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AU7254881A - Digital control - Google Patents

Digital control

Info

Publication number
AU7254881A
AU7254881A AU72548/81A AU7254881A AU7254881A AU 7254881 A AU7254881 A AU 7254881A AU 72548/81 A AU72548/81 A AU 72548/81A AU 7254881 A AU7254881 A AU 7254881A AU 7254881 A AU7254881 A AU 7254881A
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.)
Granted
Application number
AU72548/81A
Other versions
AU547192B2 (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 true AU7254881A (en) 1982-01-07
AU547192B2 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
AU547192B2 (en) 1985-10-10
EP0044237A1 (en) 1982-01-20
EP0044237B1 (en) 1990-01-10
FR2486332B1 (en) 1986-05-30
FR2486332A1 (en) 1982-01-08

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