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Method and device of sharing minitype USB interface for UART (Universal Asynchronous Receive/Transmitter) and USB (Universal Serial Bus)

A USB interface, miniature technology, applied in the field of mobile devices, can solve the problems of unfavorable, complicated functions, occupying space of mobile phones, etc., and achieve the effect of simple structure, low cost and space saving

Active Publication Date: 2011-01-05
HUIZHOU TCL MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the continuous development of mobile terminal technology and the continuous improvement of CPU speed, there are more and more applications on mobile phones, and the functions are becoming more and more complex. In order to support these applications, there are more and more peripheral interfaces on mobile phones. For example, mobile phones need USB data transmission interface, charging interface, mobile phone software download update UART interface, but in the mobile phone of the prior art, these interfaces are all separately arranged on the mobile phone, need to occupy a lot of space of the mobile phone at the same time, for the integration and miniaturization of the mobile phone Brings restrictions, and at the same time, setting each interface separately is not conducive to reducing production costs

Method used

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  • Method and device of sharing minitype USB interface for UART (Universal Asynchronous Receive/Transmitter) and USB (Universal Serial Bus)
  • Method and device of sharing minitype USB interface for UART (Universal Asynchronous Receive/Transmitter) and USB (Universal Serial Bus)
  • Method and device of sharing minitype USB interface for UART (Universal Asynchronous Receive/Transmitter) and USB (Universal Serial Bus)

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Embodiment Construction

[0031] The method and device for sharing a micro-USB interface between UART and USB provided by the present invention, wherein the UART is a Universal Asynchronous Receiver / Transmitter (UART) for asynchronous communication. The bus bidirectional communication, can realize full-duplex transmission and reception. The USB is a Universal Serial Bus (Universal Serial Bus, USB).

[0032] In order to make the object, technical solution and advantages of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0033] The device that the UART and USB provided by the embodiment of the present invention share the micro-USB interface is mainly used in mobile phones, such as figure 1 As shown, it includes a Micro-USB (miniatu...

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PUM

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Abstract

The invention discloses method and device of sharing a minitype USB interface for a UART and a USB, relating to the field of mobile equipment. The method and device of sharing the minitype USB interface for the UART and the USB are characterized in that a USB data transmission interface, a charging interface and a UART interface downloaded and updated by mobile phone software are skillfully multiplexed to a five-pin Micro-USB interface through two single-pole double-throw analogue switches and certain auxiliary circuits, and a USB data transmission function, a charging function and a mobile phone downloading and updating function can be achieved on the same one Micro-USB interface, i.e. a charger, a USB data transmission line and the UART interface are combined in one; three complicated functions are achieved by the Micro-USB interface with very small dimensions, thereby saving valuable space for a mobile phone and being convenient for designing a smaller-size hand-held terminal, and moreover, the device has simple structure and low implementation cost.

Description

technical field [0001] The invention relates to the field of mobile devices, in particular to a method and a device for a UART channel transmission device and a USB to share a Micro-USB (miniature USB) interface. Background technique [0002] With the continuous development of mobile terminal technology and the continuous improvement of CPU speed, there are more and more applications on mobile phones, and the functions are becoming more and more complex. In order to support these applications, there are more and more peripheral interfaces on mobile phones. For example, mobile phones need USB data transmission interface, charging interface, mobile phone software download update UART interface, but in the mobile phone of the prior art, these interfaces are all separately arranged on the mobile phone, need to occupy a lot of space of the mobile phone at the same time, for the integration and miniaturization of the mobile phone This brings restrictions, and at the same time, set...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/40
Inventor 王亚辉
Owner HUIZHOU TCL MOBILE COMM CO LTD
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