KAIST

It is expected that the time taken to download large-size files will be shortened significantly down the road because a wireless chip has been developed capable of transmitting a full HD video file stored on a smart phone in real time.

The Ministry of Education, Science and Technology and the National Research Foundation of Korea announced on March 12 that the Intelligent RF Research Center of the Korea Advanced Institute of Science and Technology (KAIST) developed a new wireless transceiver RF chip whose data transmission speed is 50 times faster than that of Wi-Fi. The chip allows a 5GB DVD file to be downloaded in just 5.4 seconds. The time amounts to three minutes and eight seconds and 208 minutes and 53 seconds for Wi-Fi and Bluetooth, respectively.

In addition, in the medical sector, endoscopic surgeries can be performed without cables with the help of it. Existing technologies for wireless data transmission and reception entail some disconnection and the accuracy is rather limited. However, an endoscope incorporating the RF chip is free from such disconnection.

According to the KAIST, the RF chip can transmit 10.7Gb of data per second at a bandwidth of 60GHz and the antennas for transmission and reception are combined with each other for a smaller size and lower power consumption. A Wi-Fi network’s speed is approximately 200Mb per second.

Furthermore, the researchers succeeded in sending a full HD video file stored on a smart phone directly to an HD TV without compressing it by means of the chip so that the risk of data loss and distortion caused by compression can be prevented from the get go. They reduced the power consumption of the chip substantially by adopting the OOK, or on-off keying, method, too. It is characterized by sending signals only when the data signal is not 0 but 1. The chip also allows high-resolution video files on a portable device to be watched via a beam projector without the need for dedicated cables.

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