Transmission Device Null Packet Deletion for Broadcasting Efficiency
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Solution Overview
Problem
Current broadcasting technologies face challenges in controlling the code amount within a fixed bit rate while maintaining optimal image quality and minimizing delay, especially with the presence of null packets that reduce transmission efficiency.
Innovation Solution
A transmission device generates encoded signals using a predetermined fixed bit rate, inserting non-realtime data when the code amount is insufficient, and includes a null packet deletion unit to optimize code allocation, allowing for efficient transmission and reception by replacing null packets with asynchronous signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If null packets are inserted to adjust code amount to fixed bit rate, then the fixed bit rate constraint is satisfied, but transmission efficiency is reduced
Solution Approach 1:
The patent extracts and removes null packets from the transmitted signal by implementing a null packet deletion unit that detects and eliminates null packets before transmission. This resolves the contradiction by eliminating the harmful elements (null packets) that were previously necessary to maintain fixed bit rate, thereby improving transmission efficiency while maintaining reliability through alternative code amount control mechanisms.
Solution Approach 2:
The patent changes the parameter of code amount control from fixed bit rate with null packet insertion to variable bit rate with quality optimization. By allowing the code amount to vary dynamically based on content characteristics and implementing quality control mechanisms, the system achieves both efficient transmission (reduced null packets) and reliable delivery (maintained quality standards).
2Manufacturing precision
If code amount is controlled to optimize image quality within fixed bit rate, then image quality is optimized, but transmission efficiency decreases due to null packet insertion
Solution Approach 1:
The patent implements dynamic code amount control that adapts to content characteristics in real-time. Instead of using static fixed bit rate allocation with null packet insertion, the system dynamically adjusts the code amount based on scene complexity, motion intensity, and other content-specific parameters. This dynamic approach eliminates the need for null packets while maintaining optimal image quality, thereby resolving the contradiction between manufacturing precision and productivity.
Solution Approach 2:
The patent incorporates feedback mechanisms that monitor transmission efficiency and image quality metrics, then adjust encoding parameters accordingly. By using feedback from the transmission process and reception quality assessments, the system optimizes the balance between image quality and transmission efficiency, eliminating the need for null packet insertion while maintaining quality standards.
3Quantity of substance
If null packet deletion is implemented to widen bandwidth, then more code amount can be generated, but control of optimum code amount while ensuring realtime delay becomes difficult
Solution Approach 1:
The patent segments the code amount control into multiple independent components: a null packet deletion unit that removes null packets, a code amount calculation unit that computes the available code amount, and a quality control unit that manages image quality. This segmentation simplifies the overall control complexity by breaking down the difficult task of optimum code amount control into manageable, independent functions that can be implemented and adjusted separately.
Solution Approach 2:
The patent introduces intermediary control mechanisms that mediate between the null packet deletion process and the code amount generation. The intermediary units include a code amount notification unit that communicates available code amount information and a quality control unit that acts as a mediator to balance code amount allocation with quality requirements. These intermediaries simplify the control complexity by providing structured interfaces and standardized control protocols.
Data Source
AI summary
The present technology relates to a transmission device, a transmission method, a reception device, and a reception method that can improve transmission efficiency. An encoded signal is generated based on realtime data indicated by a waveform L using a predetermined fixed bit rate as a maximum code amount Sx and the encoded signal into which non-realtime data with an insufficient code amount is inserted is transmitted at the fixed bit rate, as indicated by a range Z12, when a code amount of the generated encoded signal is insufficient for the maximum code amount Sx. The present technology can be applied to broadcasting communication.