FR2336830A1 - Circuit de reglage fin automatique de la frequence d'accord d'un recepteur de television - Google Patents
Circuit de reglage fin automatique de la frequence d'accord d'un recepteur de televisionInfo
- Publication number
- FR2336830A1 FR2336830A1 FR7639162A FR7639162A FR2336830A1 FR 2336830 A1 FR2336830 A1 FR 2336830A1 FR 7639162 A FR7639162 A FR 7639162A FR 7639162 A FR7639162 A FR 7639162A FR 2336830 A1 FR2336830 A1 FR 2336830A1
- Authority
- FR
- France
- Prior art keywords
- television receiver
- frequency circuit
- tuning frequency
- automatic end
- automatic
- 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
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)
- Superheterodyne Receivers (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (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 (2)
Publication Number | Publication Date |
---|---|
FR2336830A1 true FR2336830A1 (fr) | 1977-07-22 |
FR2336830B1 FR2336830B1 (fr) | 1982-10-01 |
Family
ID=26484757
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7639162A Granted FR2336830A1 (fr) | 1975-12-26 | 1976-12-27 | Circuit de reglage fin automatique de la frequence d'accord d'un recepteur de television |
Country Status (7)
Country | Link |
---|---|
US (1) | US4121254A (fr) |
AU (1) | AU505065B2 (fr) |
CA (1) | CA1064580A (fr) |
DE (1) | DE2659051A1 (fr) |
FR (1) | FR2336830A1 (fr) |
GB (1) | GB1536040A (fr) |
NL (1) | NL7614452A (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2404955A1 (fr) * | 1977-09-28 | 1979-04-27 | Sony Corp | Recepteur muni d'un dispositif d'accord electrique numerique |
FR2440655A1 (fr) * | 1978-11-02 | 1980-05-30 | Sony Corp | Circuit d'accord fin automatique |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5556058U (fr) * | 1978-10-12 | 1980-04-16 | ||
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 |
CA2602860A1 (fr) * | 2005-04-04 | 2006-10-12 | That Corporation | Systeme de controle et d'estimation de la qualite de signal |
GB0624982D0 (en) * | 2006-12-14 | 2007-01-24 | Cambridge Silicon Radio Ltd | FM signal quality measurement |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2185906A1 (fr) * | 1972-05-23 | 1974-01-04 | Autovox Spa | |
FR2215751A1 (fr) * | 1973-01-26 | 1974-08-23 | Motorola Inc | |
US3913029A (en) * | 1974-06-05 | 1975-10-14 | Magnavox Co | Electronic automatic frequency tuning system |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1409798A (en) * | 1971-09-25 | 1975-10-15 | Matsushita Electric Ind Co Ltd | Frequency control arrangements |
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 |
GB1481633A (en) * | 1973-08-16 | 1977-08-03 | Matsushita Electric Ind Co Ltd | Automatic frequency control devices |
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 CA CA268,509A patent/CA1064580A/fr not_active Expired
- 1976-12-22 GB GB53562/76A patent/GB1536040A/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 FR FR7639162A patent/FR2336830A1/fr active Granted
- 1976-12-27 DE DE19762659051 patent/DE2659051A1/de active Granted
- 1976-12-27 US US05/754,167 patent/US4121254A/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2185906A1 (fr) * | 1972-05-23 | 1974-01-04 | Autovox Spa | |
FR2215751A1 (fr) * | 1973-01-26 | 1974-08-23 | Motorola Inc | |
US3913029A (en) * | 1974-06-05 | 1975-10-14 | Magnavox Co | Electronic automatic frequency tuning system |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2404955A1 (fr) * | 1977-09-28 | 1979-04-27 | Sony Corp | Recepteur muni d'un dispositif d'accord electrique numerique |
FR2440655A1 (fr) * | 1978-11-02 | 1980-05-30 | Sony Corp | Circuit d'accord fin automatique |
Also Published As
Publication number | Publication date |
---|---|
GB1536040A (en) | 1978-12-20 |
DE2659051C2 (fr) | 1987-07-16 |
FR2336830B1 (fr) | 1982-10-01 |
AU2084976A (en) | 1978-06-29 |
NL7614452A (nl) | 1977-06-28 |
DE2659051A1 (de) | 1977-07-28 |
CA1064580A (fr) | 1979-10-16 |
US4121254A (en) | 1978-10-17 |
AU505065B2 (en) | 1979-11-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
PL209268A1 (pl) | Uklad strojenia odbiornika telewizyjnego | |
FR2497430B1 (fr) | Recepteur de television comportant un circuit pour doubler la frequence de balayage de ligne | |
FR2527406B1 (fr) | Oscillateur local uhf a frequence variable pour recepteur de television | |
IT1057837B (it) | Dispositivo per la sintonizzazione di un televisore | |
GB2035735B (en) | Television receiver muting circuit | |
FR2336830A1 (fr) | Circuit de reglage fin automatique de la frequence d'accord d'un recepteur de television | |
DE3362628D1 (en) | Device for the automatic linearisation of the frequency-control signal characteristic of a frequency-modulated oscillator with variable frequency | |
MX142857A (es) | Mejoras a un circuito limitador automatico de ruido para receptores de radiofrecuencia | |
HK21584A (en) | Broadcast receiver including a search tuning circuit | |
DK73983A (da) | Fm-modtager med en frekvenslaast sloejfe | |
FR2440655B1 (fr) | Circuit d'accord fin automatique | |
FR2421519B1 (fr) | Circuit d'accord automatique precis | |
GB2068668B (en) | Receiver having a search tuning circuit | |
JPS5311505A (en) | Tuning circuit for superheterodyne high frequency receiver | |
YU131477A (en) | Phase controlled receiver of a rail circuit | |
FR2334240A1 (fr) | Montage d'accord pour recepteurs haute frequence | |
FR2336001A2 (fr) | Montage d'accord pour recepteurs haute frequence | |
ZA774892B (en) | Television receiver having a synchronous detection circuit and a frequency deviation-detection circuit | |
FR2343323A1 (fr) | Commutateur a declic notamment pour recepteurs de television et de radio | |
DE3361428D1 (en) | Receiver comprising a search tuning circuit | |
IT8024016A0 (it) | Circuito per inibire le interferenze a radiofrequenza in un ricevitore televisivo. | |
IT1071537B (it) | Dispositivo per la sintonizzazione di un televisione | |
SE7707430L (sv) | Tv-mottagare innefattande en frekvenssyntetisatoravstemningskrets | |
BE828802A (fr) | Circuit d'accord automatique de recepteur | |
SE412502B (sv) | Matningskrets for televisionsmottagare |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |