MX168451B - Radio receptor mejorado - Google Patents
Radio receptor mejoradoInfo
- Publication number
- MX168451B MX168451B MX010679A MX1067988A MX168451B MX 168451 B MX168451 B MX 168451B MX 010679 A MX010679 A MX 010679A MX 1067988 A MX1067988 A MX 1067988A MX 168451 B MX168451 B MX 168451B
- Authority
- MX
- Mexico
- Prior art keywords
- signal
- components
- frequency
- intermediate frequency
- input
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
-
- 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
- H03J7/08—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 varactors, i.e. voltage variable reactive diodes
- H03J7/10—Modification of automatic frequency control sensitivity or linearising automatic frequency control operation
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D1/00—Demodulation of amplitude-modulated oscillations
- H03D1/22—Homodyne or synchrodyne circuits
- H03D1/2209—Decoders for simultaneous demodulation and decoding of signals composed of a sum-signal and a suppressed carrier, amplitude modulated by a difference signal, e.g. stereocoders
- H03D1/2236—Decoders for simultaneous demodulation and decoding of signals composed of a sum-signal and a suppressed carrier, amplitude modulated by a difference signal, e.g. stereocoders using a phase locked loop
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Superheterodyne Receivers (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Circuits Of Receivers In General (AREA)
Abstract
La presente invención se refiere a un receptor de radio mejorado que presenta: componentes de entrada para recibir una señal de entrada, que consiste de una primera señal portadora, que tiene una amplitud de señal de información ahí modulada; componentes de frecuencia intermedia para recibir la señal de entrada y convertirla en una señal de entrada de frecuencia intermedia, formada de una segunda señal portadora con una frecuencia diferente que la primera señal portadora y con la amplitud de señal de información modulada en ella; y componentes demoduladores para recibir la señal de frecuencia intermedia y demodularla, para proporcionar una señal demodulada, que consiste por lo menos parcialmente, de la señal de información, caracterizado porque, los componentes de frecuencia intermedia además incluyen: componentes de señal de referencia, para recibir una señal de control y para proporcionar una señal de referencia, con una frecuencia y fase determinadas por lo menos parcialmente por la señal de control; y componentes de translación de frecuencia para recibir la señal de referencia y la señal de entrada y formar una señal resultante con una frecuencia y fase que corresponde a la primera señal portadora transladada por la señal de referencia, la señal resultante contiene la señal de frecuencia intermedia; y los componentes de demodulación, incluyen además, componentes de procesamiento tangencial para responder, cuando menos parcialmente, a la señal demodulada, proporcionando una señal de control a los componentes de señal de referencia, la señal de control varía como una función tangente de por lo menos, una parte de la señal demodulada.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/038,563 US4782532A (en) | 1987-04-15 | 1987-04-15 | Automatic IF tangent lock control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| MX168451B true MX168451B (es) | 1993-05-25 |
Family
ID=21900649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX010679A MX168451B (es) | 1987-04-15 | 1988-03-07 | Radio receptor mejorado |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US4782532A (es) |
| JP (1) | JPS63263926A (es) |
| KR (1) | KR960003836B1 (es) |
| CN (1) | CN1015854B (es) |
| AU (1) | AU594286B2 (es) |
| BR (1) | BR8801268A (es) |
| CA (1) | CA1296776C (es) |
| GB (1) | GB2203908B (es) |
| HK (1) | HK11094A (es) |
| IN (1) | IN170411B (es) |
| MX (1) | MX168451B (es) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5222144A (en) * | 1991-10-28 | 1993-06-22 | Ford Motor Company | Digital quadrature radio receiver with two-step processing |
| IL132161A (en) | 1999-09-30 | 2002-09-12 | Netmor Ltd | Digital coherent envelope demodulation of fdma signals |
| EP2725712A1 (fr) * | 2012-10-26 | 2014-04-30 | EM Microelectronic-Marin SA | Système récepteur amélioré |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4583244A (en) * | 1984-06-21 | 1986-04-15 | Motorola, Inc. | Automatic frequency control for local oscillator used with an AM stereo decoder |
| CA1238953A (en) * | 1985-02-01 | 1988-07-05 | Nec Corporation | Mixer circuit |
-
1987
- 1987-04-15 US US07/038,563 patent/US4782532A/en not_active Expired - Lifetime
-
1988
- 1988-01-21 IN IN44/MAS/88A patent/IN170411B/en unknown
- 1988-01-22 CA CA000557148A patent/CA1296776C/en not_active Expired - Lifetime
- 1988-02-08 AU AU11406/88A patent/AU594286B2/en not_active Ceased
- 1988-02-18 GB GB8803777A patent/GB2203908B/en not_active Expired - Lifetime
- 1988-03-05 CN CN88101130A patent/CN1015854B/zh not_active Expired
- 1988-03-07 MX MX010679A patent/MX168451B/es unknown
- 1988-03-21 BR BR8801268A patent/BR8801268A/pt not_active IP Right Cessation
- 1988-04-12 JP JP63088344A patent/JPS63263926A/ja active Granted
- 1988-04-14 KR KR1019880004236A patent/KR960003836B1/ko not_active IP Right Cessation
-
1994
- 1994-02-02 HK HK110/94A patent/HK11094A/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CN1015854B (zh) | 1992-03-11 |
| BR8801268A (pt) | 1988-10-25 |
| KR960003836B1 (ko) | 1996-03-22 |
| CA1296776C (en) | 1992-03-03 |
| JPS63263926A (ja) | 1988-10-31 |
| GB8803777D0 (en) | 1988-03-16 |
| US4782532A (en) | 1988-11-01 |
| IN170411B (es) | 1992-03-21 |
| AU1140688A (en) | 1988-10-20 |
| HK11094A (en) | 1994-02-09 |
| AU594286B2 (en) | 1990-03-01 |
| CN88101130A (zh) | 1988-10-26 |
| GB2203908B (en) | 1991-10-23 |
| GB2203908A (en) | 1988-10-26 |
| KR880013332A (ko) | 1988-11-30 |
| JPH0580177B2 (es) | 1993-11-08 |
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