AU2001253269A1 - Sharply tuned bandpass filter - Google Patents

Sharply tuned bandpass filter

Info

Publication number: AU2001253269A1
Authority: AU; Australia
Prior art keywords: bandpass filter; sharply tuned; tuned bandpass; sharply; filter
Prior art date: 2000-04-07
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.): Abandoned

Application number

AU2001253269A

Inventor

Robert J Plonka

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.)

Harris Corp

Original Assignee

Harris Corp

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.)

2000-04-07

Filing date

2001-04-05

Publication date

2001-10-23

2001-04-05 Application filed by Harris Corp filed Critical Harris Corp

2001-10-23 Publication of AU2001253269A1 publication Critical patent/AU2001253269A1/en

Status Abandoned legal-status Critical Current

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/38—Transmitter circuitry for the transmission of television signals according to analogue transmission standards
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/207—Hollow waveguide filters
- H01P1/208—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure
- H01P1/2082—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure with multimode resonators

Landscapes

Engineering & Computer Science (AREA)
Multimedia (AREA)
Signal Processing (AREA)
Transmitters (AREA)
Stereophonic System (AREA)

AU2001253269A 2000-04-07 2001-04-05 Sharply tuned bandpass filter Abandoned AU2001253269A1 (en)

Applications Claiming Priority (5)

Application Number	Priority Date	Filing Date	Title
US19523800P	2000-04-07	2000-04-07
US60195238		2000-04-07
US23622500P	2000-09-28	2000-09-28
US60236225		2000-09-28
PCT/US2001/011459 WO2001078370A2 (en)	2000-04-07	2001-04-05	Sharply tuned bandpass filter

Publications (1)

Publication Number	Publication Date
AU2001253269A1 true AU2001253269A1 (en)	2001-10-23

Family

ID=26890826

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
AU2001253266A Abandoned AU2001253266A1 (en)	2000-04-07	2001-04-05	Sharp tuned filter-combiner for combining adjacent tv channels
AU2001253269A Abandoned AU2001253269A1 (en)	2000-04-07	2001-04-05	Sharply tuned bandpass filter

Family Applications Before (1)

Application Number	Title	Priority Date	Filing Date
AU2001253266A Abandoned AU2001253266A1 (en)	2000-04-07	2001-04-05	Sharp tuned filter-combiner for combining adjacent tv channels

Country Status (5)

Country	Link
US (1)	US7224400B2 (en)
EP (2)	EP1290866A2 (en)
AU (2)	AU2001253266A1 (en)
CA (2)	CA2405039A1 (en)
WO (2)	WO2001078369A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP1290866A2 (en)	2000-04-07	2003-03-12	Harris Corporation	Sharp tuned filter-combiner for combining adjacent tv channels
US6933986B2 (en)	2000-04-07	2005-08-23	Harris Corporation	Sharply tuned bandpass filter
FR2836615B1 (en) *	2002-02-25	2004-05-07	Telediffusion De France Tdf	METHOD AND DEVICE FOR REMOVING INTERFERENCE FROM AN ANALOG TELEVISION BROADCASTING BY DIGITAL TELEVISION SIGNALS TRANSMITTED IN AN ADJACENT CHANNEL
JP4075759B2 (en) *	2002-11-29	2008-04-16	株式会社村田製作所	Transmission / reception filter device and communication device
US7945225B2 (en) *	2007-07-09	2011-05-17	Myat, Inc.	Medium loss high power IBOC combiner
JP2011010120A (en) *	2009-06-26	2011-01-13	Fujitsu Ltd	Wireless communication apparatus and method
CA2762703A1 (en)	2011-05-17	2012-11-17	Apollo Microwaves, Ltd.	A waveguide filter having coupling screws

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5327245A (en)	1992-02-11	1994-07-05	Information Transmission Systems Corp.	Method and apparatus for combining adjacent channel television signals
US5774193A (en) *	1992-10-05	1998-06-30	Vaughan; Thomas J.	Digital television (HDTV) and analog television (NTSC) broadcast systems combined for simultaneous broadcast
US5412426A (en) *	1993-04-16	1995-05-02	Harris Corporation	Multiplexing of digitally encoded NTSC and HDTV signals over single microwave communication link from television studio to tower transmitter facility for simultaneous broadcast (simulcast) to customer sites by transmitter facility
US6046781A (en)	1997-01-07	2000-04-04	Samsung Electronics Co., Ltd.	Automatic fine tuning of TV receiver for receiving both digital and analog TV signals
US6061096A (en) *	1997-03-19	2000-05-09	Samsung Electronics Co., Ltd.	Digital-and-analog-TV-signal receivers, each with single first detector and shared high-band I-F amplification
US6549242B1 (en)	1997-04-04	2003-04-15	Harris Corporation	Combining adjacent TV channels for transmission by a common antenna
US6725463B1 (en) *	1997-08-01	2004-04-20	Microtune (Texas), L.P.	Dual mode tuner for co-existing digital and analog television signals
DE19747447A1 (en) *	1997-10-28	1999-04-29	Cit Alcatel	Device for merging and amplifying two broadband signals
US6184921B1 (en)	1998-02-20	2001-02-06	Samsung Electronics Co., Ltd.	Method for transmitting VSB digital TV with carrier frequency near co-channel NTSC audio carrier frequency
US6278498B1 (en)	1998-04-01	2001-08-21	Adc Telecommunications, Inc.	Apparatus and method for combining digital and analog television signals
US6188446B1 (en) *	1998-04-23	2001-02-13	Thomcast Communications, Inc.	Dual diplexer combining device and television broadcast transmission system using same
US5943012A (en) *	1998-05-01	1999-08-24	Tci/Br Communication, Inc.	Method and apparatus for exciting a television antenna using orthogonal modes
US6377314B1 (en) *	1998-07-31	2002-04-23	Rf Technology, Inc.	Methods and apparatus for transmitting analog and digital information signals
US6219088B1 (en)	1998-11-03	2001-04-17	Broadcom Corporation	NTSC interference rejection filter
KR100275708B1 (en) *	1998-12-31	2000-12-15	윤종용	Digital broadcasting signal processing device and method for improving channel interference of analog broadcasting
EP1290866A2 (en)	2000-04-07	2003-03-12	Harris Corporation	Sharp tuned filter-combiner for combining adjacent tv channels
US6538529B1 (en) *	2000-08-16	2003-03-25	Spx Corporation	Signal separator and bandpass filter
US6710813B1 (en) *	2000-09-13	2004-03-23	Spx Corporation	Multiplexer for adjacent NTSC and DTV channels

2001
- 2001-04-05 EP EP01926752A patent/EP1290866A2/en not_active Withdrawn
- 2001-04-05 WO PCT/US2001/011455 patent/WO2001078369A2/en not_active Ceased
- 2001-04-05 CA CA002405039A patent/CA2405039A1/en not_active Abandoned
- 2001-04-05 EP EP01926756A patent/EP1277336A2/en not_active Withdrawn
- 2001-04-05 AU AU2001253266A patent/AU2001253266A1/en not_active Abandoned
- 2001-04-05 CA CA002405037A patent/CA2405037A1/en not_active Abandoned
- 2001-04-05 US US10/239,536 patent/US7224400B2/en not_active Expired - Fee Related
- 2001-04-05 AU AU2001253269A patent/AU2001253269A1/en not_active Abandoned
- 2001-04-05 WO PCT/US2001/011459 patent/WO2001078370A2/en not_active Ceased

Also Published As

Publication number	Publication date
AU2001253266A1 (en)	2001-10-23
EP1277336A2 (en)	2003-01-22
WO2001078369A3 (en)	2002-03-14
WO2001078370A3 (en)	2002-03-14
CA2405039A1 (en)	2001-10-18
CA2405037A1 (en)	2001-10-18
WO2001078370A2 (en)	2001-10-18
US7224400B2 (en)	2007-05-29
EP1290866A2 (en)	2003-03-12
WO2001078369A2 (en)	2001-10-18
US20030038874A1 (en)	2003-02-27

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