What is Fingerprint scanner or sensor in mobile?

What is Fingerprint scanner or sensor in mobile? 

Fingerprint sensor 

Fingerprint scanner is a type of technology that identifies and authenticates a person's fingerprint to allow or deny access to a mobile phone system or physical facility.

This is a type of biometric protection technology that uses a combination of hardware and software techniques to identify a person's fingerprint scan.

How works Fingerprint scanner.

There are three types of fingerprint scanners. 

1. Optical scanner
2. Capacitive scanner
3. Ultrasonic scanner 

Optical Fingerprint scanner. 

It is the oldest type of technology digital scanner used to capture and compare a person's fingerprints. it is a sensor that uses an optical image capture technique, along with the use of algorithms, to detect unique patterns on the surface of the finger, including crests or unique marks, all through an analysis of the light and dark areas of the picture. 

Capacitive Fingerprint scanner. 

It is the most common type of fingerprint sensors in smartphones, which accurate use a capacitive scanner. Unlike the previous technology, with capacitive fingerprint scanners, instead of creating a 3D image of a fingerprint, tiny capacitor circuits are used to collect fingerprint data. Because capacitors can store an electrical charge, by connecting them to the conductive plates on the sensor surface, a traceable trace can be tracked digital.

Ultrasonic fingerprint scanner. 

It can be this is the latest technology used in fingerprint sensors, in which to really capture the details of a fingerprint the hardware consists of a receiver and an ultrasonic transmitter. What does it do, an ultrasonic pulse It is transmitted on the finger that is placed on the sensor. Some of this pulse is absorbed and part of it is recovered by the sensor depending on the crests, pores and other details that are unique in each fingerprint.

In-Display Fingerprint (vivo nex) 

Vivo has launch a concept model that includes Qualcomm’s ultrasonic in-display fingerprint scanner.

Model name - Vivo NEX (click here for more information)

Advantage of fingerprint sensor or scanner. 

• Your Device more secure due to Fingerprint Scanner. 
• Scan your finger and make payment online.
• You can also click the photo by touching the fingerprint scanner. 

What is Gyroscope sensor in mobile?

What is Gyroscope sensor in mobile? 

Gyroscope sensor 

Accelerometer is able to detect that your mobile is moving in a certain direction and with how much intensity, but is far from doing it with the precision needed today in applications such as virtual reality. That's where the gyroscope comes in, which adds the record of the rotation of the device in all its axes.

The gyroscope sensor is a much more accurate record of the position and movement of the device. Joining your data with the accelerometer and other sensors provides very accurate information of where the phone is and if it is moving or rotating in any where. 

How works gyroscope sensor in mobile? 

Gyroscope sensor works like accelerometer sensor. But gyroscope sensor is able to give you accurate information. 

That senses or measures the forces of acceleration that may be caused due to gravity of movement or tilting action. if it is employed in mobile, it will do accordingly. It also senses the angle at which it is being held via mobile phone. 

For more information on accelerometer sensor Click here.

Use of Gyroscope sensor. 

• By gyroscope sensor well play racing  games in mobile. 
• With this sensor you can also click  360° degree photos. 

What is Proximity sensor

What is Proximity sensor? 

Proximity sensor 

The smartphone has a function that turns off the screen during a call if you notice something near the proximity sensor. The proximity sensor turns off the screen when you put the phone over the ear so that it does not activate the touch screen. This sensor is to the left or right of the headset depending on the device model.

Usually the proximity sensor is found in every touchscreen phones. 

See in the image above.

How do proximity sensor work?

The proximity sensor has two LED light one that emits an infrared ray, invisible to the human eyes and another that detects it back when it bounces on a surface. simply when the emitter detects that the light beam has bounced and returns very fast, that means that the object is very close. If the light beam takes longer to return, it is far away and therefore, the proximity sensor will not activate functions such as turning off the screen. 

Benefits of proximity sensor. 

Due to proximity sensor, battery is saved when calling. Because the screen light is turned off, then battery life extend. 

What is magnetometer sensor in mobile?

What is digital compass (magnetometer sensor) in mobile? 

Digital compass 

Digital compass (magnetometer sensor)  that's usually based on a sensor called the magnetometer and provides smart phones with a simple orientation in relation to the Earth's magnetic field. From the digital compass to find out what is the direction of East, West, South and North. Your phone always knows which way is North, so it can automatically provide directions your digital maps depending on your physical orientation.

How it's works magnetometer sensor (digital compass) in mobile. 

The compass of our smartphone is quite similar, counting with three axes (X, Y and Z) that are sensitive to the Earth's magnetic fields, and move accordingly to these magnetic fields, being able to signal our orientation with respect to the Earth's magnetic field.

Magnetometer sensor 

They can make the magnetometer respond to metals such as nickel, iron and steel, and it could be useful to determine if there are wires behind a wall or even to find lost objects behind the bed. which is why you can get metal detector apps for your smartphone.

What is Accelerometer sensor?

What is Accelerometer sensor? 

Accelerometer sensor 

Accelerometers sensor in mobile phones are used to detect the orientation of the phone. 

A good accelerometer perfectly senses the change in orientation by 3D (X, Y, Z, axis) measurement of the acceleration in a smartphone. 

The accelerometer sensor is used to ensure video/image are presented in the correct way, portrait or landscape, depending on the way the phone is held.

You have seen auto rotate mode in every mobile phones. This auto rotate mode works by accelerometers sensor. 

How it's work Accelerometer sensor in mobile. 

Actually smart phone with accelerometer is nothing but a circuit based on MEMS (Micro Electro Mechanical System) - that senses or measures the forces of acceleration that may be caused due to gravity of movement or tilting action. if it is employed in mobile, it will do accordingly. It also senses the angle at which it is being held via mobile phone. 

Benefits of Accelerometer sensor. 

• It makes web-browsing and photo viewing better by changing the orientation.
• It interacts or controls the car racing games changing the direction or steer of the racing vehicle.
• It helps the user to mute the phone in case of incoming call by turning the device facing downward.
• shaking your mobile will change your music.

Ambient light sensor

What is Ambient light sensor? 

Ambient light sensor 

The Ambient light sensing is mounted in mobile phones to automatically measure the amount of light in the external environment and adjust screen brightness according. 

In dim environments, the screen dims. 

In bright environments, the screen brightens. 

An ambient light sensor extends a phone’s battery life and comfortable.

Ambient light sensor adjusts the brightness, of your mobile phone display according to the external environment. 

How it's work Ambient light sensor? 

ambient light sensor works like humans eyes. to identify the ambient light and control the light source of display accordingly.

for example If you are in the light then, the brightness of your smartphone will increase. and if you are standing in the dark then your smartphone display brightness will decrease.

Benefit of Ambient light sensor 

• Easy to integrate with lighting system such as automatic lighting system in smartphone.
• Save bettery life 

USB type-C

What is USB type-C? 

USB type-C

USB Type-C, usually referred to as just USB-C, is a relatively new type of connector for delivering data and power to and from computing devices. Because the USB-C plug is symmetrical, it can be inserted either way, eliminating the frustrations of earlier USB ports and putting it on a par with Apple’s reversible Lightning plug. This alone makes it a hit for me, but USB-C is also closely linked to several powerful new technologies, including USB 3.1, Thunderbolt 3, and USB Power Delivery.

USB-C, also known as USB Type-C, is a 24-pin USB connector system, which is distinguished by its two-fold rotationally-symmetrical connector.

The USB Type-C Specification 1.0 was published by the USB Implementers Forum  (USB-IF) and was finalized in August 2014.

All in one port

In addition to power and data, USB Type-C is designed to support a wide variety of different modes and standards too, positioning it as a one-size-fits-all solution for a selection of technologies. A number of audio and video modes are supported, setting up the connector to become a replacement for the 3.5mm headphone jack and the HDMI cable.

For audio, the connector supports digital audio via the USB Audio Class specification, of which version 3.0 is the latest. Analog headsets are also supported over the connector through the Audio Adapter Accessory Mode, which repurposes the port’s SBU and CC pins for left, right, and microphone connections. With a pass-through connector, devices can also be charged up with 5V/500mA worth of power.

Data speed & power speed 

USB 3.1 Type-C cables offer a transfer rate of 10Gbps, which is double the transfer speed of USB 3.0 (5 Gbps). Additionally, these cables will offer 20 volts and 5 amps of power, compared with the 5 volts and 1.8 amps of its predecessor. This means less waiting around for devices to transfer data or for their batteries to charge.