ES8200805A1 - Un circuito modulador de amplitud - Google Patents
Un circuito modulador de amplitudInfo
- Publication number
- ES8200805A1 ES8200805A1 ES497873A ES497873A ES8200805A1 ES 8200805 A1 ES8200805 A1 ES 8200805A1 ES 497873 A ES497873 A ES 497873A ES 497873 A ES497873 A ES 497873A ES 8200805 A1 ES8200805 A1 ES 8200805A1
- Authority
- ES
- Spain
- Prior art keywords
- signal
- modulator
- modulating
- video signal
- circuit
- 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
- 238000005070 sampling Methods 0.000 abstract 3
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/38—Transmitter circuitry for the transmission of television signals according to analogue transmission standards
- H04N5/40—Modulation circuits
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Processing Of Color Television Signals (AREA)
- Amplitude Modulation (AREA)
Abstract
CIRCUITO MODULADOR DE AMPLITUD DE UNA SEÑAL DE PROTADORA CON UNA SEÑAL DE VIDEO QUE TIENE INTERVALOS DE SEÑAL DE REFERENCIA Y APARECE PERIODICAMENTE. COMPRENDE UN MODULADOR (1) DOTADO DE UN TERMINAL (2) DE ENTRADA DE PORTADORA (SC), UN TERMINAL (3) DE ENTRADA DE MODULACION PARA RECIBIR LA SEÑAL DE VIDEO (D) Y UN TERMINAL DE SALIDA (4) PARA SUSMINISTRAR LA SEÑAL MODULADA EN AMPLITUD. INCLUYE ADEMAS UN BUCLE DE CONTROL ACOPLADO AL TERMINAL DE SALIDA (4) DEL MODULADOR Y CONSTITUIDO POR UN PRIMER CIRCUITO DE MUESTREO (14, 15, 16), QUE ESTA ACTIVO DURANTE LOS INTERVALOS DE SEÑAL DE REFERENCIA; DICHO BUCLE DE CONTROL GENERA UNA SEÑAL DE OMPENSACION EN CORRIENTE CONTINUA PARA SUMARLA A LA SEÑAL DE VIDEO; MIENTRAS ESTA ACTIVADO EL CIRCUITO DE MUESTREO, LA SEÑAL EN EL TEMINAL DE SALIDA DEL MODULADOR ES INDEPENDIENTE DE LA SEÑAL EN EL TEMINAL DE ENTRADA DE PORTADORA. CONSTA TAMBIEN DE UN PASO SUMADOR (17) CONECTADO AL TERMINAL DE SALIDA Y DE UN SEGUNDO BLOQUE DE CONTROL QUE INCLUYE UN SEGUNDO CIRCUITO DE MUESTREO (14, 22, 23), QUE ACTUA DE LA MISMA MANERA QUE EL PRIMER CIRCUITO DE MUESTREO.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7909177A NL7909177A (nl) | 1979-12-20 | 1979-12-20 | Amplitudemodulatorschakeling voor het moduleren van een videosignaal op een draaggolfsignaal. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES8200805A1 true ES8200805A1 (es) | 1981-11-01 |
| ES497873A0 ES497873A0 (es) | 1981-11-01 |
Family
ID=19834352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES497873A Granted ES497873A0 (es) | 1979-12-20 | 1980-12-18 | Un circuito modulador de amplitud |
Country Status (20)
| Country | Link |
|---|---|
| US (1) | US4354200A (es) |
| JP (1) | JPS5925548B2 (es) |
| AU (1) | AU537558B2 (es) |
| BE (1) | BE886753A (es) |
| BR (1) | BR8008264A (es) |
| DD (1) | DD155573A5 (es) |
| DE (1) | DE3046460C2 (es) |
| ES (1) | ES497873A0 (es) |
| FI (1) | FI803938L (es) |
| FR (1) | FR2472324A1 (es) |
| GB (1) | GB2067046B (es) |
| HK (1) | HK75284A (es) |
| HU (1) | HU181776B (es) |
| IT (1) | IT1129450B (es) |
| MX (1) | MX148028A (es) |
| NL (1) | NL7909177A (es) |
| PL (1) | PL228530A1 (es) |
| SE (2) | SE448047B (es) |
| SG (1) | SG42584G (es) |
| ZA (1) | ZA807334B (es) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4393395A (en) * | 1981-01-26 | 1983-07-12 | Rca Corporation | Balanced modulator with feedback stabilization of carrier balance |
| NL8201341A (nl) * | 1982-03-31 | 1983-10-17 | Philips Nv | Videosignaalvermenigvuldigingsschakeling. |
| US4546387A (en) * | 1982-11-04 | 1985-10-08 | General Instrument Corporation | Circuit for providing accurately spaced video and sound carriers |
| US5831679A (en) * | 1991-06-14 | 1998-11-03 | Wavephore, Inc. | Network for retrieval and video transmission of information |
| US5617148A (en) * | 1991-06-14 | 1997-04-01 | Wavephore, Inc. | Filter by-pass for transmitting an additional signal with a video signal |
| US5559559A (en) * | 1991-06-14 | 1996-09-24 | Wavephore, Inc. | Transmitting a secondary signal with dynamic injection level control |
| US5387941A (en) * | 1991-06-14 | 1995-02-07 | Wavephore, Inc. | Data with video transmitter |
| US5410360A (en) * | 1991-06-14 | 1995-04-25 | Wavephore, Inc. | Timing control for injecting a burst and data into a video signal |
| US5327237A (en) * | 1991-06-14 | 1994-07-05 | Wavephore, Inc. | Transmitting data with video |
| GB9709498D0 (en) * | 1997-05-09 | 1997-07-02 | Switched Reluctance Drives Ltd | Transducer offset compensation |
| US7719241B2 (en) * | 2006-03-06 | 2010-05-18 | Analog Devices, Inc. | AC-coupled equivalent series resistance |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH282896A (fr) * | 1948-08-10 | 1952-05-15 | Marconi Wireless Telegraph Co | Emmeteur de télévision. |
| US2793348A (en) * | 1952-01-14 | 1957-05-21 | Rca Corp | Modulation system for color phase alternation |
| NZ152611A (es) * | 1967-05-24 | |||
| US3721755A (en) * | 1971-03-29 | 1973-03-20 | Telemation | Color television encoder modulator |
-
1979
- 1979-12-20 NL NL7909177A patent/NL7909177A/nl not_active Application Discontinuation
-
1980
- 1980-11-24 ZA ZA00807334A patent/ZA807334B/xx unknown
- 1980-12-10 DE DE3046460A patent/DE3046460C2/de not_active Expired
- 1980-12-10 US US06/214,941 patent/US4354200A/en not_active Expired - Lifetime
- 1980-12-11 MX MX185170A patent/MX148028A/es unknown
- 1980-12-16 HU HU803014A patent/HU181776B/hu unknown
- 1980-12-17 IT IT68927/80A patent/IT1129450B/it active
- 1980-12-17 GB GB8040424A patent/GB2067046B/en not_active Expired
- 1980-12-17 AU AU65446/80A patent/AU537558B2/en not_active Ceased
- 1980-12-17 FI FI803938A patent/FI803938L/fi not_active Application Discontinuation
- 1980-12-17 SE SE8008859A patent/SE448047B/sv not_active IP Right Cessation
- 1980-12-17 BR BR8008264A patent/BR8008264A/pt unknown
- 1980-12-17 SE SE8008859D patent/SE8008859L/xx not_active Application Discontinuation
- 1980-12-17 FR FR8026789A patent/FR2472324A1/fr active Granted
- 1980-12-17 PL PL22853080A patent/PL228530A1/xx unknown
- 1980-12-18 BE BE0/203240A patent/BE886753A/fr not_active IP Right Cessation
- 1980-12-18 ES ES497873A patent/ES497873A0/es active Granted
- 1980-12-19 DD DD80226367A patent/DD155573A5/de unknown
- 1980-12-19 JP JP55180292A patent/JPS5925548B2/ja not_active Expired
-
1984
- 1984-06-09 SG SG425/84A patent/SG42584G/en unknown
- 1984-10-04 HK HK752/84A patent/HK75284A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE3046460A1 (de) | 1981-09-17 |
| FR2472324A1 (fr) | 1981-06-26 |
| IT8068927A0 (it) | 1980-12-17 |
| AU6544680A (en) | 1981-06-25 |
| IT1129450B (it) | 1986-06-04 |
| US4354200A (en) | 1982-10-12 |
| SE448047B (sv) | 1987-01-12 |
| SE8008859L (sv) | 1981-06-21 |
| SG42584G (en) | 1985-02-08 |
| ZA807334B (en) | 1982-07-28 |
| BR8008264A (pt) | 1981-07-07 |
| JPS5925548B2 (ja) | 1984-06-19 |
| DD155573A5 (de) | 1982-06-16 |
| FI803938L (fi) | 1981-06-21 |
| JPS5698985A (en) | 1981-08-08 |
| GB2067046B (en) | 1984-03-14 |
| MX148028A (es) | 1983-03-01 |
| ES497873A0 (es) | 1981-11-01 |
| FR2472324B1 (es) | 1983-02-18 |
| HK75284A (en) | 1984-10-12 |
| HU181776B (en) | 1983-11-28 |
| BE886753A (fr) | 1981-06-18 |
| DE3046460C2 (de) | 1982-09-30 |
| AU537558B2 (en) | 1984-06-28 |
| PL228530A1 (es) | 1981-08-21 |
| NL7909177A (nl) | 1981-07-16 |
| GB2067046A (en) | 1981-07-15 |
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