How does a TV mobile phone work? It is very simple: using cell phone as the TV receiver. If you have read how the TV works, then you know the TV signal is actually a radio signal. Phone is used to receive radio signals, it is how it works. If it is TV phone, it not only needs to receive frequency bands allocated to mobile radio voice and data signals, but also needs to receive the radio frequency bands allocated to television signals. For example, if you are in America and you want to make a call, you need to tune the phone to be in the band of 2110 to 2170MHz and if you want to accept the TV signal of channel 2, you need to tune it to be in the band of 54 to 60MHz.
Like the home television, it has the device to extract audio and video content from a radio signal and then goes to process them into its programmes on the screen.
The concept itself is not amazing, but if you want to transmit television signals in the mobile framework, you should face some challenges. The first, streaming video requires fast transmission speed. The second is the bandwidth. In addition, TV data takes larger space than voice data, so if you transmit real time programmes to thousands of phones, the network speed will be very slow. In the final, to receive, process and play video content need more power, the phone battery power is not enough generally.
However, the advanced technology began to make television phone to be a practical luxury. And 3G provides broadband internet access for mobile phones and other mobile devices. The multicast technology can allow multiple users to be access to a broadcast stream as it can save bandwidth for them. Meanwhile, some companies also use this as the time slicing energy transmission technology so that you can turn off the receiver during the transmission interval.
If you have the right TV mobile phone, now you can order a lot of television service programmes such as MobiTV, Sprint TV or SmartVideo. But mobile television broadcast standards and transmission methods are still in the early development stage. So it should be improved quickly with the increasing new technologies. As how the television mobile phone works is very simple and easy to understand, so if you want to know more about it such as the achievement of it and the receiving modules, you can follow the related information on the internet.
