GB524671A - Improvements in or relating to electric signalling systems - Google Patents

Improvements in or relating to electric signalling systems

Info

Publication number
GB524671A
GB524671A GB4013/39A GB401339A GB524671A GB 524671 A GB524671 A GB 524671A GB 4013/39 A GB4013/39 A GB 4013/39A GB 401339 A GB401339 A GB 401339A GB 524671 A GB524671 A GB 524671A
Authority
GB
United Kingdom
Prior art keywords
pulses
pulse
short
amplitude
wave
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
GB4013/39A
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.)
Kolster Brandes Ltd
Original Assignee
Kolster Brandes Ltd
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 Kolster Brandes Ltd filed Critical Kolster Brandes Ltd
Publication of GB524671A publication Critical patent/GB524671A/en
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
    • H03K7/08—Duration or width modulation ; Duty cycle modulation

Landscapes

  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
GB4013/39A 1939-02-07 1939-02-07 Improvements in or relating to electric signalling systems Expired GB524671A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB241788X 1939-02-07

Publications (1)

Publication Number Publication Date
GB524671A true GB524671A (en) 1940-08-12

Family

ID=10207655

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4013/39A Expired GB524671A (en) 1939-02-07 1939-02-07 Improvements in or relating to electric signalling systems

Country Status (5)

Country Link
US (1) US2298922A (en:Method)
CH (1) CH241788A (en:Method)
FR (1) FR862978A (en:Method)
GB (1) GB524671A (en:Method)
NL (1) NL57988C (en:Method)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2419292A (en) * 1947-04-22 System fob transmitting two
FR962120A (en:Method) * 1943-04-07 1950-06-02
US2443958A (en) * 1944-09-23 1948-06-22 Rca Corp Modulation
US2545123A (en) * 1946-05-20 1951-03-13 Rca Corp Computing device
US2473691A (en) * 1947-08-05 1949-06-21 Bell Telephone Labor Inc Stabilization of cathode beam tubes

Also Published As

Publication number Publication date
NL57988C (en:Method)
CH241788A (fr) 1946-03-31
US2298922A (en) 1942-10-13
FR862978A (fr) 1941-03-20

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