NL7607087A - Schakeling voor stille regeling. - Google Patents
Schakeling voor stille regeling.Info
- Publication number
- NL7607087A NL7607087A NL7607087A NL7607087A NL7607087A NL 7607087 A NL7607087 A NL 7607087A NL 7607087 A NL7607087 A NL 7607087A NL 7607087 A NL7607087 A NL 7607087A NL 7607087 A NL7607087 A NL 7607087A
- Authority
- NL
- Netherlands
- Prior art keywords
- switch
- silent control
- silent
- control
- Prior art date
Links
Classifications
-
- 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
- H03G3/344—Muting responsive to the amount of noise (noise squelch)
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
- H03D3/001—Details of arrangements applicable to more than one type of frequency demodulator
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Noise Elimination (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/591,533 US3979679A (en) | 1975-06-30 | 1975-06-30 | FM demodulator having squelch circuit using bucket brigade delay line |
Publications (1)
Publication Number | Publication Date |
---|---|
NL7607087A true NL7607087A (nl) | 1977-01-03 |
Family
ID=24366853
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL7607087A NL7607087A (nl) | 1975-06-30 | 1976-06-29 | Schakeling voor stille regeling. |
Country Status (10)
Country | Link |
---|---|
US (1) | US3979679A (nl) |
JP (1) | JPS527614A (nl) |
AU (1) | AU500961B2 (nl) |
BR (1) | BR7604257A (nl) |
CA (1) | CA1060101A (nl) |
DE (1) | DE2629404C2 (nl) |
FR (1) | FR2316790A1 (nl) |
GB (1) | GB1539568A (nl) |
IT (1) | IT1063780B (nl) |
NL (1) | NL7607087A (nl) |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6041493B2 (ja) * | 1977-03-16 | 1985-09-17 | ソニー株式会社 | 受信機 |
US4153878A (en) * | 1977-05-02 | 1979-05-08 | Motorola, Inc. | Sectored antenna communications receiver with squelch circuit |
US4220926A (en) * | 1977-08-26 | 1980-09-02 | Plessey Handel Und Investments Ag. | Noise detector employing plural delay circuits |
JPS5489214U (nl) * | 1977-12-06 | 1979-06-23 | ||
JPS54140468U (nl) * | 1978-03-23 | 1979-09-29 | ||
EP0018702A1 (en) * | 1979-04-30 | 1980-11-12 | Motorola, Inc. | Improvements in and relating to noise blanking circuitry in a radio receiver |
US4416024A (en) * | 1979-12-17 | 1983-11-15 | Sanyo Electric Co., Inc. | Distortion reducing circuit in FM receiver |
DE3008076C2 (de) * | 1980-03-03 | 1982-05-06 | Siemens AG, 1000 Berlin und 8000 München | Einrichtung zur Empfängerabschaltung bei kleinem Signal-Geräusch-Abstand für ein digital moduliertes Funksystem mit Frequenzmodulation |
US4359780A (en) * | 1980-08-06 | 1982-11-16 | Motorola, Inc. (Corporate Offices) | High speed squelch circuit |
JPS5761327A (en) * | 1980-09-30 | 1982-04-13 | Sony Corp | Periodicity pulse extraction circuit |
US4504966A (en) * | 1983-05-31 | 1985-03-12 | Harris Corporation | Stereo inhibitor for AM stereo receiver |
FR2547138B1 (fr) * | 1983-06-01 | 1985-07-12 | Trt Telecom Radio Electr | Dispositif de silencieux pour recepteur radio am/fm |
DE3326062A1 (de) * | 1983-07-20 | 1985-01-31 | Gerhard Prof. Dr.-Ing. 8012 Ottobrunn Flachenecker | Detektor zur anzeige von frequenzstoerhubspitzen |
US4661996A (en) * | 1984-04-25 | 1987-04-28 | Scandurra Aldo M | Method and apparatus for indicating radio frequency carrier loss in remotely controlled vehicles |
FR2618625B1 (fr) * | 1987-07-24 | 1989-11-24 | Labo Electronique Physique | Dispositif d'amelioration du decodage de signaux numeriques lors de transmissions en modulation de frequence |
US4907249A (en) * | 1988-07-20 | 1990-03-06 | Nebel Paul R | Automatic off/on circuit for monitoring data receiving and storing devices |
JPH0750861B2 (ja) * | 1988-08-10 | 1995-05-31 | パイオニア株式会社 | Fm受信機のパルス性ノイズ抑圧装置 |
JP2785401B2 (ja) * | 1989-12-19 | 1998-08-13 | ソニー株式会社 | Fm伝送装置 |
JPH03259622A (ja) * | 1990-03-09 | 1991-11-19 | Pioneer Electron Corp | ノイズ低減回路 |
US5490166A (en) * | 1990-10-01 | 1996-02-06 | Motorola, Inc. | Data muting method and apparatus using delay circuits for communication systems |
US5450622A (en) * | 1991-07-23 | 1995-09-12 | Ericsson Inc. | Method and apparatus for providing a very fast acting noise squelch control system for an RF radio receiver |
US5418821A (en) * | 1991-10-15 | 1995-05-23 | National Semiconductor Corporation | Method and apparatus for sample-data receiver squelch |
DE4226346A1 (de) * | 1992-08-08 | 1994-02-10 | Philips Patentverwaltung | Schaltungsanordnung zur Bestimmung der Feldstärke von FM-Sendern |
ATE311694T1 (de) * | 1994-03-07 | 2005-12-15 | Phonak Comm Ag | Miniaturempfänger zum empfangen eines hochfrequenten frequenz- oder phasenmodulierten signales |
US5583891A (en) * | 1994-10-31 | 1996-12-10 | Motorola, Inc. | Noise attenuation circuit for amplitude modulated radio and method therefor |
US5649321A (en) * | 1995-05-05 | 1997-07-15 | Motorola, Inc. | Method and apparatus for determining audio band energy of a squelch circuit input signal |
FR2744305B1 (fr) * | 1996-01-25 | 1998-03-27 | Groupe President Electronics | Circuit de blocage a reglage automatique pour recepteur radio |
DE19722385C2 (de) * | 1997-05-28 | 2002-11-07 | Grundig Ag | Verfahren zur Erkennung von Multipathstörungen beim FM-Rundfunkempfang und Schaltungsanordnung zur Durchführung des Verfahrens |
JP3473511B2 (ja) | 1999-07-22 | 2003-12-08 | 三菱電機株式会社 | マルチパスノイズ除去装置、オーディオ出力装置およびfm受信機 |
EP1843467B1 (en) * | 2006-04-07 | 2010-05-26 | Rohde & Schwarz GmbH & Co. KG | Method and apparatus for squelch gating a receiving signal |
EP2800279B1 (en) * | 2013-05-01 | 2018-04-25 | Analog Devices Global Unlimited Company | Demodulation of attenuated FM modulated audio signals |
DE112016003942T5 (de) * | 2015-08-31 | 2018-05-24 | Asahi Kasei Microdevices Corporation | Demodulator |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2756328A (en) * | 1951-06-27 | 1956-07-24 | Hartford Nat Bank & Trust Co | Audio-noise responsive squelch circuit |
US3049710A (en) * | 1958-01-02 | 1962-08-14 | Gen Electric | Continuous tone-controlled squelch system |
DE1616576B1 (de) * | 1962-03-29 | 1969-10-16 | Telefunken Patent | Funkeinrichtung mit mindestens zwei Sendern und mindestens einem insbesondere beweglichen Empfänger |
US3543165A (en) * | 1967-10-02 | 1970-11-24 | Motorola Inc | Transistor switch circuit responsive to change in direct current voltage |
US3568068A (en) * | 1967-10-13 | 1971-03-02 | Motorola Inc | Squelch circuit for frequency modulation receiver |
FR1585427A (nl) * | 1968-07-16 | 1970-01-23 | ||
US3588705A (en) * | 1969-11-12 | 1971-06-28 | Nasa | Frequency-modulation demodulator threshold extension device |
US3851253A (en) * | 1973-05-25 | 1974-11-26 | Motorola Inc | Automatically adjustable fm receiver squelch |
-
1975
- 1975-06-30 US US05/591,533 patent/US3979679A/en not_active Expired - Lifetime
-
1976
- 1976-06-21 GB GB25608/76A patent/GB1539568A/en not_active Expired
- 1976-06-29 AU AU15412/76A patent/AU500961B2/en not_active Expired
- 1976-06-29 NL NL7607087A patent/NL7607087A/nl not_active Application Discontinuation
- 1976-06-29 BR BR7604257A patent/BR7604257A/pt unknown
- 1976-06-29 CA CA255,987A patent/CA1060101A/en not_active Expired
- 1976-06-29 FR FR7619773A patent/FR2316790A1/fr not_active Withdrawn
- 1976-06-30 DE DE2629404A patent/DE2629404C2/de not_active Expired
- 1976-06-30 IT IT24843/76A patent/IT1063780B/it active
- 1976-06-30 JP JP51076598A patent/JPS527614A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
US3979679A (en) | 1976-09-07 |
GB1539568A (en) | 1979-01-31 |
AU1541276A (en) | 1978-01-05 |
DE2629404C2 (de) | 1982-06-09 |
DE2629404A1 (de) | 1977-01-27 |
JPS5651701B2 (nl) | 1981-12-07 |
FR2316790A1 (fr) | 1977-01-28 |
CA1060101A (en) | 1979-08-07 |
IT1063780B (it) | 1985-02-11 |
BR7604257A (pt) | 1977-04-05 |
AU500961B2 (en) | 1979-06-07 |
JPS527614A (en) | 1977-01-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BB | A search report has been drawn up | ||
BV | The patent application has lapsed |