In the recent period, the fingerprint technology has become a hot spot in the mobile phone industry. In fact, the fingerprint on the screen is just a kind of concession for fingerprint technology for the full screen. The fingerprint principle of the screen is the same as the fingerprint technology, but the fingerprint module is sacrificed. Efficiency and precision, a way to place a fingerprint recognition module on the screen to achieve a front fingerprint.
After years of development, mobile phone unlocking has been varied, including password unlocking, pattern unlocking, and fingerprint unlocking. In fact, it is generally divided into fixed information unlocking and biological information unlocking. Some people like this kind of people who are used to it, so what is the difference between the various unlocking methods of the mobile phone.
One: fixed information unlocking fixed information unlocking has already appeared in the function machine era. At that time, many mobile phones set the PIN code by default. Every time the mobile phone is turned on, you must enter the PIN code to enter the mobile phone interface. This password form is the earliest mobile phone unlocking. . Later, people used to enter the password to unlock, and password unlocking is also the simplest and most accurate way to unlock, so now all kinds of unlocking methods will reserve a password to unlock, as a backup unlocking form after other unlocking methods fail.
After the birth of the touch-screen mobile phone, the mobile phone unlocking method has been expanded by a leap, and the sliding unlocking and pattern unlocking were born during this period. Most of the pattern unlocking relies on the nine points of the nine squares to draw different patterns for identity verification. Due to the variability of the nine-square grid pattern, there are 389,112 kinds of schemes for unlocking the pattern, which is absolutely safe for ordinary users, so this kind of The unlocking method is still widely used until now.
Slide unlocking is the most widely used unlocking method in the early days of smartphones. At that time, the iPhone 4 in the hot world used sliding unlocking. Due to the iPhone, other system phones at that time were almost the same as sliding, although the interface Different, but essentially the same way to unlock.
Slide unlocking is also the only way to set up no passwords. For many minimalists, sliding unlocking is the most efficient way. For older users who can't remember or don't want to set a password, sliding unlock is also the best lock screen for them.
Second: Bio-information unlocking Bio-information unlocking is a witness to the development of smart phones. The Motorola Atrix 4G ME860, which was launched in April 2011, was the first mass production model to use fingerprints to unlock. Although the fingerprint unlocking scheme was immature at the time, it was slow. The recognition rate is low, the feedback is not obvious, but Motorola's design is the first time to bring the concept of unlocking biological information to the mobile phone field.
In September 2013, Apple launched the iPhone 5S with fingerprint unlocking technology, which officially brought biometric technology to the mobile phone market. This way of unlocking the finger without touching the password and touching the finger instantly attracted people's attention. Won the "Top Ten Most Innovative Equipment of the Year".
Fingerprint unlocking can be said to be the most extensive unlocking method for the most mature applications in biometric information unlocking. However, the biggest drawback of this unlocking method is that it must be extended with the corresponding finger to unlock, wearing gloves or water and sweat on the hand can not be normal. Unlock. At the same time, because of the popularity of metal and glass body, users can easily leave fingerprints on the fuselage. When the mobile phone is lost, the other party can easily crack the fingerprint password through the residual fingerprint on the body, so Apple has launched a more dazzling Cool bio info unlocking method.
In September 2017, Apple released the iPhone X. In addition to the unprecedented "Liu Haiping", a feature called Face ID has aroused people's attention. This function is the face authentication method that Apple introduced to replace Touch ID. The user's face model is recorded by various devices such as an infrared lens and a distance sensor, and the unlocking is performed by the user only by facing the mobile phone with the face. Face recognition not only outperforms fingerprint unlocking in convenience, but also achieves one-millionth of the security of face recognition. Under the escort of many sensors, only your own face can unlock you. Your own mobile device.
In addition to face recognition, LG and Samsung also introduced a more sci-fi unlocking method - iris unlocking, iris unlocking first appeared on the Galaxy S8, this unlocking method relies on the front camera to identify the user's eye iris. And save the biological information on the phone, similar to the principle of face recognition. At the same time, but the iris is more private than the face, and the difference is higher, so the theoretical safety is also higher, but the limitations of the current identification technology, the iris recognition is too harsh on the environment, and the recognition speed is slow, so currently Or the gimmick is larger than the actual one.
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