Multipath Reception Apparatus Re-order Timing Optimization

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Solution Overview

Problem

In multipath transmission, existing techniques struggle to synchronize re-order processing across different communication paths, leading to delays in media data reproduction due to varying communication zones and delay times.

Innovation Solution

A reception apparatus with multiple reception units and a generation unit that determines the completion of data units across paths to optimize re-order timing, ensuring that re-order processing starts only when all necessary data is received, thereby minimizing delays and improving real-time reproduction performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If re-order processing is performed after receiving all data units across multiple paths, then data completeness is ensured, but reproduction delay increases

Engineering Contradiction:
Improvedata completenessVSAvoidreproduction delay
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The system performs preliminary actions by receiving and buffering data units from multiple paths in parallel before re-order processing. Each reception unit continuously receives data units and stores them in reception buffers, preparing the data in advance so that re-order processing can start immediately when the last data unit is received, minimizing reproduction delay while ensuring data completeness

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The reception apparatus is divided into multiple reception units, each corresponding to a specific communication path. Each reception unit independently receives and buffers data units from its assigned path, allowing parallel processing and eliminating the need to wait for all paths to complete reception before starting re-order processing

Inventive Principle:
Principle #1Segmentation

2Productivity

If multiple reception units receive data in parallel from different paths, then reception speed increases, but synchronization difficulty increases

Engineering Contradiction:
Improvereception speedVSAvoidsynchronization complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

A generation unit acts as an intermediary between multiple reception units and the re-order processing unit. The generation unit receives data units from all reception units, determines which one is the last data unit based on sequence information, and triggers re-order processing at the appropriate timing, simplifying the synchronization complexity

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The generation unit uses feedback from sequence information in data units to determine reception completion. By examining sequence numbers and comparing them across all reception units, the system identifies when the last data unit has been received from all paths, enabling synchronized re-order processing without complex coordination protocols

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS9826282B2Reception apparatus, reception method, and recording medium
Publication Date: 2017.11.21 CANON KK
  • US9826282B2 patent drawing
  • US9826282B2 patent drawing
  • US9826282B2 patent drawing

AI summary

A reception apparatus includes a plurality of reception units each corresponding to a communication path among a plurality of communication paths, and a generation unit configured to, in a case where the plurality of reception units receives a first data unit and a second data unit, generate the first data unit at a first time corresponding to a time at which the plurality of reception units has completed reception of data forming the first data unit, and generate the second data unit at a second time corresponding to a time at which the plurality of reception units has completed reception of data forming the second data unit.