FI843678A0 - AVSTAEMNINGSENHET FOER INFORMATIONSTEKNISK APPARAT. - Google Patents

AVSTAEMNINGSENHET FOER INFORMATIONSTEKNISK APPARAT.

Info

Publication number
FI843678A0
FI843678A0 FI843678A FI843678A FI843678A0 FI 843678 A0 FI843678 A0 FI 843678A0 FI 843678 A FI843678 A FI 843678A FI 843678 A FI843678 A FI 843678A FI 843678 A0 FI843678 A0 FI 843678A0
Authority
FI
Finland
Prior art keywords
switched
informationsteknisk
avstaemningsenhet
apparat
foer
Prior art date
Application number
FI843678A
Other languages
Finnish (fi)
Other versions
FI82792C (en
FI843678L (en
FI82792B (en
Inventor
Gerhard Maier
Original Assignee
Thomson Brandt Gmbh
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6178584&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI843678(A0) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Thomson Brandt Gmbh filed Critical Thomson Brandt Gmbh
Publication of FI843678L publication Critical patent/FI843678L/en
Publication of FI843678A0 publication Critical patent/FI843678A0/en
Application granted granted Critical
Publication of FI82792B publication Critical patent/FI82792B/en
Publication of FI82792C publication Critical patent/FI82792C/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/28—Continuous tuning of more than one resonant circuit simultaneously, the tuning frequencies of the circuits having a substantially constant difference throughout the tuning range
    • H03J3/32—Arrangements for ensuring tracking with variable capacitors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J2200/00—Indexing scheme relating to tuning resonant circuits and selecting resonant circuits
    • H03J2200/28—Automatic self-alignment of a receiver

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Superheterodyne Receivers (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Selective Calling Equipment (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Circuits Of Receivers In General (AREA)
  • Structure Of Receivers (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Electrophonic Musical Instruments (AREA)

Abstract

Upon the selection of a desired reception channel, the tuner oscillator (9) is switched off, while an oscillator (15) simulating reception signals is switched on at the antenna input and is switched alternatingly on at least two frequencies within the reception channel. A R.F. signal demodulator (16) provides to a microprocessor (13) a criterion to indicate an optimum tuning. The obtained tuning voltage is conducted to the R.F. circles (3-5) to be adjusted after digital/analogue transformation (18-20), up to the end of the adjustment of all circles.
FI843678A 1982-11-20 1984-09-19 AVSTAEMNINGSENHET FOER INFORMATIONSTEKNISK APPARAT. FI82792C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3242965A DE3242965C1 (en) 1982-11-20 1982-11-20 Tuning unit for telecommunications equipment
DE3242965 1982-11-20
PCT/EP1983/000304 WO1984002236A1 (en) 1982-11-20 1983-11-17 Tuning unit for apparatus in the field of communications
EP8300304 1983-11-17

Publications (4)

Publication Number Publication Date
FI843678L FI843678L (en) 1984-09-19
FI843678A0 true FI843678A0 (en) 1984-09-19
FI82792B FI82792B (en) 1990-12-31
FI82792C FI82792C (en) 1991-04-10

Family

ID=6178584

Family Applications (1)

Application Number Title Priority Date Filing Date
FI843678A FI82792C (en) 1982-11-20 1984-09-19 AVSTAEMNINGSENHET FOER INFORMATIONSTEKNISK APPARAT.

Country Status (6)

Country Link
EP (1) EP0109661B1 (en)
AT (1) ATE29191T1 (en)
DE (2) DE3242965C1 (en)
DK (1) DK157279C (en)
FI (1) FI82792C (en)
WO (1) WO1984002236A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8402880A (en) * 1984-09-20 1986-04-16 Philips Nv TV RECEIVER WITH AN AUTOMATIC HIGH-FREQUENT CIRCUIT ADJUSTMENT.
DE3609349C3 (en) * 1985-03-22 1994-09-15 Victor Company Of Japan Superhet TV tuner
DE3512873A1 (en) * 1985-04-11 1986-10-30 Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen TUNING SYSTEM FOR TELEVISIONS
US4780909A (en) 1985-07-02 1988-10-25 Matsushita Electric Industrial Co. Ltd. Signal receiver having automatic frequency characteristic adjusting capability
GB2188502B (en) * 1986-02-25 1989-11-08 Plessey Co Plc Tuner circuit including tuning voltage generator
FR2661057A1 (en) * 1990-04-12 1991-10-18 Tekelec Airtronic Sa METHOD FOR TUNING AT LEAST ONE VARIABLE FREQUENCY FILTER OF A FILTER ARRANGEMENT ON A NEW SELECTED FREQUENCY AND SYSTEM FOR IMPLEMENTING SAID METHOD
JPH04111540A (en) * 1990-08-30 1992-04-13 Matsushita Electric Ind Co Ltd Double supertuner
EP0540908B1 (en) * 1991-11-04 1997-01-08 Motorola, Inc. Method and apparatus for automatic tuning calibration of electronically tuned filters
FI94689C (en) * 1992-12-10 1995-10-10 Nokia Mobile Phones Ltd Reconciliation of tuning circuits in a radio receiver
DE19515218A1 (en) * 1995-04-28 1996-10-31 Thomson Brandt Gmbh Oscillator arrangement tuning method
JP4547282B2 (en) * 2005-03-07 2010-09-22 株式会社フジクラ Connector for automatic alignment

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3736512A (en) * 1972-02-24 1973-05-29 Us Navy Non-interfering on-line communication receiver test system
DE2744213C2 (en) * 1977-09-30 1979-09-20 Siemens Ag, 1000 Berlin Und 8000 Muenchen Method for coordinating a multi-circuit band filter arranged in the signal path within a circuit system and arrangement for carrying out the method
JPS55633A (en) * 1978-06-16 1980-01-07 Sansui Electric Co Receiving unit
DE2854852C2 (en) * 1978-12-19 1985-02-07 Telefunken electronic GmbH, 7100 Heilbronn Electronic voting unit, in particular for television receivers
JPS5733822A (en) * 1980-08-07 1982-02-24 Sony Corp Automatic tracking device
US4334323A (en) * 1980-09-08 1982-06-08 Zenith Radio Corporation Self tracking tuner

Also Published As

Publication number Publication date
FI82792C (en) 1991-04-10
DE3373247D1 (en) 1987-10-01
DK435584D0 (en) 1984-09-12
DE3242965C1 (en) 1984-05-30
WO1984002236A1 (en) 1984-06-07
FI843678L (en) 1984-09-19
FI82792B (en) 1990-12-31
EP0109661A1 (en) 1984-05-30
DK157279C (en) 1990-05-07
EP0109661B1 (en) 1987-08-26
DK435584A (en) 1984-09-12
ATE29191T1 (en) 1987-09-15
DK157279B (en) 1989-11-27

Similar Documents

Publication Publication Date Title
FI843678A0 (en) AVSTAEMNINGSENHET FOER INFORMATIONSTEKNISK APPARAT.
FI843679A0 (en) AVSTAEMNINGSENHET FOER APPARATER FOER UNDERRAETTELSEKOMMUNIKATIONSTEKNIK.
AU4953979A (en) Receiver tuning with frequency synthesizer
DE68925148D1 (en) Frequency demodulation circuit
AU519279B2 (en) Receiver tuning frequency presetting
JPS5776935A (en) Tuner
JPS5526731A (en) Television tuner
JPS5362916A (en) Am tuner circuit
JPS52102626A (en) Tv receiver
JPS56162525A (en) Tuner
JPS5413205A (en) Automatic channel tuner
JPS5579538A (en) Tuner unit of television receiver
ES450963A1 (en) Tuner apparatus with mixer bias circuit
JPS5720036A (en) High-frequency receiver
JPS54157420A (en) Search auxiliary circuit for radio receiver for tuning with carrier frequency of carrier frequency applied with pilot tone
KR950002040B1 (en) Auto-frequency tuning device
ES8105905A1 (en) Converter circuit for television signals.
JPS56132011A (en) Tuner device of television receiver
JPS5634221A (en) Channel selection unit
JPS55161412A (en) Tuner unit
GB625977A (en) Improvements relating to automatic frequency control of radio frequency oscillators
JPS5684005A (en) Fm demodulator
JPS57109432A (en) Radio frequency input stage for television receiver
AU4357479A (en) Electronic tuning radio receiver
JPS5413201A (en) Tuning circuit

Legal Events

Date Code Title Description
MM Patent lapsed
MM Patent lapsed

Owner name: DEUTSCHE THOMSON-BRANDT GMBH