FR973903A - High frequency oscillation generator assembly - Google Patents

High frequency oscillation generator assembly

Info

Publication number: FR973903A
Authority: FR; France
Prior art keywords: high frequency; frequency oscillation; generator assembly; oscillation generator; assembly
Prior art date: 1947-10-24
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

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.)

Koninklijke Philips NV

Original Assignee

Philips Gloeilampenfabrieken NV

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.)

1947-10-24

Filing date

1948-10-21

Publication date

1951-02-16

1948-10-21 Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV

1951-02-16 Application granted granted Critical

1951-02-16 Publication of FR973903A publication Critical patent/FR973903A/en

Status Expired legal-status Critical Current

Classifications

- 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
- H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
- 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
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
- H03B5/10—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being vacuum tube
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/10—Angle modulation by means of variable impedance
- H03C3/24—Angle modulation by means of variable impedance by means of a variable resistive element, e.g. tube

FR973903D 1947-10-24 1948-10-21 High frequency oscillation generator assembly Expired FR973903A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL135580		1947-10-24

Publications (1)

Publication Number	Publication Date
FR973903A true FR973903A (en)	1951-02-16

Family

ID=19750432

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR973903D Expired FR973903A (en)	1947-10-24	1948-10-21	High frequency oscillation generator assembly

Country Status (8)

Country	Link
US (1)	US2557188A (en)
BE (1)	BE485428A (en)
CH (1)	CH268708A (en)
DE (1)	DE809820C (en)
ES (1)	ES185661A1 (en)
FR (1)	FR973903A (en)
GB (1)	GB651945A (en)
NL (1)	NL70313C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1199596B (en) *	1961-03-03	1965-08-26	Riegg & Co G M B H	Vibration generator for electronic musical instruments
DE1283927B (en) *	1966-09-15	1968-11-28	Standard Elektrik Lorenz Ag	Frequency modulable oscillator

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2250526A (en) *	1937-03-02	1941-07-29	Telefunken Gmbh	Oscillator control circuit
US2361731A (en) *	1940-12-12	1944-10-31	Patents Res Corp	Reactance system
US2321354A (en) *	1941-03-25	1943-06-08	Radio Patents Corp	Electrical apparatus
US2305262A (en) *	1941-06-30	1942-12-15	Edward H Lange	Method and means for normalizing thermionic oscillators
US2378245A (en) *	1942-03-17	1945-06-12	Radio Patents Corp	Variable frequency oscillator

0
- BE BE485428D patent/BE485428A/xx unknown
- NL NL70313D patent/NL70313C/xx active
1948
- 1948-10-19 US US55262A patent/US2557188A/en not_active Expired - Lifetime
- 1948-10-21 FR FR973903D patent/FR973903A/en not_active Expired
- 1948-10-21 ES ES0185661A patent/ES185661A1/en not_active Expired
- 1948-10-21 GB GB27356/48A patent/GB651945A/en not_active Expired
- 1948-10-22 CH CH268708D patent/CH268708A/en unknown
- 1948-12-24 DE DEP26487D patent/DE809820C/en not_active Expired

Also Published As

Publication number	Publication date
ES185661A1 (en)	1949-04-01
BE485428A (en)
NL70313C (en)
CH268708A (en)	1950-05-31
DE809820C (en)	1951-08-02
GB651945A (en)	1951-04-11
US2557188A (en)	1951-06-19

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