DE821046C - Schaltung zur Mischung bei Kurzwellen - Google Patents

Schaltung zur Mischung bei Kurzwellen

Info

Publication number
DE821046C
DE821046C DEP23512D DEP0023512D DE821046C DE 821046 C DE821046 C DE 821046C DE P23512 D DEP23512 D DE P23512D DE P0023512 D DEP0023512 D DE P0023512D DE 821046 C DE821046 C DE 821046C
Authority
DE
Germany
Prior art keywords
circuit
frequency
carrier wave
capacitor
signal
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
DEP23512D
Other languages
German (de)
English (en)
Inventor
Cornelis Swier Knol
Aldert Van Der Ziel
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.)
Filing date
Publication date
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of DE821046C publication Critical patent/DE821046C/de
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Inorganic Insulating Materials (AREA)
DEP23512D 1946-05-28 1948-12-04 Schaltung zur Mischung bei Kurzwellen Expired DE821046C (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL634403X 1946-05-28

Publications (1)

Publication Number Publication Date
DE821046C true DE821046C (de) 1951-11-15

Family

ID=19788839

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP23512D Expired DE821046C (de) 1946-05-28 1948-12-04 Schaltung zur Mischung bei Kurzwellen

Country Status (5)

Country Link
US (1) US2719223A (instruction)
BE (1) BE473522A (instruction)
DE (1) DE821046C (instruction)
FR (1) FR947241A (instruction)
GB (1) GB634403A (instruction)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2849628A (en) * 1953-06-12 1958-08-26 Hans E Hollmann Variable frequency crystal device
US2859409A (en) * 1953-09-14 1958-11-04 Cleveland Patents Inc Signal generator
US3018443A (en) * 1958-05-20 1962-01-23 Rca Corp Parameric amplifier with lower frequency pumping
DE1121661B (de) * 1958-12-05 1962-01-11 Siemens Ag Anordnung zur Verstaerkung kurzer und sehr kurzer elektromagnetischer Wellen
US3111629A (en) * 1959-01-07 1963-11-19 Microwave Ass Reactance or parametric amplifier
US3001143A (en) * 1959-02-04 1961-09-19 Avco Mfg Corp Low noise radio frequency amplifier
US3147440A (en) * 1959-02-17 1964-09-01 Singer Inc H R B Cross-modulation detector means tuned to local oscillator frequency
US3012204A (en) * 1959-04-15 1961-12-05 Bell Telephone Labor Inc Elastic wave parametric amplifier
US3048783A (en) * 1959-04-28 1962-08-07 Itt Signal receiving system
US2951207A (en) * 1959-05-14 1960-08-30 Hughes Aircraft Co Parametric amplifier
US3046410A (en) * 1959-05-14 1962-07-24 Space Technology Lab Inc Frequency divider systems
US3040267A (en) * 1959-06-22 1962-06-19 Bell Telephone Labor Inc Negative resistance amplifier circuits
US3109934A (en) * 1959-06-30 1963-11-05 Hughes Aircraft Co Bi-stable circuit
US3063011A (en) * 1959-07-06 1962-11-06 Nat Company Inc Wide dynamic range communications receiver
US3121844A (en) * 1959-08-04 1964-02-18 Itt Amplifier control system
US3099801A (en) * 1959-11-09 1963-07-30 Gen Dynamics Corp Circuitry utilizing parametrically excited harmonic oscillators
US3070751A (en) * 1960-01-25 1962-12-25 Jack R Vigiano Parametric amplifiers with increased gain bandwidth product
US3365668A (en) * 1960-06-08 1968-01-23 Magnavox Co Superregenerative parametric amplifier
US3195062A (en) * 1961-01-19 1965-07-13 Rca Corp Agc parametric amplifier using negative bias and detuned circuits
NL275870A (instruction) * 1961-03-17
US3109937A (en) * 1962-02-05 1963-11-05 Boxer Victor Diode parametric amplifier upconverter
FR1344349A (fr) * 1962-10-02 1963-11-29 Csf Antenne rideau à balayage électronique
US3435379A (en) * 1965-12-09 1969-03-25 Us Army Solid-state magnetoelectric modulator and switch

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1712993A (en) * 1916-08-14 1929-05-14 Western Electric Co Signaling system
FR614412A (fr) * 1925-08-21 1926-12-14 Radio Electr Soc Fr Perfectionnements aux récepteurs à interférence
GB460408A (en) * 1935-08-19 1937-01-27 Philips Nv Improvements in or relating to superheterodyne radio receivers
US2243921A (en) * 1938-11-12 1941-06-03 Rca Corp Variable capacity device and circuit
US2253853A (en) * 1939-07-09 1941-08-26 Haantjes Johan Superheterodyne receiving circuit
NL57631C (instruction) * 1939-09-08
NL62594C (instruction) * 1940-02-24
NL62481C (instruction) * 1941-08-08
US2399082A (en) * 1943-06-11 1946-04-23 Titanium Alloy Mfg Co High dielectric material and method of making same
US2387472A (en) * 1943-08-17 1945-10-23 Rca Corp Square-law detector
US2461307A (en) * 1944-11-13 1949-02-08 Rauland Corp Modulating system
FR956108A (instruction) * 1946-12-18 1950-01-26

Also Published As

Publication number Publication date
US2719223A (en) 1955-09-27
BE473522A (instruction)
FR947241A (fr) 1949-06-27
GB634403A (en) 1950-03-22

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