Classifications

• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
  • H04L15/00—Apparatus or local circuits for transmitting or receiving dot-and-dash codes, e.g. Morse code
  • H04L15/04—Apparatus or circuits at the transmitting end
  • H04L15/06—Apparatus or circuits at the transmitting end with a restricted number of keys, e.g. separate key for each type of code element
  • H04L15/08—Apparatus or circuits at the transmitting end with a restricted number of keys, e.g. separate key for each type of code element with a single key which transmits dots in one position and dashes in a second position
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
  • H04L15/00—Apparatus or local circuits for transmitting or receiving dot-and-dash codes, e.g. Morse code
  • H04L15/04—Apparatus or circuits at the transmitting end

Landscapes

• Engineering & Computer Science (AREA)
• Computer Networks & Wireless Communication (AREA)
• Signal Processing (AREA)
• Measuring Leads Or Probes (AREA)
• Transmission And Conversion Of Sensor Element Output (AREA)
• Input From Keyboards Or The Like (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=19782736

Family Applications (1)

Country Status (5)

• 0
  • NL NL20968D patent/NL20968C/xx active
• 1928
  • 1928-01-24 DE DESCH85237D patent/DE518219C/de not_active Expired
  • 1928-02-28 FR FR654714D patent/FR654714A/fr not_active Expired
  • 1928-02-29 GB GB6364/28A patent/GB290652A/en not_active Expired
  • 1928-03-20 US US263040A patent/US1780507A/en not_active Expired - Lifetime

Also Published As

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