TV and Radio

How does an infrared remote control work?
Answered by HowStuffWorks
  • HowStuffWorks


  1. An infrared remote control, or IR remote, uses pulses of light to control electronics. The light pulses represent specific binary codes that are set up to correspond to various commands on electronic devices. Your TV, VCR or other device decodes the binary command from its IR receiver. Once the binary information is decoded, the device's microprocessor can use the information to carry out the command it was told to perform.

    More answers from HowStuffWorks »

Still Curious?
  • Why does a DLP TV give consumers such bang for the buck?

    Answered by HowStuffWorks

  • What was the Grand Alliance?

    Answered by Science Channel

  • What is a composite video signal?

    Answered by HowStuffWorks


What are you curious about?

Image Gallery