the external light is processed as required, the return coordinate signal obtained at this time is placed on infrared light and wirelessly transmitted to the portable input device side, and the portable input device extracts from the received infrared light. It is known that the position (relative angle) of the portable input device with respect to the computer can be known based on the returned coordinate signal.

By the way, in any of the known data transfer systems, a computer and a portable input device have a one-to-one correspondence with each other. If the computer is changed to another computer with a different system, the portable input device also needs to be changed to one suitable for the other computer, and the same portable input device is used.
It is impossible to selectively control two or more computers having different control systems.

[0004]

In the known data transfer system described above, the computer corresponding to the portable input device is operated based on the coordinate signal and the control signal obtained by operating the manual operation keys of the portable input device. On the display,
Although a cursor indicating the position of the portable input device can be displayed together with the display image, as described above, since the portable input device and the computer have a one-to-one correspondence, the output from the portable input device is possible. By using coordinate signals and control signals that are generated, two or more computers, in particular, two or more computers having different control systems are selectively controlled, and a display image is displayed on the display section of those computers. Also, the cursor cannot be displayed. In the known data transfer system, in order to control the computer and display the display image and the cursor, a portable input device is individually prepared for each computer, and these individual portable input devices are used. Since it is necessary to generate coordinate signals from each device, there is a problem that the operation of the manual operation keys in the portable input device becomes complicated.

In the known data transfer system, as described above, based on the coordinate signal and the control signal obtained by operating the manual operation keys of the portable input device,
Even if the display image and the cursor can be displayed on the display unit of the computer, the display image and the cursor can be displayed only on the display unit of the computer corresponding to the portable input device. Problems other than the display part, for example, the above-mentioned display image and cursor display cannot be performed on an independently configured display unit with a magnifying screen, and there is a large use restriction when the cursor display is performed together with the display image. There is.

Further, in the known data transfer system, based on the coordinate signal and the control signal obtained by the operation of the manual operation keys of the portable input device, the display unit of the computer corresponding to this portable input device is Although a cursor indicating the position of the portable input device can be displayed together with the display image, the display image and the cursor can be displayed only on the display unit of the computer corresponding to the portable input device. The display image and the cursor cannot be selectively displayed on the display unit of the computer and / or the display unit having an independent structure, and not only the restrictions on use are great, but also various displays can be performed as necessary. There is a problem that you cannot do it.

The present invention solves these problems, and its first object is to make it possible to selectively control a plurality of computers having different control systems by using a portable input device, which is complicated. It is an object of the present invention to provide a data transfer system capable of performing a required display without requiring any operation.

A second object of the present invention is to enable the display of an image including a position mark on a display unit having an independent structure by using a portable input device, and to reduce data usage restrictions. To provide a system.

Further, a third object of the present invention is to enable the display of an image including a position mark on a display independently of a computer simultaneously or selectively by using a portable input device, and to restrict the use. It is an object of the present invention to provide a data transfer system that can reduce the number and simultaneously display on various displays.

[0010]

In order to achieve the first object, the present invention provides a portable input device for wirelessly transmitting a coordinate signal and a control signal, and a receiver for receiving the coordinate signal and the control signal. And a plurality of computers having different control systems and an interface unit connected between the receiving unit and the plurality of computers, the interface unit including a coordinate signal and a coordinate signal supplied from the receiving unit. A plurality of signal system conversion units for converting control signals into a format suitable for the control systems of the plurality of computers and outputting the same, and a power supply status output for outputting a first power-on signal to the plurality of signal system conversion units when the power supply is turned on. And a priority determination unit that determines the priority of supply of the coordinate signal and the control signal to the plurality of signal system conversion units, Serial plurality of signal systems conversion unit,
The first power-on signal is transferred to a correspondingly connected computer, and in response thereto, the second power-on signal supplied from the computer is transferred to the priority determination section, and the priority determination section is configured to A first means for supplying the coordinate signal and the control signal according to a predetermined priority order to the signal system conversion unit that has output the two power-on signals is provided.

Further, in order to achieve the second object,
The present invention comprises a portable input device that wirelessly transmits a coordinate signal and a control signal, a receiving unit that receives the coordinate signal and the control signal, and an independent display unit connected to the receiving unit. The device converts the coordinate signal supplied from the receiving unit into an image signal suitable for display,
An image signal conversion unit that generates an image signal in which a position mark indicating the position indicated by the coordinate signal is superimposed on the image signal, a mapping unit that performs mapping processing of the image signal based on the control signal, and the mapping unit. And a liquid crystal display unit for displaying the image signal subjected to the mapping process in (2).

Further, in order to achieve the third object, the present invention provides a portable input device for wirelessly transmitting a coordinate signal and a control signal, a receiving unit for receiving the coordinate signal and the control signal, and the receiving unit. A computer connected to the receiver and an independent display connected to the receiver, the computer converting the coordinate signal supplied from the receiver into a first image signal suitable for display. A first image signal converting unit; and a display unit for displaying the first image signal, wherein the display unit converts the coordinate signal supplied from the receiving unit into a second image signal suitable for display, and A second image signal conversion unit for generating an image signal in which a position mark indicating the position indicated by the coordinate signal is superimposed on the image signal, and the first image signal supplied from the display unit of the computer is signaled. A third image signal conversion unit for converting into a third image signal suitable for display on the display unit, a mapping unit for mapping the second image signal and the third image signal based on the control signal, and mapping by the mapping unit. A third liquid crystal display section for displaying the processed image signal;
It is equipped with means.

[0013]

According to the first means, the interface section is arranged between the receiving section for receiving the coordinate signal and the control signal output from the portable input device and the plurality of computers having different control systems. In this interface part,
The first power-on signal is converted into a plurality of signals by converting the coordinate signals and the control signals into a format suitable for the control system of a plurality of computers and outputting the same number of signal system converters as the number of computers. A power supply status output unit for outputting to the system conversion unit and a priority order determination unit that determines the priority order of supplying coordinate signals to the plurality of signal system conversion units are provided. Then, the plurality of signal system conversion units transfers the first power-on signal to the correspondingly connected computer, and in response to the first power-on signal, the powered-on computer sends the second power-on signal. The signal is transferred to the priority order determination unit via the corresponding signal system conversion unit, and the priority order determination unit outputs the second power-on signal to the signal system conversion unit according to a predetermined priority order. Is supplied to one signal system conversion unit, and the conversion operation for adapting the coordinate system and the control signal to the control system is executed in this one signal system conversion unit.

As described above, according to the first means, a plurality of computers having different control systems in the power-on state are predetermined using the coordinate signal and the control signal output from the portable input device. Since the control can be performed according to the priority order, a position mark indicating the position of the portable input device, for example, a cursor-displayed image can be displayed on the required image without requiring complicated operations. You can

According to the second means, a display unit having an independent structure is connected to the receiving unit for receiving the coordinate signal and the control signal output from the portable input device, and the display unit is connected to the display unit.
A coordinate signal is converted into an image signal suitable for display, and a position mark indicating the position of the portable input device with respect to the receiving unit indicated by the coordinate signal on the image signal, for example, an image signal in which a cursor is superimposed is generated. An image signal conversion unit, a mapping unit that performs mapping processing of the image signal based on the control signal, and a liquid crystal display unit that displays the mapping-processed image signal are provided. Then, on the liquid crystal display unit of the display, a position mark indicating the position of the portable input device, for example, an image in which a cursor is superimposed is displayed on the image signal obtained by converting the coordinate signal.

As described above, according to the second means, by using the coordinate signal and the control signal output from the portable input device, the display unit having an independent structure is changed according to the position of the portable input device. It becomes possible to display an image on which a position mark, for example, a cursor is superimposed, and it is possible to greatly reduce the restrictions on the use of the display.

Further, according to the third means, the computer and the independent display device are connected to the receiving unit for receiving the coordinate signal and the control signal output from the portable input device, and the coordinate system is connected to the computer. A first image signal conversion unit that converts the signal into a first image signal suitable for display, and a display unit that displays the first image signal are provided, and the image display has a second image signal suitable for displaying the coordinate signal. A second image signal conversion unit for generating an image signal in which a position mark representing the position of the portable input device with respect to the reception unit indicated by the coordinate signal on the image signal, for example, is superimposed on the image signal, and a computer is generated. A third image signal conversion unit for converting the first image signal supplied from the display unit into a third image signal suitable for display on the signal display unit, and mapping the second image signal and the third image signal based on the control signal. To process And mappings portion is provided with a liquid crystal display unit for displaying an image signal mapping process. Then, on the display unit of the computer, a position mark indicating the position of the portable input device, for example, an image in which a cursor is superimposed is displayed on the image signal obtained by converting the coordinate signal. Also on the liquid crystal display unit of the container, a position mark indicating the position of the portable input device, for example, an image in which a cursor is superimposed is displayed on the image signal obtained by converting the coordinate signal.

As described above, according to the third means, the coordinate signal and the control signal output from the portable input device are used for both the display section of the computer and the liquid crystal display section of the independent image display. , It becomes possible to display a position mark that changes according to the position of the portable input device, for example, an image on which a cursor is superimposed, which greatly reduces the restrictions on the use of the display device and enables various types of display. Not only can simultaneous display on the display, but also 2 on one display
It is possible to selectively display an image including a cursor supplied from one source.

[0019]

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

FIG. 1 is a block diagram showing a first embodiment of a data transfer system according to the present invention, in which coordinate signals and control signals of a portable input device are distributed to a plurality of computers having different control systems. It shows an example of selective supply according to the priority order.

As shown in FIG. 1, the data transfer system includes a portable input device 1 for wirelessly transmitting coordinate signals and control signals obtained by operating a manual operation key (not shown) on infrared rays (IR). A receiving unit 2 for receiving an infrared signal transmitted from the portable input device 1 and extracting a coordinate signal and a control signal; a first computer 3; and a second computer 4 having a control system different from that of the first computer 3. And an interface device (I / F) 5 for interfacing between the receiver 2 and the first computer 3 and the second computer 4. In this case, the first
The computer 3 and the second computer 4 each include a data processing unit 11 that separately processes an input coordinate signal and control signal to generate an image signal, and a display unit 12 that displays the image signal. In the data processing unit 11
Is a power-on state determination unit 13 that determines the power-on state of the interface device 5 based on the first power-on signal supplied from the interface device 5, and the input coordinate signal and control signal as coordinate signals and switch signals. , A signal separating unit 14 for separating the key code signal, and a first unit for the power-on state determining unit 13 when the first computer 3 is powered on.
When the power-on signal is supplied, the second power-state output unit 15 that generates the second power-on signal, the mouse data processing unit 16 that processes the coordinate signal and the switch signal, and the key code that processes the key code signal A processing unit 17; an image processing unit 18 that obtains an image signal by processing the processed coordinate signal, switch signal, and key code signal according to the image;
Video RAM (VRAM) for temporarily storing image signals
A control unit (CPU) 20 for controlling the overall operation is provided. Further, the interface device 5 is usually integrally formed with the receiving unit 2, and includes a signal output destination selecting unit 6 for selecting an output supply destination of the coordinate signal and the control signal, the first computer 3 and / or the first computer 3. 2 Based on the second power-on signal supplied from the computer 4, the priority determination unit 7 that determines the priority of the coordinate signal and the control signal output from the signal output destination selection unit 6, and the coordinate signal and the control signal 1) A first signal system conversion unit 8 for converting into a format suitable for the control system of the computer 3, for example, serial voltage conversion, and for adapting the coordinate signal and the control signal to the control system of the second computer 4. When the power of the second signal system conversion unit 9 for converting into a format, for example, serial-ADB mutual conversion, and the interface device 5 is turned on Includes a first power supply state output unit 10 for generating a first power-on signal, the control unit for controlling the operation of the whole including the receiving portion 2 and a (not shown).

In this case, the priority determination unit 7 in the interface device 5 sets the destinations of the coordinate signal and the control signal output from the signal output destination selection unit 6 according to a predetermined priority. First, the first computer When both the second power-on signal from the third computer 3 and the second power-on signal from the second computer 4 are supplied, for example, the first computer 3 is
If it was turned on before the computer 4,
The coordinate signal and the control signal from the signal output destination selection unit 6 are the first
It is preferentially supplied to the signal system conversion unit 8. Next, the second power-on signal from the first computer 3 or the second power-on signal
When only the second power-on signal from the computer 4 is supplied, the coordinate signal and the control signal from the signal output destination selection unit 6 are supplied to the first signal system conversion unit 8 or the second signal system conversion unit 9. Then, when neither the second power-on signal from the first computer 3 nor the second power-on signal from the second computer 4 is supplied,
The output of the coordinate signal and the control signal from the signal output destination selection unit 6 is stopped. In the priority order in the priority order determination unit 7, when both the second power-on signal from the first computer 3 and the second power-on signal from the second computer 4 are supplied, the order in which the power is turned on is followed. Instead of sending the coordinate signal and the control signal from the signal output destination selecting unit 6, the sending of the coordinate signal and the control signal from the signal output destination selecting unit 6 may be set to be stopped.

The data transfer system of the first embodiment having the above construction operates as follows.

When the interface device 5 and the receiving unit 2 are powered on, the first power status output unit 10 of the interface device 5 generates a first power-on signal, and the first power-on signal is generated.
The power-on signal is transferred to the first computer 3 via the first signal system converter 8 and to the second computer 4 via the second signal system converter 9, respectively. At this point, if only the first computer 3 is already turned on, or if the interface device 5 and the receiving unit 2 are turned on immediately after the power is turned on, the first computer 3 is transferred to the first computer 3. The power-on state determination unit 13 receives the 1 power-on signal, and the second power-state output unit 15 generates the second power-on signal in response to the reception.
The power-on signal is transferred to the interface device 5.
The interface device 5 supplies the transferred second power-on signal to the priority order determination unit 7 via the first signal system conversion unit 8, and the priority order determination unit 7 supplies the supplied second power-on signal.
In response to the power-on signal, switching connection is made so that the signal output from the signal output destination selection unit 6 is supplied only to the first signal system conversion unit 8 as described above.

Here, when the infrared transmitting section (not shown) of the portable input device 1 is directed to the receiving section 2 side and a manual operation key (not shown) is operated at a desired position of the portable input apparatus 1, the receiving section 2 An infrared transmission signal including a coordinate detection signal and a control signal required to detect the coordinate position (relative position) of the portable input device 1 with respect to the direction from the infrared transmission unit of the portable input device 1 to the reception unit 2. Sent. Receiver 2
When the infrared transmission signal is received, extracts the coordinate detection signal and the control signal included in the infrared transmission signal and supplies the coordinate signal and the control signal to the next interface device 5. At this time, in the interface device 5, as described above, the signal output destination selection unit 6 is the first signal system conversion unit 8
Since it is switched and connected, the supplied coordinate signal and control signal are transmitted and supplied to the first signal system conversion unit 8 through the signal output destination selection unit 6. The first signal system conversion unit 8 converts the supplied coordinate signal and control signal into a format suitable for the control system of the first computer, for example, serial voltage conversion, and the first computer 3
Transfer to. In the first computer 3, the signal separation unit 14 separates the supplied coordinate signal and control signal into a coordinate signal, a switch signal, and a key code signal, and the mouse data processing unit 16 uses the coordinate signal and the switch signal as mouse data. Performs signal processing, and also the key code processing unit 1
Reference numeral 7 performs signal processing using the key code signal as a key code. Next, the image processing unit 18 converts the processed coordinate signal, the switch signal, and the processed key code signal into image signals suitable for an image, and the image signal is converted into a video RAM.
19 to temporarily store. And the video RAM 19
When the image signal for one screen of the display unit 12 is stored in, the image signal is read from the video RAM 19 and displayed on the display unit 12. In this case, the display image on the display unit 12 is an image in which a position mark indicating the position of the portable input device 1, for example, a cursor is superimposed on the image obtained based on the coordinate signal, and the portable input device is displayed. When the position of 1 is changed, the position mark on the display screen, for example, the display position of the cursor is changed accordingly.

In the above description of the operation, the first computer 3 is operated when the interface device 5 and the receiver 2 are powered on.
Only when the power is already turned on, or immediately after the interface device 5 and the receiver 2 are turned on.
The operation when the computer 3 is powered on,
After that, when the second computer 4 is powered on and both the first computer 3 and the second computer 4 are powered on, the operation is as follows.
Since the power-on time of the second computer 4 is before the power-on time of the second computer 4, the priority determination unit 7 determines the priority order and the signal output destination selection unit 6 switches the signal transmission destination. There is no change in the state, and the same operation as described above is continuously executed.

If only the second computer 4 is already turned on when the interface device 5 and the receiving unit 2 are turned on, or immediately after the interface device 5 and the receiving unit 2 are turned on. 4 is turned on, the priority determination unit 7 performs the priority determination operation in place of the second signal system conversion unit 9, whereby the signal output destination selection unit 6 outputs the second signal.
The operation is slightly different from the above-mentioned operation in that it is switched and connected to the signal system conversion unit 9 side and an image is displayed on the display unit 12 of the second computer 4, but other operations are almost the same as the above-mentioned operation. is there. And during this operation, the first
When the computer 3 is powered on and both the first computer 3 and the second computer 4 are powered on, the operation when the power of the second computer 4 is on is the time of powering on of the first computer 3. Since the priority determination unit 7 determines the priority and the signal output destination selection unit 6 switches the signal transmission destinations, the first computer 3 is powered on. There is no difference from the previous operation, the first computer 3
The same operation as before the power was turned on is continuously executed.

Further, when the interface device 5 and the receiving unit 2 are powered on, the first computer 3 and the second computer 3
In the operation when both of the computers 4 are not powered on, the priority determination unit 7 does not determine the priority,
Since the output of the coordinate signal and the control signal is stopped in the signal output destination selection unit 6, it goes without saying that the display unit 12 of the first computer 3 and the display unit 12 of the second computer 4 are of course.
No image is displayed in.

As described above, according to this embodiment, the coordinate signal and the control signal output from the portable input device 1 are used,
The first computer 3 and the second computer 4 having different control systems are controlled according to a predetermined priority according to the power-on state, and the selected first computer 3
Alternatively, the display unit 12 of the second computer 4 can display an image including a position mark indicating the position of the portable input device 1, for example, a cursor. It does not require a complicated operation of the device 1.

Next, FIG. 2 is a block diagram showing a second embodiment of the data transfer system according to the present invention, in which a coordinate signal and a control signal from a portable input device are displayed on an independent display. It shows an example of supplying and displaying an image including a cursor.

As shown in FIG. 2, the data transfer system of this embodiment comprises a portable input device 1, a receiving section 2 and an independent display 21. In this case, the display 21 having an independent structure is usually integrated with the receiving unit 2, and the display 21 converts the input coordinate signal and control signal into a coordinate signal, a switch signal, and a key code signal. An image supplied to the virtual video RAM 26, a signal separation unit 22 for separating, a marker control unit 23 for drawing a cursor and a trajectory in an image signal supplied to the virtual video RAM (VRAM) 26 based on the coordinate signal. A screen control unit 24 that erases a cursor and a trajectory in a signal, and an image processing unit 25 that forms an image signal.
And a virtual video RAM 26 for temporarily storing image signals
And a mapping control unit 27 and a mapping processing unit 28 that perform processing such as coordinate enlargement processing, coordinate inversion processing, bright / dark inversion processing, and full-screen erasing on the image signal read from the virtual video RAM 26, and the image signal subjected to mapping processing A video RAM (VRAM) 29 for temporarily storing the image data, a liquid crystal display unit 30 for displaying an image signal read from the video RAM 29, and a control unit 31 for controlling the entire operation.

In FIG. 2, the same components as those shown in FIG. 1 are designated by the same reference numerals,
Detailed description of these components will be omitted.

The data transfer system of the second embodiment having the above construction operates as follows.

When the infrared transmitting section (not shown) of the portable input device 1 is directed to the receiving section 2 side and a manual operation key (not shown) is operated at a desired position of the portable input apparatus 1, the portable input apparatus 1 is portable. Coordinate position of input device 1 (relative position)
An infrared transmission signal including a coordinate detection signal and a control signal necessary for detecting the is transmitted from the infrared transmission section of the portable input device 1 to the reception section 2. When receiving the infrared transmission signal, the receiving unit 2 extracts the coordinate detection signal and the control signal included in the infrared transmission signal and supplies the coordinate signal and the control signal to the next independent display unit 21. Then, in the display 21, the supplied coordinate signal and control signal are separated into a coordinate signal, a switch signal, and a key code signal in the signal separating unit 22, and based on the separated coordinate signal, in the marker control unit 23. Virtual video R
The cursor and the locus are drawn on the image signal supplied to the AM 26, while the screen controller 24 erases the cursor and the locus drawn on the image signal supplied to the virtual video RAM 26. Next, the signal in which the cursor and the trajectory are drawn or erased is converted into an image signal in the image processing unit 25, and the converted image signal is temporarily stored in the virtual video RAM 26. Then, the image signal read from the virtual video RAM 26 is transferred to the mapping control unit 2 in the mapping processing unit 28.
Under the control of 7, the coordinate enlargement process, the coordinate inversion process, the light / dark inversion process, the entire screen erasing process, and the like are performed, and the processed image signal is temporarily stored in the video RAM 29. Video R
The image signal stored in the AM 29 is appropriately read and displayed on the liquid crystal display unit 30. In this case, the display image of the liquid crystal display unit 30 is an image in which a position mark indicating the position of the portable input device 1, for example, a cursor is superimposed on the image obtained based on the coordinate signal, By changing the position of the input device 1, the position mark on the display screen, for example, the display position of the cursor is changed.

As described above, according to this embodiment, the coordinate signal and the control signal output from the portable input device 1 are used,
It becomes possible to display a position mark indicating the position of the portable input device 1, for example, an image including a cursor, on the liquid crystal display unit 30 of the display 21 having an independent structure, which greatly restricts the use of the display. Can be reduced.

Next, FIG. 3 is a block diagram showing a third embodiment of the data transfer system according to the present invention, in which the coordinate signal and the control signal from the portable input device are independent of the computer. And an image including a cursor is displayed on the display unit of the computer and / or the liquid crystal display unit of the display unit.

As shown in FIG. 3, the data transfer system of this embodiment comprises a portable input device 1, a receiver 2, a computer 3 ', and an independent display 21'. The receiver 2 is usually integrally formed with an independent display 21 '. In this case, the computer 3 '
At least the signal separation unit 14 and the mouse data processing unit 1
6, a key code processing unit 17, an image processing unit 18, a video RAM 19, and a display unit 12. Also,
The display 21 ′ having an independent configuration includes a signal separation unit 22, a marker control unit 23, a screen control unit 24, an image processing unit 25, a virtual video RAM 26, and a mapping control unit 2.
7, a mapping processing unit 28, a video RAM 29,
A liquid crystal display unit 30, a control unit 31, a data conversion unit 32 for converting an image signal supplied from the display unit 12 of the computer 3 ′ into an image signal of a format suitable for displaying on the display unit 21 ′, and a format Second virtual video RAM (VRAM) 3 for temporarily storing the converted image signal
3 is provided.

In FIG. 3, the same components as those shown in FIGS. 1 and 2 are designated by the same reference numerals, and the detailed description of the components will be omitted.

The data transfer system of this embodiment having the above-mentioned configuration operates as follows.

When the infrared transmitting unit (not shown) of the portable input device 1 is directed to the receiving unit 2 side and a manual operation key (not shown) is operated at a desired position of the portable input device 1, the portable input device 1 is portable. Coordinate position of input device 1 (relative position)
An infrared transmission signal including a coordinate detection signal and a control signal necessary for detecting the is transmitted from the infrared transmission section of the portable input device 1 to the reception section 2. When receiving the infrared transmission signal, the receiving unit 2 extracts the coordinate detection signal and the control signal included in the infrared transmission signal, and supplies the coordinate signal and the control signal to the computer 3 ′ and the independent display 21 ′.

In this case, in the computer 3 ', the signal separation unit 14 separates the supplied coordinate signal and control signal into a coordinate signal, a switch signal and a key code signal, and the mouse data processing unit 16 receives the coordinate signal and the switch signal. As the mouse data, the key code processing unit 17 performs the signal processing using the key code signal as the key code, and the image processing unit 18 processes the processed coordinate signal and the switch signal and the processed key code signal, respectively. It is converted into an image signal suitable for an image, and this image signal is converted into the video RAM 19
To be temporarily stored in. Next, the image signal stored in the video RAM 19 is read at an appropriate time point, displayed on the display unit 12, and transferred to the independent display 21 'side. At this time, the display image obtained on the display unit 12 becomes an image in which a position mark indicating the position of the portable input device 1, for example, a cursor is superimposed on the image obtained based on the coordinate signal, If the position of the input device 1 is changed, the position mark on the display screen is changed accordingly.
For example, the display position of the cursor will change.

Further, in the display 21 'having an independent structure,
The signal separation unit 22 receives the supplied coordinate signal and control signal as
The marker control unit 23 separates the coordinate signal, the switch signal, and the key code signal based on the separated coordinate signal.
The cursor and the trajectory are drawn on the image signal supplied to the virtual video RAM 26, and the screen control unit 24 erases the cursor and the trajectory drawn on the image signal supplied to the virtual video RAM 26. Next, the image processing unit 2
5 converts the drawn or erased signal of the cursor and the locus into an image signal, and the virtual video RAM 26 temporarily stores the converted image signal. On the other hand, the data conversion unit 32 converts the image signal supplied from the display unit 12 of the computer 3 ′ into an image signal of a format suitable for displaying on the liquid crystal display unit 30 of the display unit 21 ′, and the second virtual video RA
M33 temporarily stores the format-converted image signal. Subsequently, the mapping processing unit 28 makes the image signal read from the virtual video RAM 26 valid or controls the second virtual video R under the control of the mapping control unit 27.
Whether the image signal read from the AM 33 is valid or both the image signals read from the virtual video RAM 26 and the second virtual video RAM 33 are valid,
A selection is made whether to invalidate both the image signals read from the virtual video RAM 26 and the second virtual video RAM 33, and
Processing such as coordinate enlargement processing, coordinate reversal processing, bright / dark reversal processing, and full screen deletion is performed. The video RAM 29 temporarily stores the image signal selected and processed by the mapping processing unit 28,
The image signal stored in the video RAM 29 is read out at an appropriate time and displayed on the liquid crystal display unit 30. At this time, the display image of the liquid crystal display unit 30 becomes an image in which a position mark indicating the position of the portable input device 1, for example, a cursor is superimposed on the image obtained based on the coordinate signal. When the position of the device 1 is changed, the position mark on the display screen, for example, the display position of the cursor is changed accordingly.

As described above, according to this embodiment, the coordinate signal and the control signal output from the portable input device 1 are used,
It becomes possible to display a position mark indicating the position of the portable input device 1, for example, an image including a cursor, on the display unit 12 of the computer 3 ′ and / or the liquid crystal display unit 30 of the independent display 21. , It is possible to drastically reduce the restrictions on the display, and to display images including the cursor on various displays simultaneously.
It is possible to selectively display an image including cursors supplied from two sources on one display.

Next, FIG. 4 is a block diagram showing a fourth embodiment of the data transfer system according to the present invention, in which the coordinate system and the control signal from the portable input device are different in the control system. It is an example in which an image including a cursor is displayed on each of the display unit of the selected computer and the liquid crystal display unit of the display unit by supplying each to a plurality of computers and an independent display unit.

As shown in FIG. 4, the data transfer system of the present embodiment has a portable input device 1, a receiver 2, a first computer 3, a second computer 4, an interface device 5, and an independent device. The display unit 21 'has a configuration, and the receiving unit 2 and the interface device 5 are usually integrated with the display unit 21' having an independent configuration. Here, the portable input device 1, the receiving unit 2, and the
The first computer 3, the second computer 4 and the interface device 5 are all the portable input device 1, the receiver 2, the first computer 3, the second computer 4 and the interface in the first embodiment shown in FIG. The device 5 has the same configuration as that of the device 5. In FIG. 4, the same components as those shown in FIG. 1 are designated by the same reference numerals, and detailed description of the configurations of these components will be omitted. In addition, the display 21 'having an independent structure in the present embodiment.
Has almost the same configuration as the independent display 21 'in the third embodiment shown in FIG. 3, and in FIG. 4 the same as the same components shown in FIG. Reference numerals are given and detailed description of the configuration of these components is omitted.

Regarding the configuration of the independent display 21 ', between the present embodiment and the third embodiment shown in FIG. 3, regarding the image signal supplied to the data conversion unit 32,
In the third embodiment, the image signal from the computer 3'is supplied, whereas in the fourth embodiment, the image signal from the first computer 3 or the second computer 4 is selectively supplied. However, there is no difference between the present embodiment and the third embodiment shown in FIG. 3 with respect to the configuration of the independent display 21 'itself. I haven't.

In the data transfer system according to the fourth embodiment having the above-mentioned configuration, the operation executed in the component part including the portable input device 1, the receiving unit 2, the first computer 3, the second computer 4 and the interface device 5. Is an operation executed in the component part including the portable input device 1, the receiving unit 2, the first computer 3, the second computer 4 and the interface device 5 in the first embodiment shown in FIG. Operations that are substantially the same and that are executed in the component portion including the portable input device 1, the receiving unit 2, and the independent display 21 'are the sources of the image signals supplied to the data processing unit 32. Is slightly different from that of the portable input device 1, the receiver 2 and the independent display 21 'in the third embodiment shown in FIG. It is substantially the same operation as performed in the component parts made. Therefore, further detailed description of the operation of the data transfer system of the fourth embodiment will be omitted.

As described above, according to the present embodiment, in addition to the effect obtained in the first embodiment already described, the third embodiment already described.
It is possible to exert the effects obtained in the above embodiment together.

Next, FIG. 5 is a block diagram showing a fifth embodiment of the data transfer system according to the present invention, in which the coordinate system and the control signal from the portable input device are different in the control system. An example in which a control signal from a portable input device is supplied to each of a plurality of computers to an independently configured display unit to display an image including a cursor on the display unit of the selected computer and the liquid crystal display unit of the display unit Is.

As shown in FIG. 5, the data transfer system of the present embodiment has a portable input device 1, a receiver 2, a first computer 3, a second computer 4, an interface device 5, and an independent device. The display unit 21 ″ has a configuration, and the receiving unit 2 and the interface device 5 are usually integrated with a display unit 21 ′ having an independent configuration.

In this case, the portable input device 1, the receiving section 2, the first computer 3, the second computer 4 and the interface device 5 in this embodiment are all the same as those in the first embodiment shown in FIG. The portable input device 1, the receiving unit 2, the first computer 3, the second computer 4, and the interface device 5 have the same configuration. In addition, the independent display 21 ′ in this embodiment includes at least the signal separation unit 22, the mapping control unit 27,
The mapping processing unit 28, the video RAM 29, the liquid crystal display unit 30, the control unit 31, the data conversion unit 32, and the second
The virtual video RAM 33 is provided, and in FIG. 5, the same components as those shown in FIGS. 1, 3, and 4 are designated by the same reference numerals, and a detailed description of the configuration of these components will be given. Omit it.

In the data transfer system of the fifth embodiment relating to the above-mentioned configuration, in the component portion including the portable input device 1, the receiving unit 2, the first computer 3, the second computer 4 and the interface device 5 in this embodiment The operation to be executed is executed in the component part including the portable input device 1, the receiving unit 2, the first computer 3, the second computer 4 and the interface device 5 in the first embodiment shown in FIG. 1 already described. Operation is substantially the same. Further, the operation executed in the component portion including the portable input device 1, the receiving unit 2, and the independent display 21 ″ in the present embodiment is the portable type in the third embodiment already shown in FIG. Among the operations executed in the component part including the input device 1, the receiving part 2, and the independent display 21 ′, in each of the component parts of the marker processing part 23, the screen control part 24, the image processing part 25 and the virtual RAM 26. Since the operation is substantially the same as the operation executed in the third embodiment shown in FIG. 3 except the operation executed, the operation of the data transfer system of the fifth embodiment will be described in more detail. The description is omitted.

As described above, according to this embodiment, in addition to the effect obtained in the first embodiment described above, the image signal supplied to the display unit 12 of the first computer 3 or the second computer 4 is It is possible to selectively display on the liquid crystal display unit 30 of the display 21 ″ having an independent structure, and it is possible to reduce restrictions on use of the display.

Next, FIG. 6 is a schematic block diagram showing an example of a state when the data transfer system according to the present invention is used, and is a display 2 having an independent configuration in the second to fifth embodiments.
1 illustrates an example in which an image displayed on the liquid crystal display unit 30 of 1, 21′21 ″ is projected on an enlarged screen.

As shown in FIG. 6, an independent display 2 is provided.
A reflector plate 34 is provided so as to face the liquid crystal display unit 30 of 1, 21′21 ″, and has an independent structure.
A magnifying screen 35 that receives the reflected light from the reflection plate 34 is provided at a position apart from 1 ". In FIG. 6, the same components as those shown in FIGS. , And description of the configuration of other components is omitted.

According to this structure, the display 2 having an independent structure is used.
The image including the cursor displayed on the liquid crystal display unit 30 of 1, 21′21 ″ is displayed on the magnifying screen 3 via the reflection plate 34.
5, the operator can see the projected image of the magnified screen 35, in particular, the projected position of the cursor in the projected image, and the operator can detect the light receiving unit 2 of the portable input device 1.
The relative position with respect to can be changed appropriately.

In the above description of the first, fourth and fifth embodiments, an example using two computers (first and second computers 3 and 4) having different control systems is given. However, the number of computers having different control systems that can be used in the present invention is not limited to two, and three or more computers having different control systems can be used. May be. However, when the number of computers having different control systems is three or more, the configuration of the interface device 5 is changed according to the number, and the priority order in the priority order determination unit 7 is separately set. Must be set.

[0058]

As described above in detail, according to the invention described in claim 1, the control system in the power-on state is changed by using the coordinate signal and the control signal output from the portable input device 1. Since the plurality of computers 3 and 4 can be controlled in accordance with a predetermined priority order, a position indicating the position of the portable input device 1 can be displayed on a desired image without requiring a complicated operation. There is an effect that a mark, for example, a cursor-displayed image can be displayed.

According to the second aspect of the invention, the coordinate input signal and the control signal output from the portable input device 1 are used to cause the liquid crystal display section 30 of the independent display 21 to display the portable input device. It is possible to display a position mark that changes depending on the position of 1, for example, an image on which a cursor is superimposed, and it is possible to significantly reduce restrictions on use of the display device.

Further, according to the invention of claim 3,
By using the coordinate signal and the control signal output from the portable input device 1, the position of the portable input device 1 is displayed on both the display unit 12 of the computer 3 ′ and the liquid crystal display unit 30 of the image display 21 ′ having an independent configuration. A position mark that changes accordingly, for example,
It is possible to display an image with a cursor superimposed on it, which greatly reduces the restrictions on the use of the display unit and allows simultaneous display on various display units. In addition, it is possible to selectively display an image including a cursor supplied from two sources.

[Brief description of drawings]

FIG. 1 is a block diagram showing a first embodiment of a data transfer system according to the present invention.

FIG. 2 is a block diagram showing a second embodiment of the data transfer system according to the present invention.

FIG. 3 is a block diagram showing a third embodiment of the data transfer system according to the present invention.

FIG. 4 is a block diagram showing a fourth embodiment of the data transfer system according to the present invention.

FIG. 5 is a block diagram showing a fifth embodiment of the data transfer system according to the present invention.

FIG. 6 is a schematic configuration diagram showing an example of a state when the data transfer system according to the present invention is used.

[Explanation of symbols]

 1 Portable Input Device 2 Receiver 3 First Computer 3'Computer 4 Second Computer 5 Interface Device (I / F) 6 Signal Output Destination Selector 7 Priority Judgment Unit 8 First Signal Converter (Serial Voltage Converter) 9 2nd signal conversion part (serial-ADB voltage conversion part) 10 1st power-on state output part 11 Data processing part 12 Display part 13 Power-on state determination part 14, 22 Signal separation part 15 2nd power-on state output part 16 Mouse data processing unit 17 Key code processing unit 18, 25 Image processing unit 19, 29 Video RAM (VRAM) 20, 31 Control unit (CPU) 21, 21 ', 21 "Display 23 Marker control unit 24 Screen control unit 26 Virtual Video RAM (VRAM) 27 Mapping control unit 28 Mapping processing unit 30 Liquid crystal display unit 32 Data Section 33 second virtual video RAM (VRAM) 34 reflector 35 screen

Claims (9)

[Claims] 1. A portable input device for wirelessly transmitting a coordinate signal and a control signal, a receiver for receiving the coordinate signal and the control signal, a plurality of computers having different control systems, the receiver and the plurality of computers. An interface unit connected to and arranged with the computer, the interface unit converting the coordinate signal and the control signal supplied from the receiving unit into a format suitable for the control system of the plurality of computers, and outputting the converted signal. A plurality of signal system converters, a power state output unit that outputs a first power-on signal to the plurality of signal system converters when the power is turned on, and a coordinate signal and a control signal to the plurality of signal system converters. A priority order determination unit that determines a supply priority order, wherein the plurality of signal system conversion units include the first
Transfer the power-on signal to the corresponding connected computer,
In response to this, the second power-on signal supplied from the computer is transferred to the priority determination unit, and the priority determination unit sends a predetermined signal to the signal system conversion unit that has output the second power-on signal. A data transfer system, wherein the coordinate signal and the control signal are supplied in accordance with a priority order. 2. A portable input device for wirelessly transmitting a coordinate signal and a control signal, a receiver for receiving the coordinate signal and the control signal, and an independent display connected to the receiver, The display unit converts the coordinate signal supplied from the receiving unit into an image signal suitable for display, and also generates an image signal in which a position mark indicating the position indicated by the coordinate signal is superimposed on the image signal. A data transfer system comprising: an image signal conversion unit, a mapping unit for mapping the image signal based on the control signal, and a liquid crystal display unit for displaying the image signal subjected to the mapping process by the mapping unit. . 3. A portable input device for wirelessly transmitting a coordinate signal and a control signal, a receiver for receiving the coordinate signal and the control signal, a computer connected to the receiver, and a receiver connected to the receiver. The display device has an independent structure, and the computer displays the first image signal, and a first image signal conversion unit that converts the coordinate signal supplied from the reception unit into a first image signal suitable for display. A display unit, the display unit converts a coordinate signal supplied from the receiving unit into a second image signal suitable for display, and a position mark indicating a position indicated by the coordinate signal on the image signal. A second image signal conversion section for generating an image signal in which the above is superimposed, and a third image for converting the first image signal supplied from the display section of the computer into a third image signal suitable for display on the signal display section A signal conversion unit, a mapping unit that performs mapping processing of the second image signal and the third image signal based on the control signal, and a liquid crystal display unit that displays the image signal that is mapping processed by the mapping unit. Characteristic data transfer system. 4. The computer comprises a plurality of computers having different control systems, an interface unit is connected and arranged between the receiving unit and the plurality of computers, and a third image signal converting unit of the display unit. A first display from any one of the plurality of computers.
4. The image signal is selectively supplied, according to claim 3.
Data transfer system described in. 5. The computer comprises a plurality of computers having different control systems, an interface unit is connected and arranged between the receiving unit and the plurality of computers, and a third image signal converting unit of the display unit. A first display from any one of the plurality of computers.
The image signal is selectively supplied, and the third image signal obtained by the third image signal conversion unit is subjected to mapping processing by the mapping unit and then displayed on the liquid crystal display unit. The described data transfer system. 6. The interface unit converts a coordinate signal supplied from the receiving unit into a format suitable for a control system of the plurality of computers and outputs the plurality of signal system converting units, and a first signal system converting unit when the power is turned on. The power supply state output unit that outputs a power-on signal to the plurality of signal system conversion units, and a priority determination unit that determines the priority of supply of the coordinate signals to the plurality of signal system conversion units, and the plurality of signals The system conversion unit transfers the first power-on signal to a correspondingly connected computer, and in response thereto, transfers a second power-on signal supplied from the computer to the priority determination unit to perform the priority determination. The unit supplies the coordinate signal according to a predetermined priority to the signal system conversion unit that has output the second power-on signal. The data transfer system according to any one of claims 4 to 5. 7. The data transfer system according to claim 2, wherein the position mark is a cursor. 8. The data transfer system according to claim 2, wherein the display image of the liquid crystal display unit is projected on an enlarged screen. 9. The data transfer system according to claim 1, wherein the number of the plurality of computers and the number of the plurality of signal system conversion units are two, respectively.