• Skip to primary navigation
  • Skip to main content
SRI InternationalSRI mobile logo

SRI International

SRI International - American Nonprofit Research Institute

  • About
    • Blog
    • Press room
  • Expertise
    • Advanced imaging systems
    • Artificial intelligence
    • Biomedical R&D services
    • Biomedical sciences
    • Computer vision
    • Cyber & formal methods
    • Education and learning
    • Innovation strategy and policy
    • National security
    • Ocean & space
    • Quantum
    • QED-C
    • Robotics, sensors & devices
    • Speech & natural language
    • Video test & measurement
  • Ventures
  • NSIC
  • Careers
  • Contact
  • 日本支社
Show Search
Hide Search
History of innovation November 16, 2021 Communication, Computing, Firsts, Health, Sensing and Devices, Speech/ audio, The 1960s

Acoustic modem

SRI International November 16, 2021

acoustic-modem
Acoustic modem- 1966

SRI scientists made vast improvements to the acoustically coupled modem, which had been invented elsewhere in the early 1960s. SRI’s improvements included a receiver that could detect bits of data amid the “hiss” heard over long-distance telephone connections.

In 1966, SRI patented two acoustical couplers that gave the deaf a way to communicate. The modems also allowed for the first broad-area computer network connections.

CommunicationComputingFirstsHealthSensing and DevicesSpeech/ audioThe 1960s

Related innovations

Deafnet

Share this

Facebooktwitterlinkedinmail

History of innovation Communication, Computing, Firsts, Health, Sensing and Devices, Speech/ audio, The 1960s

How can we help?

Once you hit send…

We’ll match your inquiry to the person who can best help you.

Expect a response within 48 hours.

Our privacy policy
Career call to action image

Make your own mark.

Search jobs
Our work

Case studies

Publications

Timeline of innovation

Areas of expertise

Blog

Institute

Leadership

Press room

Media inquiries

Compliance

Privacy policy

Careers

Job listings

Contact

SRI Ventures

Our locations

Headquarters

333 Ravenswood Ave
Menlo Park, CA 94025 USA

+1 (650) 859-2000

Subscribe to our newsletter

日本支社

SRI International

  • Privacy Policy
  • Cookies
  • DMCA
  • Copyright © 2022 SRI International