ES2127136B1 - AUTOMATIC CONTROL SYSTEM FOR VERY LOW CONSUMPTION GAIN. - Google Patents
AUTOMATIC CONTROL SYSTEM FOR VERY LOW CONSUMPTION GAIN.Info
- Publication number
- ES2127136B1 ES2127136B1 ES9700908A ES9700908A ES2127136B1 ES 2127136 B1 ES2127136 B1 ES 2127136B1 ES 9700908 A ES9700908 A ES 9700908A ES 9700908 A ES9700908 A ES 9700908A ES 2127136 B1 ES2127136 B1 ES 2127136B1
- Authority
- ES
- Spain
- Prior art keywords
- gain control
- low consumption
- control system
- automatic gain
- filter
- 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 - Fee Related
Links
Abstract
Sistema de control automático de ganancia de muy bajo consumo. Sistema de control automático de ganancia basado en la utilización de un filtro o circuito resonante desintonizado de forma controlada dentro de un lazo de realimentación. El sistema presentado se caracteriza porque permite el control del nivel de una señal de Radio Frecuencia mediante el cambio de la frecuencia de paso de un filtro de paso banda. Además, la frecuencia de paso del filtro se puede controlar mediante una magnitud eléctrica, generalmente una tensión. Por ello se realiza la función de control de ganancia con un consumo extremadamente bajo. El sistema, además, eleva muy poco la cifra de ruido del receptor. Este sistema permite realizar el control automático de ganancia en receptores de radio frecuencia que deban presentar como característica principal un consumo de potencia muy bajo, como son los equipos portátiles para radiobúsqueda, telefonía personal, telemando y similares.Very low consumption automatic gain control system. Automatic gain control system based on the use of a controlled detuned filter or resonant circuit within a feedback loop. The presented system is characterized in that it allows the control of the level of a Radio Frequency signal by changing the pass frequency of a band pass filter. In addition, the filter's passing frequency can be controlled by an electrical quantity, usually a voltage. Therefore, the gain control function is performed with extremely low consumption. The system, in addition, raises very little the noise figure of the receiver. This system allows automatic gain control to be carried out on radio frequency receivers that must have very low power consumption as their main characteristic, such as portable equipment for radio paging, personal telephony, remote control and the like.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES9700908A ES2127136B1 (en) | 1997-04-28 | 1997-04-28 | AUTOMATIC CONTROL SYSTEM FOR VERY LOW CONSUMPTION GAIN. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES9700908A ES2127136B1 (en) | 1997-04-28 | 1997-04-28 | AUTOMATIC CONTROL SYSTEM FOR VERY LOW CONSUMPTION GAIN. |
Publications (2)
Publication Number | Publication Date |
---|---|
ES2127136A1 ES2127136A1 (en) | 1999-04-01 |
ES2127136B1 true ES2127136B1 (en) | 1999-12-01 |
Family
ID=8299111
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES9700908A Expired - Fee Related ES2127136B1 (en) | 1997-04-28 | 1997-04-28 | AUTOMATIC CONTROL SYSTEM FOR VERY LOW CONSUMPTION GAIN. |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES2127136B1 (en) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS561608A (en) * | 1979-06-18 | 1981-01-09 | Fujitsu Ltd | Multistep agc control system for automatic equalizer |
JP2881770B2 (en) * | 1988-06-21 | 1999-04-12 | ソニー株式会社 | AGC circuit |
DE69020538T2 (en) * | 1989-07-15 | 1996-02-22 | Philips Electronics Nv | AUTOMATIC LEVEL CONTROL. |
-
1997
- 1997-04-28 ES ES9700908A patent/ES2127136B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ES2127136A1 (en) | 1999-04-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EC2A | Search report published |
Date of ref document: 19990401 Kind code of ref document: A1 Effective date: 19990401 |
|
FD2A | Announcement of lapse in spain |
Effective date: 20170804 |