HK1015978A1 - Tuning control system - Google Patents

Tuning control system

Info

Publication number
HK1015978A1
HK1015978A1 HK99100743A HK99100743A HK1015978A1 HK 1015978 A1 HK1015978 A1 HK 1015978A1 HK 99100743 A HK99100743 A HK 99100743A HK 99100743 A HK99100743 A HK 99100743A HK 1015978 A1 HK1015978 A1 HK 1015978A1
Authority
HK
Hong Kong
Prior art keywords
control system
tuning control
tuning
control
Prior art date
Application number
HK99100743A
Inventor
Takeshi Ikeda
Tadataka Ohe
Akira Okamoto
Original Assignee
Takeshi Ikeda
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 Takeshi Ikeda filed Critical Takeshi Ikeda
Publication of HK1015978A1 publication Critical patent/HK1015978A1/en

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
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/02—Details
    • H03J3/06—Arrangements for obtaining constant bandwidth or gain throughout tuning range or ranges
    • H03J3/08—Arrangements for obtaining constant bandwidth or gain throughout tuning range or ranges by varying a second parameter simultaneously with the tuning, e.g. coupling bandpass filter
HK99100743A 1995-11-09 1999-02-24 Tuning control system HK1015978A1 (en)

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
JP31722795 1995-11-09
JP31739395 1995-11-09
JP31722895 1995-11-09
JP31756795 1995-11-09
JP31756695 1995-11-09
JP34665795 1995-12-13
JP1815296 1996-01-08
JP3888096 1996-02-01
PCT/JP1996/001098 WO1997017760A1 (en) 1995-11-09 1996-04-23 Tuning control system

Publications (1)

Publication Number Publication Date
HK1015978A1 true HK1015978A1 (en) 1999-10-22

Family

ID=27571842

Family Applications (1)

Application Number Title Priority Date Filing Date
HK99100743A HK1015978A1 (en) 1995-11-09 1999-02-24 Tuning control system

Country Status (6)

Country Link
JP (1) JP3764484B2 (en)
KR (1) KR100350399B1 (en)
CN (1) CN1113463C (en)
AU (1) AU5348296A (en)
HK (1) HK1015978A1 (en)
WO (1) WO1997017760A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005119206A1 (en) * 2004-06-02 2005-12-15 Japan Science And Technology Agency Method and device for controlling photo-excitation q value of vibrator

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5910092B2 (en) * 1979-10-22 1984-03-07 防衛庁技術研究本部長 Synchronous oscillation AFC method
JPS6290016A (en) * 1986-06-25 1987-04-24 Nippon Columbia Co Ltd Frequency characteristic correction circuit
JPH03178205A (en) * 1989-12-07 1991-08-02 Matsushita Electric Ind Co Ltd Phase shift type cr oscillator
JPH0575387A (en) * 1991-09-17 1993-03-26 Sanyo Electric Co Ltd Variable delay circuit
JPH05183406A (en) * 1991-12-27 1993-07-23 Nec Eng Ltd Automatic phase correction circuit
JPH05291945A (en) * 1992-04-14 1993-11-05 Matsushita Electric Ind Co Ltd Phase difference measurement circuit for synchronizing signal

Also Published As

Publication number Publication date
KR100350399B1 (en) 2002-12-18
CN1113463C (en) 2003-07-02
WO1997017760A1 (en) 1997-05-15
JP3764484B2 (en) 2006-04-05
KR19990037687A (en) 1999-05-25
CN1201568A (en) 1998-12-09
AU5348296A (en) 1997-05-29

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Legal Events

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

Effective date: 20070423