GB692456A - Improvements in or relating to start-stop telegraph repeaters - Google Patents

Improvements in or relating to start-stop telegraph repeaters

Info

Publication number
GB692456A
GB692456A GB1067051A GB1067051A GB692456A GB 692456 A GB692456 A GB 692456A GB 1067051 A GB1067051 A GB 1067051A GB 1067051 A GB1067051 A GB 1067051A GB 692456 A GB692456 A GB 692456A
Authority
GB
United Kingdom
Prior art keywords
condition
group
pulses
counting circuit
transmitter circuit
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
GB1067051A
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
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB1067051A priority Critical patent/GB692456A/en
Priority to GB922048A priority patent/GB692411A/en
Priority to CH298699D priority patent/CH298699A/en
Publication of GB692456A publication Critical patent/GB692456A/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
    • H04L1/24—Testing correct operation
    • H04L1/248—Distortion measuring systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/12—Compensating for variations in line impedance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/20—Repeater circuits; Relay circuits
    • H04L25/24—Relay circuits using discharge tubes or semiconductor devices
    • H04L25/242—Relay circuits using discharge tubes or semiconductor devices with retiming
    • H04L25/245—Relay circuits using discharge tubes or semiconductor devices with retiming for start-stop signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/16—Half-duplex systems; Simplex/duplex switching; Transmission of break signals non-automatically inverting the direction of transmission

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Dc Digital Transmission (AREA)
  • Rectifiers (AREA)

Abstract

692,456. Code telegraphy. STANDARD TELEPHONES & CABLES, Ltd., TERRY, V. J., RIDLER, D. S., and WEIR, D. A. March 25, 1949 [April 1, 1948], No. 10670/51. Divided out of 692,411. Drawings to Specification. Class 40 (iii). The subject-matter of this Specification is substantially the same as that of Specification 692,411, but the claims relate to a regenerative repeater for start-stop telegraph signals which comprises a normally operating source of pulses of a repetition rate which is high compared with the signal speed, means operative upon the receipt of a start element to cause said pulses to be applied to a counting circuit, means controlled by the counting circuit for examining the condition of each received signal element at its nominal centre, means controlled by the condition of the signal element examined to condition a transmitter circuit to transmit a similar element, and means for maintaining the transmitter circuit in that condition until it i again reconditioned. Specifications 621,817, [Group XXXIX], 636,700, [Group XL (c)], 639,827, 691,901, 692,415, [Group XIX], 692,457 and 692,458 also are referred to.
GB1067051A 1948-04-01 1948-04-01 Improvements in or relating to start-stop telegraph repeaters Expired GB692456A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB1067051A GB692456A (en) 1948-04-01 1948-04-01 Improvements in or relating to start-stop telegraph repeaters
GB922048A GB692411A (en) 1948-04-01 1948-04-01 Improvements in and relating to telegraph repeaters
CH298699D CH298699A (en) 1948-04-01 1949-04-01 Equalizer for spring telegraph signal element combinations.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1067051A GB692456A (en) 1948-04-01 1948-04-01 Improvements in or relating to start-stop telegraph repeaters
GB922048A GB692411A (en) 1948-04-01 1948-04-01 Improvements in and relating to telegraph repeaters

Publications (1)

Publication Number Publication Date
GB692456A true GB692456A (en) 1953-06-03

Family

ID=26242793

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1067051A Expired GB692456A (en) 1948-04-01 1948-04-01 Improvements in or relating to start-stop telegraph repeaters
GB922048A Expired GB692411A (en) 1948-04-01 1948-04-01 Improvements in and relating to telegraph repeaters

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB922048A Expired GB692411A (en) 1948-04-01 1948-04-01 Improvements in and relating to telegraph repeaters

Country Status (1)

Country Link
GB (2) GB692456A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1192237B (en) * 1956-09-28 1965-05-06 Siemens Ag Electronic equalizer for signal pulse combinations, especially for telegraph characters

Also Published As

Publication number Publication date
GB692411A (en) 1953-06-03

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