Scheme, pinout (pinout) of the Alcatel One Touch Easy DB cable. Encyclopedia of radio electronics and electrical engineering
Encyclopedia of radio electronics and electrical engineering / Mobile telephony
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Latest news of science and technology, new electronics:
Artificial leather for touch emulation
15.04.2024
In a modern technology world where distance is becoming increasingly commonplace, maintaining connection and a sense of closeness is important. Recent developments in artificial skin by German scientists from Saarland University represent a new era in virtual interactions. German researchers from Saarland University have developed ultra-thin films that can transmit the sensation of touch over a distance. This cutting-edge technology provides new opportunities for virtual communication, especially for those who find themselves far from their loved ones. The ultra-thin films developed by the researchers, just 50 micrometers thick, can be integrated into textiles and worn like a second skin. These films act as sensors that recognize tactile signals from mom or dad, and as actuators that transmit these movements to the baby. Parents' touch to the fabric activates sensors that react to pressure and deform the ultra-thin film. This ... >>
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| Random news from the Archive Quantum communication system based on drones
24.01.2021
A team of Chinese scientists managed to deploy a quantum communication system using drones. Thus, they managed to create an experimental communication system protected by quantum encryption.
In such systems, pairs of entangled photons are usually used, transmitting one of them to the recipient. The laws of quantum mechanics do not allow an outsider to unauthorizedly measure the state of the sent photon, while not giving himself away by changing the corresponding state of the second one. However, the transmission of entangled particles over long distances is still a difficult task - especially by air, with a laser beam.
The priority for the deployment of global communications remains low-orbit satellites in combination with ground-based infrastructure. But in order to deploy a quantum communication system in limited areas, ground stations and drones can be used. This possibility was demonstrated by Chinese scientists.
A compact entangled photon generator was placed on board each drone. One of them was sent to the ground station, and the other - to a nearby drone, which, in turn, generated new entangled particles and transmitted them to the next station. The demonstration system was only able to transmit over a kilometer, but calculations show that by increasing the height of the drones, an area of more than 300 kilometers across can be covered. The authors of the study also note that they have for the first time carried out the transfer of entangled photons between a pair of moving vehicles.
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