{
  "patent_number": "US 2708722",
  "country": "US",
  "title": "How Wang An Invented the Magnetic Pulse Memory Core",
  "original_title": "Pulse transfer controlling device",
  "summary": "A 1949 invention by An Wang that used magnetic cores to store and transfer binary data, forming the backbone of early computer memory.",
  "what_it_does": "This device uses magnetic cores to control the transfer of electrical pulses. It functions as a memory element by shifting information from one magnetic state to another. By applying specific current pulses, the device can store a bit of data as a magnetic orientation and then transfer that state to the next element in a sequence. This mechanism allowed early computers to store and move data without relying on fragile vacuum tubes.",
  "what_it_does_not_cover": [
    "Does not cover semiconductor-based RAM or flash memory storage.",
    "Does not cover optical data storage or laser-based reading methods.",
    "Does not cover software-based data processing algorithms."
  ],
  "filed": "1949-10-21",
  "granted": "1955-05-17",
  "expires": "1972-05-17",
  "status": "expired",
  "holder": "Individual",
  "holder_url": "https://patentbrief.org/company/individual",
  "inventors": [
    {
      "name": "Wang An",
      "url": "https://patentbrief.org/inventor/wang-an"
    }
  ],
  "times_cited": 74,
  "tags": [
    "semiconductors",
    "mechanical",
    "telecommunications"
  ],
  "abstract": null,
  "url": "https://patentbrief.org/patent/us/2708722/magnetic-core-memory-wang",
  "markdown_url": "https://patentbrief.org/patent/us/2708722/magnetic-core-memory-wang/md",
  "google_patents_url": "https://patents.google.com/patent/US2708722",
  "relatedPatents": [
    {
      "patentNumber": "2799449",
      "countryCode": "US",
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      "url": "https://patentbrief.org/patent/us/2799449/turing-computer-data-storage"
    },
    {
      "patentNumber": "3503060",
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  ]
}