ES475811A1 - Procedimiento para la vigilancia automatica de funciones de un receptor de radio - Google Patents
Procedimiento para la vigilancia automatica de funciones de un receptor de radioInfo
- Publication number
- ES475811A1 ES475811A1 ES475811A ES475811A ES475811A1 ES 475811 A1 ES475811 A1 ES 475811A1 ES 475811 A ES475811 A ES 475811A ES 475811 A ES475811 A ES 475811A ES 475811 A1 ES475811 A1 ES 475811A1
- Authority
- ES
- Spain
- Prior art keywords
- stage
- signal
- output
- input
- reception
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Noise Elimination (AREA)
Abstract
Procedimiento para la vigilancia automática de funciones de un receptor de ario, en especial de su sensibilidad para la AF y su nivel de salida de BF, en pausas de recepción, aplicándose a la entrada de AF una señal de prueba de AF y realizándose una valoración de la perturbación después de rectificación de la señal que prueba en la salida del paso de BF, caracterizado porque un impulso de señal de ruido de banda ancha es aplicado a la entrada de AF, proque una priemra señal parcial del impulso de la señal de ruido es derivada en el paso de FI, rectificada y comparada con un primer valor umbral situado entre las amplitudes de la señal parcial que aparece en el caso de sensibilidad a AF perturbada y sin perturbar, porque una segunda señal y parcial del impulso de la señal de ruido es tomada después del paso de BF, rectificada y comparada con un segundo valor umbral situado entre las amplitudes de la señal parcial que aparece en el caso de nivel de salida de BF perturbado y sin perturbar, y por que las señales parciales son tratadas digitalmente después de la comparación con los valores umbral de modo que mientras dura el impulso de la señal de ruido se emita una señal de perturbación al faltar una de las señales parciales o ambas.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2755221A DE2755221C2 (de) | 1977-12-10 | 1977-12-10 | Verfahren zur selbsttätigen Überwachung der HF-Empfindlichkeit und des NF-Ausgangspegels eines Funkempfängers und Schaltungsanordnung zur Durchführung des Verfahrens |
Publications (1)
Publication Number | Publication Date |
---|---|
ES475811A1 true ES475811A1 (es) | 1979-11-16 |
Family
ID=6025880
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES475811A Expired ES475811A1 (es) | 1977-12-10 | 1978-12-07 | Procedimiento para la vigilancia automatica de funciones de un receptor de radio |
Country Status (14)
Country | Link |
---|---|
US (1) | US4322857A (es) |
AT (1) | AT375510B (es) |
AU (1) | AU523348B2 (es) |
CH (1) | CH638936A5 (es) |
DE (1) | DE2755221C2 (es) |
DK (1) | DK150838C (es) |
ES (1) | ES475811A1 (es) |
FR (1) | FR2411515A1 (es) |
GB (1) | GB2011763B (es) |
IT (1) | IT1101492B (es) |
NL (1) | NL7812054A (es) |
NO (1) | NO147935C (es) |
SE (1) | SE443269B (es) |
YU (1) | YU287378A (es) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5854682B2 (ja) * | 1978-04-17 | 1983-12-06 | 富士通テン株式会社 | 中間周波検出回路 |
US4317214A (en) * | 1980-07-14 | 1982-02-23 | Attinello John S | Apparatus for simulating interference transmissions |
DE3138650A1 (de) * | 1981-09-29 | 1983-04-14 | TE KA DE Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg | Verfahren zur ueberwachung einer funkempfangsanlage |
DE3148336C2 (de) * | 1981-12-07 | 1985-03-21 | ANT Nachrichtentechnik GmbH, 7150 Backnang | Schaltungsanordnung zum Auswerten eines in einer Nachrichtenempfangsanlage auftretenden Rauschsignals |
US4625332A (en) * | 1985-04-01 | 1986-11-25 | The United States Of America As Represented By The Secretary Of The Navy | Programmable time varying attenuator |
JPS6235727A (ja) * | 1985-08-09 | 1987-02-16 | Nec Corp | 自己診断機能を有する受信機 |
US4742561A (en) * | 1985-09-10 | 1988-05-03 | Home Box Office, Inc. | Apparatus for generating signals useful for testing the sensitivity of microwave receiving equipment |
US4972511A (en) * | 1988-12-05 | 1990-11-20 | The United States Of America As Represented By The Secretary Of The Navy | Receiver test apparatus with test message injector |
US5450624A (en) * | 1993-01-07 | 1995-09-12 | Ford Motor Company | Method and apparatus for diagnosing amp to speaker connections |
US5815584A (en) * | 1996-11-08 | 1998-09-29 | Ford Motor Company | Automatic detection of shorted loudspeakers in automotive audio systems |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1039110B (de) * | 1957-03-15 | 1958-09-18 | Deutsche Bundespost | Alarmeinrichtung zum Signalisieren eines Fehlers in einem Sprechfunkempfaenger fuer Frequenzmodulation |
DE1466552B2 (de) * | 1965-12-11 | 1971-03-18 | Tekade Feiten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg | Ueberwachungsanordnung fuer einen funkempfaenger |
NL7105272A (es) * | 1971-04-20 | 1972-10-24 | ||
US3750177A (en) * | 1971-05-18 | 1973-07-31 | Collins Radio Co | Instrument landing system receiver monitor |
US3737781A (en) * | 1971-09-15 | 1973-06-05 | Nasa | Signal-to-noise ratio determination circuit |
JPS5321241B2 (es) * | 1972-07-08 | 1978-07-01 | ||
DE2319087C2 (de) * | 1973-04-16 | 1974-11-07 | Battelle-Institut E.V., 6000 Frankfurt | Verfahren zum Überprüfen von Funk-Empfangsanlagen |
US3845484A (en) * | 1973-06-12 | 1974-10-29 | Bendix Corp | Signal generator for testing vor navigation receivers |
US4125809A (en) * | 1977-11-09 | 1978-11-14 | The United States Of America As Represented By The Secretary Of The Navy | Digital C/kT meter |
-
1977
- 1977-12-10 DE DE2755221A patent/DE2755221C2/de not_active Expired
-
1978
- 1978-12-06 IT IT30612/78A patent/IT1101492B/it active
- 1978-12-07 AT AT0877978A patent/AT375510B/de not_active IP Right Cessation
- 1978-12-07 YU YU02873/78A patent/YU287378A/xx unknown
- 1978-12-07 ES ES475811A patent/ES475811A1/es not_active Expired
- 1978-12-08 SE SE7812648A patent/SE443269B/sv not_active IP Right Cessation
- 1978-12-08 CH CH1256578A patent/CH638936A5/de not_active IP Right Cessation
- 1978-12-08 FR FR7835151A patent/FR2411515A1/fr active Granted
- 1978-12-08 NO NO784142A patent/NO147935C/no unknown
- 1978-12-08 DK DK555378A patent/DK150838C/da not_active IP Right Cessation
- 1978-12-11 US US05/970,123 patent/US4322857A/en not_active Expired - Lifetime
- 1978-12-11 GB GB7847963A patent/GB2011763B/en not_active Expired
- 1978-12-11 NL NL7812054A patent/NL7812054A/xx not_active Application Discontinuation
- 1978-12-11 AU AU42382/78A patent/AU523348B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
SE7812648L (sv) | 1979-06-11 |
IT1101492B (it) | 1985-09-28 |
FR2411515A1 (fr) | 1979-07-06 |
AT375510B (de) | 1984-08-10 |
CH638936A5 (de) | 1983-10-14 |
SE443269B (sv) | 1986-02-17 |
DK555378A (da) | 1979-06-11 |
AU4238278A (en) | 1979-06-14 |
DK150838C (da) | 1988-06-06 |
AU523348B2 (en) | 1982-07-22 |
YU287378A (en) | 1983-04-30 |
DE2755221A1 (de) | 1979-06-13 |
FR2411515B1 (es) | 1984-01-27 |
NL7812054A (nl) | 1979-06-12 |
NO784142L (no) | 1979-06-12 |
ATA877978A (de) | 1983-12-15 |
US4322857A (en) | 1982-03-30 |
NO147935C (no) | 1983-07-06 |
NO147935B (no) | 1983-03-28 |
GB2011763B (en) | 1982-04-28 |
DK150838B (da) | 1987-06-29 |
IT7830612A0 (it) | 1978-12-06 |
DE2755221C2 (de) | 1985-05-30 |
GB2011763A (en) | 1979-07-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 20000601 |