2006-11-30 17:31:16 · 4 answers · asked by smarty g 1 in Science & Mathematics ➔ Engineering
The principle of remote control is that there is a wireless transmitter and wireless receiver involved. You can communicate between the transmitter and receiver via different frequency spectrum, such as infrared.
2006-12-01 00:21:29 · answer #1 · answered by Lilliana 5 · 0⤊ 0⤋
There are three types of remote control. Some use the principle of "infra-red" (IR) to communicate with a TV or other device. Some use radio frequency (RF) communication, and some use a wire. For (IR) the remote control needs to be within line-of-sight of the TV, but for RF, it doesn't. For wired remote control operation, you can only go as far away as the wire is long.
2006-12-01 01:57:02 · answer #2 · answered by Mez 6 · 0⤊ 0⤋
In IR remote controllers, IR for ifnra red, different functions are identified by different voltatages at IR frequencies which are sampled at the destinations and converted to numbers and processed as in computing and different functions are thus generated and executed using special purpose computers.
2006-12-02 13:24:06 · answer #3 · answered by Mathew C 5 · 0⤊ 0⤋
so you dont have to get up to change the tv channel or cd player to the next song. it's for convience.
2006-12-01 01:33:00 · answer #4 · answered by collgegrl11 4 · 0⤊ 0⤋