GB676836A - Electric impulse signalling system - Google Patents

Electric impulse signalling system

Info

Publication number
GB676836A
GB676836A GB11163/50A GB1116350A GB676836A GB 676836 A GB676836 A GB 676836A GB 11163/50 A GB11163/50 A GB 11163/50A GB 1116350 A GB1116350 A GB 1116350A GB 676836 A GB676836 A GB 676836A
Authority
GB
United Kingdom
Prior art keywords
pulse
incoming
regenerator
subscriber
call
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
GB11163/50A
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
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB676836A publication Critical patent/GB676836A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K5/00Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/13Arrangements having a single output and transforming input signals into pulses delivered at desired time intervals
    • H03K5/135Arrangements having a single output and transforming input signals into pulses delivered at desired time intervals by the use of time reference signals, e.g. clock signals
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K5/00Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/01Shaping pulses
    • H03K5/04Shaping pulses by increasing duration; by decreasing duration
    • H03K5/05Shaping pulses by increasing duration; by decreasing duration by the use of clock signals or other time reference signals
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K5/00Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/01Shaping pulses
    • H03K5/08Shaping pulses by limiting; by thresholding; by slicing, i.e. combined limiting and thresholding
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K9/00Demodulating pulses which have been modulated with a continuously-variable signal
    • H03K9/04Demodulating pulses which have been modulated with a continuously-variable signal of position-modulated pulses
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q1/00Details of selecting apparatus or arrangements
    • H04Q1/18Electrical details
    • H04Q1/30Signalling arrangements; Manipulation of signalling currents
    • H04Q1/40Signalling arrangements; Manipulation of signalling currents whereby duration of pulse or interval between two pulses is variable
    • H04Q1/42Signalling arrangements; Manipulation of signalling currents whereby duration of pulse or interval between two pulses is variable involving the position of a pulse in a cycle

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Interface Circuits In Exchanges (AREA)
GB11163/50A 1949-06-16 1950-05-05 Electric impulse signalling system Expired GB676836A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1012141T 1949-06-16

Publications (1)

Publication Number Publication Date
GB676836A true GB676836A (en) 1952-08-06

Family

ID=9570576

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11163/50A Expired GB676836A (en) 1949-06-16 1950-05-05 Electric impulse signalling system

Country Status (4)

Country Link
BE (1) BE495742A (fr)
FR (2) FR1012141A (fr)
GB (1) GB676836A (fr)
NL (1) NL154251B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3517322A (en) * 1968-01-22 1970-06-23 Atomic Energy Commission Phase detector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3517322A (en) * 1968-01-22 1970-06-23 Atomic Energy Commission Phase detector

Also Published As

Publication number Publication date
FR1012141A (fr) 1952-07-04
NL154251B (nl)
FR1012382A (fr) 1952-07-18
BE495742A (fr)

Similar Documents

Publication Publication Date Title
ES352636A1 (es) Un aparato, para utilizar con un telefono, para discriminarllamadas telefonicas que llegan.
GB567864A (en) Improvements in or relating to telecommunication exchange systems
GB1329556A (en) Telephone systems
GB676836A (en) Electric impulse signalling system
GB769734A (en) Improvements in or relating to multi-channel pulse two-wire communication exchange systems
GB1037685A (en) High speed electronic switching telephone system
GB1001903A (en) Improvements in or relating to automatic telecommunication exchanges
GB1389017A (en) Apparatus for conversion of telephones connection in parallel to a common line to provide a private switching system
JPS5437511A (en) Conference connection system against incomimg call of junction line
GB647597A (en) Telecommunication exchange
GB608856A (en) Rectifier arrangement
GB1395193A (en) Telecommunications exchange systems
GB1053324A (fr)
GB788929A (en) Improvements in or relating to automatic telecommunication exchanges
GB1162047A (en) Automatic Telephone System
JPS5436106A (en) Service system of no response call back
GB663588A (en) Improvements in or relating to switching systems
GB1049476A (en) Voice-frequency key-dialling method
FR2382818A1 (fr) Procede de detection rapide du decrochage de postes telephoniques pendant le passage du courant d'appel et installation pour la mise en oeuvre de ce procede
JPS5220713A (en) Terminating call counter per crossbar automatic switchboard subscriber
JPS5621468A (en) Charging system
SE317409B (fr)
JPS5624864A (en) Automatic dial transmitter with guard function
GB559016A (en) Improvements in or relating to telephone or like systems
GB730955A (en) Improvements in or relating to automatic telephone exchange signalling and control systems