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Limp-Home Operation of Audio Video Bridging Networks

A video and audio technology, applied in the field of vehicle intranet, can solve the problem of insufficient data requirements of traditional proprietary communication links

Active Publication Date: 2016-01-27
HARMAN INT IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As the amount of data to be communicated increases, traditional proprietary communication links may become inadequate to meet data requirements

Method used

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  • Limp-Home Operation of Audio Video Bridging Networks
  • Limp-Home Operation of Audio Video Bridging Networks
  • Limp-Home Operation of Audio Video Bridging Networks

Examples

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Embodiment Construction

[0011] As required, detailed embodiments of the invention are disclosed herein; however, it is to be understood that the disclosed embodiments are merely exemplary of the invention that can be embodied in various and alternative forms. The figures are not necessarily to scale; some features may be exaggerated or minimized to show details of particular components. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present invention.

[0012] Embodiments of the present disclosure generally provide multiple circuits or other electrical devices. All references to circuits and other electrical devices and the functionality provided by each device are not intended to be limited to encompassing only what is shown and described herein. Although specific labels may be assigned to the various circuits or other electrical devices dis...

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Abstract

Electronic modules in a vehicle may communicate over an Audio / Video Bridging (AVB) network. The modules normally cooperate to send and receive streams of data with a specified quality of service as AVB streams. When conditions are present in which an AVB-quality stream cannot be sent over the network, the modules can communicate with certain limp-home functionality. Sending modules may send streams of data without a stream reservation as multicast messages. Receiving modules may be configured to receive the multicast messages. Network bridge modules may be configured to enable a Talker Pruning feature to facilitate handling of the multicast messages.

Description

technical field [0001] This application generally relates to vehicle intranets. Background technique [0002] The increasing number of electronic modules in motor vehicles has increased the need to move data efficiently between the modules. Data transferred by one module can be used in several modules. This need for mobile data may require vehicle and component manufacturers to adapt networks within the vehicle to support these connections. Network traffic can include audio and video data for infotainment systems. Network traffic can also include more security-oriented audio / video data, such as communications between backup cameras and displays. The defined protocols generally identify the operation of the network under normal conditions. Behavior during fault conditions may not be well specified. [0003] As the amount of data to be communicated increases, traditional proprietary communication links may become insufficient to meet the data requirements. It may be desi...

Claims

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Application Information

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IPC IPC(8): H04L29/08H04L12/46H04L69/40
CPCH04L12/462H04L67/12H04L65/1069H04L65/80H04N21/647
Inventor C.冈瑟
Owner HARMAN INT IND INC
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