News Release from: Fujitsu Microelectronics Europe
Edited by the Electronicstalk Editorial Team on 7 February 2001
Fujitsu and XSYS to put MPEG-2 video on the road
Fujitsu Microelectronics Europe is working closely with XSYS Interactive Research to implement its MPEG-2 encoder in a sophisticated in-car digital video and data distribution system.
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Fujitsu Microelectronics Europe is working closely with XSYS Interactive Research of Villingen, Germany, on the implementation of Fujitsu's MPEG-2 encoder in a sophisticated in-car digital video and data distribution system. Unlike previous-generation analogue systems which were based on copper coaxial cabling, the highly advanced video and data processing developed by XSYS for this application allows the transmission via a digital bus based on plastic optical fibre. The Fujitsu MB86390 MPEG-2 encoder is one of the industry's first single-chip solutions for MPEG-2 encoding, including all three key functional elements; video, audio and system multiplexing, in a single IC.
An embedded Fujitsu SPARClite CPU controls the complete encoding and multiplexing process.
Implementation within a single-chip enables costs to be minimised, allowing the device to meet the particularly cost-sensitive demands of in-car systems.
The MPEG-2 encoder has been proven by XSYS to have exceptionally stable performance in the demanding environmental conditions prevalent within the car, being especially robust against analogue 'noise' to which MPEG image compression techniques are normally susceptible.
The reason for that is the using of smart and sophisticated coding algorithms.
A typical in-car video distribution system, using the MB86390, would consist of TV tuner, MPEG-2 encoder and LCD displays with built-in MPEG decoders.
In order to achieve the typical 320 x 240 resolution of LCD displays in such a system with a progressive frame format, it has been shown that a bit-rate of approximately 5Mbit/s is sufficient, even with noisy TV signals.
In less noisy applications, such as those with in-car cameras as the signal source, the bit rate can be reduced to about 1.5Mbit/s.
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