Who invented Morse code

Morse code was invented by the American inventor "Samuel Morse" and his assistant "Alfield Weir" in 1836; Morse code is Morse code. The on-and-off signal code expresses different English letters, numbers and punctuation marks through different arrangements.

The operating environment of this article: Windows 7 system, DELL G3 computer

Who invented the Morse code?

Morse code (English: Morse code) is a signal code that is on and off, expressing different English letters, numbers and punctuation marks through different arrangements. It was invented by American inventor Samuel Morse and his assistant Alfield Weir in 1836.

Morse code is an early form of digital communication, but it is different from modern binary codes that only use two states: 0 and 1. Its codes include five types:

1, Dot (·): 1

2, dash (-): 111

3, pause inside the character (between dot and dash): 0

4, Pause between characters: 000

5. Pause between words: 0000000

The history of Morse code

The earliest Morse code are dots and dashes that represent numbers. Numbers correspond to words, and you need to look up a code table to know the number corresponding to each word. Use one key to hit points, strokes, and pauses in between.

Although Morse invented the telegraph, he lacked the relevant expertise. He signed an agreement with Alfred Weir to help him build more practical equipment. Alfred Weir conceived a scheme whereby each character and punctuation mark could be sent independently of the other through dots, dashes and pauses in between. They agreed that this scheme of marking different symbols would be included in Morse's patent. This is now known as American Morse code, and it was used to transmit the world's first telegraph.

This code can be transmitted using a radio signal with a smooth and intermittent tone, often called a continuous wave (CW). It could be an electrical pulse in a telegraph wire, or it could be a mechanical or visual signal (such as a flash of light).

Generally speaking, any encoding method that can represent written characters as a variable-length signal can be called Morse code. But now the term is used to refer specifically to two types of Morse code that represent English letters and symbols: American Morse code, which was used in wired telegraph communication systems; and International Morse code, still in use today, uses only dots and dashes.

Telegraph companies charge according to the length of the letter to be sent. Commercial codes are carefully designed codes composed of five characters that are sent as one word. For example: BYOXO (Are you trying to crawl out of it?); LIOUY (Why do you not answer my question? Why not reply?); AYYLU (Not clearly coded, repeat more clearly. The coding is not clear, please repeat clearly.). These five-character abbreviations can be sent individually using Morse code. Some abbreviations are later commonly used on the modern Internet, such as CUL (See you later. Goodbye).

The Q abbreviations and Z abbreviations still used in amateur radio: they were originally used to exchange information such as communication quality, frequency changes, telegram numbers, etc. between operators; they are also used on mobile phones In the message ringtone, the manufacturer will still add the Morse code of the sentence "SMS (···--···)". Some TV stations and radio stations will also add Morse code elements to their IDs, such as "NEWS TODAY" in the opening song of wireless news and "heute" in the opening song of the German ZDF news program "Today".

On January 8, 1838, the Alfred Vail Company demonstrated a telegraph code using dots and dashes, the precursor to Morse code.

As an information encoding standard, Morse code has a long life that other encoding schemes cannot surpass. Morse code was used as an international standard in maritime communications until 1999. In 1997, when the French Navy stopped using Morse code, the last message sent was: "Attention everyone, this is our last cry before eternal silence!"

For more related knowledge, please Visit the FAQ section!

The above is the detailed content of Who invented Morse code. For more information, please follow other related articles on the PHP Chinese website!