GB630098A - Improvements in or relating to signalling systems - Google Patents

Improvements in or relating to signalling systems

Info

Publication number
GB630098A
GB630098A GB15024/47A GB1502447A GB630098A GB 630098 A GB630098 A GB 630098A GB 15024/47 A GB15024/47 A GB 15024/47A GB 1502447 A GB1502447 A GB 1502447A GB 630098 A GB630098 A GB 630098A
Authority
GB
United Kingdom
Prior art keywords
pulse
pulses
condenser
cycle
current
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
GB15024/47A
Other languages
English (en)
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of GB630098A publication Critical patent/GB630098A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/04—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation
    • H04B14/046—Systems or methods for reducing noise or bandwidth

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Selective Calling Equipment (AREA)
  • Electrotherapy Devices (AREA)
GB15024/47A 1945-07-09 1947-06-06 Improvements in or relating to signalling systems Expired GB630098A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US603934A US2451044A (en) 1945-07-09 1945-07-09 Communication system employing pulse code modulation

Publications (1)

Publication Number Publication Date
GB630098A true GB630098A (en) 1949-10-05

Family

ID=24417504

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15024/47A Expired GB630098A (en) 1945-07-09 1947-06-06 Improvements in or relating to signalling systems

Country Status (3)

Country Link
US (1) US2451044A (fr)
FR (1) FR947270A (fr)
GB (1) GB630098A (fr)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2801281A (en) * 1946-02-21 1957-07-30 Bell Telephone Labor Inc Communication system employing pulse code modulation
US2679043A (en) * 1946-05-21 1954-05-18 Us Sec War Beacon receiver
USRE23686E (en) * 1947-02-12 1953-07-14 Communication system
US2796602A (en) * 1947-08-08 1957-06-18 Padevco Inc Aircraft identification and location system
US2651716A (en) * 1947-11-08 1953-09-08 Int Standard Electric Corp Pulse code modulation demodulator
GB644932A (en) * 1948-01-16 1950-10-18 Standard Telephones Cables Ltd Improvements in or relating to signal compression and expansion arrangements in electric communication systems
GB646050A (en) * 1948-02-20 1950-11-15 Standard Telephones Cables Ltd Improvements in or relating to electric pulse code modulation systems of communication
GB664401A (en) * 1948-03-25 1952-01-09 Nat Res Dev Improvements in thermionic valve circuits
BE489663A (fr) * 1948-07-21
US2592308A (en) * 1948-09-01 1952-04-08 Bell Telephone Labor Inc Nonlinear pulse code modulation system
US2603714A (en) * 1948-09-01 1952-07-15 Bell Telephone Labor Inc Percentage time division multiplex for pulse code modulation
BE492937A (fr) * 1948-12-24
US2645712A (en) * 1949-12-01 1953-07-14 Rca Corp Reading circuit for storage tubes
US2678254A (en) * 1949-12-16 1954-05-11 Schenck James Coding and recording system
US2712184A (en) * 1949-12-31 1955-07-05 Askania Regulator Co Electrical analogue training device
US2678425A (en) * 1950-02-21 1954-05-11 Raytheon Mfg Co Analogue computer
IT500026A (fr) * 1950-05-17
BE505568A (fr) * 1950-09-01
US2754503A (en) * 1951-12-21 1956-07-10 Little Inc A Digital reading apparatus
US2762038A (en) * 1952-06-11 1956-09-04 Underwood Corp Voltage measuring device
FR1084172A (fr) * 1953-02-19 1955-01-17 Electronique & Automatisme Sa Système codeur de tension électrique
US2865564A (en) * 1953-04-02 1958-12-23 Hughes Aircraft Co High-speed electronic data conversion system
US2946848A (en) * 1954-03-08 1960-07-26 Edgar W Van Winkle Facsimile recorder system
US2974282A (en) * 1954-06-18 1961-03-07 Ericsson Telefon Ab L M Device for representing a voltage in the shape of a code
US2840806A (en) * 1955-10-12 1958-06-24 Hughes Aircraft Co Voltage state to digital converter
USRE25911E (en) * 1958-09-11 1965-11-23 Vaughan multiplex signaling system
DE2315987C3 (de) * 1973-03-30 1978-07-13 Siemens Ag, 1000 Berlin Und 8000 Muenchen Digital-Analog-Umsetzer, insbesondere für einen nach dem Iteratiwerfahren arbeitenden Codierer

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB470495A (en) * 1935-11-14 1937-08-16 Alan Dower Blumlein Improvements in or relating to multiplex signalling systems
US2262838A (en) * 1937-11-19 1941-11-18 Int Standard Electric Corp Electric signaling system
BE437148A (fr) * 1938-10-03
US2313209A (en) * 1938-11-08 1943-03-09 Valensi Georges Communication system
US2326515A (en) * 1940-08-03 1943-08-10 Gen Electric Television system
US2300999A (en) * 1940-10-30 1942-11-03 Westinghouse Electric & Mfg Co Electromagnetic inspection system
US2405231A (en) * 1942-03-31 1946-08-06 Bell Telephone Labor Inc Aircraft blind landing system
US2418116A (en) * 1943-12-20 1947-04-01 Standard Telephones Cables Ltd Multiplex synchronizing system

Also Published As

Publication number Publication date
FR947270A (fr) 1949-06-28
US2451044A (en) 1948-10-12

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