Newbie must see: music as the box how to uninstall software?

More and more TV boxes have appeared in people's living rooms. Users have also found that small boxes can be so convenient and smart. Many types of software are available, but because there are many types of software, some applications are not very practical. Strong, then the problem came, taking music box as an example, music as the box how to uninstall software?


LeTV Store


LeTV Store, which comes with LeTV Box, can manage, download, and uninstall software. Letv Store is a smart TV application market software developed by LeTV. It can be uninstalled without additional download.


Open the LeTV box, and you can see LeTV Store on the top right of the homepage. Enter the confirmation button.



After entering LeTV Store, click on "Management" at the bottom right, and click to enter.



Click Application Management and press Enter to enter.





After entering, you can see all the downloaded software. Click the center confirmation button to open, uninstall, and apply details. Click Uninstall.




LeTV Store is LeTV's own box application, the advantage is no additional download, the disadvantage is that each software requires a separate operation, a waste of time and cumbersome.

Bandpass Filters

A band-pass filter or bandpass filter (BPF) is a device that passes frequencies within a certain range and rejects (attenuates) frequencies outside that range.
Bandpass filters are widely used in wireless transmitters and receivers. The main function of such a filter in a transmitter is to limit the bandwidth of the output signal to the band allocated for the transmission. This prevents the transmitter from interfering with other stations. In a receiver, a bandpass filter allows signals within a selected range of frequencies to be heard or decoded, while preventing signals at unwanted frequencies from getting through. Signals at frequencies outside the band which the receiver is tuned at, can either saturate or damage the receiver. Additionally they can create unwanted mixing products that fall in band and interfere with the signal of interest. Wideband receivers are particularly susceptible to such interference.[3] A bandpass filter also optimizes the signal-to-noise ratio and sensitivity of a receiver.

In both transmitting and receiving applications, well-designed bandpass filters, having the optimum bandwidth for the mode and speed of communication being used, maximize the number of signal transmitters that can exist in a system, while minimizing the interference or competition among signals.

Outside of electronics and signal processing, one example of the use of band-pass filters is in the atmospheric sciences. It is common to band-pass filter recent meteorological data with a period range of, for example, 3 to 10 days, so that only cyclones remain as fluctuations in the data fields.

Bandpass Filters,Optical Filters,Bandpass Optical Filter,Optical Bandpass Filter

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