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Mobile terminal

A mobile terminal and interface technology, applied in the direction of telephone structure, fixed connection, electrical components, etc., to achieve the effect of reducing the overall size

Active Publication Date: 2013-10-02
成武县启源国有资产运营有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, there are more and more mobile terminals and external accessories (such as USB data cables, UART serial cables, earphone cables, chargers, etc.), and more and more external interfaces are required, which forms a contradiction invisibly.

Method used

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Embodiment Construction

[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0016] The present invention provides a mobile terminal, comprising a casing 1, a main control circuit 2 is arranged in the casing 1, the main control circuit 2 is connected with a Micro-USB interface 3, the Micro-USB interface is arranged on one side of the casing, and The casing 1 also includes a first accessory detection circuit 4 and a second accessory detection circuit 5, the first accessory detection circuit and the second accessory detection circuit are also connected to the main control circuit, and the first accessory detection circuit is used to detect the Micro - the potential value at the power input pin A in the USB interface, the second accessory detection circuit is used to detect the potential value at the two signal transmission pins B and C in the Micro-USB interface; the first accessory detection circuit It is connected to t...

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Abstract

The invention relates to a mobile terminal which comprises a main control circuit. The mobile terminal is characterized in that the main control circuit is connected with a Micro-USB interface, and the mobile terminal also comprises a first attachment detecting circuit for detecting a level value of a power supply input pin (A) in the Micro-USB interface and a second attachment detecting circuit for detecting level values of two signal transmission pins (B,C) in the Micro-USB interface; the first attachment detecting circuit is connected with an anode of a diode; a cathode of the diode is connected with the power supply input pin (A) of the Micro-USB interface; meanwhile, the anode of the diode is connected with an external voltage-stabilizing power supply; and the second attachment detecting circuit is connected with the two signal transmission pins (B,C) of the Micro-USB interface. Compared with the prior art, the invention has the advantages of connecting a plurality of attachments with the mobile terminal by the Micro-USB interface without additional other external interfaces and greatly reducing the integral size of a mainboard of the mobile terminal.

Description

technical field [0001] The present invention relates to a mobile terminal. Background technique [0002] Mobile terminals (such as mobile communication terminals, PDAs, etc.) have more and more functions. However, due to the needs of appearance design, the overall size of the main board of the mobile terminal is generally required to be small and compact. Moreover, there are more and more mobile terminals and external accessories (such as USB data cables, UART serial cables, earphone cables, chargers, etc.), and more and more external interfaces are required, which forms a contradiction invisibly. . Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a mobile terminal in which multiple accessories can be connected to the mobile terminal through an external interface in view of the above prior art. [0004] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04M1/02H01R27/00H01R12/51
Inventor 应凤英马可信
Owner 成武县启源国有资产运营有限责任公司