IT1036184B - TELEVISION RECEIVER PURCHASES A TUNING CIRCUIT - Google Patents
TELEVISION RECEIVER PURCHASES A TUNING CIRCUITInfo
- 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
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
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) |
-
1975
- 1975-06-05 IT IT6845375A patent/IT1036184B/en active
- 1975-06-05 DE DE19752525084 patent/DE2525084A1/en active Pending
- 1975-06-05 FR FR7517567A patent/FR2274182A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
DE2525084A1 (en) | 1975-12-18 |
FR2274182A1 (en) | 1976-01-02 |
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