Cloud Audio Connection Loss Detection via Embedded Key Sequences
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Solution Overview
Problem
Existing multimedia systems in vehicles face challenges in detecting a loss of connection or crash in cloud-based signal processing, leading to potential audio signal corruption and the need for a quick and reliable mechanism to switch to local processing.
Innovation Solution
A method involving encoding a predefined key sequence into the multimedia stream, which is transmitted to a remote processing entity for additional features, and checking for its presence in the returned stream to ensure connection integrity, allowing swift switching to local processing when the sequence is absent.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cloud-based processing is used to provide extended computational capabilities, then audio processing quality is improved, but connection reliability deteriorates
Solution Approach 1:
The system embeds a key sequence in the transmitted audio signal before sending it to the cloud. This preliminary action enables the receiver to verify cloud processing status by checking for the presence of the key sequence in the returned signal, allowing detection of connection loss or cloud crashes before corrupted audio is played to the user.
2Adaptability or versatility
If cloud processing is implemented for sophisticated audio features, then processing capability is improved, but system complexity increases
Solution Approach 1:
The patent introduces a key sequence as an intermediary element that facilitates communication between the transmitter and cloud processing system. This simple marker enables the receiver to detect cloud processing status without requiring complex verification protocols, thereby reducing system complexity while maintaining enhanced processing capabilities.
3Speed
If connection loss detection is made quicker, then system responsiveness is improved, but detection reliability may worsen
Solution Approach 1:
The system uses feedback by transmitting a key sequence and checking for its presence in the cloud-processed signal. This feedback mechanism provides both speed and reliability: the key sequence is processed quickly through the cloud system, and its presence or absence in the returned signal provides reliable confirmation of connection status, enabling fast and accurate detection of cloud processing failures.
Data Source
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AI summary
The application relates to a method for operating a multimedia system with encoding a key sequence into a multimedia stream in order to generate an amended multimedia stream, the key sequence comprising a predefined sequence of numbers. The amended multimedia stream with the encoded key sequence is transmitted to a remote processing entity for a remote processing of the amended multimedia stream, and a multimedia stream is received from the remote processing entity. It is determined whether the received multimedia stream includes the encoded key sequence, wherein in response to determining that the received multimedia stream does not include the encoded key sequence, the multimedia system uses, for an output of the multimedia system a locally processed multimedia stream processed locally within the multimedia system.