GB0025692D0 - Method and apparatus for adjusting filter - Google Patents

Method and apparatus for adjusting filter

Info

Publication number: GB0025692D0
Authority: GB; United Kingdom
Prior art keywords: adjusting filter; filter; adjusting
Prior art date: 1999-10-21
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 Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn

Application number

GB0025692A

Other versions

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.)

Panasonic Holdings Corp

Original Assignee

Matsushita Electric Industrial Co Ltd

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.)

1999-10-21

Filing date

2000-10-19

Publication date

2000-12-06

2000-10-19 Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd

2000-12-06 Publication of GB0025692D0 publication Critical patent/GB0025692D0/en

2001-06-20 Publication of GB2357384A publication Critical patent/GB2357384A/en

Status Withdrawn legal-status Critical Current

Classifications

- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H11/00—Networks using active elements
- H03H11/02—Multiple-port networks
- H03H11/04—Frequency selective two-port networks
- H03H11/12—Frequency selective two-port networks using amplifiers with feedback
- H03H11/1291—Current or voltage controlled filters

GB0025692A 1999-10-21 2000-10-19 Method and apparatus for adjusting filter Withdrawn GB2357384A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
JP29992099A JP2001119268A (en)	1999-10-21	1999-10-21	Filter adjusting method and device

Publications (2)

Publication Number	Publication Date
GB0025692D0 true GB0025692D0 (en)	2000-12-06
GB2357384A GB2357384A (en)	2001-06-20

Family

ID=17878533

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB0025692A Withdrawn GB2357384A (en)	1999-10-21	2000-10-19	Method and apparatus for adjusting filter

Country Status (4)

Country	Link
JP (1)	JP2001119268A (en)
KR (1)	KR20010040156A (en)
CN (1)	CN1294450A (en)
GB (1)	GB2357384A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
TW200637181A (en) *	2005-03-02	2006-10-16	Koninkl Philips Electronics Nv	Methods and apparatuses for tuning filters
US7504879B2 (en)	2006-08-24	2009-03-17	Itt Manufacturing Enterprises, Inc.	Transconductor and filter circuit

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH0693594B2 (en) *	1989-02-16	1994-11-16	株式会社東芝	Analog filter automatic adjustment circuit
US5019792A (en) *	1989-10-23	1991-05-28	Raytheon Company	Signal tracking electronically tunable filter
US5245565A (en) *	1991-07-31	1993-09-14	International Microelectronic Products	Digitally programmable linear phase filter having phase equalization
US5550520A (en) *	1995-04-11	1996-08-27	Trw Inc.	Monolithic HBT active tuneable band-pass filter
US5701099A (en) *	1995-11-27	1997-12-23	Level One Communications, Inc.	Transconductor-C filter element with coarse and fine adjustment

1999
- 1999-10-21 JP JP29992099A patent/JP2001119268A/en active Pending
2000
- 2000-10-19 GB GB0025692A patent/GB2357384A/en not_active Withdrawn
- 2000-10-20 CN CN 00131467 patent/CN1294450A/en active Pending
- 2000-10-21 KR KR1020000062154A patent/KR20010040156A/en not_active Application Discontinuation

Also Published As

Publication number	Publication date
KR20010040156A (en)	2001-05-15
GB2357384A (en)	2001-06-20
CN1294450A (en)	2001-05-09
JP2001119268A (en)	2001-04-27

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Legal Events

Date	Code	Title	Description
2002-04-03	WAP	Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)