JPH0729622U - Pointing device output switch - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a pointing device output switching device with good operability and reliability. A pointing device output switch of the present invention is a selection switch 13 for selecting one pointing device connection terminal 11, a plurality of pointing device output terminals 12, and the pointing device output terminal 12 connected to the pointing device connection terminal 11.
Have. Then, based on the selection signal from the selection switch 13, the pointing device output terminal 1
2 is connected to the pointing device connection terminal 11 by the switching unit 14.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a pointing device output switching device for adapting one pointing device to a plurality of control devices.

[0002]

[Prior art]

 Generally, personal computers are widely used as various control devices. A pointing device such as a mouse or a trackball is often used as an input device of this personal computer.

A pointing device is an input device that is connected to a pointing device connection terminal of a personal computer and used for various inputs. However, the personal computer had only one pointing device connection terminal, and only one pointing device could be connected to the personal computer. Therefore, when using multiple personal computers, multiple pointing devices are required. Therefore, in order to reduce the number of pointing devices required for operation, a pointing device changer having a mechanical changeover switch is usually used.

FIG. 5 is a circuit diagram showing a mechanical switching system of a conventional pointing device switching device.

Here, at each signal end of an output signal from a pointing device, for example, a mouse, the connected personal computer B is switched to the personal computer A by a switch using a mechanical contact.

[0006]

[Problems to be solved by the device]

 However, in the switching by the mechanical switch method as described above, for example, if there are 8 output signals from the mouse, these 8 signal lines are switched by the switch accompanied by the mechanical operation, so that 8 switches are required. And the switch connection may be poor. Therefore, there was a problem that the operability and reliability were not good.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a pointing device output switching device having good operability and reliability.

[0008]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides one pointing device connection terminal, a plurality of pointing device output terminals, a selection switch for selecting the pointing device output terminal connected to the pointing device connection terminal, and the selection. And a switching unit that connects the pointing device output terminal to the pointing device connection terminal based on a selection signal from the switch.

[0009]

[Action]

 According to the above configuration, the pointing device output switching device of the present invention selects one pointing device connection terminal, a plurality of pointing device output terminals, and the pointing device output terminal to be connected to the pointing device connection terminals. Have a switch. Then, based on the selection signal from the selection switch, the pointing device output terminal is connected to the pointing device connection terminal by the switching unit.

[0010]

【Example】

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

1A and 1B are an external perspective view and a block diagram of a pointing device output switching device when a mouse is used as a pointing device according to an embodiment of the present invention.

The pointing device output switcher 15 has one pointing device connection terminal 11 to which the mouse is connected and two pointing device output terminals 12 to which the personal computers A and B are respectively connected. . The pointing device connection terminal 11 is branched into two and connected in parallel to the two pointing device output terminals 12 via the IC 10 and IC 11 of the switching unit 14, respectively. That is, the ICs 10 and 11 are buffer ICs, each of which is composed of a buffer group. On the input side of the switching unit 14, the respective buffer groups are connected in parallel, and the output of the buffer group is of high impedance. Has become. This is equivalent to a mechanical switch with nothing connected. Then, the two sliding ends of the toggle switch as the selection switch 13 are connected to the selection terminals of the IC 10 and IC 11, respectively, and the buffer group of the IC connected to this switch is selected and connected to the mouse output terminal.

According to the above configuration, the signal input from the mouse flows into the IC 10 and the IC 11 of the switching unit 14 via the pointing device connection terminal 11. Then, it is switched by the toggle switch of the selection switch 13, and the buffer group of the IC 10 is selected. As a result, the signal is connected to the pointing device output terminal 12 on the personal computer A side, and the signal is input to the personal computer A via the pointing device output terminal 12.

As described above, according to the pointing device output switching device of the embodiment, since a plurality of computers on the desk can be operated by one mouse, it becomes possible to organize them into one mouse.

FIG. 2 is a block diagram of a system in which a plurality of operators using the pointing device output switching device as described above can operate their own computers and one common computer.

That is, there are four personal computer systems 21 to 24 to which a mouse is connected via a pointing device output switching device, and each of the pointing device output switching devices is connected to the pointing device input adapter 25. Be touched. The pointing device input adapter 25 is connected to the large display unit 27 via the computer 26.

According to such a configuration, it operates as follows.

First, in the system 21, it is assumed that the operator A operates the mouse A to use the personal computer. Next, when it is necessary to operate the large display unit 27 here, the operator A switches the selection switch of the pointing device output selector, and the output from the mouse A is input to the pointing device input adapter 25. To be done. Here, the pointing device input adapter 25 receives signals from the mice A to D and switches which mouse outputs a signal to the computer 26. That is, when the operator A operates the mouse A and the signal is received by the pointing device input adapter 25, the pointing device input adapter 25 outputs the pointing device output connected to the operated mouse A. The switch and the computer 26 are connected. As a result, the output from the mouse A operated by the operator A is input to the computer 26, and the screen displayed on the large display 27 is changed. As the pointing device input adapter, the one devised by the inventor of the present invention and disclosed by the same applicant as the present invention in a device entitled “Pointing Device Input Adapter” filed on the same day as the present invention is used. can do.

When such a pointing device input adapter is used, it becomes possible to use a mouse exclusive computer and a shared computer of a plurality of mice with one mouse.

Here, for reference, the pointing device input adapter will be described in detail.

FIG. 3 is a block diagram of the pointing device input adapter according to the embodiment.

The pointing device input unit 1 has pointing device connection terminals A1, A2, B1 and B2 for operating a plurality of, for example, four mice 12 to 15. Each terminal is a connector that receives a plug of D-sub9PIN or MIN IDIN 8PIN used in a normal mouse. Two terminals are connected to each of the input terminals of the data selectors IC1 and IC2 that form the switching unit 3.

The output terminals OUT1 and OUT2 of the data selectors IC1 and IC2 are commonly connected to a pointing device output terminal OUT which is an output terminal of the present adapter. Further, the selection terminals SELECT1 and SELECT2 are connected to the output terminal Q1 of the F / F circuit IC3 of the two flip-flop (F / F) circuits IC3 and IC4 forming the selection unit 2. The control terminal CONT1 of the other data selector IC1 is connected to the output terminal Q2 of the F / F circuit IC4, and the control terminal CONT2 of the other data selector IC2 is the inverted output terminal Q2 of the F / F circuit IC4. Connected to the bar.

Of the two input terminals a1 and b1 of the F / F circuit IC3, a1 is connected to SIGA1 and SIGB1, and b1 is connected to SIGA2 and SIGB2. Of the input terminals a2 and b2 of the F / F circuit IC4, a2 is connected to SIGA1 and SIGA2, and b2 is connected to SIGB1 and SIGB2.

Here, SIGA1, SIGA2, SIGB1, and SIGB2 are obtained by extracting a predetermined signal from the 9 or 8 signals from the terminals A1, A2, B1, and B2 of the pointing device input unit 1. (Shown as separate terminals in the figure for simplicity). As the signals SIGA1 to SIGB2, for example, a right click signal of a mouse is used in this embodiment. That is, by right-clicking any mouse, the ground is sent to the corresponding signal line SIGA1 to SIGB2.

Next, the operation of the pointing device input adapter of the present invention configured as above will be described.

The data selector IC1 is an IC configured to select an output of the pointing device connection terminal A1 or A2 and connect the output to the output terminal OUT1. This is performed according to the signal input to the selection terminal SELECT1. That is, when “H” is input to the selection terminal SELECT1, the data selector IC1 connects the output terminal OUT1 to the pointing device connection terminal A1 and when “L” is input, the pointing device connection is made. Connect to terminal A2.

The control terminal CONT1 receives a signal for controlling whether or not the terminal OUT1 is opened, and when “L” is input, the open state and “H” are input. If either of the pointing device connection terminals A1 or A2 is in the output state.

Similarly, the data selector IC2 is an IC configured to select the output of either the pointing device connection terminal B1 or B2 and connect the output to the output terminal OUT2. The selection is performed according to the signal input to the selection terminal SELECT2. That is, when “H” is input to the selection terminal SELECT 2, the data selector IC 2 connects the output terminal OUT 2 to the pointing device connection terminal B 1 and when “L” is input, the pointing device connection is performed. Connect to terminal B2.

The control terminal CONT2 receives a signal for controlling whether or not the output terminal OUT2 is in the open state. When “L” is input, the open state and “H” are input. If so, one of the pointing device connection terminals B1 and B2 is in the output state. That is, the control terminals CONT1 and CONT2 serve as selection signals for the data selectors IC1 and IC2 based on mutually inverted signals of Q and Q bar of the F / F circuit IC4.

Next, the operation of the pointing device input adapter of this embodiment will be described with reference to the time chart of FIG.

It is now assumed that the mouse 14 (connected to the pointing device connection terminal B1) is connected to the pointing device output terminal OUT at time T1. From this state, at time T2, click input from mouse 12 (connected to pointing device connection terminal A1), and then at time T3, click input from mouse 15 (connected to pointing device connection terminal B2) The change in the pointing device connection terminal connected to the pointing device output terminal OUT of the pointing device input adapter, that is, the change in the priority of the mouse will be described.

At time T1, since the pointing device connection terminal B1 is connected to the pointing device output terminal OUT of the pointing device input adapter, the selection terminal SELECT2 input of the data selector IC2 is “H” and the control terminal CONT2. The input is "H", the output terminal Q1 output of the F / F circuit IC3 is "H", and the output terminal Q2 output of the F / F circuit IC4 is "L".

Here, at time T2, when right-clicking is input from the mouse 12 connected to the pointing device connection terminal A1, the ground signal by clicking is input from the signal line SI GA1 to each of the F / F circuits IC3 and IC4. It is input to the terminals a1 and a2. In this case, the signal lines SIGB1 and SIGA1 are connected to the input terminal a1 of the F / F circuit IC3, and the state at time T1 corresponds to the ground signal input of the signal line SIGB1. The output of is unchanged. On the other hand, the output of the F / F circuit IC4 in which the signal lines SIGB1 and SIGA1 are connected to the separate input terminals a2 and b2 is inverted.

Therefore, the control terminal CONT1 input of the data selector IC1 changes from “L” to “H”, and the control terminal CONT2 input of the data selector IC2 changes from “H” to “L”. The selection terminals SELECT1 and SELECT2 inputs of the data selectors IC1 and IC2 remain "H". That is, since the control terminal CONT2 input is "L" and the selection terminal SELECT2 input is "H", the data selector I C2 selects the pointing device connection terminal B1 but the output is open, so that the pointing device output terminal OUT is Not connected. On the other hand, since the control terminal CONT1 input is "H" and the selection terminal SELECT1 input is "H", the pointing device connection terminal A1 is connected to the pointing device output terminal OUT. As a result, the mouse 12 is eventually connected to the pointing device output terminal OUT.

Next, when a right click is input from the mouse 15 connected to the pointing device connection terminal B2, a ground signal by clicking is input from the signal line SIGB2 to the input terminals b1 and b2 of the F / F circuits IC3 and IC4. Entered in. As a result, the outputs of the F / F circuits IC3 and IC4 are both inverted. Therefore, the control terminal CONT1 input of the data selector IC1 changes from "H" to "L" again, and the control terminal CONT2 input of the data selector IC2 changes from "L" to "H". The selection terminals SELECT1 input and SELECT2 input of the above-mentioned data selectors IC1 and IC2 change from "H" to "L". Therefore, the pointing device connection terminal B2 of the data selector IC2 is connected to the pointing device output terminal OUT. That is, the mouse 15 is connected to the pointing device output terminal OUT.

In the above embodiment, the pointing device output switching device is described as switching one mouse to two computers, but the number of computers to switch is not limited to two, and many more computers can be used. It goes without saying that the present invention is also applicable when a computer is connected.

Further, in the above embodiment, the case where the mouse is used as the pointing device has been described, but the present invention can be similarly applied to the case where another pointing device such as a trackball is used. is there.

[0039]

[Effect of device]

 As described above, the pointing device output switching device of the present invention uses a small and stable long stroke toggle switch as a switching selection switch, and the switching part switching is logically assembled to enable switching trigger pulse switching. Is provided with a reliable switch. That is, a logical switch equivalent to a 1-to-n mechanical switch is realized by utilizing the output high impedance control function of the buffer IC in the switching unit.

As described above, an accident such as a switch connection failure can be suppressed as much as possible, so that it becomes possible to switch the output of the pointing device with high operability and reliability.

In addition to the system described above, in a conference using a personal computer, a system in which a plurality of people use icons instead of a stick, or a game in which a plurality of people compete Can also be used without changing the personal computer and its operating program.

Further, the standard of the pointing device is unified, and there is an advantage that the connection can be made regardless of the model of the personal computer.

[Brief description of drawings]

1A and 1B are an external perspective view and a block configuration diagram of a pointing device output switching device when a mouse is used as a pointing device according to an embodiment of the present invention.

FIG. 2 is a configuration diagram of a system according to an embodiment of the present invention, in which a plurality of operators can operate their own dedicated computers and one common computer.

FIG. 3 is a block diagram illustrating a pointing device input adapter used in the embodiment of the present invention shown in FIG.

FIG. 4 is a time chart when the pointing device input adapter of FIG. 3 operates.

FIG. 5 is a circuit diagram showing a mechanical switching system of a conventional pointing device switching device.

[Explanation of symbols]

11 ... Pointing device connection terminal, 12 ... Pointing device output terminal, 13 ... Selection switch, 14
... switching unit, 15 ... pointing device output switching device.

Claims (1)

[Scope of utility model registration request] 1. A pointing device connection terminal, a plurality of pointing device output terminals, a selection switch for selecting the pointing device output terminal connected to the pointing device connection terminal, and a selection signal from the selection switch. And a switching unit for connecting the pointing device output terminal to the pointing device connection terminal, and a pointing device output switching device.