FR2549658A1 - Dispositif d'accord et recepteur d'ondes electromagnetiques - Google Patents

Dispositif d'accord et recepteur d'ondes electromagnetiques Download PDF

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Publication number
FR2549658A1
FR2549658A1 FR8411580A FR8411580A FR2549658A1 FR 2549658 A1 FR2549658 A1 FR 2549658A1 FR 8411580 A FR8411580 A FR 8411580A FR 8411580 A FR8411580 A FR 8411580A FR 2549658 A1 FR2549658 A1 FR 2549658A1
Authority
FR
France
Prior art keywords
frequency
mixer
signal path
oscillator
local oscillator
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.)
Withdrawn
Application number
FR8411580A
Other languages
English (en)
French (fr)
Inventor
Rodney James Lawton
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.)
Plessey Overseas Ltd
Original Assignee
Plessey Overseas Ltd
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 Plessey Overseas Ltd filed Critical Plessey Overseas Ltd
Publication of FR2549658A1 publication Critical patent/FR2549658A1/fr
Withdrawn legal-status Critical Current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
    • H03D7/16—Multiple-frequency-changing
    • H03D7/161—Multiple-frequency-changing all the frequency changers being connected in cascade
    • 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
    • H03D7/16—Multiple-frequency-changing
    • H03D7/161—Multiple-frequency-changing all the frequency changers being connected in cascade
    • H03D7/163—Multiple-frequency-changing all the frequency changers being connected in cascade the local oscillations of at least two of the frequency changers being derived from a single oscillator

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Superheterodyne Receivers (AREA)
FR8411580A 1983-07-22 1984-07-20 Dispositif d'accord et recepteur d'ondes electromagnetiques Withdrawn FR2549658A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08319785A GB2143691A (en) 1983-07-22 1983-07-22 A double superhet tuner

Publications (1)

Publication Number Publication Date
FR2549658A1 true FR2549658A1 (fr) 1985-01-25

Family

ID=10546114

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8411580A Withdrawn FR2549658A1 (fr) 1983-07-22 1984-07-20 Dispositif d'accord et recepteur d'ondes electromagnetiques

Country Status (5)

Country Link
JP (1) JPS6042943A (nl)
DE (1) DE3426507A1 (nl)
FR (1) FR2549658A1 (nl)
GB (1) GB2143691A (nl)
NL (1) NL8402169A (nl)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE8406489L (sv) * 1984-12-19 1986-06-20 Nordspace Ab Televisionsmottagningssystem
AU5127685A (en) * 1984-12-19 1986-07-10 Nordspace Aktiebolag Received television distribution system
JPS6352507A (ja) * 1986-08-21 1988-03-05 Mitsubishi Electric Corp 可変フイルタ
US4727591A (en) * 1986-09-04 1988-02-23 Arvin Industries, Inc. Microprocessor controlled tuning system
US5014350A (en) * 1988-04-28 1991-05-07 Sanyo Electric Co., Ltd. Apparatus for and method of improving the AFC of a television broadcast satellite receiver
DE3909685A1 (de) * 1989-03-23 1990-09-27 Kathrein Werke Kg Verfahren zur frequenzumsetzung insbesondere fuer satellitenempfangs-gemeinschaftsanlagen sowie zugehoeriger frequenzumsetzer
EP1145430B1 (en) 1998-11-12 2004-09-15 Broadcom Corporation Integrated tuner architecture

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR659686A (fr) * 1927-12-21 1929-07-02 Perfectionnements aux systèmes récepteurs d'oscillations électriques
US2211352A (en) * 1939-01-20 1940-08-13 Hazeltine Corp Superheterodyne frequency changer
DE2916171A1 (de) * 1979-04-21 1980-10-30 Licentia Gmbh Ueberlagerungsempfaenger

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB604773A (en) * 1944-07-22 1948-07-09 Standard Telephones Cables Ltd Superheterodyne radio receivers
FR1550217A (nl) * 1967-09-20 1968-12-20
FR2194076B1 (nl) * 1972-07-27 1976-10-29 Neo Tec Etude Applic Tech
IT1091632B (it) * 1977-12-30 1985-07-06 Indesit Disposizione circuitale per sintonizzare un segnale tra una pluralita di segnali radioelettrici
JPS57107645A (en) * 1980-12-25 1982-07-05 Toshiba Corp Tuner

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR659686A (fr) * 1927-12-21 1929-07-02 Perfectionnements aux systèmes récepteurs d'oscillations électriques
US2211352A (en) * 1939-01-20 1940-08-13 Hazeltine Corp Superheterodyne frequency changer
DE2916171A1 (de) * 1979-04-21 1980-10-30 Licentia Gmbh Ueberlagerungsempfaenger

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
N.E.C. RESEARCH & DEVELOPMENT, no. 69, avril 1983, pages 36-42, Tokyo, JP; H. YOSHIDA et al.: "12 GHz Broadcasting-satellite receiver" *

Also Published As

Publication number Publication date
GB8319785D0 (en) 1983-08-24
NL8402169A (nl) 1985-02-18
GB2143691A (en) 1985-02-13
JPS6042943A (ja) 1985-03-07
DE3426507A1 (de) 1985-01-31

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Legal Events

Date Code Title Description
ST Notification of lapse