Mobile HDMI Interface Multiplexing for Direct HD Transfer
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Solution Overview
Problem
Conventional HDMI technologies limit direct high-definition media communication between mobile devices and HD-compatible devices, requiring intermediate steps like USB downloads and HDMI conversions, which hinder seamless data transmission and compatibility.
Innovation Solution
A method and system that merge multiple HDMI channels into a single channel for mobile devices, enabling direct high-definition media content transfer through a mobile high-definition multimedia interface (HDMI-M), using multiplexing and de-multiplexing techniques to facilitate HDMI-M communication, and reducing the number of wires in HDMI cables to accommodate smaller devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple HDMI channels are transmitted separately, then high-definition media quality is maintained, but device complexity and cable wire count increase
Solution Approach 1:
The patent merges multiple HDMI data channels (TMDS0, TMDS1, TMDS2) into a single composite data channel by multiplexing them in the time domain. Each channel is transmitted sequentially rather than simultaneously, reducing the physical wire count while maintaining the ability to transmit high-definition video and audio data. The receiver demultiplexes the composite stream to recover individual channel data.
Solution Approach 2:
The patent transitions from spatial multiplexing (multiple wires for multiple channels) to temporal multiplexing (single wire with time-divided channels). By adding the time dimension to data transmission, the system reduces spatial requirements (wire count) while preserving data integrity and quality.
2Adaptability or versatility
If conventional USB connection is used for mobile devices, then device compatibility is maintained, but direct high-definition media communication is prevented
Solution Approach 1:
The patent creates a universal interface that combines the best features of USB and HDMI. The HDMI-M interface can operate in multiple modes: direct high-definition media transmission between mobile devices and display devices, or as a bridge to USB for legacy device compatibility. This multi-functional approach allows a single interface to serve multiple purposes without requiring separate connections.
Solution Approach 2:
The patent introduces an intermediary translation layer that converts between USB protocols and HDMI-M protocols. This mediator enables legacy USB devices to communicate through the new HDMI-M interface, maintaining backward compatibility while enabling advanced high-definition media transmission capabilities.
3Adaptability or versatility
If intermediate USB download and conversion steps are used, then device compatibility is ensured, but data transmission efficiency is reduced
Solution Approach 1:
The patent performs preliminary action by establishing direct HDMI-M communication channels between mobile devices and display devices before data transmission begins. This eliminates the need for intermediate USB download and conversion steps, allowing data to flow directly from source to display without temporary storage or protocol conversion delays.
Data Source
AI summary
A method, apparatus and system are provided for generating and facilitating Mobile High-Definition Multimedia Interface. In one embodiment, an apparatus includes a transmitter configured to merge multiple channels of a high-definition interface into a single channel to generate a mobile high-definition interface, the mobile high-definition interface configured to facilitate carrying of high-definition media content in a mobile device. The apparatus further includes a receiver coupled with the transmitter, the receiver configured to receive the single channel, and to unmerge the single channel into the multiple channels.