ES8406020A1 - "perfeccionamientos introducidos en un aparato de control de sintonizacion para un sistema de television" - Google Patents
"perfeccionamientos introducidos en un aparato de control de sintonizacion para un sistema de television"Info
- Publication number
- ES8406020A1 ES8406020A1 ES525161A ES525161A ES8406020A1 ES 8406020 A1 ES8406020 A1 ES 8406020A1 ES 525161 A ES525161 A ES 525161A ES 525161 A ES525161 A ES 525161A ES 8406020 A1 ES8406020 A1 ES 8406020A1
- Authority
- ES
- Spain
- Prior art keywords
- frequency
- carrier
- measurement
- interval
- picture carrier
- 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.)
- Expired
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
- H03J7/06—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
- H03J7/065—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 the counter or frequency divider being used in a phase locked loop
-
- 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)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Television Receiver Circuits (AREA)
- Measuring Frequencies, Analyzing Spectra (AREA)
Abstract
PERFECCIONAMIENTOS INTRODUCIDOS EN UN APARATO DE CONTROL DE SINTONIZACION PARA UN SISTEMA DE TELEVISION.COMPRENDE UNA ENTRADA (1) PARA SEÑALES DE TELEVISION DE RADIOFRECUENCIAS, CADA UNA CON UNA PORTADORA DE IMAGEN MODULADA CON INFORMACION DE VIDEO; UNA ETAPA DE RADIOFRECUENCIA PARA TRATAR LAS SEÑALES DE RADIOFRECUENCIA; UN OSCILADOR (7) LOCAL PARA GENERAR UNA SEÑAL DE OSCILADOR (37) LOCAL; UN MEZCLADOR (5) ACOPLADO A LA ETAPA DE RADIOFRECUENCIA; SISTEMAS DE TRATAMIENTO DE IMAGEN (15) QUE RESPONDEN A LA SEÑAL DE FRECUENCIA INTERMEDIA Y SISTEMAS DE TRATAMIENTODE SINCRONISMO (17) QUE RESPONDEN A LA SEÑAL DE FRECUENCIA INTERMEDIA. INCLUYE SISTEMAS GENERADORES DE SEÑAL DE CONTROL DE SINTONIA; SISTEMAS DE CONTROL DE SINTONIA; SISTEMAS DE HABILITACION DE SINTONIA FINA QUE HABILITAN SELECTIVAMENTE LOS SISTEMAS DE CONTROL DE SINTONIA FINA. LOS SISTEMAS DE CONTROL DE SINTONIA (45) INCLUYEN SISTEMAS CONTADORES (35) PARA CONTAR CICLOS DE LA SEÑAL DE FRECUENCIA INTERMEDIA DURANTE UN INTERVALO PREDETERMINADO DE MEDIDA DE FRECUENCIA INTERMEDIA.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/413,769 US4485404A (en) | 1982-09-01 | 1982-09-01 | Digital aft system which is activated during vertical retrace intervals |
US06/413,762 US4484221A (en) | 1982-09-01 | 1982-09-01 | Shared counter arrangement for a digital frequency locked loop tuning system for selectively measuring the frequencies of the LO and IF signals |
Publications (2)
Publication Number | Publication Date |
---|---|
ES8406020A1 true ES8406020A1 (es) | 1984-06-16 |
ES525161A0 ES525161A0 (es) | 1984-06-16 |
Family
ID=27022287
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES525161A Granted ES525161A0 (es) | 1982-09-01 | 1983-08-25 | "perfeccionamientos introducidos en un aparato de control de sintonizacion para un sistema de television" |
Country Status (11)
Country | Link |
---|---|
JP (1) | JPH0793710B2 (es) |
KR (1) | KR920009011B1 (es) |
AT (1) | AT386713B (es) |
AU (1) | AU567304B2 (es) |
CA (1) | CA1203330A (es) |
DE (1) | DE3331609A1 (es) |
ES (1) | ES525161A0 (es) |
FR (1) | FR2541545B1 (es) |
GB (1) | GB2126813B (es) |
HK (1) | HK59291A (es) |
IT (1) | IT1171083B (es) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4503465A (en) * | 1982-11-24 | 1985-03-05 | Rca Corporation | Analog signal comparator using digital circuitry |
JPS59106265U (ja) * | 1982-12-31 | 1984-07-17 | 日本電気ホームエレクトロニクス株式会社 | 自動微同調回路 |
US4524387A (en) * | 1983-03-30 | 1985-06-18 | Rca Corporation | Synchronization input for television receiver on-screen alphanumeric display |
US4601060A (en) * | 1984-10-24 | 1986-07-15 | Rca Corporation | Automatic digital fine tuning system |
NL8801874A (nl) * | 1988-07-26 | 1990-02-16 | Philips Nv | Televisie-ontvanger met een afstemschakeling die een frequentiesyntheseschakeling bevat. |
JPH0648778B2 (ja) * | 1989-09-29 | 1994-06-22 | 三洋電機株式会社 | 衛星放送受信装置のafc方法 |
US5163164A (en) * | 1990-12-31 | 1992-11-10 | Thomson Consumer Electronics, Inc. | Microprocessor controlled digital aft unit |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB673770A (en) * | 1950-03-30 | 1952-06-11 | Standard Telephones Cables Ltd | Improvements in or relating to automatic frequency control arrangements for radio communication systems |
IT1073074B (it) * | 1975-11-14 | 1985-04-13 | Rca Corp | Sintetizzatore di frequenze televisive,per portanti di frequenza non standardizzata |
DE2660248C2 (de) * | 1975-11-14 | 1982-06-24 | RCA Corp., 10020 New York, N.Y. | Abstimmeinrichtung für Fernsehempfänger |
FR2340909A1 (fr) * | 1976-02-10 | 1977-09-09 | Omnium Assainissement | Materiaux-supports de fermentation biologique |
US4084127A (en) * | 1976-07-29 | 1978-04-11 | Rca Corporation | Digital frequency deviation detector useful in a television tuning system |
JPS5580928A (en) * | 1978-12-15 | 1980-06-18 | Sony Corp | Channel selection device |
JPS55147884A (en) * | 1979-05-07 | 1980-11-18 | Sanyo Electric Co Ltd | Aft circuit of television receiver |
NZ193794A (en) * | 1979-05-30 | 1984-03-30 | Rca Corp | Channel identification in multiband sweep tuning system |
JPS56782A (en) * | 1979-06-15 | 1981-01-07 | Sanyo Electric Co Ltd | Automatic tuning unit |
US4358791A (en) * | 1980-12-01 | 1982-11-09 | Rca Corporation | Phase locked loop tuning control system including a sync activated AFT signal seeking arrangement |
US4368540A (en) * | 1981-06-05 | 1983-01-11 | Rca Corporation | Phase locked loop tuning system including a prescaler conditioned to oscillate at an out-of-band frequency |
US4402089A (en) * | 1981-09-16 | 1983-08-30 | Rca Corporation | Television tuning system with electronic frequency adjustment apparatus |
JPS58111522A (ja) * | 1981-12-25 | 1983-07-02 | Sony Corp | Aft回路 |
-
1983
- 1983-08-25 ES ES525161A patent/ES525161A0/es active Granted
- 1983-08-29 CA CA000435566A patent/CA1203330A/en not_active Expired
- 1983-08-30 IT IT22693/83A patent/IT1171083B/it active
- 1983-08-30 AU AU18544/83A patent/AU567304B2/en not_active Ceased
- 1983-08-31 KR KR1019830004077A patent/KR920009011B1/ko not_active IP Right Cessation
- 1983-08-31 JP JP58161183A patent/JPH0793710B2/ja not_active Expired - Lifetime
- 1983-09-01 DE DE3331609A patent/DE3331609A1/de active Granted
- 1983-09-01 AT AT0313583A patent/AT386713B/de not_active IP Right Cessation
- 1983-09-01 FR FR838314040A patent/FR2541545B1/fr not_active Expired
- 1983-09-01 GB GB08323490A patent/GB2126813B/en not_active Expired
-
1991
- 1991-08-01 HK HK592/91A patent/HK59291A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
IT8322693A1 (it) | 1985-03-02 |
AT386713B (de) | 1988-10-10 |
DE3331609C2 (es) | 1988-01-21 |
GB2126813B (en) | 1986-07-23 |
JPH0793710B2 (ja) | 1995-10-09 |
CA1203330A (en) | 1986-04-15 |
FR2541545A1 (fr) | 1984-08-24 |
HK59291A (en) | 1991-08-09 |
JPS5964980A (ja) | 1984-04-13 |
KR840006116A (ko) | 1984-11-21 |
ES525161A0 (es) | 1984-06-16 |
IT8322693A0 (it) | 1983-08-30 |
AU567304B2 (en) | 1987-11-19 |
FR2541545B1 (fr) | 1989-06-30 |
AU1854483A (en) | 1984-03-08 |
KR920009011B1 (ko) | 1992-10-12 |
GB8323490D0 (en) | 1983-10-05 |
DE3331609A1 (de) | 1984-03-01 |
GB2126813A (en) | 1984-03-28 |
ATA313583A (de) | 1988-02-15 |
IT1171083B (it) | 1987-06-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5333517A (en) | Channel selection unit | |
ES8609859A1 (es) | Aparato para tratamiento de compresion de banda de una senalde imagen | |
ES8406020A1 (es) | "perfeccionamientos introducidos en un aparato de control de sintonizacion para un sistema de television" | |
JPS5351922A (en) | Television receiver | |
JPS5326A (en) | Video signal amplifier for television receiver | |
GB1186907A (en) | Improvements in or relating to Colour Television Receivers | |
DE3375951D1 (en) | Digital circuit for measuring the instantaneous frequency of a frequency-modulated or non modulated signal, as well as a television or radio receiver equipped with such a circuit | |
MY106646A (en) | Digital method and apparatus for measuring the frequency of an if signal | |
JPS5376623A (en) | Single-tube-type color television camera | |
MY108589A (en) | Microprocessor controlled digital aft unit | |
MY109848A (en) | Apparatus for identifying standard and n0n-standard video signals | |
JPS5539440A (en) | Tuning system of terminal unit for catv system | |
DE3173994D1 (en) | Signal error detecting | |
JPS57147385A (en) | Digital signal receiver for television | |
JPS553238A (en) | Reception frequency display system | |
GB2023961B (en) | Picture signal receiver/reproducer for facsimile | |
JPS538518A (en) | Tv picture receiver of index system | |
JPS5311507A (en) | Tv receiver | |
EP0053650A3 (en) | Monolithic integrated television receiver vertical deflection circuit with digital tangent-corrected line frequency signal processing | |
GB1336358A (en) | Circuit arrangement for tuning and indicating the tuning frequency for high frequency receivers with capacity-diode tuning | |
JPS51121212A (en) | The measuring system for the space frequency characteristic of a pictu re tube | |
JPS55130272A (en) | Deflecting circuit device | |
JPS5361208A (en) | Pll transmitter*receiver digital fine tuner | |
JPS566581A (en) | Television synchronizing broadcast device | |
JPS5291321A (en) | Television receiver |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 19990201 |