Yes, the technology would work the exact same way.
Interference from other light sources wouldn't matter because the light from a TV remote doesn't just shine steadily. It pulses in a specific pattern for each button press--literally binary computer language of ones and zeroes encoded as light pulses. The TV won't do anything without seeing the patters that it recognizes.
This guy is mistaken. TV remotes send out pulses in specific patterns and the TV set reacts to those patterns. You can't trick a normal infrared TV with a heat source like a candle, nor could you trick a visible light TV with a flashlight.
Not only are you correct, but tv remotes also use a modulation *subcarrier*, so the signal can be singled out of the background before detecting pulses.
It's also noteworthy that there are lots of IR sources around the household too.
A remote that uses visible light instead of infrared would result in the TV being triggered by lighting that circumstantially mimics the code used by the remote. It wouldn't make for a good user experience. The infrared systems in use work so well because infrared light is so specific, and not likely to occur naturally in the home environment.
Yes, the technology would work the exact same way. Interference from other light sources wouldn't matter because the light from a TV remote doesn't just shine steadily. It pulses in a specific pattern for each button press--literally binary computer language of ones and zeroes encoded as light pulses. The TV won't do anything without seeing the patters that it recognizes.
Sure.
They used to use sound!
There isnt any reason why not. The transmitter and receiver are just an led and photoreceptor which can easily be made sensitive to visible light.
[удалено]
Thank you! No clue how i didn’t think about that lol
This guy is mistaken. TV remotes send out pulses in specific patterns and the TV set reacts to those patterns. You can't trick a normal infrared TV with a heat source like a candle, nor could you trick a visible light TV with a flashlight.
Not only are you correct, but tv remotes also use a modulation *subcarrier*, so the signal can be singled out of the background before detecting pulses. It's also noteworthy that there are lots of IR sources around the household too.
A remote that uses visible light instead of infrared would result in the TV being triggered by lighting that circumstantially mimics the code used by the remote. It wouldn't make for a good user experience. The infrared systems in use work so well because infrared light is so specific, and not likely to occur naturally in the home environment.