Multimedia Data Transmitter Using Digital Signal Processing Logic
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Solution Overview
Problem
Conventional multimedia data transmission systems using optical cables are limited in their ability to efficiently transmit diverse multimedia data such as images, voice, and control signals over short or long distances, and are restricted to specific applications and interfaces, leading to inefficiencies and high costs.
Innovation Solution
A multimedia data transmitter that includes digital signal processing logic to convert various data formats into a single transmission format, interface control logic to generate control signals for data transmission, and an optical driver for optical transmission, enabling the simultaneous transmission of multimedia data and interface signals over optical cables, including both plastic and glass optical cables.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If conventional optical transmission ICs are used for long distance data transmission, then transmission distance is improved, but device complexity and cost increase
Solution Approach 1:
The patent combines multiple transmission modes (LVDS for short distance and TMDS for long distance) into a single integrated optical transmission IC. This merging allows the device to handle both near and far distance transmission requirements without needing separate chips, thereby reducing overall device complexity while maintaining long distance capability
Solution Approach 2:
The optical transmission IC is designed with multi-functionality to support both LVDS and TMDS transmission modes within a single device. This universal design enables the same chip to serve multiple transmission distance requirements and application scenarios, eliminating the need for separate dedicated chips and reducing system complexity
2Adaptability or versatility
If multiple transmission modes are integrated into one chip, then adaptability is improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent segments the transmission functionality into distinct LVDS and TMDS transmission mode blocks within the single IC. This segmentation allows each mode to be optimized independently for its specific transmission requirements while being manufactured as part of an integrated chip, balancing adaptability with manufacturing feasibility
Solution Approach 2:
The integrated IC uses parameter changes in the transmission mode selection mechanism to adapt between different transmission standards. By controlling operational parameters such as signal voltage levels, timing characteristics, and protocol settings, the single chip can switch between LVDS and TMDS modes without requiring physical reconfiguration, thereby achieving high adaptability while maintaining manufacturing precision
3Object-affected harmful factors
If optical cables are used for long distance transmission, then electromagnetic interference is reduced, but cable configuration complexity increases
Solution Approach 1:
The patent introduces an intermediary interface layer that converts between optical transmission signals and various standard interface signals (LVDS, TMDS). This intermediary mechanism simplifies cable configuration by providing standardized connection interfaces while maintaining the electromagnetic interference benefits of optical transmission over long distances
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enhances data transmission efficiency by integrating multiple transmission modes, reducing electromagnetic interference, and expanding the application range of optical cables to support various multimedia data and interfaces, while simplifying cable configurations and reducing material and resource demands.
Implementation Method 1
an optical driver, performing optical transmission of the serial data generated by the digital signal processing logic
Implementation Method 2
transmitting the signal to an optical cable (a plastic optical cable of 250 μm or a glass optical cable of 62.5 μm)
Data Source
AI summary
Disclosed is a multimedia data transmitter that can transmit multimedia data such as image, voice and control signal whose media are different from each other through an optical transmission medium such as plastic or glass optical cables to a short or long distance area. The multimedia data transmitter includes: a digital signal processing logic, converting multimedia data transmitted in different transmission formats into data of a single transmission format, converting parallel image data into serial image data; an interface control logic, generating a control signal for transmission of the data converted by the digital signal processing logic, interfacing interface data; an optical driver, performing optical transmission of the serial data generated by the digital signal processing logic according to the control signal generated by the interface control logic, processing an optical-to-electrical converted signal.