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GB660253A - Improvements in or relating to electric pulse generators - Google Patents

Improvements in or relating to electric pulse generators

Info

Publication number
GB660253A
GB660253A GB7723/47A GB772347A GB660253A GB 660253 A GB660253 A GB 660253A GB 7723/47 A GB7723/47 A GB 7723/47A GB 772347 A GB772347 A GB 772347A GB 660253 A GB660253 A GB 660253A
Authority
GB
United Kingdom
Prior art keywords
anode
extra
discharge
per cent
circle
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
GB7723/47A
Inventor
Alec Harley Reeves
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 GB7723/47A priority Critical patent/GB660253A/en
Priority to CH269005D priority patent/CH269005A/en
Priority to US15581A priority patent/US2581442A/en
Priority to FR963489D priority patent/FR963489A/fr
Priority to ES0183294A priority patent/ES183294A1/en
Publication of GB660253A publication Critical patent/GB660253A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/38—Cold-cathode tubes
    • H01J17/48—Cold-cathode tubes with more than one cathode or anode, e.g. sequence-discharge tube, counting tube, dekatron
    • 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
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/04—Distributors combined with modulators or demodulators
    • H04J3/042—Distributors with electron or gas discharge tubes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
    • H04J3/1676—Time-division multiplex with pulse-position, pulse-interval, or pulse-width modulation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/007—Sequential discharge tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Lasers (AREA)
  • Gas-Filled Discharge Tubes (AREA)
  • Particle Accelerators (AREA)

Abstract

660,253. Discharge apparatus. STANDARD TELEPHONES & CABLES, Ltd. March 19, 1948 [March 20, 1947], No. 7723/47. Class 39 (i). [Also in Group XL (c)] A cold cathode gas-filled sequence electric discharge tube of the type described in Specification 639,827, and operating in the manner described in Specification 639,839, is employed in a pulse modulation circuit (see Group XL (c)). The tube comprises cathodes in the form of short cylinders, and the preferred gas filling consists of 92 per cent neon, 1 per cent argon and 7 per cent hydrogen at a total pressure of 100 mm. mercury. The discharge gaps may be arranged in a straight line or in a circle, as shown. The anode 113 consists of a circular metal disc and the cathodes 114 are arranged in a circle concentric therewith. An extra cathode 128, so spaced from the anode 113 that a discharge takes place permanently therefrom, is located at the centre of the circle and is connected through an adjustable resistance 129 to an additional voltage source 130 of such a magnitude that the discharge is not extinguished by the extinguishing pulse applied through condenser 126 to the anode 113. This extra cathode provides a means of varying the general ionization level in the tube, as described in Specification 639,827. In a modified circuit, the extra cathode is provided with a corresponding extra anode which is connected separately to the positive H.T. terminal 119. The additional voltage source 130 is then unnecessary, since the extinguishing pulses will not affect the extra anode.
GB7723/47A 1947-03-20 1947-03-20 Improvements in or relating to electric pulse generators Expired GB660253A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB7723/47A GB660253A (en) 1947-03-20 1947-03-20 Improvements in or relating to electric pulse generators
CH269005D CH269005A (en) 1947-03-20 1948-03-18 Electrical impulse distributor.
US15581A US2581442A (en) 1947-03-20 1948-03-18 Electric pulse generator
FR963489D FR963489A (en) 1947-03-20 1948-03-19
ES0183294A ES183294A1 (en) 1947-03-20 1948-04-15 IMPROVEMENTS IN OR RELATED TO ELECTRIC PULSE GENERATORS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7723/47A GB660253A (en) 1947-03-20 1947-03-20 Improvements in or relating to electric pulse generators

Publications (1)

Publication Number Publication Date
GB660253A true GB660253A (en) 1951-11-07

Family

ID=9838524

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7723/47A Expired GB660253A (en) 1947-03-20 1947-03-20 Improvements in or relating to electric pulse generators

Country Status (5)

Country Link
US (1) US2581442A (en)
CH (1) CH269005A (en)
ES (1) ES183294A1 (en)
FR (1) FR963489A (en)
GB (1) GB660253A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB706010A (en) * 1950-02-28 1954-03-24 Standard Telephones Cables Ltd Improvements in or relating to signalling arrangements for multi-channel telecommunication systems

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1863278A (en) * 1929-10-07 1932-06-14 Communications Patents Inc System and apparatus for the electrical production of images
US2088474A (en) * 1934-08-08 1937-07-27 Westinghouse Electric & Mfg Co Translating apparatus
US2404920A (en) * 1940-09-27 1946-07-30 Research Corp Electronic discharge apparatus
US2443407A (en) * 1947-06-18 1948-06-15 Jr Nathaniel B Walcs Gaseous discharge device

Also Published As

Publication number Publication date
FR963489A (en) 1950-07-11
ES183294A1 (en) 1948-06-01
CH269005A (en) 1950-06-15
US2581442A (en) 1952-01-08

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