Monday, September 10, 2012

application processor extends the cell phone

Display and provide various functions to the user through the keyboard, LCD, audio and other peripherals to meet the user terminal manipulation. 6 top-level module) application layer terminal software, implementation, and to provide end a variety of applications, including business applications. (3) mobile terminal hardware architecture: the mobile terminal hardware including template of RF transceiver, baseband processor, application processor, power management control module, external hardware and interfaces. (Note: different phone hardware platform for the functional division will differ, for example, the baseband unit module may also be completed part of the multimedia application processing) 1) RF unit module RF unit template refers to mobile phone RF receiver and RF transmitter, RF unit module function of the RF chip, the main circuit including: an antenna, receiver filtering, high frequency amplification, the receiver local oscillator, mixer, IF, launching the local oscillator, power amplifier.cell phone jammer can be used in many countries.  2) baseband unit module baseband unit template to send and receive audio and other data processing. 3) application processor for the pursuit of higher levels of integration, the original function coprocessor completed, such as graphics acceleration, video acceleration, 3D acceleration, the Java acceleration support through the application processor, application processor extends the cell phone. phone gradually to support multimedia applications such as video, data, entertainment, business, and pay. The application processor is generally above core ARM9 capacity. 4) The power management control module power management control module is responsible for controlling the processor and device power state, as well as to support the application and device driver interfaces, to meet the demand for power control. In mobile phones, power management control module is an important and complex modules, which requires collaboration with other software and hardware modules. 5) peripheral hardware peripheral hardware, including keyboard, display, and video cameras. 6) Interface USB, headphone, charger, Bluetooth, infrared, WLAN, cable, close the wireless interface.cell phone jammer works well in any nation all over the world.  4 Mobile Terminal Software Architecture: the mobile terminal software includes the driver software, operating system, protocol stack (including the communication protocol stack), application APIs, applications, user interface (UI). 1) physical layer driver software provides control of the mobile phone hardware such as keyboards, audio and display interfaces. The application layer software, keyboard, audio, display device control interface. 2) protocol software module protocol software modules including GSM, GPRS and WCDMA protocol software, L1 (physical layer) protocol software and L2 (data link layer) / L3 (network layer) protocol software.

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