FR921902A - Improvements to circuit tuning systems - Google Patents

Improvements to circuit tuning systems

Info

Publication number
FR921902A
FR921902A FR921902DA FR921902A FR 921902 A FR921902 A FR 921902A FR 921902D A FR921902D A FR 921902DA FR 921902 A FR921902 A FR 921902A
Authority
FR
France
Prior art keywords
circuit tuning
tuning systems
systems
circuit
tuning
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
Other languages
French (fr)
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.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
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 RCA Corp, Radio Corporation of America filed Critical RCA Corp
Application granted granted Critical
Publication of FR921902A publication Critical patent/FR921902A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B19/00—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • H03J7/16—Automatic frequency control where the frequency control is accomplished by mechanical means, e.g. by a motor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L5/00—Automatic control of voltage, current, or power
    • H03L5/02—Automatic control of voltage, current, or power of power
FR921902D 1945-02-09 1946-02-08 Improvements to circuit tuning systems Expired FR921902A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US577042A US2469324A (en) 1945-02-09 1945-02-09 Circuit tuner

Publications (1)

Publication Number Publication Date
FR921902A true FR921902A (en) 1947-05-22

Family

ID=24307053

Family Applications (1)

Application Number Title Priority Date Filing Date
FR921902D Expired FR921902A (en) 1945-02-09 1946-02-08 Improvements to circuit tuning systems

Country Status (3)

Country Link
US (1) US2469324A (en)
FR (1) FR921902A (en)
GB (1) GB608265A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2995689A (en) * 1958-10-13 1961-08-08 Gulton Ind Inc Ultrasonic control circuit

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1450966A (en) * 1919-09-30 1923-04-10 American Telephone & Telegraph Synchronizing system
US1830837A (en) * 1929-04-18 1931-11-10 Wired Radio Inc Signaling apparatus
US1934400A (en) * 1931-09-30 1933-11-07 Bell Telephone Labor Inc Frequency control system
US2044749A (en) * 1932-12-10 1936-06-16 Rca Corp Phase rotation detector and frequency regulator
US2069633A (en) * 1935-10-25 1937-02-02 Gen Electric Frequency determining unit for piezoelectric crystal controlling oscillators
NL63645C (en) * 1940-02-29
USRE22620E (en) * 1940-04-03 1945-03-20 Automatic measuring op cross taiik
US2354827A (en) * 1941-05-23 1944-08-01 Rca Corp Frequency control
US2358454A (en) * 1942-04-29 1944-09-19 Rca Corp Automatic circuit tuning
US2379689A (en) * 1943-01-27 1945-07-03 Rca Corp Frequency control circuit
US2387544A (en) * 1943-08-27 1945-10-23 Rca Corp Frequency and phase comparison detection and control system

Also Published As

Publication number Publication date
US2469324A (en) 1949-05-03
GB608265A (en) 1948-09-13

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