CA2391336A1 - Method and circuit for acquisition - Google Patents

Method and circuit for acquisition Download PDF

Info

Publication number
CA2391336A1
CA2391336A1 CA002391336A CA2391336A CA2391336A1 CA 2391336 A1 CA2391336 A1 CA 2391336A1 CA 002391336 A CA002391336 A CA 002391336A CA 2391336 A CA2391336 A CA 2391336A CA 2391336 A1 CA2391336 A1 CA 2391336A1
Authority
CA
Canada
Prior art keywords
frame synchronization
carrier
selector
acquire
channel
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.)
Granted
Application number
CA002391336A
Other languages
French (fr)
Other versions
CA2391336C (en
Inventor
Kenichi Shiraishi
Akihiro Horii
Shoji Matsuda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kenwood KK
Original Assignee
Kabushiki Kaisha Kenwood
Kenichi Shiraishi
Akihiro Horii
Shoji Matsuda
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kabushiki Kaisha Kenwood, Kenichi Shiraishi, Akihiro Horii, Shoji Matsuda filed Critical Kabushiki Kaisha Kenwood
Publication of CA2391336A1 publication Critical patent/CA2391336A1/en
Application granted granted Critical
Publication of CA2391336C publication Critical patent/CA2391336C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals
    • H04L7/041—Speed or phase control by synchronisation signals using special codes as synchronising signal
    • H04L7/042—Detectors therefor, e.g. correlators, state machines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0024—Carrier regulation at the receiver end
    • H04L2027/0026—Correction of carrier offset
    • H04L2027/003—Correction of carrier offset at baseband only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0053—Closed loops
    • H04L2027/0057—Closed loops quadrature phase
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0063—Elements of loops
    • H04L2027/0065—Frequency error detectors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0063—Elements of loops
    • H04L2027/0067—Phase error detectors

Abstract

Frame synchronization is quickly established to acquire an RF
channel in a short time. Numerically controlled oscillators 1-1 to 1-3, complex calculation circuits 2-1 to 2-3, band limit filters 3-1 to 3-3, a selector 7, a phase error detection circuit 9, a loop filter 10, and an AFC
circuit 11 compose a carrier regeneration loop for removing the frequency error of the carrier included in an in-phase component I and a quadrant component Q of the baseband signal input to the complex calculation circuits 2-1 to 2-3. A timing generator 6 detects which of frame synchronization pattern detection circuits 5-1 to 5-3 has detected a frame synchronization pattern, provides the selector 7 with a selection signal corresponding to the decision result, and sends a switch signal to the AFC circuit 11. Thereafter, the carrier for removing the frequency error included in the baseband signal is regenerated to acquire an RF channel in a short time.
CA002391336A 1999-10-05 2000-10-02 Method and circuit for acquisition Expired - Fee Related CA2391336C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP28421499A JP3626047B2 (en) 1999-10-05 1999-10-05 Synchronization acquisition circuit and synchronization acquisition method
JP11/284214 1999-10-05
PCT/JP2000/006838 WO2001026315A1 (en) 1999-10-05 2000-10-02 Method and circuit for acquisition

Publications (2)

Publication Number Publication Date
CA2391336A1 true CA2391336A1 (en) 2001-04-12
CA2391336C CA2391336C (en) 2009-05-12

Family

ID=17675654

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002391336A Expired - Fee Related CA2391336C (en) 1999-10-05 2000-10-02 Method and circuit for acquisition

Country Status (7)

Country Link
US (1) US7079597B1 (en)
EP (1) EP1220503B1 (en)
JP (1) JP3626047B2 (en)
CN (1) CN1236589C (en)
CA (1) CA2391336C (en)
DE (2) DE60045597D1 (en)
WO (1) WO2001026315A1 (en)

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JP4904906B2 (en) * 2006-04-27 2012-03-28 パナソニック株式会社 Receiving device and electronic device using the same
JP4229180B2 (en) * 2006-12-08 2009-02-25 ソニー株式会社 Receiving device, control method, and program
EP2203799A4 (en) 2007-10-22 2017-05-17 Mobileaccess Networks Ltd. Communication system using low bandwidth wires
CN101227447B (en) * 2008-02-18 2011-07-20 华为技术有限公司 Coarse timing capture method, apparatus and mobile terminal
US8594212B2 (en) * 2008-06-30 2013-11-26 Telefonaktiebolaget Lm Ericsson (Publ) IQ-imbalance compensation in presence of carrier offset
JP5434301B2 (en) * 2009-06-26 2014-03-05 ソニー株式会社 Signal receiving apparatus, signal receiving apparatus control method, and computer program
CN101702706B (en) * 2009-11-18 2012-05-23 北京航空航天大学 Frame synchronized method for unmanned air vehicle downstream data chain
US8803424B2 (en) * 2010-10-20 2014-08-12 COMET Technologies USA, Inc. RF/VHF impedance matching, 4 quadrant, dual directional coupler with V RMS/IRMS responding detector circuitry
US8638889B2 (en) * 2010-10-28 2014-01-28 Broadcom Corporation Method and apparatus to improve acquisition of a quadrature amplitude modulated (QAM) signal having a frequency offset
EP2829152A2 (en) 2012-03-23 2015-01-28 Corning Optical Communications Wireless Ltd. Radio-frequency integrated circuit (rfic) chip(s) for providing distributed antenna system functionalities, and related components, systems, and methods
US20140293894A1 (en) * 2013-03-28 2014-10-02 Coming Optical Communications Wireless, Ltd. Distributing dynamically frequency-shifted intermediate frequency (if) radio frequency (rf) communications signals in distributed antenna systems (dass), and related components, systems, and methods
US9184960B1 (en) 2014-09-25 2015-11-10 Corning Optical Communications Wireless Ltd Frequency shifting a communications signal(s) in a multi-frequency distributed antenna system (DAS) to avoid or reduce frequency interference
US10256909B2 (en) * 2017-08-30 2019-04-09 Ciena Corporation Systems and methods for relative phase measurement and alignment of 66B encoded signals
CN111699542B (en) 2017-11-29 2023-05-16 康姆艾德技术美国分公司 Retuning for impedance matching network control
US11527385B2 (en) 2021-04-29 2022-12-13 COMET Technologies USA, Inc. Systems and methods for calibrating capacitors of matching networks
US11114279B2 (en) 2019-06-28 2021-09-07 COMET Technologies USA, Inc. Arc suppression device for plasma processing equipment
US11107661B2 (en) 2019-07-09 2021-08-31 COMET Technologies USA, Inc. Hybrid matching network topology
US11596309B2 (en) 2019-07-09 2023-03-07 COMET Technologies USA, Inc. Hybrid matching network topology
US11670488B2 (en) 2020-01-10 2023-06-06 COMET Technologies USA, Inc. Fast arc detecting match network
US11830708B2 (en) 2020-01-10 2023-11-28 COMET Technologies USA, Inc. Inductive broad-band sensors for electromagnetic waves
US11521832B2 (en) 2020-01-10 2022-12-06 COMET Technologies USA, Inc. Uniformity control for radio frequency plasma processing systems
US11887820B2 (en) 2020-01-10 2024-01-30 COMET Technologies USA, Inc. Sector shunts for plasma-based wafer processing systems
US11961711B2 (en) 2020-01-20 2024-04-16 COMET Technologies USA, Inc. Radio frequency match network and generator
US11605527B2 (en) 2020-01-20 2023-03-14 COMET Technologies USA, Inc. Pulsing control match network
US11373844B2 (en) 2020-09-28 2022-06-28 COMET Technologies USA, Inc. Systems and methods for repetitive tuning of matching networks
US11923175B2 (en) 2021-07-28 2024-03-05 COMET Technologies USA, Inc. Systems and methods for variable gain tuning of matching networks
US11657980B1 (en) 2022-05-09 2023-05-23 COMET Technologies USA, Inc. Dielectric fluid variable capacitor

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4621365A (en) * 1984-11-16 1986-11-04 Hughes Aircraft Company Synchronization preamble correlation detector and frequency estimator
JP2765600B2 (en) * 1991-09-19 1998-06-18 日本電気株式会社 Demodulation circuit
US5251210A (en) * 1991-11-01 1993-10-05 Ibm Corporation Method and apparatus for transforming low bandwidth telecommunications channels into a high bandwidth telecommunication channel
JP2876906B2 (en) 1992-07-23 1999-03-31 日本電気株式会社 Unique word detection circuit and demodulation circuit
JPH0765513A (en) 1993-08-27 1995-03-10 Canon Inc Synchronization mark detector and information reproducing apparatus
US6111911A (en) * 1995-06-07 2000-08-29 Sanconix, Inc Direct sequence frequency ambiguity resolving receiver
FI101438B (en) * 1996-05-21 1998-06-15 Nokia Mobile Phones Ltd Signal retrieval in a satellite telephone system
JP3086173B2 (en) 1996-06-18 2000-09-11 日本無線株式会社 Synchronization establishment method and data demodulation device using the same

Also Published As

Publication number Publication date
EP1220503B1 (en) 2011-02-02
CN1236589C (en) 2006-01-11
DE60045597D1 (en) 2011-03-17
DE1220503T1 (en) 2003-04-10
JP3626047B2 (en) 2005-03-02
CN1377545A (en) 2002-10-30
EP1220503A4 (en) 2007-04-25
WO2001026315A1 (en) 2001-04-12
JP2001111643A (en) 2001-04-20
CA2391336C (en) 2009-05-12
EP1220503A1 (en) 2002-07-03
US7079597B1 (en) 2006-07-18

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EEER Examination request
MKLA Lapsed

Effective date: 20191002