US1547492A - Special alphabet for messages sent by the telephotographic process - Google Patents

Special alphabet for messages sent by the telephotographic process Download PDF

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Publication number
US1547492A
US1547492A US540904A US54090422A US1547492A US 1547492 A US1547492 A US 1547492A US 540904 A US540904 A US 540904A US 54090422 A US54090422 A US 54090422A US 1547492 A US1547492 A US 1547492A
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US
United States
Prior art keywords
telephotographic
alphabet
messages sent
point
characters
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US540904A
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English (en)
Inventor
Belin Edouard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to FR554133D priority Critical patent/FR554133A/fr
Application filed by Individual filed Critical Individual
Priority to US540904A priority patent/US1547492A/en
Application granted granted Critical
Publication of US1547492A publication Critical patent/US1547492A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L21/00—Apparatus or local circuits for mosaic printer telegraph systems

Definitions

  • the forms, dimensions and spacing of the said characters are such as will enable the use of transmitting posts operating at the maximum speed of the electrical or like devices employed for sending purposes, as well as the maximum forward movement of the point when passing from one position to another.
  • No parts of a character are to be used which are susceptible of moving between two spiral paths of the tracing point, and the apparatus shall not employ an interval nor a thickness which is below the minimum required for the operation of the electrical devices.
  • the character of the alphabet should not contain elements the width of which is so small that they cannot be explored by the point when this point describes two consecutive spirals.
  • the thickness of the long branches of the body 6 is greater thanthe minimum at necessary for the operation of the electrical devices
  • Figure 1 If, for instance, the character is formed with a main body and three lateral elements on each side, Figure 1, the following may be used:
  • an exploring point located at the sending end, and symbolic characters in relief having a height exceeding in extent the space between the consecutive paths travelled by the said exploring point.
  • a spirally moving exploring point located at the sending end, and symbolic characters in relief comprising a rectangular body provided with lateral elements spaced apart a distance greater than thespace between the spirals of the helix described by the said exploring point.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Devices For Executing Special Programs (AREA)
US540904A 1922-03-03 1922-03-03 Special alphabet for messages sent by the telephotographic process Expired - Lifetime US1547492A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR554133D FR554133A (fr) 1922-03-03 1921-11-25 Alphabet spécial pour messages téléphotographiés
US540904A US1547492A (en) 1922-03-03 1922-03-03 Special alphabet for messages sent by the telephotographic process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US540904A US1547492A (en) 1922-03-03 1922-03-03 Special alphabet for messages sent by the telephotographic process

Publications (1)

Publication Number Publication Date
US1547492A true US1547492A (en) 1925-07-28

Family

ID=24157395

Family Applications (1)

Application Number Title Priority Date Filing Date
US540904A Expired - Lifetime US1547492A (en) 1922-03-03 1922-03-03 Special alphabet for messages sent by the telephotographic process

Country Status (2)

Country Link
US (1) US1547492A (fr)
FR (1) FR554133A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4447810A (en) * 1980-12-02 1984-05-08 Thomson-Csf Dot and dash segment display for simplified writing of Arabian language

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4447810A (en) * 1980-12-02 1984-05-08 Thomson-Csf Dot and dash segment display for simplified writing of Arabian language

Also Published As

Publication number Publication date
FR554133A (fr) 1923-06-05

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