GB360891A - Electrical frequency control systems - Google Patents

Electrical frequency control systems

Info

Publication number
GB360891A
GB360891A GB23216/30A GB2321630A GB360891A GB 360891 A GB360891 A GB 360891A GB 23216/30 A GB23216/30 A GB 23216/30A GB 2321630 A GB2321630 A GB 2321630A GB 360891 A GB360891 A GB 360891A
Authority
GB
United Kingdom
Prior art keywords
frequency
carrier
grid
valve
received
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
GB23216/30A
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.)
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
Priority to NL35814D priority Critical patent/NL35814C/xx
Application filed by Individual filed Critical Individual
Priority to GB23216/30A priority patent/GB360891A/en
Priority to US552179A priority patent/US1988609A/en
Priority to FR722059D priority patent/FR722059A/fr
Priority to DEI42173D priority patent/DE603793C/de
Publication of GB360891A publication Critical patent/GB360891A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/02—Automatic control of frequency or phase; Synchronisation using a frequency discriminator comprising a passive frequency-determining element

Landscapes

  • Noise Elimination (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
GB23216/30A 1930-08-01 1930-08-01 Electrical frequency control systems Expired GB360891A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL35814D NL35814C (en(2012)) 1930-08-01
GB23216/30A GB360891A (en) 1930-08-01 1930-08-01 Electrical frequency control systems
US552179A US1988609A (en) 1930-08-01 1931-07-21 Synchronizing system
FR722059D FR722059A (fr) 1930-08-01 1931-07-22 Dispositifs du type non mécaniques pour le contrôle de la réactance, applicables particulièrement aux systèmes de signalisation à haute fréquence
DEI42173D DE603793C (de) 1930-08-01 1931-07-26 Schaltungsanordnung zur selbsttaetigen Aufrechterhaltung eines bestimmten Verhaeltnisses zwischen den Frequenzen mehrerer Oszillatoren

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB23216/30A GB360891A (en) 1930-08-01 1930-08-01 Electrical frequency control systems

Publications (1)

Publication Number Publication Date
GB360891A true GB360891A (en) 1931-11-02

Family

ID=10192033

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23216/30A Expired GB360891A (en) 1930-08-01 1930-08-01 Electrical frequency control systems

Country Status (5)

Country Link
US (1) US1988609A (en(2012))
DE (1) DE603793C (en(2012))
FR (1) FR722059A (en(2012))
GB (1) GB360891A (en(2012))
NL (1) NL35814C (en(2012))

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102707106A (zh) * 2012-05-18 2012-10-03 宁波伟吉电力科技有限公司 电力次谐波数字信号源

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2436946A (en) * 1941-04-10 1948-03-02 Virgil A Hamilton Capacity-type phonograph pickup
US2425657A (en) * 1941-04-17 1947-08-12 Rca Corp Short-wave apparatus
US2438425A (en) * 1942-11-26 1948-03-23 Rca Corp Computing device
US2513428A (en) * 1947-10-20 1950-07-04 Philco Corp Superregenerator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102707106A (zh) * 2012-05-18 2012-10-03 宁波伟吉电力科技有限公司 电力次谐波数字信号源
CN102707106B (zh) * 2012-05-18 2014-08-20 宁波伟吉电力科技有限公司 电力次谐波数字信号源

Also Published As

Publication number Publication date
FR722059A (fr) 1932-03-11
DE603793C (de) 1934-10-11
NL35814C (en(2012))
US1988609A (en) 1935-01-22

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