![]() However, examination showed that his solution to sidetone was to maintain two separate telephone circuits and thus use twice as many transmission wires. Meucci has been further credited with the invention of an anti- sidetone circuit. Meucci demonstrated some sort of instrument in 1849 in Havana, Cuba, however, this may have been a variant of a string telephone that used wire. Unfortunately, serious burns from an accident, a lack of English, and poor business abilities resulted in Meucci's failing to develop his inventions commercially in America. In the 1880s Meucci was credited with the early invention of inductive loading of telephone wires to increase long-distance signals. Some of Meucci's notes purportedly written in 1857 describe the basic principle of electromagnetic voice transmission - or in other words, the telephone. He installed a telephone-like device within his house in order to communicate with his wife who was ill at the time. Meucci studied the principles of electromagnetic voice transmission for many years and was able to realise his dream of transmitting his voice through wires in 1856. A further discrepancy observed was that the device described in the 1871 caveat employed only a single conduction wire, with the telephone's transmitter-receivers being insulated from a 'ground return' path. Meucci claimed to have invented a paired electromagnetic transmitter and receiver, where the motion of a diaphragm modulated a signal in a coil by moving an electromagnet, although this was not mentioned in his 1871 U.S. In 1861, a description of it was reportedly published in an Italian-language New York newspaper, although no known copy of that newspaper issue or article has survived to the present day. The first American demonstration of Meucci's invention took place in Staten Island, New York in 1854. I have made experiments in this direction they are delicate and demand time and patience, but the approximations obtained promise a favorable result". ![]() It is certain that, in a more or less distant future, a speech will be transmitted by electricity. That is about the same time that Meucci later claimed to have created his first attempt at the telephone in Italy.īourseul explained: "Suppose that a man speaks near a movable disc sufficiently flexible to lose none of the vibrations of the voice that this disc alternately makes and breaks the currents from a battery: you may have at a distance another disc which will simultaneously execute the same vibrations. Innocenzo Manzetti considered the idea of a telephone as early as 1844, and may have made one in 1864, as an enhancement to an automaton built by him in 1849.Ĭharles Bourseul was a French telegraph engineer who proposed (but did not build) the first design of a "make-and-break" telephone in 1854. He observed that connecting and disconnecting the current caused a ringing sound in the magnet. In 1840, American Charles Grafton Page passed an electric current through a coil of wire placed between the poles of a horseshoe magnet. Gauss's and Weber's invention is purported to be the world's first electromagnetic telegraph. ![]() One precursor to the development of the electromagnetic telephone originated in 1833 when Carl Friedrich Gauss and Wilhelm Eduard Weber invented an electromagnetic device for the transmission of telegraphic signals at the University of Göttingen, in Lower Saxony, helping to create the fundamental basis for the technology that was later used in similar telecommunication devices. The essential idea of this toy was that a diaphragm can collect voice sounds from the voice sounds for reproduction at a distance. The classic example is the tin can telephone, a children's toy made by connecting the two ends of a string to the bottoms of two metal cans, paper cups or similar items. Sound waves are carried as mechanical vibrations along the string or wire from one diaphragm to the other. The concept of the telephone dates back to the string telephone or lover's telephone that has been known for centuries, comprising two diaphragms connected by a taut string or wire. JSTOR ( March 2018) ( Learn how and when to remove this template message).Unsourced material may be challenged and removed.įind sources: "Invention of the telephone" – news Please help improve this article by adding citations to reliable sources. This section needs additional citations for verification.
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