Multivision, as its name suggests is a television in which many people can watch different contents, simultaneously, without compromising performance (Its not a television that divides screen into four parts, etc....).
Its principle is absolutely simple-'FRAME RATE'.
Things we are going to need- High Speed Shutter Glasses, a signal receiving machine which can shred the videos and rearrange them, ear-pieces and remotes for every individual and last but most important, a television having fast response time ( say around 5 ms).
Now, we have to manipulate few things-
Now, we have to manipulate few things-
- High Speed Shutter Glasses- We are not going to use them for what they are made, and instead of that we will use their property of blocking our vision for a limited decided time. Both eye-pieces must work simultaneously ( they work independently in 3D TVs- that's not required here). So, we need to program them according to our need.
- Machine- All we need here is a processing unit that-
Manipulations are done and now lets do some maths ( Here we are going to assume that we have only 4 viewers)-
- First converts a video stream at a definite frame rate.
- Then arranges the individual frame of different streams one after another in a sequence.
- It also must send audio of each channel separately to the desiring viewer ( we have different ear-pieces and remotes for each viewer).
- It must receive signals from different viewers and differentiate them from each other so that chances of malfunctioning decreases.
- After amplifying normal frame rate (~30 fps) to 50 fps of each video, then shredding them down to single frame and arranging them one after another as a single unit, net frame rate of new mother stream is 50x4=200 fps.
- Hence if in one second, 200 frames pass in front of our eyes, then each frames take exact 1÷200 seconds = 0.005 seconds or 5 ms. This is the response time of our television.
Now, here's the real trick- the nature of our mother stream is like 123412341234.. i.e. it displays frame of stream one for 5 ms, then of stream two for same time, then of three, four and again one. For viewer number 1, streams 2,3 and 4 are useless and will cause difficulty in viewing experience, here comes our high speed shutter glasses which will block every frame ( i.e. they will remain closed for 5x3=15 ms) expect that of stream 1's frame ( by remain opening for 5 ms). Our viewer can hence experience his video and audio without any interruption.
Few people might question that most of the time our vision will be blocked, but I must remind that our eye can judge difference happening only in about one-tenth of a second. This time period is so small that we won't be able to even judge that what is happening.
This principle is quite simple and I tried to share it with companies like Samsung and LG, but they haven't replied so I decided to keep it open for everyone. If you have any query regarding MULTIVISION, you are always welcome.
Here I have few rough sketches regarding it ( I am not a professional and have been doing this for first time, so please bear with me).
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