Chinese telegraph code

Chinese commercial codeChinese telegraph dictionarycode
The Chinese telegraph code, Chinese telegraphic code, or Chinese commercial code ( or ) is a four-digit decimal code (character encoding) for electrically telegraphing messages written with Chinese characters.wikipedia
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Character encoding

character setComputer encodingsencoding
The Chinese telegraph code, Chinese telegraphic code, or Chinese commercial code ( or ) is a four-digit decimal code (character encoding) for electrically telegraphing messages written with Chinese characters.
The earliest codes were based upon manual and hand-written encoding and cyphering systems, such as Bacon's cipher, Braille, International maritime signal flags, and the 4-digit encoding of Chinese characters for a Chinese telegraph code (Hans Schjellerup, 1869).

Chinese input methods for computers

input methodChinese input methodsChinese input method
The Four-Corner Method was developed in the 1920s to allow people to more easily look up characters by the shape, and remains in use today as a Chinese input method for computers.
Chinese government agencies entered characters using a long, complicated list of Chinese telegraph codes, which assigned different numbers to each character.

Four-Corner Method

Four corner methodfour corner encoding
The Four-Corner Method was developed in the 1920s to allow people to more easily look up characters by the shape, and remains in use today as a Chinese input method for computers.
Its original purpose was to aid telegraphers in looking up Chinese telegraph code (CST) numbers in use at that time from long lists of characters.

Morse code

MorseInternational Morse CodeMorse-code
It is transmitted using the Morse code.
For Chinese, Chinese telegraph code is used to map Chinese characters to four-digit codes and send these digits out using standard Morse code.

Hans Schjellerup

Hans Carl Frederik Christian SchjellerupHans C. F. C. SchjellerupSchjellerup
Septime Auguste Viguier, a Frenchman and customs officer in Shanghai, published a codebook (Viguier 1872), succeeding Danish astronomer Hans Carl Frederik Christian Schjellerup’s earlier work.
In 1869, he drafted a proposal for a Chinese telegraph dictionary, with each of 5,454 characters being assigned a number.

Macau Resident Identity Card

Macau Permanent Resident Identity CardBilhete de Identidade de ResidenteMacau identity card
Both the Hong Kong and Macau Resident Identity Cards display the Chinese telegraph code for the holder’s Chinese name (Immigration Department of Hong Kong 2006).

Hong Kong identity card

Hong Kong Permanent Identity CardHKIDHong Kong ID card
Both the Hong Kong and Macau Resident Identity Cards display the Chinese telegraph code for the holder’s Chinese name (Immigration Department of Hong Kong 2006).

Telegraph code

symbolic codes
The Chinese telegraph code uses a codebook of around 9,800 characters (7,000 when originally launched in 1871) which are each assigned a four-digit number.

Electrical telegraph

electric telegraphtelegraphtelegraph line
The Chinese telegraph code, Chinese telegraphic code, or Chinese commercial code ( or ) is a four-digit decimal code (character encoding) for electrically telegraphing messages written with Chinese characters.

Chinese characters

ChineseChinese characterChinese:
The Chinese telegraph code, Chinese telegraphic code, or Chinese commercial code ( or ) is a four-digit decimal code (character encoding) for electrically telegraphing messages written with Chinese characters.

Radical (Chinese characters)

radicalradicalsRadical (Chinese character)
Chinese characters are arranged and numbered in dictionary order according to their radicals and strokes.

Bopomofo

ZhuyinZhuyin FuhaoMandarin Phonetic Symbols
The codebook also defines codes for Zhuyin alphabet, Latin alphabet, Cyrillic alphabet, and various symbols including special symbols for months, days in a month, and hours.

GN Store Nord

Great Northern Telegraph CompanyStore Nordiske TelegrafselskabDet Store Nordiske Telegraf-Selskab
The first telegraph code for Chinese was brought into use soon after the Great Northern Telegraph Company (大北電報公司 / 大北电报公司 Dàběi Diànbào Gōngsī) introduced telegraphy to China in 1871.

Zheng Guanying

Cheng Kuan-yingZhen g Guanying
In consideration of the former code’s insufficiency and disorder of characters, Zheng Guanying compiled a new codebook in 1881.

China

People's Republic of ChinaChineseCHN
After the establishment of the People’s Republic of China in 1949, the codebook forked into two different versions, due to revisions made in the Mainland China and Taiwan independently from each other.

Simplified Chinese characters

Simplified ChineseSimplifiedChinese
The Mainland version, the Standard Telegraph Codebook, adopted the simplified Chinese characters in 1983.

Romanization

Romanizeromanizedromanisation
Wu in Mandarin becomes Mr. Ng in Cantonese ; while Mr. Wu in Cantonese would become Mr. Hu in Mandarin and differing romanization systems (Mr.

Pinyin

Hanyu PinyinpPīnyīn
Xiao in the Hanyu Pinyin system, and Mr. Hsiao in the Wade–Giles system) can create serious problems for investigators, but can be remedied by application of Chinese telegraph code.

Wade–Giles

Wade-Gilesformerlyformerly romanized
Xiao in the Hanyu Pinyin system, and Mr. Hsiao in the Wade–Giles system) can create serious problems for investigators, but can be remedied by application of Chinese telegraph code.

Code point

codepointcode pointscharacter codes

Yi (Chinese surname)

YiDịch
Yì is a Chinese surname, in Cantonese it is transliterated as Yick or Yik, the Chinese commercial code (CCC) of which is 2496.

A Chinese–English Dictionary

A Chinese-English DictionaryChinese–English Dictionary
People in China were using the dictionary numbers as a Chinese telegraph code, that is, a character encoding index for telegraphs written in Chinese characters—analogous with modern Chinese input methods for computers.

Ocean of Words

Though he knows nothing about the her, he grows infatuated with her, clinging to her "golden finger" as his lasting memory of her as they exchange messages through code.