GB491728A - Improvements in or relating to circuit arrangements for separating electric signal pulses - Google Patents

Improvements in or relating to circuit arrangements for separating electric signal pulses

Info

Publication number
GB491728A
GB491728A GB7062/37A GB706237A GB491728A GB 491728 A GB491728 A GB 491728A GB 7062/37 A GB7062/37 A GB 7062/37A GB 706237 A GB706237 A GB 706237A GB 491728 A GB491728 A GB 491728A
Authority
GB
United Kingdom
Prior art keywords
pulses
undelayed
grids
long
valve
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
GB7062/37A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB7062/37A priority Critical patent/GB491728A/en
Priority to US193401A priority patent/US2211942A/en
Priority to FR835087D priority patent/FR835087A/en
Priority to DEE50930D priority patent/DE764493C/en
Priority to GB14917/38A priority patent/GB515210A/en
Publication of GB491728A publication Critical patent/GB491728A/en
Priority to US274218A priority patent/US2227052A/en
Priority to DEE52566D priority patent/DE757815C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/30—Time-delay networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H04N5/08—Separation of synchronising signals from picture signals
    • H04N5/10—Separation of line synchronising signal from frame synchronising signal or vice versa
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Details Of Television Scanning (AREA)
  • Dot-Matrix Printers And Others (AREA)
  • Pulse Circuits (AREA)
  • Picture Signal Circuits (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

491,728. Television ; type printing telegraphy. WHITE, E. L. C. March 10, 1937, No. 7062. [Class 40 (iii)] Pulses of long duration (e.g. frame synchronizing signals) are isolated from a mixture of pulses of long and short duration, by applying the mixture to two parallel paths, one of which comprises a delay network, so that on combining the outputs, the delayed and undelayed long pulses overlap to produce a signal distinguished by amplitude which is isolated by an amplitude filter. In the Figure, the two paths comprise valve 3, and delay network 7 and valve 4; the outputs are combined and the oscillator 5, operating as disclosed in Specification 402,629, is biassed to be controlled only by the derived pulses of greater amplitude. The delayed and undelayed pulses may be applied to the anodes of a double diode, Fig. 4 (not shown), or to the grids of a double triode, Fig. 5 (not shown), or may be applied to the two control grids of a hexode valve biassed to pass current only when both grids are energized, Fig. 2 (not shown) ; in this case, the mixed signals may also be developed in the output by a triode portion.of the hexode energized with the undelayed pulses. The invention is applied to television, the multiplex signalling system described in Specification 470,495, and typeprinting telegraphy. Specifications 420,391 and 455,375 also are referred to.
GB7062/37A 1937-03-10 1937-03-10 Improvements in or relating to circuit arrangements for separating electric signal pulses Expired GB491728A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB7062/37A GB491728A (en) 1937-03-10 1937-03-10 Improvements in or relating to circuit arrangements for separating electric signal pulses
US193401A US2211942A (en) 1937-03-10 1938-03-02 Circuit arrangement for separating electrical signal pulses
FR835087D FR835087A (en) 1937-03-10 1938-03-10 Improvements to circuits for separation of pulses from electrical signals
DEE50930D DE764493C (en) 1937-03-10 1938-03-11 Arrangement for the separation of pulses of longer duration from those of shorter duration
GB14917/38A GB515210A (en) 1937-03-10 1938-05-19 Improvements in or relating to circuit arrangements for separating electric signal pulses
US274218A US2227052A (en) 1937-03-10 1939-05-17 Circuit arrangement for separating electric pulses
DEE52566D DE757815C (en) 1937-03-10 1939-05-20 Circuit arrangement for the separation of electrical pulses of longer duration from other pulses of shorter duration

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7062/37A GB491728A (en) 1937-03-10 1937-03-10 Improvements in or relating to circuit arrangements for separating electric signal pulses
GB14917/38A GB515210A (en) 1937-03-10 1938-05-19 Improvements in or relating to circuit arrangements for separating electric signal pulses

Publications (1)

Publication Number Publication Date
GB491728A true GB491728A (en) 1938-09-08

Family

ID=32071223

Family Applications (2)

Application Number Title Priority Date Filing Date
GB7062/37A Expired GB491728A (en) 1937-03-10 1937-03-10 Improvements in or relating to circuit arrangements for separating electric signal pulses
GB14917/38A Expired GB515210A (en) 1937-03-10 1938-05-19 Improvements in or relating to circuit arrangements for separating electric signal pulses

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB14917/38A Expired GB515210A (en) 1937-03-10 1938-05-19 Improvements in or relating to circuit arrangements for separating electric signal pulses

Country Status (4)

Country Link
US (2) US2211942A (en)
DE (2) DE764493C (en)
FR (1) FR835087A (en)
GB (2) GB491728A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2502454A (en) * 1944-12-27 1950-04-04 Standard Telephones Cables Ltd Method and means for improving signal to noise ratio of selected pulse signals
US2512699A (en) * 1945-12-06 1950-06-27 Us Sec War Radio pulse receiver interference eliminator
DE757815C (en) * 1937-03-10 1952-01-31 Electric & Musical Ind Ltd Hay Circuit arrangement for the separation of electrical pulses of longer duration from other pulses of shorter duration
DE938554C (en) * 1945-10-30 1956-02-02 Int Standard Electric Corp Multi-channel messaging system for the transmission of time-modulated signal pulses

Families Citing this family (74)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2712114A (en) * 1955-06-28 aiken
US2416424A (en) * 1939-03-16 1947-02-25 Hazeltine Research Inc Synchronizing-signal separator
BE476627A (en) * 1941-12-19
GB566169A (en) * 1942-07-03 1944-12-18 Standard Telephones Cables Ltd Improvements relating to radio navigational systems
NL73141C (en) * 1943-04-17
US2435579A (en) * 1943-05-10 1948-02-10 Oliver T Francis Voltage magnitude discriminator circuit
US2489297A (en) * 1943-05-24 1949-11-29 Standard Telephones Cables Ltd Electronic pulse filtering system
US2434937A (en) * 1943-05-24 1948-01-27 Standard Telephones Cables Ltd Selective filtering system
US2527474A (en) * 1943-10-14 1950-10-24 Luis W Alvarez Radio beacon and discriminating circuit therefor
US2444426A (en) * 1943-10-26 1948-07-06 Standard Telephones Cables Ltd Repeater control system
BE473180A (en) * 1943-10-26
GB582330A (en) * 1943-12-24 1946-11-13 Walter Leslie Watton Improvements in or relating to electrical pulse separating circuits
US2444741A (en) * 1943-12-31 1948-07-06 Hazeltine Research Inc Wave-signal translating system
US2465925A (en) * 1944-05-18 1949-03-29 Rca Corp Radio control system
US2510139A (en) * 1944-05-18 1950-06-06 Rca Corp Radio control system
US2535061A (en) * 1944-08-19 1950-12-26 Standard Telephones Cables Ltd Electrical pulse width shaper and selector
US2668236A (en) * 1944-09-23 1954-02-02 Philco Corp Electrical pulse-width discriminator
US2495690A (en) * 1945-01-27 1950-01-31 Philco Corp Echo-triggered radar system
US2457559A (en) * 1945-02-15 1948-12-28 Bell Telephone Labor Inc Repeater for pulse communication system
BE474884A (en) * 1945-03-08
US2580213A (en) * 1945-04-18 1951-12-25 Bess Leon Pulse discrimination circuit responsive to double sets of pulses
US2482544A (en) * 1945-05-02 1949-09-20 Us Sec War Pulse code operated electronic range indicator
BE472540A (en) * 1945-06-18
US2582251A (en) * 1945-08-03 1952-01-15 Conrad H Hoeppner Pulse width discriminator
US2534264A (en) * 1945-08-03 1950-12-19 Conrad H Hoeppner Pulse width discriminator
US2677760A (en) * 1945-09-17 1954-05-04 Us Navy Pulse width discriminator
US2710950A (en) * 1945-09-19 1955-06-14 Stanley R Rich Delayed lobe comparison
US2559905A (en) * 1945-09-29 1951-07-10 Raytheon Mfg Co Electric impulse handling system
US2653234A (en) * 1945-10-04 1953-09-22 Charles W Johnstone Radio identification system
US2744196A (en) * 1945-10-09 1956-05-01 Conrad H Hoeppner Pulse width discriminator
US2577827A (en) * 1945-10-30 1951-12-11 Charles B Tompkins Pulse recognition device
US2617883A (en) * 1945-12-10 1952-11-11 Hal O Anger Circuit for increasing duration of pulses
US2929925A (en) * 1946-01-03 1960-03-22 Marcus D O'day Transponder system responsive to simultaneous identification and object locating signals
NL74142C (en) * 1946-01-15
US2543431A (en) * 1946-01-17 1951-02-27 Bess Leon Video amplifier circuit
US2605358A (en) * 1946-01-30 1952-07-29 Leland K Neher Low pass filter
US2536801A (en) * 1946-03-01 1951-01-02 Philco Corp Superregenerative receiver
NL90577C (en) * 1946-07-16
US2677763A (en) * 1946-07-27 1954-05-04 Philco Corp Pulse length discriminator
BE475554A (en) * 1946-08-23
US2466705A (en) * 1946-10-30 1949-04-12 Conrad H Hoeppner Detector system
US2503909A (en) * 1947-01-16 1950-04-11 Gen Electric Pulse amplifier
US2540560A (en) * 1947-04-11 1951-02-06 Hazeltine Research Inc Pulse signal time delay arrangement
BE482299A (en) * 1947-07-11
US2551250A (en) * 1947-11-12 1951-05-01 Gen Electric Pulse discriminator
US2903579A (en) * 1948-09-03 1959-09-08 Ibm Pulse delay apparatus
US2641698A (en) * 1948-11-13 1953-06-09 Gloess Paul Francois Marie Delay line decoder
US2680153A (en) * 1949-01-14 1954-06-01 Philco Corp Multichannel communication system
US2665378A (en) * 1949-03-26 1954-01-05 Hazeltine Research Inc Pulse-signal translating system
US2539374A (en) * 1949-07-23 1951-01-23 Gen Precision Lab Inc Vertical synchronization pulse separation circuit
US2931982A (en) * 1950-10-26 1960-04-05 Philips Corp Device for converting pn-cycles pulse code modulation into pulse position modulation
BE511214A (en) * 1950-10-27
DE1024273B (en) * 1951-06-26 1958-02-13 Nat Res Dev Method and device for determining the number of pulses which each correspond to one of several predetermined amplitude values
DE1057649B (en) * 1951-11-07 1959-05-21 Ericsson Telefon Ab L M Arrangement for generating length-modulated pulses
US2874279A (en) * 1952-08-06 1959-02-17 Itt Pulse selector circuit
US2885590A (en) * 1953-07-20 1959-05-05 Engineering Lab Inc Correlation system
US2866091A (en) * 1953-12-29 1958-12-23 Gen Electric Pulse processing system
US2824224A (en) * 1954-04-14 1958-02-18 Du Mont Allen B Lab Inc Television synchronizing circuit
US2910581A (en) * 1954-06-09 1959-10-27 Hazeltine Research Inc Phase detector
DE1027239B (en) * 1954-12-02 1958-04-03 Siemens Ag Process for generating very narrow rectangular pulses
US2842662A (en) * 1955-02-03 1958-07-08 Burroughs Corp Flip-flop circuit
US2841708A (en) * 1955-03-03 1958-07-01 Ibm Electronic logical circuits
US2898459A (en) * 1955-04-12 1959-08-04 Hazeltine Research Inc Phase detector
BE546952A (en) * 1955-04-12
US2951989A (en) * 1957-07-05 1960-09-06 Itt Detector circuit
US2885551A (en) * 1955-11-30 1959-05-05 Ibm Variable voltage level discriminator varying with the input voltage level
US2912579A (en) * 1955-12-09 1959-11-10 Itt Pulse width and repetition rate discriminator
US2851598A (en) * 1955-12-15 1958-09-09 North American Aviation Inc Circuit for gating in response to time duration
US2985715A (en) * 1956-10-04 1961-05-23 Hughes Aircraft Co Gating system
US3036272A (en) * 1957-06-27 1962-05-22 Rca Corp Pulse width discriminator
US2943262A (en) * 1957-10-28 1960-06-28 Jersey Prod Res Co Pulse analyzer
NL238653A (en) * 1958-04-28
NL127978C (en) * 1962-10-01
US3558916A (en) * 1968-02-28 1971-01-26 Tektronix Inc Responsive to input signals of a selectable duration

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1824635A (en) * 1930-10-21 1931-09-22 Gen Electric Synchronization in television and facsimile transmission system
GB491728A (en) * 1937-03-10 1938-09-08 Eric Lawrence Casling White Improvements in or relating to circuit arrangements for separating electric signal pulses

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE757815C (en) * 1937-03-10 1952-01-31 Electric & Musical Ind Ltd Hay Circuit arrangement for the separation of electrical pulses of longer duration from other pulses of shorter duration
US2502454A (en) * 1944-12-27 1950-04-04 Standard Telephones Cables Ltd Method and means for improving signal to noise ratio of selected pulse signals
DE938554C (en) * 1945-10-30 1956-02-02 Int Standard Electric Corp Multi-channel messaging system for the transmission of time-modulated signal pulses
US2512699A (en) * 1945-12-06 1950-06-27 Us Sec War Radio pulse receiver interference eliminator

Also Published As

Publication number Publication date
DE757815C (en) 1952-01-31
GB515210A (en) 1939-11-29
DE764493C (en) 1951-12-06
US2227052A (en) 1940-12-31
FR835087A (en) 1938-12-12
US2211942A (en) 1940-08-20

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