Industry Chain Overview
Besides the main mobile phone components introduced in the Mobile Structure Introduction, there are more than six hundreds other elements in a cell phone. Here, we introduce some of them as below.
OIS(Optical image stabilization )
A technology for camera that physically moves the camera lens to compensate for camera movement. Anytime a camera takes a photo, the image is captured over a period of time. That period of time is extremely short when working with ample light. But in low light, the period of time is usually longer, often long enough that even the smallest hand movement can blur the photo. So while OIS can be used for all photos, its most useful in low light. OIS uses a tiny gyroscope to detect those small hand movements and direct small actuators (motors) to move the lens in real time, in the opposite direction, to compensate. This keeps the image steady for the camera sensor even though the camera has moved.
The "core" software that controls the basic operation of an electronic device. Examples include Mac OS for computer, and android or IOS for phones. More advanced OS platforms for phones, such as IOS, windows phone, and android, allow full software applications to run on tops of the OS, such as games, organizer applications, and communication applications. Standardized OS platform also provide a mostly consistent user interface (UI) across devices from different hardware manufacturers.
IMEI (International Mobile Equipment Identifier)
A 15-digit number (composed of four parts) that uniquely identifies an individual wireless device. The IMEI is automatically transmitted by the phone when the network asks for it. A network operator might request the IMEI to determine if a device is in disrepair, stolen or to gather statistics on fraud or faults.
Nano-SIM (4FF SIM)
4FF stands for 4the form factor. A SIM card that is simply physically smaller than a traditional (2FF) SIM card or Micro-SIM (3FF) card. The electric contacts and circuitry of a Nano-SIM are identical to that of a larger SIM card; the plastic part is simply smaller. A Nano-SIM can be used in a larger SIM card slot with an adapter.
An electronic component that measures tilt and motion. A device with an accelerometer knows what angle it is being held at. One common use in phones it to detect whether the phone is upright or sideways, and automatically rotate the graphics on the screen accordingly. Another common use is controlling games and other applications by moving or shaking the phone.
Infrared is a line-of-sight wireless technology that uses a beam of invisible light to transmit information. This means that the infrared ports of both devices must be nearby and aimed at each other for a connection to succeed.