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Projection signal processing method and device

A signal processing and projection technology, applied in the field of communications, can solve problems such as excessive inrush current of projectors, terminal shutdown, reset, etc., to avoid the risk of equipment shutdown or reset, and to improve user experience.

Active Publication Date: 2019-07-09
ZTE CORP
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  • Abstract
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Problems solved by technology

[0005] The present invention provides a projection signal processing method and device to at least solve the problem in the prior art that the terminal is shut down or reset due to excessive surge current of the projector

Method used

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  • Projection signal processing method and device
  • Projection signal processing method and device
  • Projection signal processing method and device

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Embodiment Construction

[0024] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0025] In this embodiment, a projection signal processing method is provided, figure 1 is a flowchart of a projection signal processing method according to an embodiment of the present invention, such as figure 1 As shown, the process includes the following steps:

[0026] Step S102, collecting the power supply voltage of the terminal;

[0027] Step S104, collecting the voltage of the projection signal of the projector on the terminal;

[0028] Step S106, judging whether to attenuate and output the projection signal according to the power supply voltage and / or the voltage of the projection signal.

[0029] Through the above steps, the power supply voltage of the terminal is collected, the voltage...

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Abstract

A method and apparatus for processing a projection signal, which solve the problem in the prior art that a terminal is powered off or reset due to excessively large impact current of a projector, realize optimized control of the terminal on the usage of battery power, avoid the risk of terminal power-off or reset due to a sudden drop in the battery power caused by projection impact, and improve user experience. The method comprises: acquiring a supply voltage of a terminal (S102); acquiring the voltage of a projection signal of a projector on the terminal (S104); and determining whether to perform attenuated output on the projection signal according to the supply voltage and / or the voltage of the projection signal (S106).

Description

technical field [0001] The present invention relates to the field of communications, and in particular, to a projection signal processing method and device. Background technique [0002] At present, many portable terminals are equipped with projection devices, which can project and magnify the information on the terminal screen onto the background, which is convenient for the user to watch, so that the terminal can be placed away from the user's eyes, and multiple people can watch it at the same time. [0003] Portable terminals all use rechargeable batteries to provide power supply. When equipped with a projection device, there will be a problem, that is, the voltage of the battery will affect the increased voltage requirement of the projection device in some cases. No matter when the projection device is powered directly from the battery or by increasing the voltage of the battery through a voltage booster module, under high-quality projection output power, or when the pro...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/74G05F1/10G05B19/042G01R31/36
CPCG01R31/36G05B19/042G05F1/10H04N5/74
Inventor 田军邓庆田
Owner ZTE CORP
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