DE69023100T2 - Schaltung zur Signalqualitätsbestimmung für FM-Empfänger. - Google Patents
Schaltung zur Signalqualitätsbestimmung für FM-Empfänger.Info
- Publication number
- DE69023100T2 DE69023100T2 DE69023100T DE69023100T DE69023100T2 DE 69023100 T2 DE69023100 T2 DE 69023100T2 DE 69023100 T DE69023100 T DE 69023100T DE 69023100 T DE69023100 T DE 69023100T DE 69023100 T2 DE69023100 T2 DE 69023100T2
- Authority
- DE
- Germany
- Prior art keywords
- receivers
- circuit
- signal quality
- quality determination
- determination
- 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 - Fee Related
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
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
-
- 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
- H04B1/1646—Circuits adapted for the reception of stereophonic signals
- H04B1/1661—Reduction of noise by manipulation of the baseband composite stereophonic signal or the decoded left and right channels
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/443,624 US5125105A (en) | 1989-11-30 | 1989-11-30 | High-quality reception indicating circuit for fm receivers |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69023100D1 DE69023100D1 (de) | 1995-11-23 |
DE69023100T2 true DE69023100T2 (de) | 1996-03-21 |
Family
ID=23761549
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69023100T Expired - Fee Related DE69023100T2 (de) | 1989-11-30 | 1990-11-08 | Schaltung zur Signalqualitätsbestimmung für FM-Empfänger. |
Country Status (4)
Country | Link |
---|---|
US (1) | US5125105A (de) |
EP (1) | EP0430469B1 (de) |
CA (1) | CA2026811A1 (de) |
DE (1) | DE69023100T2 (de) |
Families Citing this family (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2109576C (en) * | 1992-04-24 | 1998-06-16 | Patrick J. Marry | Method and apparatus for determining signal transmission quality levels of a transmitted signal |
KR100289630B1 (ko) * | 1992-07-13 | 2001-05-02 | 리패치 | 무선 랜의 출력제어방법 및 장치 |
DE4226346A1 (de) * | 1992-08-08 | 1994-02-10 | Philips Patentverwaltung | Schaltungsanordnung zur Bestimmung der Feldstärke von FM-Sendern |
DE4309518A1 (de) * | 1993-03-24 | 1994-10-06 | Blaupunkt Werke Gmbh | Schaltungsanordnung zur Ableitung mindestens eines von der Qualität eines empfangenen Signals abhängigen Qualitätssignals |
DE4311933A1 (de) * | 1993-04-10 | 1994-10-13 | Blaupunkt Werke Gmbh | Schaltungsanordnung zur Erzeugung eines Stopp-Signals für einen Sendersuchlauf |
JPH07111484A (ja) * | 1993-08-20 | 1995-04-25 | Hitachi Ltd | 無線通信装置 |
JPH07106921A (ja) * | 1993-10-08 | 1995-04-21 | Uniden Corp | 高速走査無線受信機 |
MA23383A1 (fr) * | 1993-12-03 | 1995-07-01 | Scientific Atlanta | Procede et dispositif pour localiser et suivre une porteuse qpsk |
JP3483295B2 (ja) * | 1994-04-15 | 2004-01-06 | 富士通株式会社 | 周辺ゾーンキャリア監視方式および移動局 |
US5555451A (en) * | 1994-06-13 | 1996-09-10 | Ford Motor Company | High-quality reception indicating circuit for scanning AM recievers |
US5671286A (en) * | 1995-06-09 | 1997-09-23 | Ford Motor Company | Strategy for controlling FM stereo separation and frequency response in noisy reception environments |
US6493544B1 (en) * | 1996-05-15 | 2002-12-10 | Daimlerchrysler Corporation | FM signal quality detector during seek |
US6476878B1 (en) * | 1998-10-21 | 2002-11-05 | Scientific-Atlanta, Inc. | Method and apparatus for audio signal processing |
EP1188236B1 (de) * | 1999-06-23 | 2003-07-30 | Infineon Technologies AG | Integrierte schaltung zur detektion eines empfangssignals sowie schaltungsanordnung |
US7127010B1 (en) * | 1999-07-29 | 2006-10-24 | Bose Corporation | Oscillator controlling |
US6463266B1 (en) * | 1999-08-10 | 2002-10-08 | Broadcom Corporation | Radio frequency control for communications systems |
JP2002325028A (ja) * | 2001-04-26 | 2002-11-08 | General Res Of Electronics Inc | 周波数走査形受信機 |
US7006797B1 (en) * | 2001-05-21 | 2006-02-28 | Counter Technologies, Llc | Coherence frequency determining system and associated radio apparatus |
US7848720B2 (en) * | 2002-06-07 | 2010-12-07 | Nxp B.V. | Method and apparatus for auto-tuning of a radio fm-receiver |
US7031680B2 (en) * | 2002-12-05 | 2006-04-18 | Freescale Semiconductor, Inc. | Stop-on-station method and apparatus |
US7366606B2 (en) * | 2004-04-06 | 2008-04-29 | Honda Motor Co., Ltd. | Method for refining traffic flow data |
TWI317240B (en) * | 2006-07-05 | 2009-11-11 | Asustek Comp Inc | Anti-pop circuit |
JP2008017292A (ja) * | 2006-07-07 | 2008-01-24 | Denso Corp | ラジオ放送受信装置およびラジオ放送の自動選局装置 |
EP2058949A4 (de) * | 2006-08-31 | 2009-12-09 | Clarion Co Ltd | Ausstrahlungsempfänger und ausstrahlungskanal-suchverfahren |
GB0624982D0 (en) * | 2006-12-14 | 2007-01-24 | Cambridge Silicon Radio Ltd | FM signal quality measurement |
US20080233869A1 (en) * | 2007-03-19 | 2008-09-25 | Thomas Baker | Method and system for a single-chip fm tuning system for transmit and receive antennas |
US7869779B2 (en) * | 2007-05-30 | 2011-01-11 | Broadcom Corporation | Method and system for processing channels in a FM communication system |
US7937053B2 (en) * | 2007-06-08 | 2011-05-03 | Himax Technologies Limited | Method for receiving station signal and receiver for receiving the same |
JP2009081839A (ja) * | 2007-09-04 | 2009-04-16 | Sanyo Electric Co Ltd | Fmチューナ |
JP2009105727A (ja) * | 2007-10-24 | 2009-05-14 | Sanyo Electric Co Ltd | Fm受信機 |
US20090247101A1 (en) * | 2008-03-28 | 2009-10-01 | Ligang Zhang | Auto-detection of broadcast channel spacing |
US8064857B2 (en) * | 2008-12-15 | 2011-11-22 | Panasonic Automotive Systems Company Of America, Division Of Panasonic Corporation Of North America | Method and apparatus for co-channel interference detection in a radio |
US8600331B2 (en) * | 2012-04-11 | 2013-12-03 | Black Berry Limited | Radio receiver with reconfigurable baseband channel filter |
US9031567B2 (en) * | 2012-12-28 | 2015-05-12 | Spreadtrum Communications Usa Inc. | Method and apparatus for transmitter optimization based on allocated transmission band |
US9197266B2 (en) * | 2014-01-30 | 2015-11-24 | Qualcomm Technologies International, Ltd. | Low current RSSI detector |
CA3033489A1 (en) | 2016-08-08 | 2018-02-15 | Goldman Sachs & Co. LLC | Systems and methods for learning and predicting time-series data using inertial auto-encoders |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3934206A (en) * | 1974-09-26 | 1976-01-20 | Rockwell International Corporation | Receiver with adjustable squelch |
US3947774A (en) * | 1974-11-25 | 1976-03-30 | General Motors Corporation | Signal seeking stopping circuit receiver |
US3984776A (en) * | 1975-11-19 | 1976-10-05 | Motorola, Inc. | Signal quality detector |
US4087641A (en) * | 1976-04-01 | 1978-05-02 | Pioneer Electronic Corporation | Noise limiting circuit for FM stereo receiver |
JPS6012365Y2 (ja) * | 1978-10-20 | 1985-04-22 | ヤマハ株式会社 | 受信機の雑音除去回路 |
NL7810859A (nl) * | 1978-11-01 | 1980-05-06 | Philips Nv | Fm-ontvanger met zenderzoekinrichting. |
US4198543A (en) * | 1979-01-19 | 1980-04-15 | General Motors Corporation | Stereo composite processor for stereo radio receiver |
US4262363A (en) * | 1979-08-08 | 1981-04-14 | General Motors Corporation | Signal seeking stop circuit for amplitude modulated receiver |
US4376207A (en) * | 1980-08-18 | 1983-03-08 | Hoffmann-La Roche Inc. | Chiral synthesis of amino sugars |
JPS57212819A (en) * | 1981-06-24 | 1982-12-27 | Sharp Corp | Automatic tuning storage receiver |
JPS595730A (ja) * | 1982-06-30 | 1984-01-12 | Mitsubishi Electric Corp | 放送局サ−チ用ストツプ信号発生回路 |
JPS5980015A (ja) * | 1982-10-29 | 1984-05-09 | Pioneer Electronic Corp | チユ−ナの同調周波数設定動作指令発生装置 |
US4577226A (en) * | 1982-11-30 | 1986-03-18 | Rca Corporation | Noise reduction for FM stereophonic systems and particularly useful in television audio systems |
US4580285A (en) * | 1983-09-07 | 1986-04-01 | Sprague Electric Company | Scanning AM radio with discriminator-driven-scan-stop-circuit |
US4538300A (en) * | 1983-09-07 | 1985-08-27 | Sprague Electric Company | Linear signal strength detector in AM radio |
JPS6178230A (ja) * | 1984-09-26 | 1986-04-21 | Nec Corp | 集積化am/fm切換回路 |
US4761829A (en) * | 1985-11-27 | 1988-08-02 | Motorola Inc. | Adaptive signal strength and/or ambient noise driven audio shaping system |
DE8816338U1 (de) * | 1988-03-26 | 1989-07-06 | Blaupunkt-Werke Gmbh, 3200 Hildesheim, De | |
US4947456A (en) * | 1988-09-16 | 1990-08-07 | Uniden America Corporation | Scanning radio receiver |
US4975953A (en) * | 1989-01-13 | 1990-12-04 | Delco Electronics Corporation | Combined deemphasis circuit and noise blanker |
-
1989
- 1989-11-30 US US07/443,624 patent/US5125105A/en not_active Expired - Lifetime
-
1990
- 1990-10-03 CA CA002026811A patent/CA2026811A1/en not_active Abandoned
- 1990-11-08 DE DE69023100T patent/DE69023100T2/de not_active Expired - Fee Related
- 1990-11-08 EP EP90312233A patent/EP0430469B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0430469B1 (de) | 1995-10-18 |
DE69023100D1 (de) | 1995-11-23 |
US5125105A (en) | 1992-06-23 |
EP0430469A2 (de) | 1991-06-05 |
CA2026811A1 (en) | 1991-05-31 |
EP0430469A3 (en) | 1992-05-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8320 | Willingness to grant licences declared (paragraph 23) | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: FORD-WERKE GMBH, 50735 KOELN, DE |
|
8339 | Ceased/non-payment of the annual fee |