FR1485076A - Détecteurs de signaux à seuil adaptable - Google Patents
Détecteurs de signaux à seuil adaptableInfo
- Publication number
- FR1485076A FR1485076A FR7907A FR06007907A FR1485076A FR 1485076 A FR1485076 A FR 1485076A FR 7907 A FR7907 A FR 7907A FR 06007907 A FR06007907 A FR 06007907A FR 1485076 A FR1485076 A FR 1485076A
- Authority
- FR
- France
- Prior art keywords
- threshold signal
- signal detectors
- adaptable threshold
- adaptable
- detectors
- 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
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D1/00—Demodulation of amplitude-modulated oscillations
- H03D1/14—Demodulation of amplitude-modulated oscillations by means of non-linear elements having more than two poles
- H03D1/18—Demodulation of amplitude-modulated oscillations by means of non-linear elements having more than two poles of semiconductor devices
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D1/00—Demodulation of amplitude-modulated oscillations
- H03D1/02—Details
- H03D1/04—Modifications of demodulators to reduce interference by undesired signals
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
- H03F3/45479—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/34—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise signals, e.g. squelch systems
-
- 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
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/12—Neutralising, balancing, or compensation arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Amplifiers (AREA)
- Measurement Of Current Or Voltage (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US468853A US3387222A (en) | 1965-07-01 | 1965-07-01 | Adaptive threshold signal detector with noise suppression |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1485076A true FR1485076A (fr) | 1967-06-16 |
Family
ID=23861513
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7907A Expired FR1485076A (fr) | 1965-07-01 | 1966-06-22 | Détecteurs de signaux à seuil adaptable |
Country Status (4)
Country | Link |
---|---|
US (1) | US3387222A (fr) |
DE (1) | DE1291791B (fr) |
FR (1) | FR1485076A (fr) |
GB (1) | GB1104832A (fr) |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3471792A (en) * | 1966-08-30 | 1969-10-07 | Weston Instruments Inc | Ac frequency to dc transducer |
US3478268A (en) * | 1967-06-16 | 1969-11-11 | Sylvania Electric Prod | Suppression of strong interfering signals in a radio receiver |
US3605018A (en) * | 1968-09-13 | 1971-09-14 | Sylvania Electric Prod | Interference suppression in a receiver by envelope variation modulation |
US3600589A (en) * | 1968-10-18 | 1971-08-17 | Ibm | Logarithmic sense amplifier having means for estalishing a predetermined output voltage level when the input signal is at a maximum |
US3548206A (en) * | 1969-01-14 | 1970-12-15 | Royco Instr Inc | Noise rejection circuits for particle counters |
GB1308078A (en) * | 1969-03-07 | 1973-02-21 | Licentia Gmbh | Data transmission systems |
US3581222A (en) * | 1969-03-19 | 1971-05-25 | Wilton Co | Linear voltage controlled attenuator |
US3613012A (en) * | 1969-10-13 | 1971-10-12 | Tracor | Adaptive blanking apparatus |
US3626166A (en) * | 1970-04-15 | 1971-12-07 | Robert H Berg | Particle pulse analyzing apparatus employing linear amplification and logarithmic conversion |
CA965159A (en) * | 1970-06-30 | 1975-03-25 | Bendix Corporation (The) | Half-bridge audio amplifier |
US3681696A (en) * | 1970-09-25 | 1972-08-01 | Quindar Electronics | Telemetering apparatus |
DE2059924C3 (de) * | 1970-12-05 | 1973-11-29 | Siemens Ag, 1000 Berlin U. 8000 Muenchen | Verfahren und Schaltungsanordnung zum Messen der Differenz zwischen als elektrische Spannungen oder Strome an fallenden Meßwerten |
US3702944A (en) * | 1971-02-24 | 1972-11-14 | Communications Satellite Corp | Pulse amplifier |
US3737790A (en) * | 1971-12-21 | 1973-06-05 | Us Navy | Noise-riding slicer |
US3764921A (en) * | 1972-10-27 | 1973-10-09 | Control Data Corp | Sample and hold circuit |
DE2362039C3 (de) * | 1973-12-13 | 1979-11-29 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Schaltungsanordnung zur Abtrennung von Störsignalen aus einem physiologischen elektrischen Meßsignal |
US3947636A (en) * | 1974-08-12 | 1976-03-30 | Edgar Albert D | Transient noise filter employing crosscorrelation to detect noise and autocorrelation to replace the noisey segment |
JPS5368901A (en) * | 1976-12-02 | 1978-06-19 | Clarion Co Ltd | Noise limiting system |
US4068176A (en) * | 1976-08-17 | 1978-01-10 | The Singer Company | Direct reading sinad meter |
US4056838A (en) * | 1976-09-20 | 1977-11-01 | Westinghouse Electric Corporation | In-band signal-to-noise ratio monitor for an FSK relaying system |
US4096399A (en) * | 1977-03-28 | 1978-06-20 | Bell Telephone Laboratories, Incorporated | Crosspoint bias circuit arrangement |
IT1088734B (it) * | 1977-12-06 | 1985-06-10 | Snam Progetti | Sistema automatico di sopressione del rumore di fondo su apparecchiature per la misura del battito in testa |
US4177430A (en) * | 1978-03-06 | 1979-12-04 | Rockwell International Corporation | Adaptive noise cancelling receiver |
US4181892A (en) * | 1978-05-12 | 1980-01-01 | The United States Of America As Represented By The Secretary Of The Navy | Sweeping noise blanker |
EP0013099B1 (fr) * | 1978-12-23 | 1982-02-10 | Fujitsu Limited | Dispositif à circuit intégré semi-conducteur comportant un générateur de tension de référence alimentant une pluralité de charges |
GB2227907B (en) * | 1979-12-01 | 1990-11-14 | Plessey Co Ltd | Improvements now relating to interference suppressors |
US4378603A (en) * | 1980-12-23 | 1983-03-29 | Motorola, Inc. | Radiotelephone with hands-free operation |
US4400584A (en) * | 1982-04-05 | 1983-08-23 | Motorola, Inc. | Speakerphone for radio and, landline telephones |
DE3324405A1 (de) * | 1983-07-06 | 1985-01-17 | Siemens AG, 1000 Berlin und 8000 München | Einrichtung zur unterdrueckung von stoersignalen |
US4707653A (en) * | 1985-10-17 | 1987-11-17 | Ampex Corporation | Frequency measurement circuit |
US4810959A (en) * | 1988-02-16 | 1989-03-07 | Grumman Aerospace Corporation | Method of improving signal-to-noise ratio of detected random pulses |
US4992675A (en) * | 1989-03-30 | 1991-02-12 | Motorola, Inc. | Adaptive threshold control circuit |
BRPI0610530A2 (pt) * | 2005-04-04 | 2010-06-29 | That Corp | sistema de controle e de estimativa de qualidade de sinal |
JP4277848B2 (ja) * | 2005-11-21 | 2009-06-10 | トヨタ自動車株式会社 | 車載受信装置 |
EP2413661B1 (fr) * | 2010-07-30 | 2013-09-18 | Nxp B.V. | Commande à intensité réglable pour lampe à DEL |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2343115A (en) * | 1941-04-05 | 1944-02-29 | Galvin Mfg Corp | Radio receiver circuit |
DE1113717B (de) * | 1958-07-10 | 1961-09-14 | Siemens Ag | Schaltungsanordnung zur Rauschunterdrueckung |
US3095512A (en) * | 1960-10-25 | 1963-06-25 | William R Little | Low level semiconductor switch having a voltage regulating zener diode in a feedbackpath |
US3191124A (en) * | 1961-10-30 | 1965-06-22 | Avco Corp | Amplitude noise control gate |
US3130266A (en) * | 1962-08-24 | 1964-04-21 | Bell Telephone Labor Inc | Differential demodulator |
-
1965
- 1965-07-01 US US468853A patent/US3387222A/en not_active Expired - Lifetime
-
1966
- 1966-03-14 DE DEJ30320A patent/DE1291791B/de not_active Withdrawn
- 1966-06-22 FR FR7907A patent/FR1485076A/fr not_active Expired
- 1966-06-29 GB GB29151/66A patent/GB1104832A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3387222A (en) | 1968-06-04 |
GB1104832A (en) | 1968-02-28 |
DE1291791B (de) | 1969-04-03 |
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