A method for preventing mutual interference of signals of remote controller and infrared transponder

Abstract

The invention provides a method for preventing mutual interference of signals of a remote controller and infrared forwarding equipment. The infrared forwarding equipment is used for converting a control signal transmitted by a television set into a corresponding infrared signal and forwarding the infrared signal to another controlled device. When the infrared forwarding equipment receives an infrared signal transmitted by the remote controller of the television set and needs to forward an infrared signal with the same carrier wave frequency as that of the infrared signal of the remote controller of the television set at the same time, a delay of T time needs to be performed on the infrared signal to be forwarded, so the controlled device will not receive two infrared signals with the same carrier wave frequency simultaneously at the same time point, and therefore mutual interference of signals is avoided.

Description

technical field [0001] The invention relates to the field of home appliances, in particular to a method for preventing mutual interference of signals of a remote controller and an infrared forwarding device, an infrared forwarding device and a television. Background technique [0002] At present, there are ordinary infrared remote controllers and Andriod smart TVs with corresponding APK applications installed on the market, which can be connected to a separate module that can emit infrared signals at omnidirectional angles through wired or wireless connections to control other infrared devices. . [0003] like figure 1 As shown, the ordinary infrared remote control and the corresponding Andriod smart TV (which needs to be connected to the cloud server) are used as the downlink center of infrared data. All data are read and downloaded from the server through the TV as an intermediary. The remote control passes The corresponding buttons operate the TV; the infrared forwardin...

AI Technical Summary

Problems solved by technology

[0004] Since the infrared signal is emitted through the infrared transmitter during the transmission process, due to the usage habits, the infrared receiving windows of the TV and the set-top box in the general family are on the same side as the remote control of the TV, and the remote control of the TV When the transmitter is transmitting the signal, the infrared receiving head of the set-top box may receive the infrared signal of the TV remote control, and most of the current infrared signals are loaded on a carrier with a frequency of 38K. If they are on the same carrier, the It will lead to the superposition of useful signals and cause the code value of the signal to be incorrect

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