What other functions does a phone case have besides protection?

Nowadays, when people buy a phone, they will also get a stylish phone case. Some people even buy various phone cases to dress up their phones for different occasions. After so many years, it is difficult to ascertain whether the Motorola DynaTAC 8000X, invented in 1973. came with a protective case. After all, even during the pager era, people designed all kinds of protective cases for pagers.

​Although phone cases have accompanied phones for decades, their identity and responsibilities have undergone several transformations. Initially, the function of a phone case was very simple: to protect the phone.

From today’s perspective, especially for phones like the Nokia 3310 that can be used to crack walnuts, providing protection seems almost meaningless. However, back in the year 2000 when the median household income was just over $40.000. a phone priced at $160 still carried some weight.

But with the gradual development of society, phone cases have taken on new functions and are no longer solely for phone protection. From the Apple phone cases of the past to the Huawei phone cases of today, it represents a leap for an era.

There have been reports that Huawei is about to launch a phone case that allows 4G phones to use 5G networks. The principle should be similar to Apple’s earlier leather cases or the Moto Z3’s 5G module, or even the Red Magic 3’s 5G armor.

In order for smartphones to achieve mobile communication functions, they rely on baseband or modem chips. These chips are responsible for digital signal processing of wireless communication reception and transmission signals. Modulation involves controlling certain parameters of the carrier wave using baseband pulses to form signals suitable for transmission over the line, while demodulation removes the modulated carrier wave from the received signal, restoring it to the original baseband digital signal.

Now, let’s hope this product can be launched soon.