HDMI Switching Device for Automatic Port Mapping
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Solution Overview
Problem
Home entertainment systems are complex to set up and control due to the difficulty in identifying and managing HDMI ports, especially with multiple devices connected, leading to cumbersome operations and the need for multiple remote controls.
Innovation Solution
A system and method that includes a switching device with a switch circuit to automatically select and connect HDMI ports based on commands, such as voice commands or remote control signals, to simplify device setup and control, and automatically identify and map devices to ports.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual configuration of HDMI ports is used to identify device connections, then device port identification accuracy is improved, but setup complexity and time consumption increase
Solution Approach 1:
The system performs automatic device detection and port mapping without requiring user intervention. The switching device autonomously identifies connected devices, determines their types, and creates the device-to-port mapping table, eliminating the need for manual configuration while maintaining accurate port identification
Solution Approach 2:
The system uses detection signals sent to connected devices and the responses received to automatically build the device-to-port mapping. This feedback mechanism allows the switching device to accurately identify which devices are connected to which ports without manual input, resolving the contradiction between accuracy and time efficiency
2Adaptability or versatility
If multiple remote controls are used to control different devices, then device control functionality is improved, but ease of operation deteriorates
Solution Approach 1:
The switching device serves multiple functions: it acts as an HDMI switch for video signals, a control signal router for remote commands, and a device manager for maintaining mapping information. This single device consolidates the functionality of multiple remote controls, allowing users to control different devices through one universal interface
Solution Approach 2:
The switching device acts as an intermediary between the user and multiple connected devices. Instead of the user directly operating multiple device-specific remote controls, all control signals are routed through the switching device, which translates and forwards appropriate commands to the target devices based on the current active port and device-to-port mapping
3Measurement precision
If HDMI ports are manually configured to identify input and output ports, then port configuration accuracy is improved, but device complexity increases
Solution Approach 1:
The switching device automatically detects device connections and configures port roles (input/output) without requiring user intervention. The system sends detection signals to connected devices, analyzes their responses, and autonomously determines which ports are inputs and which are outputs, eliminating complex manual configuration steps
Data Source
AI summary
Embodiments described herein enable a switching device to automatically select AV port(s) coupled to electronic device(s) that a user would like to use to watch and/or listen to content. The AV port(s) may be automatically selected based on receiving a command, determining that a particular remote control device is being used, and/or determining that a particular piece of content has been selected. Upon detection of such events, a source device for providing content is identified from among a plurality of source devices. Thereafter, an AV port from among a plurality of AV ports to which the identified source device is connected is identified. The identified AV port is then selected so that the identified source device becomes connected to an AV port to which a sink device is connected. In this way, the switching device can provide content from the identified source device to the sink device for presentation thereby.