• Short Summary

    A "letter telephone" claimed to be the world's first machine capable of transmitting and receiving both oral and written messages has been developed in Tokyo.

  • Description

    A "letter telephone" claimed to be the world's first machine capable of transmitting and receiving both oral and written messages has been developed in Tokyo.

    The manufacturers claim their machine will benefit overseas business callers as well as ordinary domestic users. In transmitting, the telephone operates with 91 per cent clarity in both written and oral signals on a single circuit.

    Experts predict that the telephones will cost as much as 600 pounds sterling but add that the price may drop when they begin mass producing. They have claimed that the telephone will make its debut on the international overseas service after an initiation period in Japan.

    SYNOPSIS: In Tokyo's Kasumigaseki building, Japanese engineers have developed what they claim to be the world's first letter telephone. The machine is capable of transmitting both voice and character signals over a single circuit with an accuracy level of 91 per cent.

    The developers claim that the telephone will remove all possibility of errors and misunderstandings in business calls of purely oral transmission, such as stock exchange deals involving long calculation. The machine works on an ordinary telephone circuit, but splits up the band into two parts, one handling voice and the other picking up signals for transcription.

    The only limitation of the telephone so far is that two users cannot send written messages simultaneously...

    The written system is operated by a special ball-point pen that contains a micro-switch that is activated by the pressure on the paper. The movement of the pen is transmitted to a similar device on the other pen which duplicates the movement.

    The letter telephone costs about 600 pounds to install at the moment, but the makers say that the price will drop when mass production starts. The unit will make its debut on the international circuit in the next two years, after an initiation period in Japan.

  • Tags

  • Data

    Film ID:
    VLVAANWZ4LLOL2HV9ULVJ5PXZJ0TJ
    Media URN:
    VLVAANWZ4LLOL2HV9ULVJ5PXZJ0TJ
    Group:
    Reuters - Source to be Verified
    Archive:
    Reuters
    Issue Date:
    01/09/1971
    Sound:
    Unknown
    HD Format:
    Available on request
    Stock:
    Colour
    Duration:
    00:01:40:00
    Time in/Out:
    /
    Canister:
    N/A

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