HDMI Data Compression for Synchronous Image and User Transmission
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Solution Overview
Problem
Current multimedia standards like HDMI lack channels for synchronously transmitting user data, limiting the utilization of high bandwidth for real-time synchronization requirements in applications such as overlay processing for multimedia data from computers or the Internet.
Innovation Solution
A method and device for compressing both image and user data into a single transmission unit, allowing for synchronous transmission even in inadequate channels, enabling content mixture processing and improved user experience through multipath data source synchronization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two separate transmission channels are used for image data and user data, then real-time synchronous transmission can be achieved, but the device complexity and channel requirements increase
Solution Approach 1:
The patent merges image data and user data into a single transmission channel by interleaving their bits. The image data bits and user data bits are alternately arranged in the transmitted signal, allowing both data types to share the same physical channel while maintaining their synchronization and integrity.
Solution Approach 2:
The patent segments the transmission unit into alternating portions of image data bits and user data bits. Each transmission unit is divided into a structured pattern where image data and user data are separated into distinct bit positions, enabling the receiver to correctly identify and process each data type independently.
2Adaptability or versatility
If user data is transmitted for every pixel, then overlay processing capability is improved, but the data amount and bandwidth requirement increase
Solution Approach 1:
The patent combines image data and user data at the bit level within the same transmission unit. By interleaving the bits of both data types, the system transmits both simultaneously over the same channel without requiring separate bandwidth allocation, thus maintaining overlay processing capability while reducing overall bandwidth requirements.
3Productivity
If HDMI interface channels are used for image data transmission, then high bandwidth is achieved, but no channel is available for user data transmission
Solution Approach 1:
The patent utilizes the existing high-bandwidth HDMI interface by merging image data and user data transmission into a single channel. The interleaved bit structure allows both data types to share the HDMI channel's bandwidth, enabling user data transmission without requiring additional physical channels while maintaining the high bandwidth capability for image data.
Data Source
AI summary
The embodiments of the invention provide a method and device for sending and receiving data and a data transmission system thereof. The sending method includes the following steps: acquiring a first data corresponding to a transmission unit with a specific transmission format, wherein the first data has a first data amount which is equal to the data amount of the transmission unit; acquiring a second data which corresponds to the transmission unit and has a second data amount; obtain a compressed data with a compressed data amount, wherein the compressed data amount is equal to or smaller than the data amount of the transmission unit; sending the compressed data.