GB741708A - Improvements in or relating to multiplex pulse signalling systems - Google Patents

Improvements in or relating to multiplex pulse signalling systems

Info

Publication number
GB741708A
GB741708A GB3236453A GB3236453A GB741708A GB 741708 A GB741708 A GB 741708A GB 3236453 A GB3236453 A GB 3236453A GB 3236453 A GB3236453 A GB 3236453A GB 741708 A GB741708 A GB 741708A
Authority
GB
United Kingdom
Prior art keywords
condenser
pulse
channel
selecting
nov
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
GB3236453A
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.)
Telefunken AG
Original Assignee
Telefunken AG
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 Telefunken AG filed Critical Telefunken AG
Publication of GB741708A publication Critical patent/GB741708A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/04—Distributors combined with modulators or demodulators
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/01—Shaping pulses

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Time-Division Multiplex Systems (AREA)

Abstract

741,708. Multiplex pulse signalling. TELEFUNKEN GES., [formerly TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE]. Nov. 23, 1953 [Nov. 22, 1952], No. 32364/53. Class 40 (5). For selecting and demodulating phase-modulated channel pulses in a multiplex communication system, regularlyoccurring negative channel-selecting pulses from terminal 13 through condenser 15 and diode 16 reverse the charge on condenser 11, to form the leading edge of a duration-modulated pulse on the condenser, the trailing edge of which occurs when the next positive channel pulse from terminal 7, through condenser 9 and diode 10, again reverses the charge on condenser 11. Leak resistances 12, 17 are dimensioned to produce such bias voltages that the circuit only responds to the channel pulse immediately succeeding a selecting pulse.
GB3236453A 1952-11-22 1953-11-23 Improvements in or relating to multiplex pulse signalling systems Expired GB741708A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET7016A DE1056677B (en) 1952-11-22 1952-11-22 Circuit arrangement for channel selection with simultaneous conversion of the modulation type

Publications (1)

Publication Number Publication Date
GB741708A true GB741708A (en) 1955-12-07

Family

ID=7545468

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3236453A Expired GB741708A (en) 1952-11-22 1953-11-23 Improvements in or relating to multiplex pulse signalling systems

Country Status (2)

Country Link
DE (1) DE1056677B (en)
GB (1) GB741708A (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH276291A (en) * 1944-05-26 1951-06-30 Standard Telephone & Radio Sa Device for transforming phase-modulated pulses into duration-modulated pulses.
BE479412A (en) * 1944-08-07

Also Published As

Publication number Publication date
DE1056677B (en) 1959-05-06

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