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Method and device for removing interference and smart television

A technology of interfering pulses and voltages, applied in the field of television, can solve problems such as data transmission errors, and achieve the effect of ensuring data transmission

Active Publication Date: 2016-02-24
SHENZHEN TCL DIGITAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a method, device and smart TV for removing interference, aiming to solve the technical problem of data transmission error caused by pulse interference of IIC bus

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  • Method and device for removing interference and smart television
  • Method and device for removing interference and smart television

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Embodiment Construction

[0039] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0040] The invention provides a method for removing interference. refer to figure 1 , figure 1 It is a schematic flowchart of the first embodiment of the interference removal method of the present invention.

[0041] In this embodiment, the method for removing interference includes:

[0042] Step S10, when detecting the read / write data command, determine whether there is an interference pulse on the current internal integrated circuit IIC bus;

[0043] Wherein, the read / write data command refers to a data command sent by the main chip of the smart TV to an external device to request to read / write data stored in the device. In this embodiment, when the read / write data command is detected, the voltage of the current clock pulse can be obtained, and then it can be determined whether the voltage of the obtained clock ...

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Abstract

The invention discloses a method for removing interference, and includes the steps of: when a data reading / writing instruction is detected, determining whether disturbing pulses exist in an inter-integrated circuit (IIC) bus at present; when disturbing pulses exist in the IIC bus at present, monitoring serial data (SDA) bus pulses and clock pulses of the IIC bus in real time; and when the SDA bus pulses and the clock pulses satisfy preset conditions, adjusting the voltage of the clock pulses. The invention also discloses a device for removing interference and a smart television. The method and device for removing interference realizes the adjustment of the voltage of the clock pulses when the disturbing pulses exist in the IIC bus, avoids the problem of an error of data transmission between an external device and a master chip of a smart television caused by changes of starting conditions or stopping conditions of an IIC bus protocol caused by changes of SDA bus pulses and clock pulses due to disturbing pulses, and ensures data transmission of the IIC bus through correction of high-low levels of the clock pulses.

Description

technical field [0001] The invention relates to the technical field of televisions, in particular to a method and device for removing interference and a smart television. Background technique [0002] With the development of the smart TV system, the functions of the smart TV are becoming more and more abundant, which leads to the increase of many external devices corresponding to these functions on the main board of the smart TV. -IntegratedCircuit, internal integrated circuit) bus connection. [0003] However, as more and more devices are mounted, various pulse level interferences will often appear on the IIC bus, which will cause the SDA (Serial Data, serial data) bus pulse and clock pulse of the IIC bus to change, resulting in The data transmission error between the external device and the main chip of the smart TV may even cause the slave device to be stuck and unable to respond to the request of the main chip. Contents of the invention [0004] The invention provide...

Claims

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Application Information

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IPC IPC(8): H03K5/1252H04N21/436
CPCH03K5/1252H04N21/436
Inventor 王云华
Owner SHENZHEN TCL DIGITAL TECH CO LTD
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