CN100435076C - Multiple layout keyboard - Google Patents

Abstract

The invention discloses a multi-layout keyboard, which includes 26 English letter keys, and each key has two or more key output terminals, wherein each output terminal expresses 26 letters according to A key output terminal of a certain letter arranged in alphabetical order; the above-mentioned two or more key output terminals are respectively connected to one of the input terminals of a multi-channel 26-bit multiplexer, and the multi-channel 26-bit multiplexer There is one output terminal connected to the input terminal of the subsequent circuit, and multiple 26-bit multiplexers are connected to the selection switch. The invention has a reasonable structure, and can be input according to customary alphabetical sorting (or required sorting form) or according to the order of A to Z by selecting a switch.

Description

Multiple layout keyboard

Technical field:

The invention relates to a computer keyboard.

Background technique:

In 1874, Christopher Sholes invented the QWERTY keyboard in order to slow down the typing speed and separate the commonly used letters to reduce the incidence of extrusion failure between the linkage rods when the typewriter was typing. . In 1932, August Dvorak (August Dvorak) invented the Dvorak keyboard, hoping to rearrange the keys to increase typing speed after it was no longer necessary to avoid the extrusion of the linkage rod. But people have become accustomed to QWERTY keyboards, and Dvorak keyboards cannot be mass-produced. Later, people also invented a variety of keyboards with different sorting forms, but they were not mass-produced due to people's usage habits.

Invention content:

The object of the present invention is to provide a multi-layout keyboard with a reasonable structure, which can not only be sorted and input according to customary letters, but also be able to input according to the set order.

Technical solution of the present invention is:

A multi-layout keyboard, including 26 English letter keys, is characterized in that: 26 English letter keys of the keyboard, each key has two or more key output terminals, wherein each output terminal expresses 26 letters according to A key output terminal of a certain letter arranged in alphabetical order; the above-mentioned two or more key output terminals are respectively connected to one of the input terminals of a multi-channel 26-bit multiplexer, and the multi-channel 26-bit multiplexer There is one output terminal connected to the input terminal of the subsequent circuit, and multiple 26-bit multiplexers are connected to the selection switch.

The selection switch is a high and low level selection switch of one or more bits. The surface of the 26 English letter keys of the keyboard is provided with two or more different letter marks, each of which is a certain letter mark arranged in an alphabetical order of 26 letters.

The invention has a reasonable structure, and can input according to customary alphabetical sorting (or required sorting form) and input according to a set sequence such as A to Z, etc. by selecting a switch. Users who are accustomed to the existing keyboard can use it without changing their input habits, and new learners can also input conveniently and quickly according to the order of A to Z.

Description of drawings:

The present invention will be further described below in conjunction with drawings and embodiments.

Fig. 1 is a panel diagram of a keyboard according to an embodiment of the present invention.

Fig. 2 is a schematic circuit diagram of an embodiment of the present invention.

Detailed ways:

A multi-layout keyboard, including 26 English letter keys, 26 English letter keys on the keyboard, each key has two key output terminals, one of which is to express a certain letter of 26 letters arranged in the order of A to Z The key output terminal, the other output terminal is a certain letter key output terminal that expresses 26 letters arranged according to the required order (for example, QWERTY form or other required forms); the above two key output terminals are respectively connected with a two-way 26-bit multi-way The two-way input terminals 1 and 2 of the multiplexer 3 (also known as MUX) are connected, the two-way 26-bit multiplexer has an output terminal 4 connected to the input terminal of the subsequent circuit, and the two-way 26-bit multiplexer Connect with high and low level selection switch 5 (S1). The user selects the working mode of the keyboard (switching between different keyboard layouts) by selecting the switch S1. When S1 is connected to low level (ground), MUX selects input channel 0, and the keyboard works in the classic layout mode (equivalent to a normal keyboard); when S1 is connected to high level (V _DD ), MUX selects input channel 1, The keyboard works in the new layout mode (that is, the letters are arranged in a natural order from A to Z).

The surface of the 26 English letter keys of the keyboard is provided with two different letter marks, one of which is a certain letter mark arranged in order according to a need (such as the classic QWERTY form), and the other is 26 letters according to another need. A certain letter mark arranged in sequence (for example, A-Z arrangement or other required order).

Certainly, the present invention can also have other suitable embodiments, example: 26 English letter keys of the keyboard, each key has multiple key output terminals, wherein each output terminal of each road expresses 26 letters arranged according to a kind of alphabetical order A letter key output terminal; multiple key output terminals are respectively connected to one of the input terminals of a multi-channel 26-bit multiplexer, and the multi-channel 26-bit multiplexer has an output connected to the input terminal of the subsequent circuit At the end, multiple 26-bit multiplexers are connected to the selector switch. The selection switch is a high and low level selection switch of one or more bits. The surfaces of the 26 English letter keys of the keyboard are all provided with a plurality of different letter marks, each of which is a certain letter mark arranged in an alphabetical order of 26 letters.

Claims (3)

1. A multi-layout keyboard, including 26 English letter keys, is characterized in that: 26 English letter keys of the keyboard, each key has two or more key output terminals, wherein each output terminal expresses 26 The English letters are arranged according to an alphabetical order of a certain letter key output; the above-mentioned two or more key output terminals are respectively connected to one of the input terminals of a multi-channel 26-bit multiplexer, and the multi-channel 26-bit multiplexer The multiplexer has one output terminal connected with the input terminal of the subsequent circuit, and the multiplexer with 26 bits is connected with the selection switch. 2. The multi-layout keyboard according to claim 1, characterized in that: the selection switch is a high and low level selection switch of one or more positions. 3. The multi-layout keyboard according to claim 1 or 2, characterized in that: the surface of the 26 English letter keys of the keyboard is provided with two or more different letter marks, each of which is one of the 26 letters. Alphabetical order of a certain letter mark.

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