Audio Video Receiver File Recovery via Dual Interface
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Solution Overview
Problem
Existing audio/video reception equipment update systems are inefficient due to the long time required to update the operating system, especially in devices with narrow bandwidth satellite reception interfaces.
Innovation Solution
The use of multiple diffusion interfaces, including an unconnected broadcast interface and an IP interface, allows simultaneous data acquisition in both directions, optimizing the recovery of target files such as operating system updates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If data is received via a single narrow bandwidth broadcast interface, then the system maintains simplicity in interface configuration, but the update time becomes excessively long
Solution Approach 1:
The patent divides the data reception process into two parallel segments: one using the broadcast interface to receive packets in descending order, and another using the IP interface to request and receive packets in ascending order. This segmentation allows simultaneous data acquisition from multiple sources, reducing overall update time while maintaining manageable interface complexity through modular reception handling.
Solution Approach 2:
The patent introduces a new dimension to data reception by adding the IP interface as a parallel communication channel to the existing broadcast interface. This dimensional expansion enables concurrent data transmission paths, transforming the single-channel sequential reception into a multi-channel parallel reception system, thereby significantly reducing update time.
2Productivity
If data packets are received in sequential order from a single interface, then the reception process is simple to manage, but the overall data acquisition speed is limited by the narrow bandwidth
Solution Approach 1:
The patent implements dynamic reception strategies where the system adaptively manages two different reception modes: passive reception of descending-order packets from the broadcast interface and active requesting of ascending-order packets from the IP interface. The system dynamically coordinates these parallel reception processes, adjusting packet assembly operations to maintain optimal data acquisition speed while managing the increased process complexity through structured packet handling.
Solution Approach 2:
The patent applies preliminary action by pre-allocating storage buffers for packets received from both interfaces and pre-establishing the packet assembly framework before data reception begins. This preparation enables efficient parallel processing of packets from both interfaces without requiring complex real-time coordination, thereby increasing data acquisition speed while keeping reception management manageable.
3Loss of time
If the broadcast channel uses narrow bandwidth for profitability reasons, then resource allocation is optimized for existing services, but the operating system recovery time becomes unacceptably long
Solution Approach 1:
The patent merges two different communication interfaces (broadcast and IP) with different bandwidth characteristics to achieve the goal of fast OS recovery. The broadcast interface continues to serve its existing profitability-optimized narrow bandwidth function, while the IP interface provides supplementary high-speed data transfer capability. This merging allows the system to maintain resource allocation optimization for existing services while achieving acceptable recovery times through combined interface performance.
Data Source
Figure 1
Figure 2~3
AI summary
The general principle of the invention is to make data available simultaneously: - in the "normal" direction, from the beginning to the end, on an IP interface via a file server (HTTP / FTP/etc.); - in the "reverse" direction, from the end to the beginning, on a broadcast interface via a DSM-CC carousel, referred to as a dedicated channel. Thus the audio/video reception equipment can efficiently recover the data by simultaneously using two communication interfaces including at least one unidirectional interface.