Small keyboard push-button expansion method and example

A small keyboard and button technology, which is applied in the field of small keyboard button expansion, can solve the problems of high force required for buttons, loss of practicality of the design, etc., and achieve good application prospects

Inactive Publication Date: 2008-06-04
蒋弘山
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Considering that the strength required to press a combination key is proportional to the number of keys contained in the combination key, too many combinations of keys will result in too much force required to press the key and make the design lose its practicality, so only two adjacent keys are used. The combination

Method used

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  • Small keyboard push-button expansion method and example
  • Small keyboard push-button expansion method and example
  • Small keyboard push-button expansion method and example

Examples

Experimental program
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Embodiment Construction

[0032] The method of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0033] Referring to Figure 1, the left side is a rectangular button, and the right side is a hexagonal button. Four or six small switch contacts are distributed on the edge of the key, and the key is connected to the bottom plate through these small switch contacts.

[0034] Referring to Fig. 2, when the thumb presses the adjacent two-key combination, only two switch contacts are connected for each single key. The point indicated by the arrow in the figure is the connected contact. Similarly, when the thumb presses the adjacent four-key combination, only one switch contact is connected for each single key.

[0035] Referring to Fig. 3, when the thumb presses the combination of adjacent two keys, each single key has only two switch contacts connected, and the point indicated by the arrow in the figure is the connected contact. Similarly, when ...

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PUM

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Abstract

The invention is applicable to devices such as handset, PDA etc. suitable to small keypad. An extended virtual key is defined as combination of adjacent real keys. Pushing down adjacent real keys is equivalent to pushing down a virtual key. Value of the virtual key is labeled between adjacent real keys corresponded. In the invention each real key is relevant to several small switch points distributed under key cap. When a combined key is pushed down, it is taken into action only need of part of the said switch points is connected. Different strength between pushing a combination keys and single key is released. Completed method for extending small keypad with algorithm of combined key. Finally, a series of instances are discloses in the invention.

Description

technical field [0001] The invention relates to a method for expanding keys on a small keyboard, which is suitable for expanding keys on hand-held devices such as mobile phones (mobile phones), palmtop computers, PDAs (personal digital assistants), and electronic dictionaries, so that the number of keys satisfies need. Background technique [0002] When using the small keyboard to input characters and symbols, there is a problem that the required number of keys cannot be arranged due to the small area of ​​the keyboard. This leads to the problem of inputting a language with a large character set with a language with a small character set. If you use a small character set to directly encode a large character set without repeated codes, such as using a two-digit number to encode an English letter in a digital keypad, or use a four-digit national standard code to encode a Chinese character, this will lead to a long code length. Variable length (promptly increasing the number ...

Claims

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Application Information

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IPC IPC(8): G06F3/023
Inventor 蒋弘山
Owner 蒋弘山
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