Reception Buffer Time Adjustment for Transmission Delay
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Solution Overview
Problem
Conventional systems fail to account for differences in transmission delays across multiple transmission devices, leading to suboptimal image and transmission quality due to uniformly set reception buffer times, resulting in unnecessary waiting times and deteriorated content quality.
Innovation Solution
An information processing apparatus that adjusts reception buffer times based on differences in transmission delays, allowing for dynamic setting of parameters such as encoding block reception waiting time, retransmission packet waiting time, and network jitter handling buffer time to improve image and transmission quality without increasing delay.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a common reception buffer time is used for all transmission devices, then the system is simple to operate, but transmission quality and image quality deteriorate due to not accounting for different transmission delays
Solution Approach 1:
The patent applies local quality by setting different reception buffer times for each transmission device based on its specific transmission delay characteristics. Instead of using a uniform buffer time for all devices, the system individually optimizes the buffer time parameter (Tbuf) for each device according to its network conditions, thereby improving transmission quality without complicating the overall system operation.
2Reliability
If reception buffer time is set independently for each transmission device, then transmission quality improves, but device complexity increases
Solution Approach 1:
The patent implements self-service by enabling each transmission device to autonomously determine and notify its own transmission delay characteristics to the reception device. The reception device then automatically calculates and sets the appropriate reception buffer time for each device based on the provided delay information, eliminating the need for complex manual configuration and reducing system complexity while maintaining optimal transmission quality.
3Reliability
If a long reception buffer time is used, then synchronization reliability improves, but unnecessary waiting time increases causing content quality deterioration
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the reception buffer time parameter based on the actual transmission delay of each device. By setting the buffer time to match the specific delay characteristics rather than using a fixed long duration, the system achieves reliable synchronization while minimizing unnecessary waiting time, thus preventing content quality deterioration.
4Device complexity
If transmission delay differences are not considered, then the encoding and QoS control processes are simplified, but image quality and transmission quality cannot be improved
Solution Approach 1:
The patent implements preliminary action by having each transmission device measure and report its transmission delay characteristics before the actual data transmission begins. The reception device uses this advance information to pre-calculate and set the optimal reception buffer time for each device, allowing the encoding and QoS control processes to proceed with simplified logic while still achieving high image quality through proactive parameter optimization.
Data Source
AI summary
The present invention relates to an information processing apparatus, a method, and a program capable of suppressing deterioration of content quality. An integrated reception buffer time adjustment unit 114 obtains a maximum transmission delay time that is the longest delay time among the transmission delays of data transmission performed by each reception unit 113. The reception buffer time setting unit 208 calculates a reception buffer time using the maximum transmission delay time, a transmission delay time of the data transmission by the reception unit 113, and a prescribed reception buffer time. The reception buffer time setting unit 208 sets various delay times and waiting times such as a variable compression encoding delay time, a redundant encoding block reception waiting time, an ARQ retransmission packet waiting time, and a network jitter handling buffer time from the reception buffer time. The present invention can be applied to an information processing apparatus, for example.