AU547192B2 - Digital control - Google Patents

Digital control

Info

Publication number
AU547192B2
AU547192B2 AU72548/81A AU7254881A AU547192B2 AU 547192 B2 AU547192 B2 AU 547192B2 AU 72548/81 A AU72548/81 A AU 72548/81A AU 7254881 A AU7254881 A AU 7254881A AU 547192 B2 AU547192 B2 AU 547192B2
Authority
AU
Australia
Prior art keywords
digital control
digital
control
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.)
Ceased
Application number
AU72548/81A
Other versions
AU7254881A (en
Inventor
Fabrice Magnan De Bornier
John Shepherd
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.)
Thomson-Brandt SA
Original Assignee
Thomson-Brandt SA
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 Thomson-Brandt SA filed Critical Thomson-Brandt SA
Publication of AU7254881A publication Critical patent/AU7254881A/en
Application granted granted Critical
Publication of AU547192B2 publication Critical patent/AU547192B2/en
Anticipated expiration legal-status Critical
Ceased 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
    • H03J5/02—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 variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
    • H03J5/0245—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form
    • H03J5/0254—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being transfered to a D/A converter
    • H03J5/0263—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being transfered to a D/A converter the digital values being held in an auxiliary non erasable memory
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Analogue/Digital Conversion (AREA)
AU72548/81A 1980-07-04 1981-07-03 Digital control Ceased AU547192B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8014908A FR2486332B1 (en) 1980-07-04 1980-07-04 DEVICE FOR ADJUSTING THE OPERATING POINT OF AN ELECTRONIC CIRCUIT COMPRISING SEVERAL VARIABLE ELEMENTS, PARTICULARLY IN SATELLITE TELEVISION
FR8014908 1980-07-04

Publications (2)

Publication Number Publication Date
AU7254881A AU7254881A (en) 1982-01-07
AU547192B2 true AU547192B2 (en) 1985-10-10

Family

ID=9243854

Family Applications (1)

Application Number Title Priority Date Filing Date
AU72548/81A Ceased AU547192B2 (en) 1980-07-04 1981-07-03 Digital control

Country Status (4)

Country Link
EP (1) EP0044237B1 (en)
AU (1) AU547192B2 (en)
DE (1) DE3177146D1 (en)
FR (1) FR2486332B1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3332206A1 (en) * 1983-09-07 1985-04-25 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co KG, 8510 Fürth METHOD FOR MATCHING A MULTI-STAGE SELECTIVE AMPLIFIER AND ARRANGEMENT FOR IMPLEMENTING THE METHOD
GB8524165D0 (en) * 1985-10-01 1985-11-06 Plessey Co Plc Frequency alignment circuit & synthesizer
DE19602573A1 (en) 1996-01-25 1997-08-07 Grundig Ag Tuner for receiving digital signals
DE19741325C2 (en) 1997-09-19 1999-10-07 Temic Semiconductor Gmbh Method of balancing a multi-stage selective amplifier

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4121162A (en) * 1976-06-14 1978-10-17 Motorola, Inc. Digital phase locked loop tuning system
JPS53131702A (en) * 1977-04-21 1978-11-16 Sony Corp Electronic tuning device
US4152654A (en) * 1977-06-17 1979-05-01 Zenith Radio Corporation Memory-saving all channel digital tuning system
US4144498A (en) * 1977-07-15 1979-03-13 Zenith Radio Corporation Television tuning method and apparatus for tuning employing slope factor derivation
US4161699A (en) * 1978-01-03 1979-07-17 Zenith Radio Corporation Second derivative memory-saving all channel digital tuning system
DE2814577A1 (en) * 1978-04-05 1979-10-11 Nordmende Radio receiver with microcomputer - generating control signals for input and main tuning circuits and controlling changeover
DE2834231A1 (en) * 1978-08-04 1980-02-28 Blaupunkt Werke Gmbh Synchronisation of oscillator with input circuit of superhet receiver - sorting control voltages for input circuit corresp. to those of oscillator

Also Published As

Publication number Publication date
DE3177146D1 (en) 1990-02-15
FR2486332B1 (en) 1986-05-30
FR2486332A1 (en) 1982-01-08
AU7254881A (en) 1982-01-07
EP0044237B1 (en) 1990-01-10
EP0044237A1 (en) 1982-01-20

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