HDMI (High Definition Multimedia Interface) wireless transmitter and signal processing method

Abstract

The invention discloses an HDMI (High Definition Multimedia Interface) wireless transmitter and a signal processing method. The HDMI wireless transmitter comprises an HDMI signal access module, a control module, keys, an indicator lamp module and a transmitting module, wherein the HDMI signal access module is used for identifying a current channel according to the equipment access state and signal state of an HDMI channel, and outputting an HDMI audio / video signal to the transmitting module after performing HDCP (High-bandwidth Digital Content Protection) decryption processing on an HDMI signal input by the current channel; and the transmitting module is used for modulating the HDMI audio / video signal to a preset carrier signal and transmitting the modulated HDMI audio / video signal. Thus, wireless transmission of full-high-definition signals, even ultrahigh-definition signals is realized; the definitions of wireless transmission signals are increased greatly; and the time delay is very small. Meanwhile, the control module is used for controlling the keys and the on / off states of indicator lamps of the indicator lamp module according to the equipment access state and the signal state, so that a user can get the signal transmission state of the HDMI wireless transmitter conveniently.

Description

technical field [0001] The invention relates to the technical field of television, in particular to an HDMI wireless transmitter and a signal processing method. Background technique [0002] At present, a variety of peripheral interfaces are set on the TV, which can be connected to different source devices (such as set-top boxes, DVDs, mobile phones, etc.). However, connecting the TV to the source device through a connecting cable will affect the overall appearance, and at the same time, the source device needs to be placed at a relatively short distance from the TV, and the position is relatively fixed and the placement flexibility is small. The wireless signal transmission method can avoid the problems caused by the connection line method, and the source equipment is placed flexibly, so it has been rapidly developed and applied. At present, the common wireless transmission methods between the source equipment and the TV are mainly based on 2.4G / 5G, such as WIFI. However,...

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Problems solved by technology

[0003] In view of the shortcomings of the above-mentioned prior art, the purpose of the present invention is to provide an HDMI (High Definition Multimedia Interface, high-definition multimedia interface) wireless transmitter and a signal processing method to solve the problems caused by the wired connection of the existing source equipment. The location is limited, and the bandwidth of the wireless connection is limited

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