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Bionic eye

24.09.2020

Scientists from Australia's Monash University are preparing for clinical trials of the world's first device that restores vision in completely blind people.

As part of the project, the Gennaris device was developed. It is a set of miniature wireless electronic implants that are located on the surface of the brain and transmit information to it.

In many clinically blind people, it is not the eyes themselves that are damaged, but the optic nerves. This damage prevents the transmission of signals from the retina to the visual center of the brain. The development of Australian scientists, in fact, imitates this transmission channel between the retina and the centers of the brain responsible for vision.

The system of the device consists of a specially designed headgear with a camera, a wireless transmitter, a video processor with special software, and a set of 9-9 mm plates - electronic implants that will be placed in the brain.

The headgear filmed by the video camera will be sent to a machine vision processor, which does not exceed the size of a smartphone, processing on which will allow extracting all useful information from the picture. The processed data will be transmitted wirelessly inside the implants. This process converts the data into a series of electrical impulses that will stimulate the brain with hair-thin microelectrodes to produce a visual image in the brain similar to that seen by sighted people.

The implants have already been successfully tested on sheep. The work represents one of the world's first long-term studies of a fully implantable cortical vision prosthesis.

In addition, studies have shown that this technology can not only restore vision, but also improve the health of patients with incurable neurological conditions, such as paralysis of the limbs.

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Parade Technologies USB 3.0 Repeaters 15.12.2013

Increasing the density of the layout of mobile devices makes the conditions for the passage of signals far from optimal. Losses and interference violate the integrity of the signal, interfering with the normal operation of high-speed interfaces. This must be taken into account when placing components and designing the layout of printed circuit boards. However, for example, the outputs of USB 3.0 controllers integrated into single-chip systems are not designed to be affected by connectors, cables, and suboptimal component placement.

The solution is to use repeaters that restore the waveform and ensure compliance with the requirements of the specifications.

Parade Technologies has unveiled two models of USB 3.0 repeaters optimized for use in next generation smartphones, tablets and other mobile devices. According to the manufacturer, the PS8731 and PS8733 chips are characterized by the smallest power consumption and size among USB 3.0 repeaters.

PS8731 USB 3.0 Single Channel Omnidirectional Repeater, PS8733 USB 3.0 Single Port Bidirectional Repeater
Model PS8731 is a single port omnidirectional USB 3.0 repeater, PS8733 is a single port bidirectional USB 3.0 repeater.

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