CA1163326A - Radio receiver comprising a frequency locked loop with audio frequency feedback, and a muting circuit - Google Patents
Radio receiver comprising a frequency locked loop with audio frequency feedback, and a muting circuitInfo
- Publication number
- CA1163326A CA1163326A CA000359519A CA359519A CA1163326A CA 1163326 A CA1163326 A CA 1163326A CA 000359519 A CA000359519 A CA 000359519A CA 359519 A CA359519 A CA 359519A CA 1163326 A CA1163326 A CA 1163326A
- Authority
- CA
- Canada
- Prior art keywords
- frequency
- phase
- input
- radio receiver
- dependent
- 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
- 230000001419 dependent effect Effects 0.000 claims abstract description 24
- 238000001914 filtration Methods 0.000 claims abstract description 10
- 230000005236 sound signal Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 2
- 230000004913 activation Effects 0.000 claims 1
- 230000001629 suppression Effects 0.000 abstract description 2
- 230000003213 activating effect Effects 0.000 abstract 1
- 230000006870 function Effects 0.000 description 9
- QHGVXILFMXYDRS-UHFFFAOYSA-N pyraclofos Chemical compound C1=C(OP(=O)(OCC)SCCC)C=NN1C1=CC=C(Cl)C=C1 QHGVXILFMXYDRS-UHFFFAOYSA-N 0.000 description 7
- 230000007423 decrease Effects 0.000 description 6
- 230000000670 limiting effect Effects 0.000 description 6
- 230000001702 transmitter Effects 0.000 description 5
- 230000003321 amplification Effects 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 230000010363 phase shift Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000000543 intermediate Substances 0.000 description 2
- 239000002674 ointment Substances 0.000 description 2
- 229920000136 polysorbate Polymers 0.000 description 2
- 230000033764 rhythmic process Effects 0.000 description 2
- 101150087426 Gnal gene Proteins 0.000 description 1
- 241000644027 Perideridia lemmonii Species 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000033458 reproduction Effects 0.000 description 1
Classifications
-
- 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
- H03D3/003—Arrangements for reducing frequency deviation, e.g. by negative frequency feedback
- H03D3/004—Arrangements for reducing frequency deviation, e.g. by negative frequency feedback wherein the demodulated signal is used for controlling an oscillator, e.g. the local oscillator
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Noise Elimination (AREA)
- Superheterodyne Receivers (AREA)
- Circuits Of Receivers In General (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NLAANVRAGE7906602,A NL184594C (nl) | 1979-09-04 | 1979-09-04 | Radio-ontvanger voorzien van een frequentie gesleutelde lus met audiofrequente terugkoppeling, en een stomschakeling. |
| NL7906602 | 1979-09-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1163326A true CA1163326A (en) | 1984-03-06 |
Family
ID=19833779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000359519A Expired CA1163326A (en) | 1979-09-04 | 1980-09-04 | Radio receiver comprising a frequency locked loop with audio frequency feedback, and a muting circuit |
Country Status (15)
Families Citing this family (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL184594C (nl) * | 1979-09-04 | 1989-09-01 | Philips Nv | Radio-ontvanger voorzien van een frequentie gesleutelde lus met audiofrequente terugkoppeling, en een stomschakeling. |
| NL8200959A (nl) * | 1982-03-09 | 1983-10-03 | Philips Nv | Fm-ontvanger voorzien van een frequentie gesleutelde lus. |
| DE3208758A1 (de) * | 1982-03-11 | 1983-09-22 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Schaltungsanordnung fuer einen fm-empfaenger |
| FR2538645B1 (fr) * | 1982-12-28 | 1986-04-11 | Thomson Csf | Procede et dispositif d'interpolation de la parole dans un systeme de transmission de parole numerisee |
| NL8301179A (nl) * | 1983-04-01 | 1984-11-01 | Philips Nv | Ontvanger voor hf-signalen voorzien van een paar parallelle signaalwegen. |
| JPS59215113A (ja) * | 1983-05-23 | 1984-12-05 | Victor Co Of Japan Ltd | テレビジヨン信号受信装置のａｆｃ回路 |
| US4479250A (en) * | 1983-06-10 | 1984-10-23 | Motorola, Inc. | Dual audio capture limiter squelch circuit |
| JPS61501883A (ja) * | 1983-06-27 | 1986-08-28 | ザ コモンウエルス オブ オ−ストラリア | スケルチ回路 |
| DE3328555A1 (de) * | 1983-08-08 | 1985-02-28 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Empfaengerschaltung |
| GB2158330A (en) * | 1984-04-30 | 1985-11-06 | Philips Electronic Associated | An afc system for a direct modulation fm data receiver |
| DE3500217C2 (de) * | 1985-01-05 | 1995-04-13 | Blaupunkt Werke Gmbh | Verfahren und Schaltungsanordnung zum Unterdrücken von Zwischenstationsgeräuschen |
| JPS6235727A (ja) * | 1985-08-09 | 1987-02-16 | Nec Corp | 自己診断機能を有する受信機 |
| NL8502967A (nl) * | 1985-09-19 | 1987-04-16 | Philips Nv | Hoekdemodulator. |
| EP0298959B1 (en) * | 1986-04-03 | 1992-08-12 | Motorola, Inc. | Fm receiver with noise suppression during rayleigh faded received signals |
| JPS62189438U (US07608600-20091027-C00054.png) * | 1986-05-23 | 1987-12-02 | ||
| JPH0734547B2 (ja) * | 1988-06-16 | 1995-04-12 | パイオニア株式会社 | ミューティング制御回路 |
| US4947456A (en) * | 1988-09-16 | 1990-08-07 | Uniden America Corporation | Scanning radio receiver |
| US5514988A (en) * | 1994-09-15 | 1996-05-07 | National Semiconductor Corporation | Temperature-compensated, precision frequency-to-voltage converter |
| US5970399A (en) * | 1995-11-22 | 1999-10-19 | Telefonaktiebolaget Lm Ericsson | Radio channel squelching systems |
| US6633550B1 (en) * | 1997-02-20 | 2003-10-14 | Telefonaktiebolaget Lm Ericsson (Publ) | Radio transceiver on a chip |
| US6373398B2 (en) * | 1997-06-10 | 2002-04-16 | Kabushiki Kaisha Toshiba | Automobile tuner system |
| GB2341741B (en) * | 1998-09-18 | 2003-03-26 | Nec Technologies | Stabilisation of passband active filters |
| JP3275878B2 (ja) | 1999-06-22 | 2002-04-22 | トヨタ自動車株式会社 | デジタル放送受信機 |
| CH702685B1 (fr) | 1999-10-06 | 2011-08-31 | Richemont Int Sa | Récepteur à modulation de fréquence, notamment pour une application RDS. |
| EP1091512A1 (fr) * | 1999-10-06 | 2001-04-11 | Conseils et Manufactures VLG SA | Récepteur à modulation de fréquence, notamment pour une application RDS |
| JP2002016491A (ja) * | 2000-06-29 | 2002-01-18 | Oki Electric Ind Co Ltd | 周波数制御発振器 |
| EP1253488B1 (fr) | 2001-04-27 | 2007-04-11 | CSEM Centre Suisse d'Electronique et de Microtechnique S.A. - Recherche et Développement | Garde-temps avec mise à l'heure automatique et procédé de mise à l'heure d'un tel garde-temps |
| JP5020760B2 (ja) * | 2007-09-27 | 2012-09-05 | ラピスセミコンダクタ株式会社 | 受信周波数制御回路 |
| US8812152B1 (en) * | 2013-02-22 | 2014-08-19 | TamiCare, Ltd. | Method and apparatus for changing carriage speed on a closed-loop track |
| JP6264204B2 (ja) * | 2014-06-17 | 2018-01-24 | 富士通株式会社 | 通信装置及び位相調整方法 |
| US10211868B2 (en) * | 2014-10-21 | 2019-02-19 | Maxlinear, Inc. | Phase noise suppression |
| US9685983B2 (en) * | 2014-11-05 | 2017-06-20 | Maxlinear, Inc. | Outdoor unit resonator correction |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2122672A (en) * | 1936-06-30 | 1938-07-05 | Rca Corp | Signal controlled siren oscillator circuit |
| US2177713A (en) * | 1937-08-10 | 1939-10-31 | Hazeltine Corp | Frequency-selective network |
| US2831106A (en) * | 1956-09-25 | 1958-04-15 | American Telephone & Telegraph | Stabilized automatic frequency control circuit with noise operated squelch |
| US3100871A (en) * | 1961-01-03 | 1963-08-13 | Motorola Inc | Single sideband receiver having squelch and phase-locked detection means |
| US3619492A (en) * | 1969-06-02 | 1971-11-09 | Rca Corp | Automatic fine tuning circuitry |
| JPS5627024B2 (US07608600-20091027-C00054.png) * | 1973-01-09 | 1981-06-22 | ||
| JPS4979762A (US07608600-20091027-C00054.png) * | 1972-12-09 | 1974-08-01 | ||
| US3842198A (en) * | 1973-09-07 | 1974-10-15 | Warwick Electronics Inc | Sound demodulator and afc system |
| JPS5722252B2 (US07608600-20091027-C00054.png) * | 1973-09-28 | 1982-05-12 | ||
| US4207529A (en) * | 1976-04-08 | 1980-06-10 | Fujitsu Ten Limited | Radio receiver |
| JPS6039825B2 (ja) * | 1976-09-20 | 1985-09-07 | 日東電工株式会社 | 建造物などの外装方法 |
| US4087756A (en) * | 1977-06-14 | 1978-05-02 | Harris Corporation | FM Feedback demodulator having threshold extension circuit with two-pole crystal filters |
| US4117410A (en) * | 1977-10-13 | 1978-09-26 | Motorola, Inc. | Phase locked loop signal demodulator and squelch circuit |
| DE2754906A1 (de) * | 1977-12-09 | 1979-06-13 | Blaupunkt Werke Gmbh | Schaltungsanordnung fuer autoradios als einstellhilfe bei der senderwahl |
| JPS54115817U (US07608600-20091027-C00054.png) * | 1978-02-02 | 1979-08-14 | ||
| JPS6049372B2 (ja) * | 1978-03-30 | 1985-11-01 | ソニー株式会社 | テレビジヨン受像機 |
| NL184594C (nl) * | 1979-09-04 | 1989-09-01 | Philips Nv | Radio-ontvanger voorzien van een frequentie gesleutelde lus met audiofrequente terugkoppeling, en een stomschakeling. |
-
1979
- 1979-09-04 NL NLAANVRAGE7906602,A patent/NL184594C/xx not_active IP Right Cessation
-
1980
- 1980-08-30 DE DE3050830A patent/DE3050830C2/de not_active Expired
- 1980-08-30 DE DE3032701A patent/DE3032701C2/de not_active Expired
- 1980-08-30 DE DE3050831A patent/DE3050831C2/de not_active Expired
- 1980-09-01 SE SE8006066D patent/SE8006066L/xx not_active Application Discontinuation
- 1980-09-01 SE SE8006066A patent/SE448507B/sv not_active IP Right Cessation
- 1980-09-02 AT AT0442480A patent/AT380136B/de not_active IP Right Cessation
- 1980-09-02 ES ES494719A patent/ES494719A0/es active Granted
- 1980-09-02 IT IT68358/80A patent/IT1129142B/it active
- 1980-09-02 AU AU61963/80A patent/AU544293B2/en not_active Ceased
- 1980-09-02 US US06/183,553 patent/US4426735A/en not_active Expired - Lifetime
- 1980-09-03 FR FR8019035A patent/FR2464600A1/fr active Granted
- 1980-09-03 BR BR8005613A patent/BR8005613A/pt not_active IP Right Cessation
- 1980-09-03 GB GB8028384A patent/GB2059702B/en not_active Expired
- 1980-09-03 JP JP12126080A patent/JPS5640332A/ja active Granted
- 1980-09-04 CA CA000359519A patent/CA1163326A/en not_active Expired
-
1983
- 1983-05-11 GB GB08312991A patent/GB2124842B/en not_active Expired
- 1983-08-10 US US06/521,813 patent/US4547902A/en not_active Expired - Fee Related
- 1983-08-10 US US06/521,812 patent/US4509205A/en not_active Expired - Lifetime
- 1983-09-14 FR FR8314626A patent/FR2530097B1/fr not_active Expired
- 1983-09-14 FR FR8314627A patent/FR2530098B1/fr not_active Expired
-
1984
- 1984-03-12 SG SG221/84A patent/SG22184G/en unknown
- 1984-12-19 HK HK996/84A patent/HK99684A/xx not_active IP Right Cessation
- 1984-12-19 HK HK995/84A patent/HK99584A/xx unknown
-
1985
- 1985-05-23 HK HK404/85A patent/HK40485A/xx not_active IP Right Cessation
-
1986
- 1986-12-17 JP JP61299012A patent/JPS62247629A/ja active Pending
- 1986-12-17 JP JP61299011A patent/JPS62247628A/ja active Granted
-
1988
- 1988-06-27 JP JP1988083997U patent/JPH0336118Y2/ja not_active Expired
Also Published As
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |