NL149043B - AUTOMATIC TUNING DEVICE FOR A TELEVISION RECEIVER. - Google Patents
AUTOMATIC TUNING DEVICE FOR A TELEVISION RECEIVER.Info
- Publication number
- NL149043B NL149043B NL6818373A NL6818373A NL149043B NL 149043 B NL149043 B NL 149043B NL 6818373 A NL6818373 A NL 6818373A NL 6818373 A NL6818373 A NL 6818373A NL 149043 B NL149043 B NL 149043B
- Authority
- NL
- Netherlands
- Prior art keywords
- television receiver
- tuning device
- automatic tuning
- automatic
- television
- Prior art date
Links
Classifications
-
- 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
- H03J7/08—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 varactors, i.e. voltage variable reactive diodes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J3/00—Continuous tuning
- H03J3/02—Details
- H03J3/12—Electrically-operated arrangements for indicating correct tuning
- H03J3/14—Visual indication, e.g. magic eye
-
- 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
- H03J5/24—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 a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
- H03J5/242—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 a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection
- H03J5/244—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 a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection using electronic means
-
- 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
- H03J7/24—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element using varactors, i.e. voltage variable reactive diodes
- H03J7/26—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element using varactors, i.e. voltage variable reactive diodes in which an automatic frequency control circuit is brought into action after the scanning action has been stopped
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/50—Tuning indicators; Automatic tuning control
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL6818373A NL149043B (en) | 1968-12-20 | 1968-12-20 | AUTOMATIC TUNING DEVICE FOR A TELEVISION RECEIVER. |
FR1602578D FR1602578A (en) | 1968-12-20 | 1968-12-24 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL6818373A NL149043B (en) | 1968-12-20 | 1968-12-20 | AUTOMATIC TUNING DEVICE FOR A TELEVISION RECEIVER. |
Publications (2)
Publication Number | Publication Date |
---|---|
NL6818373A NL6818373A (en) | 1970-06-23 |
NL149043B true NL149043B (en) | 1976-03-15 |
Family
ID=19805459
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL6818373A NL149043B (en) | 1968-12-20 | 1968-12-20 | AUTOMATIC TUNING DEVICE FOR A TELEVISION RECEIVER. |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR1602578A (en) |
NL (1) | NL149043B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3619492A (en) * | 1969-06-02 | 1971-11-09 | Rca Corp | Automatic fine tuning circuitry |
FR2185906B1 (en) * | 1972-05-23 | 1977-05-06 | Autovox Spa |
-
1968
- 1968-12-20 NL NL6818373A patent/NL149043B/en not_active IP Right Cessation
- 1968-12-24 FR FR1602578D patent/FR1602578A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL6818373A (en) | 1970-06-23 |
FR1602578A (en) | 1970-12-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
V1 | Lapsed because of non-payment of the annual fee | ||
NL80 | Abbreviated name of patent owner mentioned of already nullified patent |
Owner name: MATSUSHITA |