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- Learn more:✕This summary was generated using AI based on multiple online sources. To view the original source information, use the "Learn more" links.In 1964 Weitbrecht developed the acoustic coupler, a type of modem that could accurately transmit and receive teletype messages via telephone lines, thus finally making the nationwide telephone network accessible to deaf users.www.wisconsinhistory.org/Records/Article/CS2723Deaf physicist Robert H. Weitbrecht invented an acoustic coupler that was inserted between the teletypewriter (TTY) and a telephone handset. This acoustic coupler was an inspiration for further designs, and in 1966, SRI patented two acoustical couplers that gave the deaf a new way to communicate over the telephone.www.sri.com/press/story/75-years-of-innovation-ac…
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How TTYs made telephones accessible to the Deaf
WEBIn 1964, Robert Weitbrecht, a deaf electronic scientist, developed an acoustic coupler that converted sounds into text. Signals received by a standard telephone handset placed on a coupler were translated into a …
NAD - TTY and TTY Relay Services - National Association of the …
WEBWith the invention of the acoustic coupler (which holds the telephone handset receiver) and the distribution of recycled teletype machines, deaf and hard of hearing people were …
Telecommunications device for the deaf - Wikipedia
The TDD concept was developed by James C. Marsters (1924–2009), a dentist and private airplane pilot who became deaf as an infant because of scarlet fever, and Robert Weitbrecht, a deaf physicist. In 1964, Marsters, Weitbrecht and Andrew Saks, an electrical engineer and grandson of the founder of the Saks Fifth Avenue department store chain, founded APCOM (Applied Communications Corp.), located in the San Francisco Bay area, to develop the acoustic coupler
Wikipedia · Text under CC-BY-SA license- Estimated Reading Time: 9 mins
National Deaf Life Museum | Telephones and TTYs · History …
WEBIn 1964, Robert Weitbrecht, a deaf electronic scientist, developed an acoustic coupler that converted sounds into text. Signals received by a standard telephone handset placed on …
How Hearing Impaired Telephones Work
WEBJun 13, 2008 · TTY owes its existence to a deaf scientist named Robert Weitbrecht. He developed an acoustic coupler in 1964 that allowed a TTY unit to be connected to a telephone. Early TTY units were large and …
TDI - Telecommunications for the Deaf Information
WEBProvided start-up funds for APCOM to manufacture acoustic coupler modems. Advocated successfully to have IRS allow cost of TTYs and modems be tax-deductible as medical expense. Determined to build a …
Development of the TTY – Part IV: The Final Chapter
WEBFeb 1, 2016 · Weitbrect sent Taylor a coupler which he tuned to old Western Union Teletype machines and became intimately involved in the TTY movement. He then distributed these early, extremely non-portable …
Telecommunications for the Deaf - American Sign Language
WEBOct 29, 2004 · The first TTY's for telephone communications were put to practical use for the deaf in 1964 when, "Robert H. Wietbrecht developed the acoustic coupler" for …
75 Years of Innovation: Acoustic Modem - Medium
WEBMar 3, 2021 · Deaf physicist Robert H. Weitbrecht invented an acoustic coupler that was inserted between the teletypewriter (TTY) and a telephone handset.
75 Years of Innovation: Acoustic Modem - SRI
WEBMar 3, 2021 · An acoustic coupler connects a modem to a telephone line to transmit data from one computer to another. The acoustic coupler that Van Geen developed used an ordinary handset placed in a cradle containing …
Robert H. Weitbrecht and James C. Marsters TTY modem
WEBThe Robert H. Weitbrecht James C. Marsters TTY modem collection contains two metallic boxes with electronic circuitry inside that made up the acoustic telephone coupler (now …
Robert H. Weitbrecht - deafpeople.com
WEBThey formed a partnership with Andrew Saks, a deaf mechanical engineer-businessman. Weitbrecht developed an acoustic coupler, which enabled typewritten communication …
WEBtic coupler. An acoustic coupler accepts elec-tronic signals from a TTY and converts them into sound which it then sends into the microphone of a telephone handset. It also …
Development of the TTY - Part III - Part III | Hearing Health ...
WEBJan 25, 2016 · Providing start-up funds for APCOM to manufacture acoustic coupler modems which led to all the various Telephone Devices for the Deaf or TDD’s of the …
Acoustic coupler - Wikipedia
WEBMany models of Telecommunications Device for the Deaf (TDD) still have a built-in acoustic coupler, which allow more universal use with pay phones and for emergency …
Early Computing: The Teletype and Acoustic Coupler Modem
WEBAn acoustic coupler is a device couples electric signals-usually into and out of a telephone network. This link is achieved through sound, not a direct electrical connection. Back in …
Acoustic modem - SRI
WEBSep 19, 2024 · 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 …
Robert H. Weitbrecht | Browse by Scientist | Deaf Scientist TWU
WEBPhonetype Acoustic Coupler. Credit: ITU Pictures. After a few years he changed jobs. He went into business with two other deaf men. One of them was James C. Marsters. Their …
Portable Teletype Machine for the Deaf - Wisconsin Historical …
WEBSep 21, 2006 · In 1964 Weitbrecht developed the acoustic coupler, a type of modem that could accurately transmit and receive teletype messages via telephone lines, thus finally …
James Marsters, Deaf Inventor, Dies at 85 - The New York Times
WEBAug 23, 2009 · Mr. Weitbrecht came up with the idea of using an acoustic coupler now called a modem to connect two of the Teletype machines.
WEBacoustic coupler modem and dials the telephone. When the call is answered, the caller types the message, stopping to type “GA” (“go ahead”) when a response is expected. …
WEBuse by deaf people. Robert Weitbrecht, a deaf physicist, designed an acoustic coupler that could convert the electrical signals coming from the TTY to activate the keys of the TTY …
Welcome to CAD - California Association for the Deaf
WEBSep 29, 2024 · Since 1906, California Association of the Deaf’s mission is to preserve, protect, and promote linguistic, human, and civil rights for all Deaf Californians.
Fast energy transfer in an acoustic multicavity coupler based on …
WEB6 days ago · In this work, a compact acoustic coupler based on the Su-Schrieffer-Heeger topological model is presented. The coupler is composed of a cavity array and a series …
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