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Slow-scan television ( SSTV) is a picture transmission method, used mainly by amateur radio operators, to transmit and receive static pictures via radio in monochrome or color.
Passband modulation. Modulated continuous wave (MCW) is Morse code telegraphy transmitted using an audio tone to modulate a carrier wave . Continuous wave (CW), by contrast, does not use a subcarrier, so there is no emission at all between Morse code symbols. MCW can be generated by any AM or FM radio transmitter with audio input from an audio ...
Steganography includes the concealment of information within computer files. In digital steganography, electronic communications may include steganographic coding inside of a transport layer, such as a document file, image file, program, or protocol. Media files are ideal for steganographic transmission because of their large size.
The Chinese telegraph code can be used for a Chinese input method for computers. Ordinary computer users today hardly master it because it needs a lot of rote memorization. However, the related Four-Corner Method, which allows one to look up characters by shape, is used. Both the Hong Kong and Macau Resident Identity Cards display the Chinese ...
The Cooke and Wheatstone telegraph was an early electrical telegraph system dating from the 1830s invented by English inventor William Fothergill Cooke and English scientist Charles Wheatstone. It was a form of needle telegraph, and the first telegraph system to be put into commercial service. The receiver consisted of a number of needles that ...
Vibroplex Co., Inc. Vibroplex is the brand of side-to-side mechanical, semi-automatic Morse key first manufactured and sold in 1905 by the Vibroplex Company, after its invention and patent [1] by Horace Greeley Martin of New York City in 1904. The original device became known as a "bug", most likely due to the original logo, which showed an ...
Thue–Morse sequence. This graphic demonstrates the repeating and complementary makeup of the Thue–Morse sequence. In mathematics, the Thue–Morse sequence or Prouhet–Thue–Morse sequence or parity sequence [1] is the binary sequence (an infinite sequence of 0s and 1s) obtained by starting with 0 and successively appending the Boolean ...
Adventures by Morse is a syndicated adventure series produced, written and directed by Carlton E. Morse [1] in the mid-1940s, shortly after NBC canceled his I Love a Mystery series. Morse produced 52 episodes of the program, each 30 minutes long.