SE369995B - - Google Patents
Info
- Publication number
- SE369995B SE369995B SE01292/71A SE129271A SE369995B SE 369995 B SE369995 B SE 369995B SE 01292/71 A SE01292/71 A SE 01292/71A SE 129271 A SE129271 A SE 129271A SE 369995 B SE369995 B SE 369995B
- Authority
- SE
- Sweden
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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5515/70A GB1237517A (en) | 1970-02-05 | 1970-02-05 | Muting arrangement for a communication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE369995B true SE369995B (de) | 1974-09-23 |
Family
ID=9797666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE01292/71A SE369995B (de) | 1970-02-05 | 1971-02-02 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3728634A (de) |
| JP (1) | JPS5537134B1 (de) |
| BE (1) | BE762491A (de) |
| CA (1) | CA950972A (de) |
| DE (1) | DE2104397A1 (de) |
| FR (1) | FR2079253B1 (de) |
| GB (1) | GB1237517A (de) |
| NL (1) | NL7101262A (de) |
| SE (1) | SE369995B (de) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5230309A (en) * | 1975-09-03 | 1977-03-08 | Nippon Gakki Seizo Kk | Tuner |
| US4025853A (en) * | 1976-02-12 | 1977-05-24 | Bell Telephone Laboratories, Incorporated | Method and apparatus for radio system cochannel interference suppression |
| US4008439A (en) * | 1976-02-20 | 1977-02-15 | Bell Telephone Laboratories, Incorporated | Processing of two noise contaminated, substantially identical signals to improve signal-to-noise ratio |
| DE2628997C3 (de) * | 1976-06-28 | 1978-11-30 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | System zum Empfang frequenzmodulierter digitaler Nachrichtensignale |
| DE2905471B1 (de) * | 1979-02-13 | 1980-02-21 | Siemens Ag | System zum Empfang frequenzmodulierter digitaler Nachrichtensignale |
| JPS5416108A (en) * | 1977-07-07 | 1979-02-06 | Pioneer Electronic Corp | Receiver antenna input circuit |
| US4310722A (en) * | 1978-11-09 | 1982-01-12 | Bell Telephone Laboratories, Incorporated | Mobile radiotelephone station two-way ranging system |
| US4398304A (en) * | 1979-04-30 | 1983-08-09 | Masco Corporation | Scanning radio receiver including detector circuit for AM and FM reception |
| 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 |
| CA1196966A (en) * | 1982-03-23 | 1985-11-19 | Kouzou Kage | Interference wave detection circuit for use in radio receiver |
| FR2547138B1 (fr) * | 1983-06-01 | 1985-07-12 | Trt Telecom Radio Electr | Dispositif de silencieux pour recepteur radio am/fm |
| JPS60117081U (ja) * | 1984-01-12 | 1985-08-07 | 株式会社貝印刃物開発センター | 調理用具等における中子と柄との間の着脱構造 |
| US4674121A (en) * | 1984-09-18 | 1987-06-16 | Nec Corporation | Circuit for detecting the level of noise in FM signal for use in AM/FM receiver |
| DE102007037105A1 (de) * | 2007-05-09 | 2008-11-13 | Rohde & Schwarz Gmbh & Co. Kg | Verfahren und Vorrichtung zur Detektion von simultaner Doppelaussendung von AM-Signalen |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US437937A (en) * | 1890-10-07 | To james h | ||
| GB808461A (en) * | 1957-03-04 | 1959-02-04 | Standard Telephones Cables Ltd | Improvements in or relating to radio telegraph systems |
| DE1616576B1 (de) * | 1962-03-29 | 1969-10-16 | Telefunken Patent | Funkeinrichtung mit mindestens zwei Sendern und mindestens einem insbesondere beweglichen Empfänger |
| US3334187A (en) * | 1965-05-24 | 1967-08-01 | Motorola Inc | Search tuning apparatus for am, fm and fm stereo |
| US3482174A (en) * | 1966-06-17 | 1969-12-02 | Bendix Corp | Pulse sample type demodulator including feedback stabilizing means |
| US3437937A (en) * | 1966-08-08 | 1969-04-08 | Wilcox Electric Co Inc | Digital squelch system |
| JPS449052Y1 (de) * | 1966-09-26 | 1969-04-14 | ||
| US3543165A (en) * | 1967-10-02 | 1970-11-24 | Motorola Inc | Transistor switch circuit responsive to change in direct current voltage |
| US3550012A (en) * | 1968-09-10 | 1970-12-22 | Tram Corp | Squelch system |
| US3569840A (en) * | 1968-10-04 | 1971-03-09 | Collins Radio Co Of Canada Ltd | Carrier squelch scheme |
-
1970
- 1970-02-05 GB GB5515/70A patent/GB1237517A/en not_active Expired
-
1971
- 1971-01-28 US US00110453A patent/US3728634A/en not_active Expired - Lifetime
- 1971-01-30 NL NL7101262A patent/NL7101262A/xx unknown
- 1971-01-30 DE DE19712104397 patent/DE2104397A1/de active Pending
- 1971-02-02 SE SE01292/71A patent/SE369995B/xx unknown
- 1971-02-03 CA CA104,359,A patent/CA950972A/en not_active Expired
- 1971-02-03 FR FR7103581A patent/FR2079253B1/fr not_active Expired
- 1971-02-03 BE BE762491A patent/BE762491A/xx unknown
- 1971-02-05 JP JP449571A patent/JPS5537134B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2079253A1 (de) | 1971-11-12 |
| CA950972A (en) | 1974-07-09 |
| JPS5537134B1 (de) | 1980-09-26 |
| BE762491A (fr) | 1971-08-03 |
| GB1237517A (en) | 1971-06-30 |
| NL7101262A (de) | 1971-08-09 |
| DE2104397A1 (de) | 1971-08-12 |
| US3728634A (en) | 1973-04-17 |
| FR2079253B1 (de) | 1976-05-28 |