Television Demonstration

Television requires apparatus for picking up the scene which is to be transmitted; converting the scene into electrical signals; transmitting these signals to receiving equipment and there optical1y recreating the scene by developing points of light corresponding in intensity and in position to the points of the original scene. The apparatus for accomplishing this, as developed in Bell Telephone Laboratories, was originally demonstrated by transmission over telephone wires from Washington, D. C., to New York, and by radio from an experimental radio station in New Jersey to New York, in April, 1927. The same receiving apparatus and equivalent transmitting apparatus were set up in the auditorium of Bell Telephone Laboratories for demonstration to the Society of Motion Picture Engineers. Transmission took place from one end of the auditorium to the other. The details of both transmitting and receiving apparatus were thus available for inspection by the audience. The operation was described and demonstrated by Dr. Ives, a member of the research department of the Laboratories who has been responsible for the co-ordination of the research and development work which led to the original accomplishment and to its subsequent advances.

Print ISSN

0096-6460

Published

1929-05

Content type

Original Research

DOI

10.5594/J13100