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Keyboard

A keyboard and key technology, applied in the field of peripheral devices, can solve the problems of limited application scope, difficult data, transmission, etc., and achieve the effect of increasing the variety of functions and enhancing competitiveness.

Inactive Publication Date: 2011-04-06
DARFON ELECTRONICS (SUZHOU) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if figure 1 As shown, since the computer 1 usually plays the role of the USB host (host) end, and the mobile phone 2 plays the role of the USB device (device) end, therefore, in fact, the mobile phone 2 can be directly coupled to the Connected to the USB port 10 of the computer 1, but the mobile phone 2 cannot be directly coupled to the USB port 30 of other peripheral devices 3 (such as a keyboard) through its USB port 20
The reason is that the mobile phone 2 and the peripheral device 3 all play the role of the USB device end, and neither the mobile phone 2 nor the peripheral device 3 can be used as the USB host end, so it is difficult to communicate between the mobile phone 2 and the peripheral device 3 through the USB interface. data transmission
[0003] On the other hand, as far as the keyboard manufacturer is concerned, if the keyboard he manufactures can only be coupled to the computer 1 as the USB host end and transmit data, but cannot be coupled to the mobile phone 2 as the USB device end to transmit data, The scope of its application will be obviously limited, and cannot meet the needs of current users

Method used

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Embodiment Construction

[0021] In order to have a further understanding of the purpose, structure, features, and functions of the present invention, the following detailed descriptions are provided in conjunction with the embodiments.

[0022] A specific embodiment according to the present invention is a keyboard. In this embodiment, there are no specific restrictions on the type, shape and size of the keyboard. Please refer to figure 2 , figure 2 A schematic diagram of the appearance of the keyboard 4 of this embodiment is shown.

[0023] Such as figure 2 As shown, the keyboard 4 is suitable for inputting data on the handheld device 6 , and the handheld device 6 has a USB connection port 60 . The keyboard 4 can also be coupled to the computer 5 , and the computer 5 also has a USB connection port 50 . The keyboard 4 includes a plurality of keys 40 , a pointing device 41 , a sound input / output device 42 , a card reader 43 , an Ethernet device 44 , a power supply 45 and a USB connection port 46...

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PUM

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Abstract

The invention discloses a keyboard, which is suitable for inputting data to a handheld device, wherein the handheld device is provided with a USB port. The keyboard comprises a control unit, a plurality of keys and a key controller, wherein the control unit is provided with a USB OTG interface; the key controller is coupled with the control unit and the keys; when the USB OTG interface is coupled with the USB port of the handheld device, the control unit is in the host mode; and when one of the keys is pressed, the key controller generates a signal and the signal is transmitted to the handheld device via the control unit. The keyboard can not only be coupled with the computer as the USB host end and transmit data but also be coupled with the handheld device as the USB device end and transmit data.

Description

technical field [0001] The present invention relates to peripheral devices, in particular, to a keyboard suitable for inputting data into handheld devices and having a USB (Universal Serial Bus) host mode / device mode automatic switching function. Background technique [0002] Generally speaking, most of the mobile phones currently on the market have a USB interface as a transmission interface for exchanging data with a computer. However, if figure 1 As shown, since the computer 1 usually plays the role of the USB host (host) end, and the mobile phone 2 plays the role of the USB device (device) end, therefore, in fact, the mobile phone 2 can be directly coupled to the connected to the USB port 10 of the computer 1, but the mobile phone 2 cannot be directly coupled to the USB port 30 of other peripheral devices 3 (such as a keyboard) through its USB port 20 . The reason is that the mobile phone 2 and the peripheral device 3 all play the role of the USB device end, and neithe...

Claims

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Application Information

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IPC IPC(8): G06F3/02
Inventor 罗士峰
Owner DARFON ELECTRONICS (SUZHOU) CO LTD
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