Wireless HDMI Headunit for Signal Extraction and Transmission
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Solution Overview
Problem
The placement of audio/video components near the television is limited by the need for wired connections, particularly HDMI cables, which can be unsightly and require invasive cabling solutions when the TV is mounted on a wall, and existing wireless solutions fail to maintain high-quality encrypted HDMI signals.
Innovation Solution
A wireless theater system that uses a headunit to process and transmit HDMI signals wirelessly to a soundbar, which then relays the signal to the TV via a single HDMI cable, employing a lossless protocol like wireless HDMI to maintain signal integrity and allow components to be placed anywhere in the room.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If wired HDMI connections are used to maintain high-quality encrypted signals, then picture quality is improved, but cable clutter and placement restrictions worsen
Solution Approach 1:
The patent extracts the HDMI connection requirement from the television and relocates it to a head unit. The head unit receives encrypted HDMI signals from audio/video components, processes them, and transmits decoded video and audio separately via wireless and wired connections respectively. This extraction allows the television to be freed from multiple HDMI cable connections while maintaining picture quality through the head unit's processing capability.
Solution Approach 2:
The head unit serves as an intermediary device between the audio/video components and the television. It receives encrypted HDMI signals, processes the video and audio streams, and distributes them to appropriate outputs. This intermediary function enables the system to maintain high-quality encrypted signal reception while reducing the number of cables connected to the television and allowing flexible component placement.
2Adaptability or versatility
If audio/video components are placed far from the television, then placement flexibility is improved, but signal transmission quality worsens due to wireless interference
Solution Approach 1:
The patent segments the HDMI signal into separate video and audio streams at the head unit. The video signal is transmitted wirelessly to the television using a lossless protocol, while the audio signal is transmitted separately. This segmentation allows the system to handle video transmission with high fidelity over wireless connection, enabling component placement flexibility without compromising video quality.
3Device complexity
If in-wall cabling is used to hide cables, then aesthetic appearance is improved, but installation complexity and cost worsen
Solution Approach 1:
The patent extracts the cabling requirement from the installation structure by using a wireless transmission system. Instead of requiring invasive in-wall HDMI cabling, the system uses a head unit to process signals and transmit video wirelessly to the television. This extraction eliminates the need for structural modifications while achieving a clean aesthetic appearance.
Solution Approach 2:
The patent replaces the mechanical cabling system with a wireless transmission system. Instead of physically running HDMI cables through walls or along surfaces, the system uses wireless communication protocols to transmit video signals from the head unit to the television. This substitution eliminates the need for invasive installation while maintaining signal quality.
Data Source
AI summary
A system and method for wireless transmission of high-definition audio and video signals include providing lossless raw video data wirelessly to a soundbar from a headunit to eliminate the multitude of wires that traditionally connect to a television in a home theater. In one embodiment, a wireless transmitter in the headunit transmits a wireless HDMI signal as the lossless raw video data.