KR100925043B1 - Keyboard for computer - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a computer keyboard in which a plurality of keys included in a keyboard are assigned correspondingly to cells on a switch matrix divided into a plurality of scan-in and scan-out lines, respectively. 'Space', 'Shift (L)', 'Ctrl (L)', 'Alt (L)', 'Caps' and the cells assigned any of', '←', '↑' or '↓' The cells that are assigned any key among the locks' are different from each other in the scan-in line and the scan-out line. As a result, when a plurality of key inputs are performed at the same time, it is possible to minimize the occurrence of an error such as a ghost key.

Keyboard, ghost key, game

Description

Keyboard for computer {KEYBOARD FOR COMPUTER}

The present invention relates to a computer keyboard, and more particularly, to a computer keyboard that can minimize the occurrence of errors when a plurality of keys are simultaneously input.

When a character is input to a computer or a position of a cursor or the like is moved by using a conventional computer keyboard, keys are sequentially pressed one by one.

Recently, however, some application programs frequently press keys simultaneously to achieve key input. Especially in computer games, up to three or four keys must be pressed at the same time for proper command to be input. A case also occurred.

As described above, in the recent trend of computer games, the application program requires complicated key input, whereas the conventional computer keyboard frequently does not input properly when a plurality of keys are pressed at the same time. Occurred.

For example, when three key inputs must be made at the same time, there is a problem that an error such as a phenomenon called a ghost key occurs.

An object of the present invention is to provide a computer keyboard that can minimize the occurrence of errors such as ghost key when a plurality of key input is made at the same time.

In order to achieve the above object, the present invention relates to a computer keyboard in which a plurality of keys provided in the keyboard are respectively assigned to cells on a switch matrix partitioned into a plurality of scan-in and scan-out lines. Cells to which any key among '→', '←', '↑', and '↓' are assigned on the switch matrix, 'Space bar', 'Shift (L)', 'Ctrl (L)', 'Alt (L' The present invention provides a computer keyboard, wherein a scan-in line and a scan-out line are different between cells to which an arbitrary key of Caps Lock is assigned.

Herein, a cell to which any key among '→', '←', '↑', and '↓' is assigned on the switch matrix and any key among 'A', 'S', 'D', and 'F'. The scan-in line and the scan-out line may be different from each other to which cells are allocated.

In addition, cells allocated with the keys 'A', 'S', 'D', and 'F' on the switch matrix may have the same scanout line and sequentially scan neighbor lines. have.

In addition, the cells assigned to the keys of '→', '←', '↑', and '↓' on the switch matrix may have the same scan out line and sequentially scan adjacent lines to each other. have.

In addition, each cell to which a key of 'Shift (L)', 'Ctrl (L)', and 'Alt (L)' is assigned on the switch matrix is assigned to 'Shift (R)', 'Ctrl (R)', and 'Alt'. The key of (R) 'may have the same scan-in line with each assigned cell.

In addition, a cell to which any key of '→', '←', '↑', and '↓' is assigned on the switch matrix and any key of 'Q', 'W', 'E', and 'R'. The scan-in line and the scan-out line may be different from each other to which cells are allocated.

In this case, the same scanout line may be provided between the cells to which the keys of 'Q', 'W', 'E', and 'R' are assigned on the switch matrix.

Also, a cell to which any key of '→', '←', '↑', and '↓' is assigned and a cell to which any key of 'Z', 'X', or 'C' is assigned on the switch matrix. The scan-in line and the scan-out line may be different from each other.

According to the computer keyboard according to the present invention as described above, the keys that can be repeatedly inputted among the plurality of keys on the keyboard are assigned to cells different from each other in the scan-in line and the scan-out line on the switch matrix of the keyboard. In this case, an optimized keyboard may be provided so that an error such as a ghost key does not occur when they are simultaneously input to each other.

Computer keyboard 100 according to an embodiment of the present invention has a conventional keyboard appearance as shown in FIG.

In addition, the computer keyboard 100 is similar to a conventional keyboard, as shown in Figs. 2 and 3, and a plurality of nodes 111 and 121, the scan-in line 112 connecting the nodes, respectively, on the surface; The scan-in line sheet 110 includes a scan-in line sheet 110 and a scan-out line sheet 120 on which the scan-out line 122 is formed.

The nodes 111 of the scan-in line sheet 110 and the nodes 121 of the scan-out line sheet 120 are formed to correspond to the keys 101 on the keyboard 100 of FIG. 1, respectively. The upper and lower sides of each other are arranged in the case of the keyboard 100.

An insulating sheet 130 is interposed between the scan-in line sheet 110 and the scan-out line sheet 120, and a plurality of through holes 131 are formed in the insulating sheet 130. Each through hole 131 is formed to correspond to the node 111 of the scan-in line sheet 110 and the node 121 of the scan-out line sheet 120, respectively, so that the predetermined intervals between the nodes 111 and 121 To be maintained.

Therefore, when the user presses a specific key (101 in FIG. 1) of the keyboard 100, the nodes 111 and 121 at the corresponding positions in the scan-in line sheet 110 and the scan-out line sheet 120 are in contact with each other. A signal assigned to the pressed key is generated and input to the computer main body.

That is, the scan-in line sheet 110 of FIG. 2 and the scan-out line sheet 120 of FIG. 3 are configured such that the keys on the keyboard are assigned to the nodes 111 and 121 corresponding to each other. The key may be expressed in the form of a switch matrix 140 as shown in FIG. 5.

In FIG. 5, the row 141 is a diagram of the scan-in line 112 of the scan-in line sheet 110 of FIG. Of course, the nodes 111 on each scan-in line 112 are electrically connected to each other. In addition, one end of each scan-in line 112 forms an output terminal 113.

Similarly, in FIG. 5, the number of columns 142 is equal to the number of scanout lines 122 of the scanout line sheet 120 of FIG. 3, and each wire 122 has one end thereof at an output end ( 123). Of course, the nodes 121 on each scanout line 122 are electrically connected to each other.

In addition, on the switch matrix 140, the node 111 of the scan-in line sheet 110 and the node 121 of the scan-out line sheet 120 corresponding thereto constitute a cell 143, and each cell ( 143 is assigned a specific key 101 value of the keyboard (100 of FIG. 1).

Computer keyboard 100 according to an embodiment of the present invention has a wiring form of the scan-in line sheet 110 of FIG. 2 and the scan-out line sheet 120 of FIG. 3, and the switch of FIG. It is characterized by having a matrix 140.

The microcomputer (not shown) embedded in the keyboard 100 periodically outputs a signal through the scanout line 122 (142 in FIG. 5), and inputs the user's keyboard from the scan-in line 112 (141 in FIG. 5). Recognize.

Referring to FIG. 5, first, each key of '→', '←', '↑', and '↓' corresponding to a direction key has 6 scan-in lines and 6 scan-out lines (hereinafter, “[6, 6]”). Cell from [9, 6] to the cell of the figure.

In contrast, the keys of the letter keys 'A', 'S', 'D' and 'F' are located from [16, 3] to [19, 3] cells.

In addition, the keys of the special keys 'Space bar', 'Shift (L)', 'Ctrl (L)', 'Alt (L)' and 'Caps Lock' are respectively [3, 1], [4, 2]. , [1, 7], [12, 4], and [18, 2].

That is, the cells of the direction keys '→', '←', '↑' and '↓' are the cells of the letter keys 'A', 'S', 'D' and 'F' and the scan-in line 141, respectively. In addition, the scanout line 142 is also not duplicated. Likewise, the direction keys are the special keys 'Space bar', 'Shift (L)', 'Ctrl (L)', 'Alt (L)', and 'Caps Lock'. The scan-in line 141 and the scan-out line 142 are not overlapped with each other.

Typically, a ghost key occurs when three keystrokes duplicate a scan-in line 142 for two keys and a scanout line 141 overlaps between any one of these two and the remaining keys. Therefore, the scan-in line or the scan-out line is duplicated even when an arbitrary key is simultaneously pressed between the direction key and the character key and the direction key and the special key arranged as shown in FIG. 5 on the switch matrix 140. There is no problem, so you can see there is no room for ghost keys.

In FIG. 5, the same scan-out line (ie, column 6) and sequentially scan-in lines (ie, 6, 7, 8, etc.) between the same direction keys '→', '←', '↑', and '↓'. Line), and the same scan-out line (ie, column 3) and sequentially scan-in lines between the keys of the same letter keys 'A', 'S', 'D' and 'F' (I.e. lines 16, 17, 18, 19) to minimize line overlap with other keys.

Meanwhile, in FIG. 1, among the keys on the computer keyboard 100, the same key is present in a pair such as the left Shift key (ie, Shift (L)) and the right Shift key (ie, Shift (R)). In this case, it is not necessary that these keys be simultaneously input.

Thus, as shown in FIG. 5, the pair of keys may be located on the line 141 which is the same scan as each other.

Specifically, both Ctrl (L) and Ctrl (R) are on the first scan line (i.e. line 1), and Shift (L) and Shift (R) are both on the fourth scan line (i.e. line 4). , Alt (L) and Alt (R) can both be placed on the 12th scan line (i.e. 12 rows).

In addition, referring to Figure 5, for the direction keys '→', '←', '↑', '↓' located in the cells [6, 6] to [9, 6], the letter keys 'Q', The keys of 'W', 'E', and 'R' are located in [1, 1] cell, [10, 1] cell, [16, 1] cell, [5, 1] cell, respectively, You can make the rows and columns different, the scan-in line and the scan-out line.

These character keys may also be frequently inputted with the direction keys, in order to prevent the generation of ghost keys.

The letter keys of 'Q', 'W', 'E', and 'R' also have the same scanout line 142 with each other, so that the direction keys or the letter keys 'A', 'S', 'D' As in the case of 'F', the design of the switch matrix 140 may prevent ghost key generation due to a plurality of key inputs in these characters.

Similarly, for the direction keys of '→', '←', '↑' and '↓', the keys of the letter keys 'Z', 'X' and 'C' are respectively [2, 8] cells, [4]. , 8] cells, and [16, 5] cells, so that the direction keys and the rows and columns, that is, the scan-in line and the scan-out line can be different.

These character keys may also be frequently inputted with the direction keys, in order to prevent the generation of ghost keys.

As described above, according to the arrangement of the switch matrix 140 as shown in FIG. 5, virtually all keys located on the left side of the computer keyboard (100 of FIG. 1) do not generate ghost keys even when the keys are overlapped with the direction keys. It can be seen that.

In addition, left character keys on the keyboard 100 are also present on the same line (ex, 'A', 'S', 'D', 'F'), two or more of them are two of the direction keys. When pressed together with more than one, you can see that the ghost key can be input as it is without generating.

Therefore, according to the computer keyboard 100 according to the embodiment of the present invention, almost all application programs requiring complicated key input can be executed without difficulty.

On the other hand, the computer keyboard 100 is only an embodiment for the description of the present invention and should not be understood to limit the scope of the present invention to the technical scope, the scope of the present invention to the technical scope will be described later It is determined by the claims and their equivalents.

1 is a plan view showing the appearance of a computer keyboard according to an embodiment of the present invention,

2 to 4 are plan views showing scan-in line sheets, scan-out line sheets, and insulating sheets respectively embedded in the computer keyboard of FIG. 1;

5 is a switch matrix that may be plotted by the scan-in line sheet and scan-out line sheet of FIGS. 2 and 3.

          <Explanation of symbols for the main parts of the drawings>

100: computer keyboard 101: keys

110: scan-in line sheet 111: scan-in line (wiring)

112: node 113: output terminal

120: scanout line sheet 121: scanout line (wiring)

122: node 123: output stage

130: insulating sheet 131: through hole

140: switch matrix 141: row (scan-in line)

142: column (scanout line) 143: cell

Claims (8)

In a computer keyboard in which a plurality of keys included in a keyboard are respectively assigned to cells on a switch matrix partitioned into a plurality of scan-in and scan-out lines, Cells to which any key among '→', '←', '↑', and '↓' are assigned and the 'Space bar', 'Shift (L)', 'Ctrl (L)', and 'Alt (' L) ',' Caps Lock 'between the cells assigned any key, the scan-in line and the scan-out line are different from each other, Cells to which any of the keys '→', '←', '↑' and '↓' are assigned and the keys of 'A', 'S', 'D' and 'F' are allocated on the switch matrix. The scan-in line and the scan-out line are different from each other, but the same scan-out line is provided between the cells to which the keys of 'A', 'S', 'D', and 'F' are assigned on the switch matrix. It also has scan-in lines that sequentially neighbor each other, A cell having the same scan-out line and a sequentially scan-in line adjacent to each other between cells to which the keys of '→', '←', '↑', and '↓' are assigned on the switch matrix For the keyboard. delete delete delete The method of claim 1, Each cell to which a key of 'Shift (L)', 'Ctrl (L)' and 'Alt (L)' is assigned on the switch matrix is assigned to 'Shift (R)', 'Ctrl (R)', and 'Alt (R)'. A keyboard for a computer, characterized in that each cell to which a key of &quot; The method of claim 1, On the switch matrix, a cell to which any key of '→', '←', '↑', and '↓' is assigned and any key of 'Q', 'W', 'E', and 'R' are assigned A keyboard for a computer, characterized in that different cells have different scan-in and scan-out lines. The method of claim 6, And the same scan-out line between the cells to which the respective keys of 'Q', 'W', 'E', and 'R' are assigned on the switch matrix. The method of claim 1, A cell to which any key among '→', '←', '↑' and '↓' is assigned and a cell to which any key among 'Z', 'X' and 'C' are assigned A computer keyboard comprising a scan in line and a scan out line.

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