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Mar 20 2008 11:45AM | Permalink | Email this | Comments (0) |
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With the explosive growth of vehicle navigation and entertainment electronics, standardized interfaces and data transport protocols are required to permit interoperability between in-car and portable devices. To this end, the Media Oriented Systems Transport (MOST) Cooperation provides a multimedia and infotainment networking standard for the automotive industry. The standard provides an efficient and cost-effective fabric to transmit audio, video, data, and control information between any devices attached. Its synchronous nature allows for simple devices to be able to deliver content and others to render that content with a minimum of hardware. Revision 3.0 of MOST is a complete overhaul of the specification structure offering several new features including 150 Mbps bandwidth, an isochronous transport mechanism to support extensive video applications, and an Ethernet channel for IP-based packet data. The standard handles multiple high-definition video streams, multi-channel surround sound with premium quality of service, and simultaneous packet data. In addition, the latest specification offers an isochronous channel to support streams which are not synchronized to the MOST frame rate. A typical use-case is the transport of MPEG streams over a MOST network, since MPEG streams generally use variable bit-rate. Like most standards upgrades, the latest MOST specification has provisions for backward compatibility with legacy products. Existing applications can be reused in the new network by modifying their network interfaces to the new MOST150 Physical Layer with a bandwidth of 150 Mbps. You can find out more about the new standard and applications at the MOST Cooperation website.

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