JPH05113837A - Input device control system - Google Patents

Abstract

PURPOSE:To recognize that an input device is detached or replaced after initialization by providing a detection part which detects the insertion and extraction of the plug of the cable connector of the input device into and from the receptacle of an input adapter. CONSTITUTION:When the plugs of the cable connectors of input devices 3-6 are inserted into the receptacles of the input adapter 2, one of the contacts that the receptacles are equipped with varies from a 1st potential to a 2nd potential. When the plug is extracted, on the other hand, one of the contacts that the receptacle is equipped with varies from the 2nd potential to the 1st potential. The insertion and extraction detection part 20 detects the insertion and extraction of the plug from the variation in signal level. When the plug is inserted into the receptacle, a connection detection part 5 decides what kind of the input devices 4-6 are connected according to which contact of each receptacle is at the low level.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a computer system for identifying and controlling various input devices connected to a computer system.

[0002]

2. Description of the Related Art In recent computer systems, input devices have been diversified. Conventionally, a keyboard was generally used as an input device of a computer system, but in addition, various input devices such as a touch panel device, a tablet, a mouse and a joystick have been put into practical use, and some or all of these input devices are used. There are not a few computer systems that have the function to connect to. In such a computer system, a multi-type input adapter for simultaneously connecting various input devices as described above is provided, the multi-type input adapter identifies the input device, and the input device is controlled based on the result. I am trying to do it.

FIG. 1 is a Japanese Patent Publication No. 3-6 as an example of a computer system equipped with such a variety of input adapters.
It is a block diagram which shows the structure of the system described in the invention called the "input device control system" disclosed by the 538 publication.

In FIG. 1, reference numeral 1 is a main body device, specifically, a computer main body or a display terminal. Reference numeral 2 is a multi-type input adapter, to which a keyboard 3 as an input device, a key file 54, an ID card reader 55, an OCR (optical character reading device) 56, etc. are connected.

The main unit 1 is equipped with a power-on detection circuit 7, a configuration identification section 8, a configuration table 9, an input control section 10 and the like. The multi-type input adapter 2 has port A1
1, input ports of port B12, port C13, and port D14, a connection detection unit 15, and ID response circuits 16 and 17 for outputting a preset ID are provided.

The above-described keyboard 3, key file 54, ID card reader 55, and OCR 56 are connected to the ports A11, B12, C13, and D14, respectively. In this conventional example, the port A11 among these input devices is used. A keyboard 3 and a key file 54 are fixedly connected to B12.
Various input devices can be connected to the other ports C13 and D14. In this conventional example, the ID card reader 5 is used.
5, OCR56 are connected respectively. The connection detector 15 has a function of notifying the main body device 1 of the IDs of the input devices connected to the ports C13 and D14.

The operation of such a conventional system is as follows.

When the power of the system is turned on, the power-on detection circuit 7 in the main unit 1 detects it and generates a reset signal. This reset signal causes the main unit 1
Each unit inside is reset and the initialization operation is executed.

When receiving a reset signal from the main body device 1, the multi-type input adapter 2 gives a reset signal to each input device. Then, the connection detector 15 checks the signals on both ports C13 and D14 to check whether or not the input devices are connected, and if they are connected, activates the ID response circuits 16 and 17 corresponding to both the input devices. Let command ATTNID
ID card reader 5 by sending the
5, Notify the main unit 1 of the OCR 56 ID. In this prior art example, the keyboard 3 and the key file 54 connected to the ports A11 and B12 each send their own command ATTNID to the main unit 1 if a reset signal is given to them. To notify.

The input control unit 10 of the main body device 1 sends each input device based on the correspondence information between the device address registered in advance in the configuration table 9 and the ID of each input device given from the connection detection unit 15. Perform polling and other input controls.

The ID of the input device is registered in the configuration table 9 by the command AT sent from the multi-type input adapter 2 to the configuration identification unit 8 as a part of the initialization operation when the power is turned on.
Based on TNID.

[0012]

In the conventional system having such a configuration, the input device is removed from the multi-type input adapter 2 or replaced with another port after the initialization process after power-on is completed. If this happens, it cannot be reported to the main unit. Therefore, the main unit recognizes that the input unit already disconnected from the multi-type input adapter is still connected or that the main unit recognizes that the input unit is connected to a certain port. There is a problem that processing is performed while the is connected.

The present invention has been made in view of the above circumstances, and even when the input device is detached or replaced after the initialization process performed after power-on, etc., The purpose is to provide a computer system that can recognize it.

[0014]

In the computer system of the present invention, a cable connector is prepared for each input device,
A first potential (eg, power supply potential) on the receptacle side
When a plug is inserted into the receptacle, one of the contacts of the receptacle turns to a second potential (for example, a set value potential) according to the type of the input device connected to the plug. Is configured. Then, on the input adapter side, when the contact of the receptacle is changed to the second potential and when it is released, the insertion / removal detection unit that determines that the plug is inserted into and removed from the receptacle, and the connection detection unit is in the state of each contact. And a connection detection unit for checking.

[0015]

In the computer system of the present invention, when the plug of the cable connector of the input device is inserted into the receptacle of the input adapter, one of the contacts provided in the receptacle switches from the first potential to the second potential. On the contrary, when the plug is removed, one of the contacts provided in the receptacle changes from the second potential to the first potential. The insertion / removal of the plug is detected by the insertion / removal detection unit by such signal level conversion. Further, when the plug is inserted into the receptacle, the connection detection unit determines what kind of input device is connected depending on which contact of each receptacle is at the low level.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings showing the embodiments thereof. In each of the following drawings, the same reference numerals as those in FIG. 1 referred to in the above description of the conventional example indicate the same or corresponding portions.

FIG. 2 is a block diagram showing a configuration example of a computer system according to the present invention.

In FIG. 2, reference numeral 1 is a main body device, specifically, a computer main body or a display terminal. Reference numeral 2 is a multi-type input adapter, and in this embodiment, a keyboard 3, a touch panel 4, a tablet 5, a mouse 6 and the like as input devices are connected.

The main unit 1 is equipped with a power-on detection circuit 7, a configuration identification section 8, a configuration table 9, an input control section 10 and the like. The multi-type input adapter 2 has port A1
1, the input ports of port B12, port C13, and port D14, the insertion / removal detection unit 20, the connection detection unit 15 for outputting a preset ID, and the ID response circuits 16, 17, 18, 19 and the like are provided. ing.

The above-mentioned keyboard 3, touch panel 4, tablet 5 and mouse 6 are connected to the respective ports A11, B12, C13 and D14, and the connection detecting section 15 uses the IDs of these input devices as the main unit 1 It has a function to notify.

FIG. 3 is a circuit diagram showing a configuration example of the insertion / removal detection unit 20. Here, only the configuration of the portion related to the port A11 is shown, but the same configuration is also applied to the other ports B12, C13, D14. Have

A receptacle 111 is attached to the port A11, and the receptacle 111 is provided with contacts C1 to C6 for identifying the input device. Of these contacts C1 to C6, the contacts C1 to C5 connected to the power supply potential via the pull-up resistor are connected to the respective inputs of the AND gate 21 having five inputs. The output of this AND gate 21 is a D-flip flop
It is directly input to the T input terminal of 22 and is inverted and input by the inverter to the T input terminal of the D-flip-flop 23. The Q outputs of both D-flip-flops 22 and 23 are given to both inputs of a 2-input OR gate 24, and the output of this OR gate 24 is an interrupt signal INT to the connection detecting section 15.

The contact C6 of the receptacle 111 is grounded.

Further, reference numeral 110 indicates a plug 110 of the cable on the input device side, which is a pin P1 for identifying the input device.
~ P6 is provided. Each of these pins P1 to P6 comes into contact with the contacts C1 to C6 provided on the receptacle 111 when the plug 110 is inserted into the receptacle 111 of the port A11. The pin P6 and any of the other pins P1 to P5 are connected according to the type of each input device, that is, the keyboard 3, the touch panel 4, the tablet 5, the mouse 6, and the like. Therefore, when the plug 110 is connected to the receptacle 111, one of the contacts C1 to C5 of the receptacle 111 is plug 110.
It will be electrically connected to the contact C6 via and will be grounded.

The contacts C1 to C5 of the receptacle 111 are connected to the data buffer 25, and the output of the data buffer 25 is given to the connection detector 15 and becomes the input device identification signal IS1.

The operation of the computer system of the present invention as described above is as follows.

When the power of the system is turned on, the power-on detection circuit 7 in the main unit 1 detects it and generates a reset signal. This reset signal causes the main unit 1
Each unit inside is reset and the initialization operation is executed.

The input control unit 10 of the main body device 1 operates on each input device based on the correspondence information between the device address registered in advance in the configuration table 9 and the ID of each input device given from the connection detection unit 15. Perform polling and other input controls.

The ID of the input device is registered in the configuration table 9 by the command AT sent from the multi-type input adapter 2 to the configuration identification unit 8 as a part of the initialization operation when the power is turned on.
Based on TNID.

When the multi-type input adapter 2 is given a reset signal from the main body device 1, it gives a reset signal to each input device. Then, the connection detector 15 receives the input device identification signals IS1, from the ports A11, B12, C13, D14.
Check IS2, IS3, IS4 to check if the input device is connected. If connected, activate the ID response circuit 16, 17, 18, 19 corresponding to each input device and execute the command ATTN.
By sending the ID to the main unit 1, the ID of each input device
Is notified to the main body device 1.

The above operation is similar to that of the conventional system described above.

Now, for example, it is assumed that after the initialization process after the power is turned on, the input device connected to the port A11 is removed and the plug 110 thereof is pulled out from the receptacle 111 of the port A11. In such a case, all the contacts C1 to C5 of the receptacle 111 have been at a low level until then any one of the contacts formed a short circuit with the contact C6 via the corresponding pin of the plug 110 and the pin P6. Become high level.
Therefore, the output of the AND gate 21 changes from low level to high level, the Q output of the D-flip-flop 22 becomes high level, and the output of the OR gate 24 becomes high level. In other words, the interrupt signal INT given from the insertion / removal detection unit 20 to the connection detection unit 15 becomes active (high level).

The connection detector 15 reads the input device identification signal IS1 from the port A11 when the interrupt signal INT given from the insertion / removal detector 20 becomes active.
In this case, the input device identification signal IS1 from the port A11 is at all high level, so that the plug 110 is unplugged from the receptacle 111 of the port A11, that is, the keyboard which is the input device connected to the port A11 until then. It recognizes that 3 is removed and notifies the main body device 1 of that fact.

After this, the receptacle of port A11
When the plug 110 of another input device is inserted and connected to 111, the output of the AND gate 21 changes to low level and the Q output of the D-flip-flop 23 becomes high level. As a result, the output of the OR gate 24 turns to the high level again,
The interrupt signal INT is generated from the connection detector 15. The connection detection unit 15 is provided with this interrupt signal INT so that the input device identification signal from each port A11, B12, C13, D14
Reread IS1, IS2, IS3, IS4 and port A of each
The type of the input device is recognized by identifying the low-level contact at 11, B12, C13, and D14, and the command ATTNID is sent to the main body device 1.

Although the number of ports to which the input device is connected is four in the above embodiment, the number of ports is not limited to four. Further, in the above-described embodiment, the number of contacts of the receptacle and the number of pins of the plug are respectively 6, but the number is not limited to this.

[0036]

As described above in detail, according to the computer system of the present invention, the insertion / removal detection unit is provided for detecting the plug of the cable connector of the input device both when the plug is inserted into the receptacle of the input adapter and when it is removed. Therefore, even when the input device is removed or replaced after the initialization is completed, the information indicating what kind of input device is connected is accurately given to the main body device.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a system described in an invention entitled “input device control method” disclosed in Japanese Patent Publication No. 3-6538 as an example of a conventional computer system.

FIG. 2 is a block diagram showing a configuration example of a computer system according to the present invention.

FIG. 3 is a circuit diagram showing a configuration example of an insertion / removal detection unit of the computer system according to the present invention.

[Explanation of symbols]

 1 main unit 2 multi-type input adapter 3 keyboard 4 touch panel 5 tablet 6 mouse 8 configuration identification unit 9 configuration table 11, 12, 13, 14 port 15 connection detection unit 20 insertion / extraction detection unit P1 to P6 pins C1 to C6 contacts

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] October 20, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be amended] Title of invention

[Correction method] Change

[Correction content]

Title: Input device control system

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 1

[Correction method] Change

[Correction content]

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0001

[Correction method] Change

[Correction content]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an input device control method for identifying and controlling various input devices connected to a computer system.
Regarding the expression .

[Procedure amendment 4]

[Document name to be amended] Statement

[Name of item to be corrected] 0003

[Correction method] Change

[Correction content]

FIG. 1 is a Japanese Patent Publication No. 3-653 as an example of an input device control system equipped with such a multi-type input adapter.
FIG. 9 is a block diagram showing a configuration of a system described in an invention entitled “Input device control method” disclosed in Japanese Patent Publication No. 8 (1994) -58242A;

[Procedure Amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction content]

When receiving a reset signal from the main body device 1, the multi-type input adapter 2 gives a reset signal to each input device. Then, the connection detector 15 checks the signals on both ports C13 and D14 to check whether or not the input devices are connected, and if they are connected, activates the ID response circuits 16 and 17 corresponding to both the input devices. Let command ATTNID
ID card reader 5 by sending the
5, Notify the main unit 1 of the OCR 56 ID. In this prior art example, the keyboard 3 and the key file 54 connected to the ports A11 and B12 each send their own command ATTN ID to the main unit 1 when a reset signal is given to them. Notify 1.

[Procedure correction 6]

[Document name to be amended] Statement

[Correction target item name] 0011

[Correction method] Change

[Correction content]

The registration of the ID of the input device in the configuration table 9 is performed by the command AT sent from the multi-type input adapter 2 to the configuration identification unit 8 as a part of the initialization operation when the power is turned on.
Based on TN ID .

[Procedure Amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0012

[Correction method] Change

[Correction content]

[0012]

In the conventional system having such a configuration, the input device is removed from the multi-type input adapter 2 or replaced with another port after the initialization process after power-on is completed. If this happens, it cannot be reported to the main unit. Therefore, the main unit recognizes that the input unit already disconnected from the multi-type input adapter is still connected or that the main unit recognizes that the input unit is connected to a certain port. There is a problem that the processing is performed while the is connected.

[Procedure Amendment 8]

[Document name to be amended] Statement

[Correction target item name] 0013

[Correction method] Change

[Correction content]

The present invention has been made in view of the above circumstances, and even when the input device is detached or replaced after the initialization process performed after power-on, etc., Input device control that can recognize it
The purpose is to provide a method .

[Procedure Amendment 9]

[Document name to be amended] Statement

[Correction target item name] 0014

[Correction method] Change

[Correction content]

[0014]

An input device control method according to the present invention
In the formula , a cable connector is prepared for each input device, a contact to which a first potential (for example, power supply potential) is applied is provided on the receptacle side, and is connected to the plug when the plug is inserted into the receptacle. One of the contacts of the receptacle is configured to switch to a second potential (for example, a set value potential) depending on the type of the input device. Then, on the input adapter side, when the contact of the receptacle is changed to the second potential and when it is released, the insertion / removal detection unit that determines that the plug is inserted into and removed from the receptacle, and the connection detection unit is in the state of each contact. And a connection detection unit for checking.

[Procedure Amendment 10]

[Document name to be amended] Statement

[Correction target item name] 0015

[Correction method] Change

[Correction content]

[0015]

In the input device control system of the present invention, when the plug of the cable connector of the input device is inserted into the receptacle of the input adapter, one of the contacts provided in the receptacle is at the first potential to the second potential. When the plug is removed, on the contrary, one of the contacts provided in the receptacle shifts from the second potential to the first potential. The insertion / removal of the plug is detected by the insertion / removal detection unit by such signal level conversion. Further, when the plug is inserted into the receptacle, the connection detection unit determines what kind of input device is connected depending on which contact of each receptacle is at the low level.

[Procedure Amendment 11]

[Document name to be amended] Statement

[Correction target item name] 0017

[Correction method] Change

[Correction content]

FIG. 2 is a block diagram showing a configuration example of an input device control system according to the present invention.

[Procedure Amendment 12]

[Document name to be amended] Statement

[Correction target item name] 0026

[Correction method] Change

[Correction content]

The operation of the input device control system of the present invention as described above is as follows.

[Procedure Amendment 13]

[Document name to be amended] Statement

[Name of item to be corrected] 0029

[Correction method] Change

[Correction content]

The ID of the input device is registered in the configuration table 9 by the command AT sent from the multi-type input adapter 2 to the configuration identification unit 8 as a part of the initialization operation when the power is turned on.
Based on TN ID .

[Procedure Amendment 14]

[Document name to be amended] Statement

[Name of item to be corrected] 0030

[Correction method] Change

[Correction content]

When the multi-type input adapter 2 is given a reset signal from the main body device 1, it gives a reset signal to each input device. Then, the connection detector 15 receives the input device identification signals IS1, from the ports A11, B12, C13, D14.
Check IS2, IS3, IS4 to check if the input device is connected. If connected, activate the ID response circuit 16, 17, 18, 19 corresponding to each input device and execute the command ATTN.
By sending the ID to the main unit 1,
Notify the main unit 1 of the ID.

[Procedure Amendment 15]

[Document name to be amended] Statement

[Name of item to be corrected] 0032

[Correction method] Change

[Correction content]

Now, for example, after the initialization process after the power is turned on, the input device connected to the port A11 is removed.
Therefore, it is assumed that the plug 110 is pulled out from the receptacle 111 of the port A11. In such a case, all the contacts C1 to C5 of the receptacle 111 have been at a low level until then any one of the contacts formed a short circuit with the contact C6 via the corresponding pin of the plug 110 and the pin P6. Become high level. Therefore, the output of the AND gate 21 changes from low level to high level, the Q output of the D-flip-flop 22 becomes high level, and the output of the OR gate 24 becomes high level. In other words, the interrupt signal INT given from the insertion / removal detection unit 20 to the connection detection unit 15 becomes active (high level).

[Procedure 16]

[Document name to be amended] Statement

[Correction target item name] 0034

[Correction method] Change

[Correction content]

After this, the receptacle of port A11
When the plug 110 of another input device is inserted and connected to 111, the output of the AND gate 21 changes to low level and the Q output of the D-flip-flop 23 becomes high level. As a result, the output of the OR gate 24 turns to the high level again,
The interrupt signal INT is generated from the connection detector 15. The connection detection unit 15 is provided with this interrupt signal INT so that the input device identification signal from each port A11, B12, C13, D14
Reread IS1, IS2, IS3, IS4 and port A of each
The type of the input device is recognized by identifying the low-level contact at 11, B12, C13, and D14, and the command ATTN ID is sent to the main unit 1.

[Procedure Amendment 17]

[Document name to be amended] Statement

[Correction target item name] 0036

[Correction method] Change

[Correction content]

[0036]

As described above in detail, the input device of the present invention
According to the control method , since the insertion / removal detection unit that detects when the plug of the cable connector of the input device is inserted into or removed from the receptacle of the input adapter is provided, the input device may be removed after the initialization is completed, or Even if the input device is replaced, information about what kind of input device is connected is accurately given to the main device.

[Procedure 18]

[Document name to be amended] Statement

[Name of item to be corrected] Figure 1

[Correction method] Change

[Correction content]

FIG. 1 is a block diagram showing a configuration of a system described in an invention titled “input device control system” disclosed in Japanese Patent Publication No. 3-6538 as an example of a conventional input device control system . is there.

[Procedure Amendment 19]

[Document name to be amended] Statement

[Name of item to be corrected] Figure 2

[Correction method] Change

[Correction content]

FIG. 2 is a block diagram showing a configuration example of an input device control system according to the present invention.

[Procedure amendment 20]

[Document name to be amended] Statement

[Name of item to be corrected] Figure 3

[Correction method] Change

[Correction content]

FIG. 3 is a circuit diagram showing a configuration example of an insertion / removal detection unit of an input device control system according to the present invention.

Continuation of front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location G06F 13/14 330 B 7230-5B

Claims (1)

[Claims] 1. A computer system comprising a plurality of types of input devices, an input adapter capable of connecting these input devices, and a main unit connected to the plurality of input devices via the input adapters. In the above, each of the input adapters has a plurality of receptacles each having a plurality of contacts at which the first potential is snow-imaged and one contact at which the second potential is connected, and each of the input devices is , A plurality of pins corresponding to each of the plurality of contacts to which the first electric potential of each of the receptacles is connected and a contact to which the second electric potential is applied, and of the plurality of pins corresponding to the type of the input device. A plug having one pin connected to a different one of the contacts, and the input adapter is provided with one of a plurality of contacts to which the first potential of each receptacle is connected; potential First detecting means for detecting a change to the first potential, second detecting means for detecting a change to the first potential again, and system reset, power-on or the first and second detecting means. At the time of the detection operation of, the presence or absence of the connection of each input device and the type of the input device are determined by reading which of the plurality of pins of each of the receptacles has the second potential, and the identification information is provided to the main device. A connection detection unit for sending out, the main body device, based on the identification information received from the input adapter, a configuration identification unit for creating a table showing the configuration of the input device connected to each receptacle,
A computer system characterized in that input control is performed according to the table.