Television
Jenkins moved on to work on television. He published an article on "Motion Pictures by Wireless" in 1913, but it was not until 1923 that he transmitted moving silhouette images for witnesses, and it was June 13, 1925 that he publicly demonstrated synchronized transmission of pictures and sound. He was granted the U.S. patent No. 1,544,156 (Transmitting Pictures over Wireless) on June 30, 1925 (filed on March 13, 1922).
His mechanical technologies (also pioneered by John Logie Baird) were later overtaken by electronic television such as devised by Vladimir Zworykin and Philo Farnsworth.
In 1928, the Jenkins Television Corporation opened the first television broadcasting station in the U.S., named W3XK, which went on air on July 2 and first sent from the Jenkins Labs in Washington and from 1929 on from Wheaton, Maryland on five nights a week. At first, the station could only send silhouette images due to its narrow bandwidth, but that was soon rectified and real black-and-white images were transmitted.
In March 1932, Jenkins Television Corporation was liquidated, and its assets were acquired by Lee DeForest Radio Corporation. Within months, the DeForest company went bankrupt, and the assets were bought by RCA, which stopped all work on electromechanical television.
Read more about this topic: Charles Francis Jenkins
Famous quotes containing the word television:
“The television critic, whatever his pretensions, does not labour in the same vineyard as those he criticizes; his grapes are all sour.”
—Frederic Raphael (b. 1931)
“So by all means let’s have a television show quick and long, even if the commercial has to be delivered by a man in a white coat with a stethoscope hanging around his neck, selling ergot pills. After all the public is entitled to what it wants, isn’t it? The Romans knew that and even they lasted four hundred years after they started to putrefy.”
—Raymond Chandler (1888–1959)