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Method and device for removing interference, and smart TV

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: 2018-09-21
SHENZHEN TCL DIGITAL TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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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 TV
  • Method and device for removing interference, and smart TV
  • Method and device for removing interference, and smart TV

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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

A method and device for eliminating interference and a smart television set. The method comprises: determining whether an interference pulse exists in a current inter-integrated circuit (IIC) bus when sensing a read / write data instruction (S10); monitoring in real time a serial data (SDA) bus pulse and a clock pulse of the IIC bus when an interference pulse exists in the current IIC bus (S20); and adjusting the voltage of the clock pulse when the SDA bus pulse and the clock pulse satisfy a predetermined condition (S30). Voltage adjustment for a clock pulse when an interference pulse exists in an IIC bus is implemented, thereby avoiding the problem of data transmission error between an external apparatus and a main chip of a smart television set caused by a change in a start or stop condition of an IIC bus protocol due to a change in an SDA bus pulse and the clock pulse because of the interference pulse; and data transmission of the IIC bus is ensured by correcting the high-low level of the clock pulse.

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. -Integrated Circuit, 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. This leads to data transmission errors between the external device and the main chip of the smart TV, and even causes the slave device to be stuck and unable to respond to the request of the main chip. Contents of the invention [0004] The invention provid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03K5/1252H04N21/436
CPCH03K5/1252
Inventor 王云华
Owner SHENZHEN TCL DIGITAL TECH CO LTD
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