CH220606A - Radio receiver with spread spectrum for a number of relatively narrow frequency bands. - Google Patents

Radio receiver with spread spectrum for a number of relatively narrow frequency bands.

Info

Publication number
CH220606A
CH220606A CH220606DA CH220606A CH 220606 A CH220606 A CH 220606A CH 220606D A CH220606D A CH 220606DA CH 220606 A CH220606 A CH 220606A
Authority
CH
Switzerland
Prior art keywords
frequency bands
spread spectrum
radio receiver
relatively narrow
narrow frequency
Prior art date
Application number
Other languages
German (de)
Inventor
Gloeilampenfabrieken N Philips
Original Assignee
Philips 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 Nv filed Critical Philips Nv
Publication of CH220606A publication Critical patent/CH220606A/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/02—Details
    • H03J3/10—Circuit arrangements for fine tuning, e.g. bandspreading
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
    • H02P9/32—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using magnetic devices with controllable degree of saturation

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
CH220606D 1940-08-28 1941-08-26 Radio receiver with spread spectrum for a number of relatively narrow frequency bands. CH220606A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL220606X 1940-08-28

Publications (1)

Publication Number Publication Date
CH220606A true CH220606A (en) 1942-04-15

Family

ID=19779330

Family Applications (1)

Application Number Title Priority Date Filing Date
CH220606D CH220606A (en) 1940-08-28 1941-08-26 Radio receiver with spread spectrum for a number of relatively narrow frequency bands.

Country Status (4)

Country Link
US (1) US2434299A (en)
BE (2) BE442583A (en)
CH (1) CH220606A (en)
FR (1) FR876331A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE947376C (en) * 1952-03-07 1956-08-16 Blaupunkt Werke G M B H Zweign Combined television and FM radio receiver with inductive tuning
DE973181C (en) * 1944-06-27 1959-12-17 Georg Von Dipl-Ing Schaub Tuning arrangement for short shafts

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2470426A (en) * 1942-10-28 1949-05-17 Zenith Radio Corp Spread band tuning circuit
BE453138A (en) * 1942-11-12
US2525053A (en) * 1945-08-01 1950-10-10 Rca Corp Multirange oscillator circuits
US2597142A (en) * 1945-12-20 1952-05-20 Cossor Ltd A C Radio receiver circuits
US2586576A (en) * 1947-06-14 1952-02-19 Hartford Nat Bank & Trust Co Wireless receiver tunable to a number of wave length ranges
US2483183A (en) * 1947-06-25 1949-09-27 Avco Mfg Corp Oscillator circuits
US2650298A (en) * 1951-03-29 1953-08-25 Standard Coil Prod Co Inc Television booster circuits
NL173058B (en) * 1952-10-10 Sir Soc Italiana Resine Spa PROCESS FOR STABILIZING POLYACETALS AND SHAPED PRODUCTS, MANUFACTURED USING THE POLYACETALS STABILIZED THEREFORE.
US3389346A (en) * 1964-07-20 1968-06-18 James E. Webb Compensating bandwidth switching transients in an amplifier circuit

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1658718A (en) * 1925-11-05 1928-02-07 Hardcastle Harry Tuned circuits of wireless apparatus
US2137318A (en) * 1931-05-28 1938-11-22 Hazeltine Corp Multiband tunable system
US2129026A (en) * 1933-03-09 1938-09-06 Rca Corp Tuning range adjustment device
US2062379A (en) * 1934-11-30 1936-12-01 Glen S Patents And Holdings In Radio receiver
US2061416A (en) * 1935-07-16 1936-11-17 Albert F Blume Radio system
NL64971C (en) * 1938-10-13
US2309014A (en) * 1941-08-29 1943-01-19 Gen Electric Multiband tuning system
GB551064A (en) * 1941-12-18 1943-02-05 Philips Nv Improvements in or relating to radio receivers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE973181C (en) * 1944-06-27 1959-12-17 Georg Von Dipl-Ing Schaub Tuning arrangement for short shafts
DE947376C (en) * 1952-03-07 1956-08-16 Blaupunkt Werke G M B H Zweign Combined television and FM radio receiver with inductive tuning

Also Published As

Publication number Publication date
BE442583A (en)
US2434299A (en) 1948-01-13
FR876331A (en) 1942-11-03
BE551064A (en)

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