GB540839A - Improvements in or relating to telegraph systems - Google Patents

Improvements in or relating to telegraph systems

Info

Publication number
GB540839A
GB540839A GB780140A GB780140A GB540839A GB 540839 A GB540839 A GB 540839A GB 780140 A GB780140 A GB 780140A GB 780140 A GB780140 A GB 780140A GB 540839 A GB540839 A GB 540839A
Authority
GB
United Kingdom
Prior art keywords
interference
path
signal
grid
causes
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
Application number
GB780140A
Other languages
English (en)
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 BE469340D priority Critical patent/BE469340A/xx
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB780140A priority patent/GB540839A/en
Publication of GB540839A publication Critical patent/GB540839A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/14—Demodulator circuits; Receiver circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
GB780140A 1940-04-30 1940-04-30 Improvements in or relating to telegraph systems Expired GB540839A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BE469340D BE469340A (en:Method) 1940-04-30
GB780140A GB540839A (en) 1940-04-30 1940-04-30 Improvements in or relating to telegraph systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB780140A GB540839A (en) 1940-04-30 1940-04-30 Improvements in or relating to telegraph systems

Publications (1)

Publication Number Publication Date
GB540839A true GB540839A (en) 1941-10-31

Family

ID=9840001

Family Applications (1)

Application Number Title Priority Date Filing Date
GB780140A Expired GB540839A (en) 1940-04-30 1940-04-30 Improvements in or relating to telegraph systems

Country Status (2)

Country Link
BE (1) BE469340A (en:Method)
GB (1) GB540839A (en:Method)

Also Published As

Publication number Publication date
BE469340A (en:Method)

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