IT1036184B - TELEVISION RECEIVER PURCHASES A TUNING CIRCUIT - Google Patents

TELEVISION RECEIVER PURCHASES A TUNING CIRCUIT

Info

Publication number
IT1036184B
IT1036184B IT6845375A IT6845375A IT1036184B IT 1036184 B IT1036184 B IT 1036184B IT 6845375 A IT6845375 A IT 6845375A IT 6845375 A IT6845375 A IT 6845375A IT 1036184 B IT1036184 B IT 1036184B
Authority
IT
Italy
Prior art keywords
television receiver
tuning circuit
purchases
receiver purchases
tuning
Prior art date
Application number
IT6845375A
Other languages
Italian (it)
Original Assignee
Magnavox Co
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
Priority claimed from US05/476,645 external-priority patent/US3946329A/en
Priority claimed from US476484A external-priority patent/US3913029A/en
Priority claimed from US05/476,503 external-priority patent/US4020419A/en
Application filed by Magnavox Co filed Critical Magnavox Co
Application granted granted Critical
Publication of IT1036184B publication Critical patent/IT1036184B/en

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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
    • H03J7/06—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using counters or frequency dividers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/18—Automatic scanning over a band of frequencies
    • H03J7/20—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element
    • H03J7/28—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element using counters or frequency dividers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Superheterodyne Receivers (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
IT6845375A 1974-06-05 1975-06-05 TELEVISION RECEIVER PURCHASES A TUNING CIRCUIT IT1036184B (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US47650274A 1974-06-05 1974-06-05
US05/476,645 US3946329A (en) 1974-06-05 1974-06-05 Electronic automatic frequency tuning system
US476484A US3913029A (en) 1974-06-05 1974-06-05 Electronic automatic frequency tuning system
US05/476,503 US4020419A (en) 1974-06-05 1974-06-05 Electronic system for automatically tuning to a selected television channel

Publications (1)

Publication Number Publication Date
IT1036184B true IT1036184B (en) 1979-10-30

Family

ID=27504214

Family Applications (1)

Application Number Title Priority Date Filing Date
IT6845375A IT1036184B (en) 1974-06-05 1975-06-05 TELEVISION RECEIVER PURCHASES A TUNING CIRCUIT

Country Status (3)

Country Link
DE (1) DE2525084A1 (en)
FR (1) FR2274182A1 (en)
IT (1) IT1036184B (en)

Also Published As

Publication number Publication date
DE2525084A1 (en) 1975-12-18
FR2274182A1 (en) 1976-01-02

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