JPH08286827A - Data input device - Google Patents

Abstract

PURPOSE: To provide a data input device conducting data processing depending on the discrimination of a type of a mouse by a personal computer when the mouse is connected to the personal computer. CONSTITUTION: A mouse 2 or 3 having two or three operation buttons is connected to a personal computer 1 and data in 3-byte representing a coordinate are fed to the personal computer 1 when the mouse 2(3) is connected. When the mouse 3 having three operation buttons is connected, additional data in 1-byte representing the operating state of the 3rd operation button are fed to the personal computer 1 in succession to the data in 3-byte representing the coordinate, and the personal computer 1 discriminates the type of the mouse 2 or 3 based on the presence of the additional data in 1-byte and responds to the data in 3-byte representing the coordinate or the data in 3-byte representing the coordinate and the additional data in 1-byte respectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data input device, and more particularly to a main control device when two kinds of auxiliary devices having two or three operation buttons are selectively connected to the main control device. Relates to a data input device capable of determining the type of an attached device connected based on data indicating an input coordinate position supplied from the attached device side and responding to supply data of any type of attached device.

[0002]

2. Description of the Related Art Conventionally, in a personal computer (personal computer) which is a main control unit, a mouse which is an auxiliary unit is connected and it is customary to supply coordinate input data designated by the operation of the mouse to the personal computer. There is. In this case, the mouse connected to the computer is usually
The one having two operation buttons (hereinafter, referred to as a two-button mouse) is used recently, but the one having three operation buttons (hereinafter, referred to as a three-button mouse) is also used. There is.

In this case, when a two-button mouse is connected to the personal computer, coordinate input data of a predetermined format is supplied from the two-button mouse side to the personal computer side based on the operation of the two-button mouse. Data is processed by the built-in application software.

FIG. 4 is an explanatory diagram showing an example of a known data format output from the 2-button mouse when the 2-button mouse is connected to the personal computer.

As shown in FIG. 4, the data format output from the two-button mouse has a first byte, a second byte, and a third byte. Each of the first to third bytes has a 7-bit configuration ( Actually, it has an 8-bit structure consisting of 7 bits to 0 bits, but since the 7th bit among them is not used, it is substantially a 7-bit structure.)
It has become. Then, in the first byte, the 6th bit (start bit) is always "1",
The 5th bit is "1" when the left button of the 2 button is operated, "0" when it is not operated, and the 4th bit is "1" when the right button of the 2 button is operated and "0" when it is not operated. , The 3rd and 2nd bits are X
Data X ₆ and X ₇ indicate coordinate positions in the axial direction, and the 1st and 0th bits are data Y ₆ and Y ₇ indicating coordinate positions in the Y axis direction. In the second byte, the sixth bit (the start bit) is always set to "0", the data X _5, X ₄ 5 bits to 0-th bit subsequent indicating the coordinate position of the X-axis direction, X ₃ , X ₂ , X ₁ , X
It is ₀ . Further, in the third byte, the sixth bit (the start bit) is always set to "0", data Y _5, Y ₄ 5 bits to 0-th bit subsequent to indicating the coordinate position of the X-axis direction, Y ₃ , Y ₂ , Y ₁ , and Y ₀ . In this case, X _{0 to} X ₇ constitute 8-bit binary data as a whole and represent the amount of change in the X-axis direction,
A positive value indicates rightward movement, and a negative value indicates leftward movement. The same applies to Y _{0 to} Y ₇ , and 8-bit binary data is formed as a whole to represent the amount of change in the Y-axis direction. Positive values indicate upward movement, and negative values indicate downward movement. There is.

[0006]

When a mouse is connected to a personal computer, the personal computer outputs data from the two-button mouse based on the built-in application software when the two-button mouse is connected. It is possible to perform data processing according to the content of the data in response to the data of the predetermined format.

However, when the 3-button mouse is connected, the data output from the 3-button mouse is, of course,
The personal computer cannot process the data output from the 3-button mouse by the built-in application software because the data is different from the predetermined format data output from the 2-button mouse.

Thus, in the known data input device, the main controller responds to the operation of the auxiliary device only when the required auxiliary device, for example, a two-button mouse, is connected to the main controller, for example, a personal computer. However, if the type of auxiliary device is changed, the main control unit will no longer respond to the auxiliary device. There is a problem that the wear needs to be replaced.

The present invention solves such a problem, and an object thereof is to discriminate the type of the auxiliary device by the main control device when connecting the auxiliary device to the main control device, and to obtain the data according to the discrimination. It is to provide a data input device capable of performing processing.

[0010]

In order to achieve the above object, according to the present invention, an auxiliary device having two or three operation buttons is selectively connected to a main control unit, and the auxiliary device has two operation buttons. When the accessory device is connected, data indicating the 3-byte coordinate position is supplied to the main control device, and when the accessory device having the three operation buttons is connected, the data indicating the 3-byte coordinate position is followed by the third data. Showing the operation state of the operation button of 1
Bytes of additional data are supplied to the main controller, and the main controller determines whether the auxiliary device has the two or three operation buttons according to the presence or absence of the one byte of additional data, and the three bytes Means for responding to the data indicating the coordinate position of 1 or the data indicating the coordinate position of 3 bytes and the additional data of 1 byte.

[0011]

In the above means, the main control device receives the data indicating the input coordinate position of 3 bytes output from the auxiliary device when the connected auxiliary device is operated, and inputs the 3 bytes. Depending on whether 1 byte of additional data is received following the data indicating the coordinate position, whether it is an accessory device having two operation buttons or an accessory device having three operation buttons. Determine. At this time, when the main control device determines that the device is an auxiliary device having two operation buttons, it subsequently receives data indicating the coordinate position of 3 bytes and executes a predetermined process based on the data contents. On the other hand, if it is determined that the device is an accessory device having three operation buttons, 1 byte of additional data is received after receiving the data indicating the coordinate position of 3 bytes,
Predetermined processing is performed based on the contents of the received data.

As described above, according to the above-mentioned means, it is determined whether the accessory device connected in the main controller is the accessory device having two operation buttons or the accessory device having three operation buttons, and the determination is made. Since the data processing supplied according to the result is performed separately, it becomes possible to perform the data processing according to the type of the auxiliary device connected to the main control device, and for each type of the auxiliary device, There is no need to use a main controller that incorporates different application software, and a compatible data input device can be obtained.

[0013]

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

FIG. 1 is a block diagram showing a schematic configuration of an embodiment of a data input device according to the present invention.
A personal computer (personal computer) is used as the main control device, and a mouse is used as the accessory device.

In FIG. 1, a cable 4 is attached to the personal computer 1.
A mouse having two operation buttons (hereinafter, referred to as a two-button mouse) 2 or a mouse having three operation buttons (hereinafter, referred to as a three-button mouse) 3
Is connected. The personal computer 1 also stores a mouse driver 5 connected to the 2-button mouse 2 or the 3-button mouse 3, a data determination unit 6 for determining data received by the mouse driver 5, and data supplied from the data determination unit 6. A data processing unit 7 for processing, a read-only memory (ROM) 8 containing application software (operation program), a display unit 9 for displaying processed data, and a control unit 10 for controlling the operation of each unit of the personal computer 1. It has and. In this case, 2 button mouse 2
2 button mouse 2 when is connected to PC 1
When the 3 button mouse 3 is connected to the personal computer 1, 3 button data is output from the 2 button mouse 2 side to the personal computer 1 side in the data format shown in FIG. When the mouse 3 is operated, the data of the first to fourth bytes having the data format shown in FIG. 2 below is output from the 3-button mouse 3 side to the personal computer 1 side.

FIG. 2 is an explanatory diagram showing the data format output from the 3-button mouse 3 in the data input device of this embodiment.

As shown in FIG. 2, a 3-button mouse 3
The data format output from is 1st byte, 2nd
Byte, 3rd byte, 4th byte, and 1st to 4th bytes each have 7-bit structure (actually 8 bits structure consisting of 7 bits to 0 bits, but the 7th bit of them is not used. It has a 7-bit configuration). Then, the first to fourth
Of the byte configurations, the first to third byte configurations are
This is exactly the same as the data format output from the known 2-button mouse 2 shown in FIG. 4, and the 4th byte structure that is the additional data is the 6th bit (start bit).
Is always "1", and the fifth bit is "1" when the third button is operated and "0" when it is not operated.
And the 4th to 0th bits are dummy bits,
Both are “0”.

FIG. 3 is a flow chart showing an operation process executed in the personal computer 1 for determining the type of mouse and receiving data.

The operation of this embodiment will be described with reference to this flowchart.

First, 2 is connected to the personal computer 1 via the cable 4.
Mouse 2 with either button mouse 2 or 3 button mouse 3 connected and mouse driver 5 connected
When a command requesting the output of data is issued to (3), the mouse 2 (3) sequentially outputs data according to a predetermined format via the cable 4.

At this time, in step S1, the mouse driver 5 receives the data of the first byte supplied from the mouse 2 (3) and supplies the received data of the first byte to the data judging section 6.

Next, in step S2, the data determination unit 6 determines whether or not the start bit (6th bit) of the supplied data of the first byte is "1". At this time, when it is determined that the start bit is "1" (Y), it is determined that the data is the regular first byte data, and the process proceeds to the next step S3, while the start bit is not "1". If it is determined to be (N), it is determined that the data is not the regular first byte data, and the process returns to the first step S1 to wait for the arrival of the regular first byte data.

Next, in step S3, the data determination unit 6 supplies the data of the first byte to the data processing unit 7, and the data of the first byte is temporarily processed by the data processing unit 7.
It is stored in the internal buffer memory (not shown).

In the subsequent step S4, the mouse driver 5 receives the second byte of data supplied from the mouse 2 (3) and supplies the received second byte of data to the data judging section 6.

Subsequently, in step S5, the data determination unit 6 supplies the supplied second byte data to the data processing unit 7, and temporarily stores the second byte data in the buffer in the data processing unit 7. Store in memory.

Next, in step S6, the mouse driver 5 receives the data of the third byte supplied from the mouse 2 (3), and supplies the received data of the third byte to the data determination unit 6.

Next, in step S7, the data determination unit 6 supplies the supplied third byte data to the data processing unit 7, and temporarily stores the third byte data in the buffer memory in the data processing unit 7. To store.

In the next step S8, the mouse driver 5 receives the fourth byte data (additional data) supplied from the mouse 2 (3), and judges the received fourth byte data (additional data). Supply to the part 6.

Subsequently, in step S9, the data determination section 6 determines whether or not the start bit (6th bit) of the supplied fourth byte data (additional data) is "1". At this time, when it is determined that the start bit is “1” (Y), the data of the relevant byte is the data of the next regular first byte, and the connected mouse 2 (3) has 2 bits. The mouse is determined to be 2, and the process returns to the previous step S3, while the start bit is "0".
(N), the data in the relevant byte is the regular fourth byte data (additional data), and
It is determined that the connected mouse 2 (3) is the 3-bit mouse 3, and the process proceeds to the next step S10. At this time, when the data processing unit 7 determines that the connected mouse 2 (3) is the 2-bit mouse 2, the data processing unit 7 reads the first to third bytes of data stored in the internal buffer memory, and reads the read data. Is processed and then supplied to the display unit 9 or the like to display the required coordinate position based on the data.

Next, in step S10, the data determination unit 6 supplies the supplied 4th byte data (additional data) to the data processing unit 7, and temporarily stores this 4th byte data (additional data). The data is stored in the buffer memory in the data processing unit 7, and the process returns to the first step S1. At this time, the data processing unit 7 reads the first to fourth bytes of data stored in the internal buffer memory, processes the read data, and then supplies the data to the display unit 9 or the like to obtain the required coordinates based on the data. The position is displayed.

The operations executed in steps S1 to S10 are all application software (operation program) stored in the ROM 8.
This application software (operation program) is performed under the control of the control unit 9 operated by the known application software (operation program) for receiving data from the two-button mouse 2.
And the part that determines the 6th bit of the 4th byte and the 4th
A part for receiving byte data (additional data) is added, and even when the 2-button mouse 2 is connected, or 3
Even when the button mouse 3 is connected, those mouse 2
The data supplied from (3) can be received, and the required coordinate position can be set based on the received data.

As described above, according to this embodiment, even if either the 2-button mouse 2 or the 3-button mouse 3 is connected to the personal computer 1, the personal computer 1 is
The type of the mouse 2 (3) connected to the personal computer 1 is determined because the type of the mouse 2 (3) to be connected is determined based on the data output from (3) and data processing is performed according to the determination result. It becomes possible to perform data processing according to the above, and it becomes unnecessary to use the personal computer 1 having different application software built in for each type of the mouse 2 (3), and a compatible data input device can be obtained.

In this embodiment, the main controller is the personal computer 1 and the accessory is the two-button mouse 2 or the three-button mouse 3, but the main controller and the accessory according to the present invention have been described. The device is not limited to the personal computer 1 and the mouse 2 (3), but the personal computer 1 and the mouse 2
Of course, the same can be applied to other devices similar to (3).

[0034]

As described in detail above, according to the present invention, the auxiliary device 2 connected in the main control device 1 is connected.
It is determined whether (3) is the accessory device 2 having two operation buttons or the accessory device 3 having three operation buttons, and the data processing supplied according to the determination result is separately performed. Therefore, it becomes possible to perform data processing according to the type of the auxiliary device 2 (3) connected to the main control device 1, and different application software for each type of the auxiliary device 2 (3). Since there is no need to use the main control device 1 having a built-in device, there is an effect that a compatible data input device can be obtained.

[Brief description of drawings]

FIG. 1 is a block configuration diagram showing a schematic configuration of an embodiment of a data input device according to the present invention.

FIG. 2 is an explanatory diagram showing a data format output from a 3-button mouse in the data input device of the embodiment shown in FIG.

FIG. 3 is a flowchart showing an operation process when determining a mouse type and receiving data, which is executed in a personal computer.

[Fig. 4] When a 2-button mouse is connected to a personal computer,
It is explanatory drawing which shows an example of the known data format output from a 2-button mouse.

[Explanation of symbols]

 1 PC (main control unit) 2 2 button mouse (attached device) 3 3 button mouse (attached device) 4 cable 5 mouse driver 6 data judgment unit 7 data processing unit 8 read only memory (ROM) 9 display unit 10 control unit

Claims (5)

[Claims] 1. An auxiliary device having two or three operation buttons is selectively connected to a main control device, and when an auxiliary device having two operation buttons is connected, data indicating a coordinate position of 3 bytes is said. When the accessory device having the three operation buttons is supplied to the main control device, the operation state of the third operation button is displayed after the data indicating the coordinate position of the three bytes.
Bytes of additional data are supplied to the main controller, and the main controller determines whether the auxiliary device has the two or three operation buttons according to the presence or absence of the one byte of additional data, and the three bytes The data indicating the coordinate position of or the data indicating the input coordinate position of the above 3 bytes and the above 1
A data input device characterized by responding to each additional byte of data. 2. The data indicating the coordinate position of 3 bytes consists of 7 bits, and the start bit of the first byte is "1" and the start bits of the second and third bytes are "0". The data input device according to claim 1, wherein the data input device is provided. 3. The data input device according to claim 1, wherein the 1-byte additional data consists of 7-bit data, and the start bit is “0”. 4. The data input device according to claim 1, wherein in the 1-byte additional data, the operation state of the third operation button is indicated by the sixth bit. 5. The data input device according to claim 1, wherein the accessory device is a mouse, and the main controller is a personal computer (personal computer).