HDMI Port Master-Slave Switching for Dual Functionality
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Solution Overview
Problem
Conventional HDMI technology requires multiple ports for both input and output functions, increasing production costs and user complexity due to the need for port identification.
Innovation Solution
A high-definition multimedia interface apparatus with a single HDMI port that uses a switch circuit and control circuit to selectively connect as either a master or slave end, allowing for dual functionality without additional ports.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an electronic apparatus includes two HDMI connection ports (one for output, one for input), then it supports both data output and data reception functions, but the number of communication ports increases and production costs increase
Solution Approach 1:
The single HDMI connection port is designed to perform both data output and data reception functions by dynamically switching between master and slave modes. The control circuit detects the connection state and automatically configures the port's functional mode, eliminating the need for separate dedicated input and output ports while maintaining full bidirectional communication capability.
Solution Approach 2:
The HDMI connection port's functional configuration is made dynamic through the control circuit that automatically switches between master and slave modes based on real-time detection of the connected device's type. This dynamic reconfiguration allows the same physical port to adapt its behavior (output-oriented or input-oriented) according to the connection context, resolving the contradiction between versatility and port quantity.
2Adaptability or versatility
If an electronic apparatus includes two HDMI connection ports, then it supports both data output and data reception functions, but production costs increase
Solution Approach 1:
By designing the HDMI connection port with multi-functional capability through master-slave mode switching, the patent eliminates the need to manufacture and assemble two separate physical ports. This reduces component quantity, assembly complexity, and overall production cost while maintaining the ability to perform both data output and reception functions.
Solution Approach 2:
The patent merges the functions of two separate HDMI ports (one for output, one for input) into a single unified port that can dynamically perform both roles. This consolidation reduces the number of physical components required, simplifies the manufacturing process, and lowers production costs while preserving full bidirectional communication functionality.
3Adaptability or versatility
If an electronic apparatus includes two HDMI connection ports, then it supports both data output and data reception functions, but user complexity increases due to the need for port identification
Solution Approach 1:
The single HDMI connection port with automatic master-slave mode detection eliminates the need for users to identify which port is for input and which is for output. The control circuit automatically detects the connected device type and configures the port's functional mode, making the apparatus user-friendly while maintaining full bidirectional functionality.
Solution Approach 2:
The HDMI connection port performs self-configuration by automatically detecting the connection state and switching between master and slave modes without user intervention. This self-service capability eliminates the need for users to manually identify or configure port functions, significantly reducing operational complexity and improving ease of use.
Data Source
AI summary
An HDMI apparatus and a method for controlling the same are provided. The HDMI apparatus includes an HDMI connection port, a control circuit, a master circuit, a slave circuit, and a switch circuit. The master circuit and the slave circuit are respectively configured to generate a master HDMI output signal and a slave HDMI output signal. The switch circuit is selectively conducted in a first conductive state and a second conductive state according to a control signal generated by the control circuit. In the first conductive state, the switch circuit is electrically connected to the master circuit, so that the master HDMI output signal is output through the HDMI connection port. In the second conductive state, the switch circuit is electrically connected to the slave circuit, so that the slave HDMI output signal is output through the HDMI connection port.