GB525675A - Improvements in or relating to multiplex telephony systems - Google Patents

Improvements in or relating to multiplex telephony systems

Info

Publication number
GB525675A
GB525675A GB11954/39A GB1195439A GB525675A GB 525675 A GB525675 A GB 525675A GB 11954/39 A GB11954/39 A GB 11954/39A GB 1195439 A GB1195439 A GB 1195439A GB 525675 A GB525675 A GB 525675A
Authority
GB
United Kingdom
Prior art keywords
cathode ray
anode
control
electrodes
april
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
GB11954/39A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB525675A publication Critical patent/GB525675A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/02—Cathode ray tubes; Electron beam tubes having one or more output electrodes which may be impacted selectively by the ray or beam, and onto, from, or over which the ray or beam may be deflected or de-focused
    • H01J31/06—Cathode ray tubes; Electron beam tubes having one or more output electrodes which may be impacted selectively by the ray or beam, and onto, from, or over which the ray or beam may be deflected or de-focused with more than two output electrodes, e.g. for multiple switching or counting
    • 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
    • H04J3/045—Distributors with CRT

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • X-Ray Techniques (AREA)
  • Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
  • Electrostatic Separation (AREA)
  • Devices For Supply Of Signal Current (AREA)

Abstract

525,675. Thermionic distributers. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. April 20, 1939, No. 11954. Convention date, April 23, 1938. [Classes 39 (i) and 40 (v)] In multiplex telephony employing thermionic distributers, cathode ray tubes are used with a number of control electrodes or anodes arranged side by side in the direction of movement of the cathode ray beam which is displaced abruptly from one control electrode or anode to the next. At the transmitter a cathode ray tube 6, Fig. 1, has arranged behind the slit-like apertures in a screen 10, a number of control electrodes 11 connected to the sources 1-4. A common anode 12 is connected to the transmission line 5. The cathode ray beam is deflected by a voltage of the form shown in Fig. 2, applied to the plates 13 from the source 14 which may be of the form described in Specification 523,441. The beam thus impinges on the anode 12 under the control of one of the electrodes 11 for a time # t and is cut off and passes on to the next slit in a time T. -The cathode ray tube 16 at the receiver has its control electrode 18 connected to the transmission line and the beam is deflected over anodes 20, connected to the receivers 1-4, in synchronism with the beam at the transmitter. The source 22 providing the deflecting potentials is synchronized by means of the interruptions in the oscillations received over line 5 which are separated by filter 23.
GB11954/39A 1938-04-23 1939-04-20 Improvements in or relating to multiplex telephony systems Expired GB525675A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE210435X 1938-04-23

Publications (1)

Publication Number Publication Date
GB525675A true GB525675A (en) 1940-09-02

Family

ID=5797352

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11954/39A Expired GB525675A (en) 1938-04-23 1939-04-20 Improvements in or relating to multiplex telephony systems

Country Status (5)

Country Link
US (1) US2265216A (en)
BE (1) BE433923A (en)
CH (1) CH210435A (en)
FR (1) FR853355A (en)
GB (1) GB525675A (en)

Families Citing this family (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2565102A (en) * 1941-03-15 1951-08-21 Products & Licensing Corp System for connecting a single channel with a plurality of channels in periodical succession
US2427670A (en) * 1941-12-06 1947-09-23 Alfred N Goldsmith Radio centercasting system
US2446945A (en) * 1942-08-25 1948-08-10 Rca Corp Electronic computing device
US2436677A (en) * 1942-12-31 1948-02-24 Rca Corp Incremental deflection of cathoderay beam
US2437027A (en) * 1943-01-12 1948-03-02 John H Homrighous Time division multiplex communication system
US2447233A (en) * 1943-04-07 1948-08-17 Standard Telephones Cables Ltd Pulse time modulation multiplex receiver
FR962120A (en) * 1943-04-07 1950-06-02
US2434189A (en) * 1943-11-30 1948-01-06 Electronbeam Ltd Multiple regulator system
US2696522A (en) * 1944-01-22 1954-12-07 Robert H Rines Visual reproduction of distant objects
US2420374A (en) * 1944-07-01 1947-05-13 Rca Corp Pulse multiplex transmission system
US2501791A (en) * 1944-08-10 1950-03-28 Stanolind Oil & Gas Co Inkless recorder
US2532719A (en) * 1944-10-16 1950-12-05 John H Homrighous Dimensional radio communication system
BE474803A (en) * 1944-11-25
BE474049A (en) * 1945-05-14
US2448487A (en) * 1945-06-14 1948-08-31 Gen Railway Signal Co Selective signaling system
US2531817A (en) * 1945-08-04 1950-11-28 Rca Corp Compensated channel selector
US3104316A (en) * 1945-08-20 1963-09-17 Philip H Allen Registers
BE470595A (en) * 1945-09-11
US2533405A (en) * 1945-09-15 1950-12-12 Nat Union Radio Corp Demodulation apparatus for pulse multiplex pulse time modulated signals
US2472774A (en) * 1945-10-17 1949-06-07 Farnsworth Res Corp Irregular interlace scanning system
US2476966A (en) * 1945-10-25 1949-07-26 Paul M Erlandson Radial beam tube assembly
US3076146A (en) * 1945-12-27 1963-01-29 Bell Telephone Labor Inc Cathode beam tube circuit having means for converting current variations to stepped waveform
NL69954C (en) * 1946-01-25
BE477654A (en) * 1946-01-26
US2556179A (en) * 1946-03-02 1951-06-12 Int Standard Electric Corp Multiple pulse producing system
US2492136A (en) * 1946-03-14 1949-12-27 Fed Telecomm Lab Inc Electronic telephone exchange
US2489253A (en) * 1946-06-18 1949-11-29 Walter L Andre Multisignal recording system with signal identification
BE479963A (en) * 1946-06-22
BE478251A (en) * 1946-07-27
BE477244A (en) * 1946-08-24
US2492346A (en) * 1946-10-05 1949-12-27 Fed Telecomm Lab Inc Translator
US2474811A (en) * 1946-10-05 1949-07-05 Fed Telecomm Lab Inc Translating system
US2536654A (en) * 1947-01-04 1951-01-02 Rca Corp Pulse multiplex transmission system
US2499844A (en) * 1947-01-16 1950-03-07 Philco Corp Receiver for pulse-position-modulation systems
US2524708A (en) * 1947-02-06 1950-10-03 Gen Electric Co Ltd Pulse multiplex receiving system
US2605360A (en) * 1947-03-10 1952-07-29 Rca Corp Time division multiplex system utilizing a step-wave generator in the distributor circuit
US2474810A (en) * 1947-03-22 1949-07-05 Int Standard Electric Corp Multichannel cyclophon
US2568779A (en) * 1947-08-14 1951-09-25 Veaux Henri Maurice Multiplex system for telegraphic and radiotelegraphic transmission with decametric waves
US2553572A (en) * 1947-11-10 1951-05-22 Int Standard Electric Corp Cross talk reduction in pulse multiplex receiver systems
US2543738A (en) * 1947-11-15 1951-02-27 Rca Corp Time division pulse multiplex system
US2496633A (en) * 1947-12-24 1950-02-07 Bell Telephone Labor Inc Multitarget cathode-ray device
GB652397A (en) * 1948-03-16 1951-04-25 Gen Electric Co Ltd Improvements in and relating to multi-channel pulse signalling systems
GB666974A (en) * 1948-06-14 1952-02-20 British Telecomm Res Ltd Improvements in telegraph distributors
US2599949A (en) * 1948-06-24 1952-06-10 Nat Union Radio Corp Electronic stepping switch
US3131263A (en) * 1961-12-18 1964-04-28 Bell Telephone Labor Inc Data transmission system

Also Published As

Publication number Publication date
BE433923A (en)
CH210435A (en) 1940-07-15
FR853355A (en) 1940-03-18
US2265216A (en) 1941-12-09

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