GB656063A - Receiver for signals consisting of variations of resistances or voltages in an electrical circuit - Google Patents

Receiver for signals consisting of variations of resistances or voltages in an electrical circuit

Info

Publication number
GB656063A
GB656063A GB10923/48A GB1092348A GB656063A GB 656063 A GB656063 A GB 656063A GB 10923/48 A GB10923/48 A GB 10923/48A GB 1092348 A GB1092348 A GB 1092348A GB 656063 A GB656063 A GB 656063A
Authority
GB
United Kingdom
Prior art keywords
relay
signal
voltages
receiver
odd
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
GB10923/48A
Inventor
Roelof Maarten Marie Oberman
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.)
Nederlanden Staat
Original Assignee
Nederlanden Staat
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 Nederlanden Staat filed Critical Nederlanden Staat
Publication of GB656063A publication Critical patent/GB656063A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/38—Signalling arrangements; Manipulation of signalling currents using combinations of direct currents of different amplitudes or polarities over line conductors or combination of line conductors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Abstract

656,063. Automatic exchange systems. STAATSBEDRIJF DER POSTERIJEN TELEGRAFIE EN TELEFONIE. April 20, 1948, No. 10923. Convention date, April 21, 1947. [Class 40 (iv)] In a receiver for digital signals consisting of the connection of different resistances or voltages into a circuit, the signals are grouped in pairs, each pair containing an odd and an even signal, and the receiver first determines the pair to which the signal belongs and then further determines whether the signal is odd or even. Resistances capable of producing at B of a comparison circuit signal voltages of - 32, - 34, - 36 ... - 52, are inserted at TSL. Relay NW operates over its coil NW(i) and the chain A... E is run down applying in turn voltages from the potentiometer R1 ... R7 of - 34, - 38, - 42 ... - 50 to point A of the comparison circuit until NW releases to stop the running down of the relay chain. Relay F then comes up to connect up coil NW(ii) of the relay NW. According as the signal is even or odd NW re-operates or not so that G only comes up in the latter case. The settings of relays B ... E, G are transferred to storage relays over leads 1, 2, 4, 8 via the wipers of a distributer switch (not shown) stepped by relay F. The relay chain may be replaced by a rotary or a cross-bar switch. Specification 655,369 is referred to.
GB10923/48A 1947-04-21 1948-04-20 Receiver for signals consisting of variations of resistances or voltages in an electrical circuit Expired GB656063A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL656063X 1947-04-21
NL2582349X 1947-04-21
NL968456X 1947-04-21

Publications (1)

Publication Number Publication Date
GB656063A true GB656063A (en) 1951-08-08

Family

ID=66522918

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10923/48A Expired GB656063A (en) 1947-04-21 1948-04-20 Receiver for signals consisting of variations of resistances or voltages in an electrical circuit

Country Status (4)

Country Link
US (1) US2582349A (en)
FR (1) FR968456A (en)
GB (1) GB656063A (en)
NL (1) NL65980C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2762038A (en) * 1952-06-11 1956-09-04 Underwood Corp Voltage measuring device
US9642687B2 (en) 2010-06-15 2017-05-09 The Procter & Gamble Company Methods for whitening teeth

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE22794E (en) * 1946-10-01 G deakin
US2088793A (en) * 1933-03-24 1937-08-03 Gen Railway Signal Co Centralized traffic controlling system for railroads
US2295534A (en) * 1940-08-02 1942-09-15 Ibm Automatic meter-reading apparatus
US2407286A (en) * 1942-11-07 1946-09-10 Rita Smith Kinkead Communication system
US2454781A (en) * 1945-09-17 1948-11-30 Int Standard Electric Corp Matched potential control system

Also Published As

Publication number Publication date
NL65980C (en) 1900-01-01
FR968456A (en) 1950-11-28
US2582349A (en) 1952-01-15

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