A hybrid of a mobile phone and a TV set has been created. Free Technical Library News

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Created a hybrid mobile phone and TV

22.11.2003

The new mobile telecommunications technology was presented by a European consortium of researchers, which included scientists from Brunel University, the laboratories of Philips, Motorola, France Telecom and the German research organization in the field of multimedia technologies IRT.

During the project called Cismundus, a prototype of the device of the same name was developed, which implemented a hybrid of a mobile phone and a digital TV. Cismundus allows you to receive signals from terrestrial digital television networks, radio broadcasting and carry out mobile communications from the same terminal. Cismundus was first presented at the IBC show in Amsterdam. The new device looks like a tablet PC. It uses a special antenna for receiving digital TV.

An interesting feature of Cismundus is the ability to automatically switch to the reception mode of the same digital TV channel over cellular networks (using GPRS) if the digital TV terrestrial signal is lost. Researchers explain the need for such a device by the fact that mobile communication networks are unlikely to be able to be adapted for the transmission of high-quality television signals in the foreseeable future.

Modern GPRS and UMTS-networks cannot withstand the volume of information transmitted over them while simultaneously connecting a large number of subscribers to them. The development of "cellular TV broadcasting" is too slow and will require significant investment in infrastructure, and the convergence of mobile communications and digital TV broadcasting in a single device will significantly reduce these costs.

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