# Philips Broadcast Equipment Corp — Patents explained on PatentBrief

Philips Broadcast Equipment Corp has 1 landmark patent explained in plain English on PatentBrief.

- [How Early Television Systems Isolated Specific Colors for Special Effects](https://patentbrief.org/patent/us/3678182/chroma-key-green-screen) — granted 1972
  A 1971 circuit design that allowed television equipment to detect a specific color in a video signal, enabling the green-screen effects we see in modern weather forecasts and movies.

**Full profile:** https://patentbrief.org/company/philips-broadcast-equipment-corp

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_Source: PatentBrief — https://patentbrief.org. Plain-English explanations of US patents._