# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/ralph-hartley
# Generated: 2026-08-13T17:06:36.798Z

schema: https://schema.org/Person
url: "https://fame.am/person/ralph-hartley"
name: "Ralph Hartley"
slug: "ralph-hartley"
description: "Ralph Vinton Lyon Hartley was an American electronics researcher. He invented the Hartley oscillator and the Hartley transform, and contributed to the foundations of information theory."
tagline: "American electronics researcher and information theorist (1888–1970)"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/Hartley_ralph-vinton-lyon-001.jpg?width=1200"
gender: "male"
country:
  name: "United States"
  isoCode: "US"
category:
  name: "Scientists"
  slug: "scientists"
profileType:
  name: "Scientist"
  slug: "scientist"
  entityType: "https://www.wikidata.org/entity/Q39631"
birthDate: "1888-11-30"
deathDate: "1970-05-01"
livingStatus: "DECEASED"
scores:
  popularity:           50.6
  momentum:             4.282754010695189
  historical:           17.50039866666667
  currentAttention:     0
  sourceConfidence:     60
  profileCompleteness:  70
  trendDirection:       "RISING"
ranks:
  global:   null
  country:  null
  category: null
sources:
  - url: "https://uk.wikipedia.org/wiki/%D0%A0%D0%B0%D0%BB%D1%8C%D1%84_%D0%93%D0%B0%D1%80%D1%82%D0%BB%D1%96"
    title: "Ральф Гартлі"
    type:  "WIKIPEDIA"
  - url: "https://ar.wikipedia.org/wiki/%D8%B1%D8%A7%D9%84%D9%81_%D9%87%D8%A7%D8%B1%D8%AA%D9%84%D9%8A"
    title: "رالف هارتلي"
    type:  "WIKIPEDIA"
  - url: "https://arz.wikipedia.org/wiki/%D8%B1%D8%A7%D9%84%D9%81_%D9%87%D8%A7%D8%B1%D8%AA%D9%84%D9%89"
    title: "رالف هارتلى"
    type:  "WIKIPEDIA"
  - url: "https://azb.wikipedia.org/wiki/%D8%B1%D8%A7%D9%84%D9%81_%D9%87%D8%A7%D8%B1%D8%AA%D9%84%DB%8C"
    title: "رالف هارتلی"
    type:  "WIKIPEDIA"
  - url: "https://az.wikipedia.org/wiki/Ralf_Hartli"
    title: "Ralf Hartli"
    type:  "WIKIPEDIA"
  - url: "https://de.wikipedia.org/wiki/Ralph_Hartley"
    title: "Ralph Hartley"
    type:  "WIKIPEDIA"
  - url: "https://en.wikipedia.org/wiki/Ralph_Hartley"
    title: "Ralph Hartley"
    type:  "WIKIPEDIA"
  - url: "https://es.wikipedia.org/wiki/Ralph_Hartley"
    title: "Ralph Hartley"
    type:  "WIKIPEDIA"
  - url: "https://fa.wikipedia.org/wiki/%D8%B1%D8%A7%D9%84%D9%81_%D9%87%D8%A7%D8%B1%D8%AA%D9%84%DB%8C"
    title: "رالف هارتلی"
    type:  "WIKIPEDIA"
  - url: "https://fr.wikipedia.org/wiki/Ralph_Hartley"
    title: "Ralph Hartley"
    type:  "WIKIPEDIA"
  - url: "https://it.wikipedia.org/wiki/Ralph_Hartley"
    title: "Ralph Hartley"
    type:  "WIKIPEDIA"
  - url: "https://ja.wikipedia.org/wiki/%E3%83%A9%E3%83%AB%E3%83%95%E3%83%BB%E3%83%8F%E3%83%BC%E3%83%88%E3%83%AC%E3%83%BC"
    title: "ラルフ・ハートレー"
    type:  "WIKIPEDIA"
  - url: "https://mg.wikipedia.org/wiki/Ralph_Hartley"
    title: "Ralph Hartley"
    type:  "WIKIPEDIA"
  - url: "https://nl.wikipedia.org/wiki/Ralph_Hartley"
    title: "Ralph Hartley"
    type:  "WIKIPEDIA"
  - url: "https://pl.wikipedia.org/wiki/Ralph_Hartley"
    title: "Ralph Hartley"
    type:  "WIKIPEDIA"
  - url: "https://pt.wikipedia.org/wiki/Ralph_Hartley"
    title: "Ralph Hartley"
    type:  "WIKIPEDIA"
  - url: "https://ro.wikipedia.org/wiki/Ralph_Hartley"
    title: "Ralph Hartley"
    type:  "WIKIPEDIA"
  - url: "https://ru.wikipedia.org/wiki/%D0%A5%D0%B0%D1%80%D1%82%D0%BB%D0%B8%2C_%D0%A0%D0%B0%D0%BB%D1%8C%D1%84"
    title: "Хартли, Ральф"
    type:  "WIKIPEDIA"
  - url: "https://sk.wikipedia.org/wiki/Ralph_Hartley"
    title: "Ralph Hartley"
    type:  "WIKIPEDIA"
  - url: "https://sr.wikipedia.org/wiki/%D0%A0%D0%B0%D0%BB%D1%84_%D0%A5%D0%B0%D1%80%D1%82%D0%BB%D0%B8"
    title: "Ралф Хартли"
    type:  "WIKIPEDIA"
  - url: "https://sv.wikipedia.org/wiki/Ralph_Hartley"
    title: "Ralph Hartley"
    type:  "WIKIPEDIA"
  - url: "https://www.wikidata.org/wiki/Q529886"
    title: "Wikidata"
    type:  "WIKIDATA"

# bio (long form, separated for readability)
bio: |
  Imported from discovery source: wikidata-dump