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External keyboard and mobile terminal

An external keyboard and mobile terminal technology, applied in the direction of user/computer interaction input/output, etc., can solve the problems of power consumption, inability to fold, and high cost of Bluetooth keyboards, and achieve the effect of reducing costs

Active Publication Date: 2014-06-18
PHICOMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Of course, there are also Bluetooth keyboards, but the current Bluetooth keyboards are relatively expensive, consume more power, and cannot be folded.

Method used

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  • External keyboard and mobile terminal
  • External keyboard and mobile terminal

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Embodiment Construction

[0043] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments It is only a part of the embodiments of the present invention, but not all of them.

[0044] Regarding the "coupling" in this article, it can refer to the direct connection of two modules (or units, components), or the indirect connection of two modules (or units, components), that is, the connection between two modules (or units, components) There are other modules (or units, elements).

[0045] refer to figure 1 , figure 2 , figure 1 A block diagram illustrating an external keyboard according to an embodiment of the present invention, figure 2 painted figure 1 Block diagram of a mobile terminal with a matc...

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Abstract

The invention provides an external keyboard and a mobile terminal. The external keyboard comprises a plurality of keys, and also a key identification module for identifying the pressing positions of keys to generate corresponding column signals and row signals, a first sine wave generator coupled with the key identification module and used for generating a first sine wave signal according to the column signals, a second sine wave generator coupled with the key identification module and used for generating a second sine wave signal according to the row signals, an amplifier coupled with the first sine wave generator and the second sine wave generator and used for amplifying the superposed signal of the first sine wave signal and the second sine wave signal, and an interface part coupled with the amplifier and inserted into a microphone jack of the mobile terminal, wherein when a key is pressed down, an output signal of the amplifier is transmitted to the mobile terminal through the interface part and the microphone jack to the mobile terminal and then a corresponding operation is executed. The external keyboard and the mobile terminal are characterized in that the external keyboard inputs signals by virtue of the microphone jack, and therefore, the keyboard input is realized.

Description

technical field [0001] The invention relates to the field of electronic products, in particular to an external keyboard and a mobile terminal. Background technique [0002] At present, there are more and more smart mobile devices, but these smart mobile devices have gradually exposed a problem, that is, the input problem. [0003] For intelligent mobile devices such as mobile phones and tablet computers, because the screen is relatively small, soft keyboard input is generally used, but in this way, its speed is relatively slow. Of course, there are also Bluetooth keyboards, but the current Bluetooth keyboards are relatively expensive, consume more power, and cannot be folded. Contents of the invention [0004] In view of the above, it is necessary to propose an external keyboard and a mobile terminal for the keyboard input problem of the existing mobile equipment. [0005] One aspect of the present invention proposes an external keyboard, including a plurality of keys,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/02
Inventor 刘长琦
Owner PHICOMM (SHANGHAI) CO LTD
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