GB596078A - Improvements in or relating to arrangements for demodulating time modulated electricpulses - Google Patents

Improvements in or relating to arrangements for demodulating time modulated electricpulses

Info

Publication number
GB596078A
GB596078A GB18343/45A GB1834345A GB596078A GB 596078 A GB596078 A GB 596078A GB 18343/45 A GB18343/45 A GB 18343/45A GB 1834345 A GB1834345 A GB 1834345A GB 596078 A GB596078 A GB 596078A
Authority
GB
United Kingdom
Prior art keywords
pulses
waves
resistance
voltage
electricpulses
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
GB18343/45A
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 GB596078A publication Critical patent/GB596078A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K9/00—Demodulating pulses which have been modulated with a continuously-variable signal
    • H03K9/04—Demodulating pulses which have been modulated with a continuously-variable signal of position-modulated pulses

Landscapes

  • Amplifiers (AREA)
  • Networks Using Active Elements (AREA)
  • Amplitude Modulation (AREA)

Abstract

596,078. Pulse modulation. STANDARD TELEPHONES & CABLES, Ltd. July 17, 1945, No. 18343. Convention date, Sept. 18, 1942. [Class 40 (v)] For demodulating time-modulated pulses, means are provided for controlling, in accordance with the time interval between the pulses, the amplitude of voltage waves having recurring inclined portions, for example saw-tooth waves, and for clipping the waves at a predetermined level. The condenser 26 is charged through resistances 25, 34 in the intervals between pulses and discharged, when a pulse occurs, through valve 20, to the biassed-back grid of which the positive-going pulses are applied to render it conducting. The peaks of the output voltage across resistance 34 are clipped by diode 30 and appear across resistance 33, whence they are fed through a low-pass filter to the signal reproducer. The clipping level, which may be set by the adjustable resistance 34, may be the peak voltage of the output wave from 34 in the absence of modulation on the pulses. Specifications 509,820, 511,222 and 521,139 are referred to.
GB18343/45A 1942-09-18 1945-07-17 Improvements in or relating to arrangements for demodulating time modulated electricpulses Expired GB596078A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US458854A US2416305A (en) 1942-09-18 1942-09-18 Radio receiver

Publications (1)

Publication Number Publication Date
GB596078A true GB596078A (en) 1947-12-29

Family

ID=23822357

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18343/45A Expired GB596078A (en) 1942-09-18 1945-07-17 Improvements in or relating to arrangements for demodulating time modulated electricpulses

Country Status (4)

Country Link
US (1) US2416305A (en)
ES (1) ES181975A1 (en)
FR (1) FR952461A (en)
GB (1) GB596078A (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2499534A (en) * 1950-03-07 A sorber
US2662174A (en) * 1942-11-25 1953-12-08 Hartford Nat Bank & Trust Co Amplitude discriminating noise reducing means
US2522110A (en) * 1944-12-21 1950-09-12 Philco Corp Pulse detector system
FR957726A (en) * 1945-05-08 1950-02-24
US2563256A (en) * 1945-07-19 1951-08-07 Pye Ltd Receiver for time modulated electric pulses
BE469280A (en) * 1945-09-28
NL84018C (en) * 1945-10-01
US2480582A (en) * 1945-10-18 1949-08-30 Rca Corp Synchronizing pulse gating system
US2564687A (en) * 1946-03-26 1951-08-21 John H Guenther Pulse time modulation
US2740839A (en) * 1946-04-16 1956-04-03 Int Standard Electric Corp Multiplex electric communication system
US2499844A (en) * 1947-01-16 1950-03-07 Philco Corp Receiver for pulse-position-modulation systems
US2530081A (en) * 1947-03-28 1950-11-14 Karl F Ross Receiver for wave-length modulated electric waves
NL139670B (en) * 1947-04-03 Fliess Hermann & Co WRAPPING CASSETTE FOR WINDING WIRE.
US2557038A (en) * 1947-10-20 1951-06-12 Karl F Ross Phase discriminator
US2629775A (en) * 1950-06-17 1953-02-24 Rca Corp Signal converter
US3366894A (en) * 1964-10-09 1968-01-30 Nasa Usa Variable duration pulse integrator

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1655543A (en) * 1924-04-18 1928-01-10 Western Electric Co Transmission system
US2061734A (en) * 1934-09-29 1936-11-24 Rca Corp Signaling system
NL88393C (en) * 1937-06-18
US2218642A (en) * 1938-03-17 1940-10-22 Rca Corp Frequency meter
US2227596A (en) * 1938-03-31 1941-01-07 Rca Corp Signaling system

Also Published As

Publication number Publication date
ES181975A1 (en) 1948-03-01
US2416305A (en) 1947-02-25
FR952461A (en) 1949-11-17

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