decoder

/diːˈkəʊdə(r)/ (bre, ipa) · /diːˈkəʊdər/ (ame, ipa) · /(ˌ)dē-ˈkō-dər/ (ame, mw)

decoder — noun

  • decodersingular
  • decodersplural

1. an electronic box or device that turns broadcast signals into pictures and sound

1.名詞B1
釋義

an electronic box or device that turns broadcast signals into pictures and sound so you can watch television programmes

例句

Mei plugged the new decoder into the back of her television set.

collocation: plug in a decoder

Without a decoder, Yasmin's old TV could not pick up any digital channels.

同義詞
  • set-top box

    informal term for the same device, more common in everyday speech

  • receiver

    broader term; can refer to radio, Wi-Fi, or other signal-receiving equipment

  • tuner

    specifically the channel-selecting component; a decoder usually contains a tuner

用法筆記

In everyday speech, this device is often called a set-top box. It is distinct from the television set itself — the decoder processes incoming signals; the TV only displays the resulting picture and sound.

常見錯誤

❌I bought a new decoder to watch movies on a bigger screen.
✅I bought a new television to watch movies on a bigger screen.
💡A decoder receives and converts signals; it does not have a screen of its own.