Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Digital Radio Mondiale (DRM) For Car Radios

10.01.2005


Fraunhofer IIS presented the first DRM chip design for car radios. This car radio solution will enable drivers to select their preferred radio program from hundreds of different radio stations. However, it is something more than purely listening to favorite music: the new radio formats offer multilingual support to ethnic news or talk programs. In this way, drivers will get local news or may listen to programs in foreign languages – at any time and any place.



With the international CES exhibition in Las Vegas on January 6 - 9, 2005, the vision of Digital Radio Mondiale DRM car radios got one step closer to reality. Based on Philips‘ ”SAF7730” digital car radio platform, Fraunhofer Institute for Integrated Circuits IIS presented the first DRM implementation that seamlessly fits into today’s car radios. For the OEM, upgrading to the international DRM standard is just a matter of inserting a ”DRM module” into an existing connector slot. Initially, the ”DRM module” upgrade allows to differentiate products with minimum investment, risk and time to market. In the next stage, the evolving road maps with fully integrated ”DRM car radio chip sets” will lower the system cost further, completely inline with the requirements of the mass market.

The DRM standard applies the latest advanced audio coding algorithms for music and speech transmission – to provide FMlike sound quality at very limited bandwidth. DRM programs are digitally transmitted and highly compressed. Therefore, they may be stored on-the-fly in the car radio’s memory, to build up a personal music collection. In addition, DRM programs carry other types of multimedia content and information, including headline news or traffic and tourist information. This data is transmitted in the background and will be immediately available after one gets into the vehicle.


The technical solution presented for DRM car radios uses Philips’ ”SAF7730“ digital car radio platform. It is equipped with an integrated Philips tuner „TEF6730“ capable of digital AM and FM decoding and sound processing. The DRM decoder, based on the algorithms of the well known “Fraunhofer DRM Software Radio“, is integrated in hardware on a FPGA prototype. The decoding of data services runs on an ARM9 processor on the same prototype board. This processor is also used for audio and speech decoding, employing the decoder libraries from Coding Technologies.

Broadcasters will benefit from this Digital Radio Mondiale DRM solution for car radios: DRM provides broadcasters with additional spectrum in the AM bands. The fact that it is easy and cost-efficient to bring DRM programs on air enables established stations to broaden their coverage area. Moreover, it opens opportunities to newcomers and innovative content providers to bring in more program diversity to reach their specific audiences.

Michael Schlicht | alfa
Further information:
http://www.iis.fraunhofer.de

More articles from Automotive Engineering:

nachricht 3D scans for the automotive industry
16.01.2017 | Julius-Maximilians-Universität Würzburg

nachricht Improvement of the operating range and increasing of the reliability of integrated circuits
09.11.2016 | Technologie Lizenz-Büro (TLB) der Baden-Württembergischen Hochschulen GmbH

All articles from Automotive Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Breakthrough with a chain of gold atoms

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

Im Focus: DNA repair: a new letter in the cell alphabet

Results reveal how discoveries may be hidden in scientific “blind spots”

Cells need to repair damaged DNA in our genes to prevent the development of cancer and other diseases. Our cells therefore activate and send “repair-proteins”...

Im Focus: Dresdner scientists print tomorrow’s world

The Fraunhofer IWS Dresden and Technische Universität Dresden inaugurated their jointly operated Center for Additive Manufacturing Dresden (AMCD) with a festive ceremony on February 7, 2017. Scientists from various disciplines perform research on materials, additive manufacturing processes and innovative technologies, which build up components in a layer by layer process. This technology opens up new horizons for component design and combinations of functions. For example during fabrication, electrical conductors and sensors are already able to be additively manufactured into components. They provide information about stress conditions of a product during operation.

The 3D-printing technology, or additive manufacturing as it is often called, has long made the step out of scientific research laboratories into industrial...

Im Focus: Mimicking nature's cellular architectures via 3-D printing

Research offers new level of control over the structure of 3-D printed materials

Nature does amazing things with limited design materials. Grass, for example, can support its own weight, resist strong wind loads, and recover after being...

Im Focus: Three Magnetic States for Each Hole

Nanometer-scale magnetic perforated grids could create new possibilities for computing. Together with international colleagues, scientists from the Helmholtz Zentrum Dresden-Rossendorf (HZDR) have shown how a cobalt grid can be reliably programmed at room temperature. In addition they discovered that for every hole ("antidot") three magnetic states can be configured. The results have been published in the journal "Scientific Reports".

Physicist Dr. Rantej Bali from the HZDR, together with scientists from Singapore and Australia, designed a special grid structure in a thin layer of cobalt in...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Booth and panel discussion – The Lindau Nobel Laureate Meetings at the AAAS 2017 Annual Meeting

13.02.2017 | Event News

Complex Loading versus Hidden Reserves

10.02.2017 | Event News

International Conference on Crystal Growth in Freiburg

09.02.2017 | Event News

 
Latest News

Stingless bees have their nests protected by soldiers

24.02.2017 | Life Sciences

New risk factors for anxiety disorders

24.02.2017 | Life Sciences

MWC 2017: 5G Capital Berlin

24.02.2017 | Trade Fair News

VideoLinks
B2B-VideoLinks
More VideoLinks >>>