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A terminal device and grounding control method

A terminal equipment and grounding terminal technology, applied in the field of communication, can solve the problems of poor FM performance and achieve the effects of improving performance, ensuring HIFI performance, and enhancing FM performance

Active Publication Date: 2021-09-24
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present invention provides a terminal device and a grounding control method to solve the problem that the existing terminal device uses the positive electrode of the earphone as the FM antenna to ensure the HIFI performance, resulting in poor FM performance

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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0022] The terms "first", "second", etc. in the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a sequence of steps or elements is not necessarily limited to the expressl...

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Abstract

The present invention provides a terminal device and a grounding control method. The terminal device includes an earphone socket, a control circuit, a first grounding circuit, and a second grounding circuit. The grounding impedance of the first grounding circuit is greater than the grounding impedance of the second grounding circuit. Impedance; wherein, the earphone socket includes a ground pin; the control circuit is used to receive a control signal, and control the ground pin to pass through the first ground circuit or the second ground according to the received control signal circuit ground. Therefore, while ensuring the HIFI performance of the terminal device, the FM performance of the terminal device can be enhanced, thereby improving the performance of the terminal device.

Description

technical field [0001] Embodiments of the present invention relate to the field of communication technologies, and in particular, to a terminal device and a grounding control method. Background technique [0002] Currently, an FM (Frequency Modulation, modulated broadcast) of a terminal device may use an earphone as an antenna. When implementing it, there are two methods: one is to use the positive electrode of the earphone as the FM antenna, which has low FM sensitivity and a small number of receiving stations; the other is to use the earphone ground wire as the FM antenna, which has high FM sensitivity And there are a lot of receiving stations. It should be understood that in order to prevent the signal received by the FM antenna from entering the ground and causing the FM performance to fail, this method requires the grounding impedance of the earphone ground wire to be relatively large. [0003] On the other hand, when the terminal device has a HIFI (High-Fidelity, high...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04M1/02H01R4/66
CPCH01R4/66H04M1/0274H04M1/0277
Inventor 兰恒昇
Owner VIVO MOBILE COMM CO LTD
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