MX9705816A - Circuito de sintonizacion. - Google Patents
Circuito de sintonizacion.Info
- Publication number
- MX9705816A MX9705816A MX9705816A MX9705816A MX9705816A MX 9705816 A MX9705816 A MX 9705816A MX 9705816 A MX9705816 A MX 9705816A MX 9705816 A MX9705816 A MX 9705816A MX 9705816 A MX9705816 A MX 9705816A
- Authority
- MX
- Mexico
- Prior art keywords
- switching element
- capacitor
- series
- parallel
- connected circuit
- Prior art date
Links
Classifications
-
- 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
- H03J3/00—Continuous tuning
- H03J3/28—Continuous tuning of more than one resonant circuit simultaneously, the tuning frequencies of the circuits having a substantially constant difference throughout the tuning range
-
- 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
- H04N5/4446—IF amplifier circuits specially adapted for B&W TV
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Superheterodyne Receivers (AREA)
- Noise Elimination (AREA)
Abstract
Se provee un circuito de sintonizacion de television que incluye un circuito de multiples funciones que pone en práctica selectivamente ya sea un circuito de captura o un circuito de correccion que están formados por componentes compartidos; al circuito de multiples funciones está configurado selectivamente para proveer un circuito de captura que incluye un capacitor conectado en paralelo en un inductor a través de un elemento de conmutacion, y un circuito de conexion en el cual el inductor está conectado en serie con un segundo capacitor a través de un segundo elemento de conmutacion; cuando se selecciona un canal específico de la banda de VHF, el primer elemento de conmutacion se enciende y el circuito de captura se conecta en serie con una línea de transmision de señales, capturando así la banda adyacente de frecuencia más alta; cuando se selecciona un canal de la banda alta de VHF, el segundo elemento de conmutacion se enciende, y el circuito de conexion se conecta entre la línea de transmision de señales y la tierra, corrigiendo así la señal de la banda alta de VHF.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8-202027 | 1996-07-31 | ||
| JP20202796A JP3224991B2 (ja) | 1996-07-31 | 1996-07-31 | チューナ回路 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MX9705816A true MX9705816A (es) | 1998-08-30 |
| MXPA97005816A MXPA97005816A (es) | 1998-11-12 |
Family
ID=
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1051332A (ja) | 1998-02-20 |
| KR100292169B1 (ko) | 2001-07-12 |
| GB9714465D0 (en) | 1997-09-17 |
| GB2315935A (en) | 1998-02-11 |
| KR980012870A (ko) | 1998-04-30 |
| JP3224991B2 (ja) | 2001-11-05 |
| GB2315935B (en) | 2000-08-23 |
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