HK1052815B - 自動頻率控制電路和方法 - Google Patents

自動頻率控制電路和方法

Info

Publication number
HK1052815B
HK1052815B HK03105074.5A HK03105074A HK1052815B HK 1052815 B HK1052815 B HK 1052815B HK 03105074 A HK03105074 A HK 03105074A HK 1052815 B HK1052815 B HK 1052815B
Authority
HK
Hong Kong
Prior art keywords
afc circuit
afc
circuit
Prior art date
Application number
HK03105074.5A
Other languages
English (en)
Other versions
HK1052815A1 (en
Inventor
小田敏之
Original Assignee
日本電氣株式會社
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 日本電氣株式會社 filed Critical 日本電氣株式會社
Publication of HK1052815A1 publication Critical patent/HK1052815A1/xx
Publication of HK1052815B publication Critical patent/HK1052815B/zh

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
    • 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
    • H04L2027/0083—Signalling arrangements
    • H04L2027/0089—In-band signals
    • H04L2027/0093—Intermittant signals
    • H04L2027/0095—Intermittant signals in a preamble or similar structure
HK03105074.5A 2001-06-19 2003-07-14 自動頻率控制電路和方法 HK1052815B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001184242A JP4449259B2 (ja) 2001-06-19 2001-06-19 Ａｆｃ回路

Publications (2)

Publication Number Publication Date
HK1052815A1 HK1052815A1 (en) 2003-09-26
HK1052815B true HK1052815B (zh) 2005-11-11

Family

ID=19024036

Family Applications (1)

Application Number Title Priority Date Filing Date
HK03105074.5A HK1052815B (zh) 2001-06-19 2003-07-14 自動頻率控制電路和方法

Country Status (5)

Country Link
US (1) US6853255B2 (zh)
JP (1) JP4449259B2 (zh)
CN (1) CN1201617C (zh)
GB (1) GB2378590B (zh)
HK (1) HK1052815B (zh)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7145970B2 (en) * 2003-07-07 2006-12-05 Beno Corporation Frequency offset detector for AFC under rayleigh fading
US6995622B2 (en) 2004-01-09 2006-02-07 Robert Bosh Gmbh Frequency and/or phase compensated microelectromechanical oscillator
KR100868014B1 (ko) * 2007-02-12 2008-11-11 주식회사 하이닉스반도체 듀티 사이클 보정 회로 및 그 제어 방법
CN102754349B (zh) * 2010-02-19 2014-11-19 古河电气工业株式会社 脉冲接收机和脉冲串信号的接收方法
CN102386913A (zh) * 2010-08-27 2012-03-21 亚旭电脑股份有限公司 振荡频率校正方法与装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0666646B2 (ja) 1987-03-13 1994-08-24 日本電信電話株式会社 自動周波数制御回路
GB2213663A (en) 1987-12-11 1989-08-16 Philips Electronic Associated Data demodulator carrier phase locking
GB2314981A (en) 1996-07-02 1998-01-14 Plessey Semiconductors Ltd Radio receiver arrangements
JPH1065566A (ja) * 1996-08-23 1998-03-06 Matsushita Electric Ind Co Ltd 小型無線機
US6160838A (en) * 1996-12-13 2000-12-12 Uniden Corporation Spread spectrum transmitter, spread spectrum receiver and spread spectrum communication method and automatic gain control circuit for spread spectrum receiver
JP3466422B2 (ja) * 1997-05-28 2003-11-10 株式会社ケンウッド 受信装置
US5970105A (en) 1998-05-11 1999-10-19 Cleveland Medical Devices Inc. Apparatus and method for efficient wireless communications in the presence of frequency error
JP4438204B2 (ja) 2000-09-20 2010-03-24 株式会社富士通ゼネラル ディジタル復調装置
JP2002190765A (ja) 2000-12-20 2002-07-05 Nec Corp 移動端末の周波数制御方式

Also Published As

Publication number Publication date
JP4449259B2 (ja) 2010-04-14
CN1392746A (zh) 2003-01-22
HK1052815A1 (en) 2003-09-26
US6853255B2 (en) 2005-02-08
JP2003008673A (ja) 2003-01-10
US20020190803A1 (en) 2002-12-19
GB2378590B (en) 2005-04-20
GB0214148D0 (en) 2002-07-31
CN1201617C (zh) 2005-05-11
GB2378590A (en) 2003-02-12

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20090619