NL7614452A - Schakeling voor automatische fijne afstemming. - Google Patents
Schakeling voor automatische fijne afstemming.Info
- Publication number
- NL7614452A NL7614452A NL7614452A NL7614452A NL7614452A NL 7614452 A NL7614452 A NL 7614452A NL 7614452 A NL7614452 A NL 7614452A NL 7614452 A NL7614452 A NL 7614452A NL 7614452 A NL7614452 A NL 7614452A
- Authority
- NL
- Netherlands
- Prior art keywords
- gearbox
- fine tuning
- automatic fine
- automatic
- tuning
- 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
- H03J7/023—Neutralization of the automatic frequency correction during a tuning change
-
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Television Receiver Circuits (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Superheterodyne Receivers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15720775A JPS5292424A (en) | 1975-12-26 | 1975-12-26 | Aft circuit |
JP15720875A JPS5289416A (en) | 1975-12-26 | 1975-12-26 | Aft circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
NL7614452A true NL7614452A (nl) | 1977-06-28 |
Family
ID=26484757
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL7614452A NL7614452A (nl) | 1975-12-26 | 1976-12-27 | Schakeling voor automatische fijne afstemming. |
Country Status (7)
Country | Link |
---|---|
US (1) | US4121254A (de) |
AU (1) | AU505065B2 (de) |
CA (1) | CA1064580A (de) |
DE (1) | DE2659051A1 (de) |
FR (1) | FR2336830A1 (de) |
GB (1) | GB1536040A (de) |
NL (1) | NL7614452A (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6011852B2 (ja) * | 1977-09-28 | 1985-03-28 | ソニー株式会社 | 受信機 |
JPS5556058U (de) * | 1978-10-12 | 1980-04-16 | ||
JPS5563118A (en) * | 1978-11-02 | 1980-05-13 | Sony Corp | Aft circuit |
US4365349A (en) * | 1980-02-01 | 1982-12-21 | Nippon Gakki Seizo Kabushiki Kaisha | Radio receiver having phase locked loop and automatic frequency control loop for stably maintaining local oscillator frequency of voltage-controlled local oscillator |
DE3502638A1 (de) * | 1985-01-26 | 1986-07-31 | MWB Messwandler-Bau AG, 8600 Bamberg | Verfahren, schaltung und einrichtung zur beseitigung der gleichspannungskomponente eines kapazitiven wechselspannungsteilers |
KR100309097B1 (ko) * | 1998-04-30 | 2001-11-15 | 윤종용 | 텔레비젼수신기의정밀튜닝방법및장치와잔류측파대신호정합방법및장치 |
MY142732A (en) * | 2004-06-28 | 2010-12-31 | Sony Emcs Malaysia Sdn Bhd | Electronic switch for tv signal booster |
MX2007012245A (es) * | 2005-04-04 | 2007-12-06 | That Corp | Sistema de estimacion y control de calidad de senal. |
GB0624982D0 (en) * | 2006-12-14 | 2007-01-24 | Cambridge Silicon Radio Ltd | FM signal quality measurement |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1409798A (en) * | 1971-09-25 | 1975-10-15 | Matsushita Electric Ind Co Ltd | Frequency control arrangements |
FR2185906B1 (de) * | 1972-05-23 | 1977-05-06 | Autovox Spa | |
US3867568A (en) * | 1972-12-04 | 1975-02-18 | Warwick Electronics Inc | Control circuit for an afc system |
US3869674A (en) * | 1972-12-26 | 1975-03-04 | Dynaco Inc | A.f.c. disabling circuitry |
US3821650A (en) * | 1973-01-26 | 1974-06-28 | Motorola Inc | Phase lock loop electronic tuning system |
GB1481633A (en) * | 1973-08-16 | 1977-08-03 | Matsushita Electric Ind Co Ltd | Automatic frequency control devices |
US3913029A (en) * | 1974-06-05 | 1975-10-14 | Magnavox Co | Electronic automatic frequency tuning system |
US3946329A (en) * | 1974-06-05 | 1976-03-23 | The Magnavox Company | Electronic automatic frequency tuning system |
US3949158A (en) * | 1974-12-31 | 1976-04-06 | Quasar Electronics Corporation | Wide band aft circuit for television receiver |
US3952143A (en) * | 1975-03-31 | 1976-04-20 | Gte Sylvania Incorporated | Wide band AFC system |
-
1976
- 1976-12-22 GB GB53562/76A patent/GB1536040A/en not_active Expired
- 1976-12-22 CA CA268,509A patent/CA1064580A/en not_active Expired
- 1976-12-23 AU AU20849/76A patent/AU505065B2/en not_active Expired
- 1976-12-27 NL NL7614452A patent/NL7614452A/xx not_active Application Discontinuation
- 1976-12-27 DE DE19762659051 patent/DE2659051A1/de active Granted
- 1976-12-27 US US05/754,167 patent/US4121254A/en not_active Expired - Lifetime
- 1976-12-27 FR FR7639162A patent/FR2336830A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
CA1064580A (en) | 1979-10-16 |
DE2659051C2 (de) | 1987-07-16 |
AU505065B2 (en) | 1979-11-08 |
US4121254A (en) | 1978-10-17 |
FR2336830A1 (fr) | 1977-07-22 |
GB1536040A (en) | 1978-12-20 |
FR2336830B1 (de) | 1982-10-01 |
AU2084976A (en) | 1978-06-29 |
DE2659051A1 (de) | 1977-07-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BA | A request for search or an international-type search has been filed | ||
BB | A search report has been drawn up | ||
BC | A request for examination has been filed | ||
A85 | Still pending on 85-01-01 | ||
BV | The patent application has lapsed |