# International Standard Electric Corp  — Patents explained on PatentBrief

International Standard Electric Corp  has 2 landmark patents explained in plain English on PatentBrief.

- [How the Geiger Counter Detects Invisible Radiation](https://patentbrief.org/patent/us/2485586/geiger-counter) — granted 1949
  A 1947 patent for a radiation detection device that uses a gas-filled tube to identify and count high-energy particles.
- [How Pulse Code Modulation Digitizes Analog Signals](https://patentbrief.org/patent/us/2266401/pcm-pulse-code-modulation-reeves) — granted 1941
  A foundational 1938 patent describing how to convert continuous sound waves into a stream of digital numbers for transmission.

**Full profile:** https://patentbrief.org/company/international-standard-electric-corp

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