JPS6058478B2 - Automatic cursor shift control method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cursor shift control system for display devices in electronic computers, telephones, data exchanges, and the like.

At the same time as electronic computers, telephones, data exchanges, etc. have become widespread, various display devices have been developed and become popular, and various cursor shift control systems are being considered.

In the conventional cursor shift control method, if the cursor shift key is held down, the cursor moves repeatedly at the same speed, and the cursor moves at a slower speed to accommodate movement of one character at a time. There are many.

However, this method was time consuming and inefficient when moving to an arbitrary remote location. The purpose of the present invention is to
To provide a very efficient cursor shift control system that eliminates the above-mentioned drawbacks by making the cursor speed slow when moving one character at a time and increasing the cursor speed when moving continuously to an arbitrary remote position.

In order to achieve the above object, the present invention provides a cursor shift control method for a display device having a cursor display function, which includes a plurality of keys including a cursor shift key, and a detection unit that detects that the cursor shift key is operated. ,
a gate control section, a gate section, a cursor speed control section,
The cursor shift control system includes an interface section, a display section, and a clock supplied to the cursor speed control section, and when the cursor shift key is continuously operated, the cursor repeats a shift operation while changing its speed.

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing a first embodiment of the present invention. A keep key 100 consisting of a plurality of keys including a cursor shift key, a detection unit 200 that detects when the cursor shift key is pressed, and a gate control unit 3
00, a gate section 400, a cursor speed control section 500, an interface section 600, a display section 700, and a central processing unit 800. When a key is pressed, the key block 100 transmits information to the gate section 400 via the information line 101.
At the same time as sending the key data to the detection section 200, the gate control section 300 is notified via the control line 102 that the key has been pressed.

If the key data is a cursor shift key, the detection unit 200 notifies the gate control unit 300 via the control line 201 that the cursor shift key is being pressed, but if the key data is not a cursor shift key, it does nothing. When the gate control section 300 learns from the control line 102 that a key has been pressed, it sends one pulse to the gate section 400 and the cursor speed control section 500 via the control line 301 and at the same time sends one pulse to the gate section 400 and cursor speed control section 500 via the control line 302. This notifies the cursor speed control unit 500 that the key data has been sent.

The control line 302 is sent while the key continues to be pressed, and stops when the key is released. The gate section 400 opens the gate in response to a pulse sent from the control line 301, and sends the key data on the information line 101 to the interface section 600 via the information line 401. Interface unit 600 sends key data to central processing unit 800 via information line 602. Central processing unit 800 identifies whether data to be processed within itself is data to be displayed on display unit 700, and if it is the latter, sends it to interface unit 600 via information line 801. The interface unit 600 sends the data on the information line 801 to the display unit 700 via the information line 601. The display section 700 identifies whether the data is display data or cursor data, and if it is the former, it is written to a refresh memory within the display section 700 and displayed according to the contents in the memory. Also, if it is the latter, display section 7
The cursor counter in 00 is counted up or down according to the function of the cursor shift key.
The cursor performs the first shift operation according to the contents of the cursor counter. When the cursor speed control unit 500 learns that the key data has been sent out via the control line 302, it counts the clocks sent out via the clock line 501, and when a predetermined number is reached, the cursor speed control unit 500 sends out the key data via the control line 502 for a fixed period of time. The gate controller 300 is notified of the change. The fixed time is the time it takes for the cursor to shift after the first shift when the cursor shift key is pressed, and approximately one second is appropriate. The predetermined number is determined by the fixed time and the period of the clock. If the fixed time is 1 second and the clock is 8 Hz, it is sufficient to count 8 clocks. In reality, the timing of pressing the key and the timing are not synchronized, so the difference is 0.875 seconds to 1 second, but a difference of 0.12 to 2 is difficult for humans to detect and does not pose a problem. The gate control unit 300 knows from the control line 502 that a fixed time has elapsed, and from the control line 201 it knows whether the cursor shift key is pressed or not.If the latter, the gate control unit 300
does nothing and the cursor is shifted by one character. If it is the former, the gate control section 300 supplies one pulse to the gate section 400 and the cursor speed control section 500 via the control line 301. When a pulse is supplied to the gate 400, the gate section 400 and the interface section 60
0, the central processing unit 800 and the display section 700 perform the same operation as the first cursor shift control, and the second cursor shift is performed on the display section. When a pulse is supplied to the cursor speed control section 500 via the control line 301, the output on the control line 502 is stopped until the next clock is received. When the clock is received after approximately 0.12 hours, the gate controller 300 is notified via the control line 502 that it is time for the force-sol shift. If the cursor shift key is being pressed at this time, the same operation as the second cursor shift is repeated. This operation is repeated as long as the cursor shift key continues to be pressed, and the cursor is sequentially shifted. When the cursor shift key is restored, the cursor shift operation stops, each section is set to off, and when the cursor shift key is pressed again, the above operation is repeated from the beginning. FIG. 2 is a block diagram showing a second embodiment of the invention.

This second embodiment is almost the same as the first embodiment shown in FIG. (FIG. 2), a request from the central processing unit 800 is detected by the interface unit 600 and sent to the gate control unit 30 via the control line 603.
Send to 0. The gate control section 300 sends one pulse to the control line 301 when the same gate pulse sending conditions as in FIG. 1 are met using the control line 102 or the control lines 201 and 502. It will not be sent if the sending conditions are not met. When the gate section 400 receives a pulse through the control line 301, it sends the key data on the information line 101 to the interface section 600.

When there is no pulse from the control line 301, the gate section 400 outputs “
601 is output. When the interface section 600 receives data other than ゜0゛ or "゜0゛," the information line 60
2 to the central processing unit 800. If the received data is ゜゜0゛, the central processing unit 800 determines that there is no key data, and does not perform any processing using that data. When data other than "0" is received, the same processing as described in FIG. 1 is performed.The above is the difference from FIG. 1, and the other points are the same as in the description of FIG. 1.

In the above explanation, the clock is supplied externally, but it can also be supplied internally to the display device, and the cursor speed and the time from the first cursor shift to the next cursor shift, and the cursor's continuous movement. It goes without saying that the speed at which the clock is running can be set arbitrarily depending on the clock cycle. As explained above, according to the present invention, when shifting the cursor one character at a time, the speed is slow, and when shifting the cursor to an arbitrary position, the cursor can be shifted quickly, resulting in very efficient cursor shift control. We can provide methods.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the structure of a first embodiment of the invention, and FIG. 2 is a block diagram showing the structure of a second embodiment of the invention. Note that 100 is a key block, 200 is a cursor shift key detection section, 300 is a gate control section, 400 is a gate section,
500 is a cursor speed control unit, 600 is an interface unit, and 700 is a display unit 800 is a central processing unit.

Claims (1)

[Claims] 1. In a cursor shift control method for a display device having a cursor display function, a plurality of keys including a cursor shift key, a detection unit that detects that the cursor shift key has been operated, and information on the key and information from the detection unit are provided. a gate control section that performs key data transmission and stop control based on a signal and a signal from the cursor speed control section; a gate section that transmits the key data according to a transmission signal from the gate control section; a cursor speed control section that counts clocks when receiving a key press signal and sends a gate control signal to the gate control section after a constant count; an interface unit that sends data to a display unit; a display unit that displays data or moves a cursor based on the data from the interface unit;
a clock supplied to the cursor speed control section, and the cursor shift control method is characterized in that when the cursor shift key continues to be operated, the cursor repeats a shift operation while changing its speed.