GB580738A - Improvements in or relating to signal transmission systems employing phase or frequency modulation - Google Patents

Improvements in or relating to signal transmission systems employing phase or frequency modulation

Info

Publication number
GB580738A
GB580738A GB658943A GB658943A GB580738A GB 580738 A GB580738 A GB 580738A GB 658943 A GB658943 A GB 658943A GB 658943 A GB658943 A GB 658943A GB 580738 A GB580738 A GB 580738A
Authority
GB
United Kingdom
Prior art keywords
signal
pulses
frequency
amplifier
modulation
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
GB658943A
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.)
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
Priority to BE469241D priority Critical patent/BE469241A/xx
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB658943A priority patent/GB580738A/en
Priority to FR933084D priority patent/FR933084A/fr
Publication of GB580738A publication Critical patent/GB580738A/en
Priority to ES0176098A priority patent/ES176098A1/es
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K7/00—Modulating pulses with a continuously-variable modulating signal
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Amplitude Modulation (AREA)
GB658943A 1943-04-23 1943-04-23 Improvements in or relating to signal transmission systems employing phase or frequency modulation Expired GB580738A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BE469241D BE469241A (enrdf_load_stackoverflow) 1943-04-23
GB658943A GB580738A (en) 1943-04-23 1943-04-23 Improvements in or relating to signal transmission systems employing phase or frequency modulation
FR933084D FR933084A (fr) 1943-04-23 1946-08-29 Perfectionnements aux systèmes de transmission par impulsions électriques
ES0176098A ES176098A1 (es) 1943-04-23 1946-12-14 MEJORAS O EN RELATIVAS A SISTEMAS DE TRANSMISIoN DE IMPLUSOS ELÉCTRICOS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB658943A GB580738A (en) 1943-04-23 1943-04-23 Improvements in or relating to signal transmission systems employing phase or frequency modulation

Publications (1)

Publication Number Publication Date
GB580738A true GB580738A (en) 1946-09-18

Family

ID=9817238

Family Applications (1)

Application Number Title Priority Date Filing Date
GB658943A Expired GB580738A (en) 1943-04-23 1943-04-23 Improvements in or relating to signal transmission systems employing phase or frequency modulation

Country Status (4)

Country Link
BE (1) BE469241A (enrdf_load_stackoverflow)
ES (1) ES176098A1 (enrdf_load_stackoverflow)
FR (1) FR933084A (enrdf_load_stackoverflow)
GB (1) GB580738A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2867763A (en) * 1954-08-03 1959-01-06 Siemens Ag System for controlling or regulating an electric motor by pulses of variable pulsing ratio

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2867763A (en) * 1954-08-03 1959-01-06 Siemens Ag System for controlling or regulating an electric motor by pulses of variable pulsing ratio

Also Published As

Publication number Publication date
BE469241A (enrdf_load_stackoverflow)
FR933084A (fr) 1948-04-09
ES176098A1 (es) 1947-01-16

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