FR939357A - Improvements to electric power amplifiers - Google Patents

Improvements to electric power amplifiers

Info

Publication number
FR939357A
FR939357A FR939357DA FR939357A FR 939357 A FR939357 A FR 939357A FR 939357D A FR939357D A FR 939357DA FR 939357 A FR939357 A FR 939357A
Authority
FR
France
Prior art keywords
electric power
power amplifiers
amplifiers
electric
power
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)
Inventor
Maurice Moise Levy
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR939357A publication Critical patent/FR939357A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/28—Details of pulse systems
    • G01S7/285—Receivers
    • G01S7/292—Extracting wanted echo-signals
    • G01S7/2921—Extracting wanted echo-signals based on data belonging to one radar period
    • G01S7/2922—Extracting wanted echo-signals based on data belonging to one radar period by using a controlled threshold
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/26—Modifications of amplifiers to reduce influence of noise generated by amplifying elements
    • H03F1/28—Modifications of amplifiers to reduce influence of noise generated by amplifying elements in discharge-tube amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/42—Modifications of amplifiers to extend the bandwidth
    • H03F1/48—Modifications of amplifiers to extend the bandwidth of aperiodic amplifiers
    • H03F1/50—Modifications of amplifiers to extend the bandwidth of aperiodic amplifiers with tubes only
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/189—High frequency amplifiers, e.g. radio frequency amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/01—Shaping pulses
    • H03K5/04—Shaping pulses by increasing duration; by decreasing duration
    • H03K5/06—Shaping pulses by increasing duration; by decreasing duration by the use of delay lines or other analogue delay elements
    • H03K5/065—Shaping pulses by increasing duration; by decreasing duration by the use of delay lines or other analogue delay elements using dispersive delay lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/04—Control of transmission; Equalising
    • H04B3/06—Control of transmission; Equalising by the transmitted signal
    • H04B3/08—Control of transmission; Equalising by the transmitted signal in negative-feedback path of line amplifier
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S84/00—Music
    • Y10S84/10—Feedback
FR939357D 1941-06-06 1946-09-26 Improvements to electric power amplifiers Expired FR939357A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB272951X 1941-06-06

Publications (1)

Publication Number Publication Date
FR939357A true FR939357A (en) 1948-11-12

Family

ID=10257249

Family Applications (1)

Application Number Title Priority Date Filing Date
FR939357D Expired FR939357A (en) 1941-06-06 1946-09-26 Improvements to electric power amplifiers

Country Status (5)

Country Link
US (1) US2412995A (en)
BE (1) BE476621A (en)
CH (1) CH272951A (en)
FR (1) FR939357A (en)
GB (1) GB581683A (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2502454A (en) * 1944-12-27 1950-04-04 Standard Telephones Cables Ltd Method and means for improving signal to noise ratio of selected pulse signals
CH258962A (en) * 1945-04-30 1948-12-31 Standard Telephone & Radio Sa Device for transmitting electric waves.
FR957766A (en) * 1945-06-02 1950-02-25
US2590405A (en) * 1946-08-13 1952-03-25 Rca Corp Signal to noise ratio of radar systems
US2668238A (en) * 1946-08-20 1954-02-02 Frederick W Frink Wide-band phase shifting means
NL80449C (en) * 1948-01-17
US2752433A (en) * 1948-06-30 1956-06-26 Emi Ltd Negative feedback amplifiers
US2629818A (en) * 1949-03-17 1953-02-24 Int Standard Electric Corp High selectivity receiver
US2617885A (en) * 1950-07-11 1952-11-11 Bell Telephone Labor Inc Frequency changing regenerative pulse repeater
US2619543A (en) * 1950-07-11 1952-11-25 Bell Telephone Labor Inc Frequency changing pulse repeater employing phase modulation
US2627574A (en) * 1950-07-11 1953-02-03 Bell Telephone Labor Inc Radio repeater having a pulse regenerator
US2632064A (en) * 1950-09-20 1953-03-17 Bendix Aviat Corp Pulse amplifier
FR1108134A (en) * 1954-05-28 1956-01-09 Csf Method and device for improving the transmission of radio signals in the presence of noise
US3031909A (en) * 1955-09-28 1962-05-01 White James Paul Apparatus for tone quality control

Also Published As

Publication number Publication date
BE476621A (en)
CH272951A (en) 1951-01-15
GB581683A (en) 1946-10-22
US2412995A (en) 1946-12-24

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