DE914865C - UEberlagerungsempfangsschaltung - Google Patents

UEberlagerungsempfangsschaltung

Info

Publication number
DE914865C
DE914865C DEN2474D DEN0002474D DE914865C DE 914865 C DE914865 C DE 914865C DE N2474 D DEN2474 D DE N2474D DE N0002474 D DEN0002474 D DE N0002474D DE 914865 C DE914865 C DE 914865C
Authority
DE
Germany
Prior art keywords
intermediate frequency
circuit
shortwave
receiving
signals
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
DEN2474D
Other languages
German (de)
English (en)
Inventor
Johan Hendrik Van Wageningen
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 DE914865C publication Critical patent/DE914865C/de
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/24—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
    • H03J5/242—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D5/00—Circuits for demodulating amplitude-modulated or angle-modulated oscillations at will
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/26—Circuits for superheterodyne receivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Superheterodyne Receivers (AREA)
DEN2474D 1943-04-21 1944-04-18 UEberlagerungsempfangsschaltung Expired DE914865C (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL110970 1943-04-21

Publications (1)

Publication Number Publication Date
DE914865C true DE914865C (de) 1954-07-12

Family

ID=19750350

Family Applications (1)

Application Number Title Priority Date Filing Date
DEN2474D Expired DE914865C (de) 1943-04-21 1944-04-18 UEberlagerungsempfangsschaltung

Country Status (7)

Country Link
US (1) US2596624A (en:Method)
BE (1) BE455392A (en:Method)
CH (1) CH241790A (en:Method)
DE (1) DE914865C (en:Method)
FR (1) FR903551A (en:Method)
GB (1) GB616846A (en:Method)
NL (1) NL65112C (en:Method)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2725469A (en) * 1951-09-19 1955-11-29 Hartford Nat Bank & Trust Co Radio receiving set for the reception of two frequency ranges

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH194604A (de) * 1936-03-21 1937-12-15 Schaub Georg Von Uberlagerungsempfänger.
DE736786C (de) * 1935-10-23 1943-06-28 Telefunken Gmbh UEberlagerungsempfaenger mit Umschalter zur UEberbrueckung des bei Ortsempfang unwirksam gemachten Zwischenfrequenzteiles

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1472218A (en) * 1919-08-05 1923-10-30 Jr John Hays Hammond Transmission and receiving system
USRE21473E (en) * 1933-04-27 1940-06-04 Receiving means
US2024614A (en) * 1934-07-07 1935-12-17 Rca Corp High frequency receiver of the superheterodyne type
US2031465A (en) * 1934-12-05 1936-02-18 Gen Electric Signaling system
US2165794A (en) * 1935-09-30 1939-07-11 Rca Corp Television apparatus
US2301504A (en) * 1941-06-21 1942-11-10 John C Batchelor Combination receiver

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE736786C (de) * 1935-10-23 1943-06-28 Telefunken Gmbh UEberlagerungsempfaenger mit Umschalter zur UEberbrueckung des bei Ortsempfang unwirksam gemachten Zwischenfrequenzteiles
CH194604A (de) * 1936-03-21 1937-12-15 Schaub Georg Von Uberlagerungsempfänger.

Also Published As

Publication number Publication date
FR903551A (fr) 1945-10-09
GB616846A (en) 1949-01-27
NL65112C (en:Method)
CH241790A (de) 1946-03-31
US2596624A (en) 1952-05-13
BE455392A (en:Method)

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