Whether you’re just starting to get into the mobile technology world or you have been in it for years, there are a few things that you can expect from a mobile phone these days.
Having a fingerprint scanner on your smartphone may seem like spy level tech, but it’s actually very useful for granting access to your device. In addition to identity security, fingerprint scanners can be used as one of the factors in Multi-Factor Authentication (MFA).
There are two types of fingerprint scanners: capacitive and optical. These scanners are used in most smartphones these days.
Capacitive scanners work by measuring the electrical charge of your finger on a touch-capacitive surface. They then use the data to map out your fingerprint. These scanners are the most secure, but they are slower than the 3D scanners.
On the other hand, optical scanners work by shining bright light onto your finger. This image is then processed into a digital photograph by a computer.
These scanners are not easy to fool. However, they are not as secure as the Ultrasonic scanners. These scanners are 0.2mm thick and can be placed just about anywhere.
Some fingerprint scanners can also be used as gesture sensors. Newer models can also be used to access your phone without touching it at all. This functionality has become very popular in the last few years.
During Global Tech Korea 2021, Samsung unveiled a stretchable display prototype. This device was created using micro LEDs that have a sub-40mm pixel pitch and are built into a silicon substrate. These small components have a consistency similar to a rubber band.
The Samsung display is able to stretch horizontally and vertically to provide an immersive experience. It can also give a 3D illusion by stretching and twisting. The display can also be folded up into a compact form that can be easily stuffed into a pocket. The display also has RGB colour capabilities.
The stretchable display technology could benefit the AI industry, automotive industry, and health wearables. The display could also be used as a three-dimensional button for robots. The technology is still in prototype stages, but Samsung hopes it will make its way into smartphones with other form factors in the future.
LG Display is also working on stretchable displays. It hopes to improve its display technology by 2024. This year, the company unveiled a prototype that can stretch from 12 to 14 inches. It was built using micro LEDs with a sub-40mm pixel pitch and was able to stretch 20 percent without damage. It also features full colour RGB and a 100ppi pixel density.
AlterEgo lets users converse with machines with only their thoughts
MIT Media Lab researchers have developed an AI system called AlterEgo, which lets users communicate with machines without speech. The device works by detecting neuromuscular signals in the user’s jaw and face. These signals are then fed into a machine-learning system to allow the user to receive and respond to questions, read back a list, or even perform basic tasks.
Unlike other brain-computer interfaces, AlterEgo is a completely silent computer interface that requires no earbuds or speech. Instead, the device uses bone-conduction headphones to transmit vibrations through the facial bones into the user’s inner ear.
The AlterEgo device is similar to a muted cell phone that sends tactile Morse code to the user’s jaw. The system uses four electrodes to pick up the neuromuscular signals in the user’s face and jaw. The device can detect and translate these signals into words, which the user can then recognize.
The device uses a combination of facial sensors and bone-conduction headphones to interpret silent queries. Its accuracy is about 92%. The system is still in development, but researchers hope to improve it by adding more data. The AlterEgo is currently being tested on people who have communication limitations, such as Alzheimer’s or ALS.