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Wabun code (和文モールス符号, wabun mōrusu fugō, Morse code for Japanese text) is a form of Morse code used to send Japanese language in kana characters. [1] Unlike International Morse Code, which represents letters of the Latin script, in Wabun each symbol represents a Japanese kana. [2]
A telegraph key, clacker, tapper or morse key is a specialized electrical switch used by a trained operator to transmit text messages in Morse code in a telegraphy system. [1] Keys are used in all forms of electrical telegraph systems, including landline (also called wire) telegraphy and radio (also called wireless) telegraphy .
The Nippon Telegraph and Telephone Corporation [a] (NTT) (Corporate Number: 7010001065142) [3] is a Japanese telecommunications holding company headquartered in Tokyo, Japan.. Ranked 55th in Fortune Global 500, NTT is the fourth largest telecommunications company in the world in terms of revenue, although it was the world's largest telecommunications company from 1996 to 2006, then it returned ...
A telegraph code is one of the character encodings used to transmit information by telegraphy. Morse code is the best-known such code.Telegraphy usually refers to the electrical telegraph, but telegraph systems using the optical telegraph were in use before that.
An example of a very simple keyer is a single telegraph key, which used for sending Morse code. In such a use, the term "to key" typically means to turn on and off a carrier wave. For example, it is said that one "keys the transmitter" by connecting some low-power stage of the amplifier in a transmitter to its follow-on stage, through the ...
A 6 × 6 grid is also usually used for the Cyrillic alphabet (the most common variant has 33 letters, but some have up to 37) [citation needed] or Japanese hiragana (see cryptography in Japan). A key could be used to reorder the alphabet in the square, with the letters (without duplicates) of the key being placed at the beginning and the ...
It used a 10×10 conversion square with the plaintext digits 0-9 across the top, key digits down the side, and the table contained the cipher text digits. As well as " kana ", the Chinese Telegraph Code was used to explain places or words, and the code groups 1951 or 5734 indicated that the CTC follows; an "absurd security flaw" as it was like ...
Japanese Navy ORANGE cryptographic device captured by US Navy. In the history of cryptography, 91-shiki ōbun injiki (九一式欧文印字機, "System 91 Typewriter for European Characters") or Angōki Taipu-A (暗号機 タイプA, "Type A Cipher Machine"), codenamed Red by the United States, was a diplomatic cryptographic machine used by the Japanese Foreign Office before and during World ...