DE69005115D1 - Akustische oberflächenwellenverzögerungsleitung mit anzapfungen und gerät mit einer solchen verzögerungsleitung. - Google Patents

Akustische oberflächenwellenverzögerungsleitung mit anzapfungen und gerät mit einer solchen verzögerungsleitung.

Info

Publication number: DE69005115D1
Authority: DE; Germany
Prior art keywords: delay line; taps; surface wave; acoustic surface; wave delay
Prior art date: 1989-07-19
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.): Expired - Fee Related

Application number

DE90910502T

Other languages

English (en)

Other versions

DE69005115T2 (de

Inventor

Alexander Birkett

Paul Kennard

Thomas Cameron

Barry Syrett

Stephen Barber

Mark Suthers

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.)

Nortel Networks Ltd

Original Assignee

Northern Telecom 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.)

1989-07-19

Filing date

1990-07-11

Publication date

1994-01-20

1990-07-11 Application filed by Northern Telecom Ltd filed Critical Northern Telecom Ltd

1994-01-20 Application granted granted Critical

1994-01-20 Publication of DE69005115D1 publication Critical patent/DE69005115D1/de

1994-04-14 Publication of DE69005115T2 publication Critical patent/DE69005115T2/de

2010-07-12 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Links

208000034953 Twin anemia-polycythemia sequence Diseases 0.000 title 1

Classifications

- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/30—Time-delay networks
- H03H9/42—Time-delay networks using surface acoustic waves
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/74—Multiple-port networks for connecting several sources or loads, working on the same frequency or frequency band, to a common load or source
- H03H9/76—Networks using surface acoustic waves

Landscapes

Physics & Mathematics (AREA)
Acoustics & Sound (AREA)
Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Amplifiers (AREA)
Filters That Use Time-Delay Elements (AREA)
Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

DE90910502T 1989-07-19 1990-07-11 Akustische oberflächenwellenverzögerungsleitung mit anzapfungen und gerät mit einer solchen verzögerungsleitung. Expired - Fee Related DE69005115T2 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
CA000606058A CA1310079C (en)	1989-07-19	1989-07-19	Saw device tapped delay line and apparatus using same
PCT/CA1990/000217 WO1991001593A1 (en)	1989-07-19	1990-07-11	Saw device tapped delay line and apparatus using same

Publications (2)

Publication Number	Publication Date
DE69005115D1 true DE69005115D1 (de)	1994-01-20
DE69005115T2 DE69005115T2 (de)	1994-04-14

Family

ID=4140369

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE90910502T Expired - Fee Related DE69005115T2 (de)	1989-07-19	1990-07-11	Akustische oberflächenwellenverzögerungsleitung mit anzapfungen und gerät mit einer solchen verzögerungsleitung.

Country Status (6)

Country	Link
US (1)	US5051709A (de)
EP (1)	EP0482033B1 (de)
JP (1)	JPH05503611A (de)
CA (1)	CA1310079C (de)
DE (1)	DE69005115T2 (de)
WO (1)	WO1991001593A1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5122767A (en) *	1991-01-10	1992-06-16	Northern Telecom Limited	Saw device tapped delay lines
DE9204558U1 (de) *	1992-04-02	1992-05-27	Qvf Glastechnik Gmbh, 6200 Wiesbaden	Magnetkupplungspumpe
US5394003A (en) *	1993-05-20	1995-02-28	Electronic Decisions Inc.	Acoustic charge transport device buffered architecture
US5515014A (en) *	1994-11-30	1996-05-07	At&T Corp.	Interface between SAW filter and Gilbert cell mixer
US5668431A (en) *	1996-03-07	1997-09-16	Northern Telecom Limited	Surface wave devices for differential coherent detectors
US6492884B1 (en) *	1998-11-13	2002-12-10	The United States Of America As Represented By The Secretary Of The Army	Programmable transversal filter
US6459345B1 (en) *	2001-08-08	2002-10-01	The United States Of America As Represented By The Secretary Of The Army	Programmable saw filter including unidirectional transducers
US7324608B1 (en) *	2003-03-14	2008-01-29	Ralink Technology, Inc.	Efficient subcarrier weighting to enhance receiver performance
JP4103666B2 (ja) *	2003-04-03	2008-06-18	株式会社村田製作所	無線受信装置
US7750752B1 (en)	2007-06-13	2010-07-06	The United States Of America As Represented By The Secretary Of The Army	Programmable SAW filter module
US9991874B1 (en) *	2016-11-02	2018-06-05	Northrop Grumman Systems Corporation	8GHz-20GHz noise cancelling transversal reconfigurable notch filter

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3648081A (en) *	1970-06-30	1972-03-07	Ibm	Piezoelectric acoustic surface wave device utilizing an amorphous semiconductive sensing material
US3727153A (en) *	1971-06-30	1973-04-10	Ibm	Automatic equalizer using recirculation
US3715674A (en) *	1971-07-23	1973-02-06	Stanford Research Inst	Electrically controlled reflection of acoustic surface waves
JPS5228840A (en) *	1975-08-29	1977-03-04	Matsushita Electric Ind Co Ltd	Surface-wave delay element
SU1015488A1 (ru) *	1980-09-05	1983-04-30	Предприятие П/Я А-7956	Фильтр на поверхностных акустических волнах
US4434481A (en) *	1982-07-13	1984-02-28	Rca Corporation	Traveling wave surface acoustic wave transducer
US4814658A (en) *	1986-11-10	1989-03-21	Northern Telecom Limited	SAW device with continuous finger pattern

1989
- 1989-07-19 CA CA000606058A patent/CA1310079C/en not_active Expired - Lifetime
- 1989-07-20 US US07/382,921 patent/US5051709A/en not_active Expired - Fee Related
1990
- 1990-07-11 WO PCT/CA1990/000217 patent/WO1991001593A1/en not_active Ceased
- 1990-07-11 DE DE90910502T patent/DE69005115T2/de not_active Expired - Fee Related
- 1990-07-11 JP JP2509912A patent/JPH05503611A/ja active Pending
- 1990-07-11 EP EP90910502A patent/EP0482033B1/de not_active Expired - Lifetime

Also Published As

Publication number	Publication date
CA1310079C (en)	1992-11-10
EP0482033B1 (de)	1993-12-08
US5051709A (en)	1991-09-24
DE69005115T2 (de)	1994-04-14
EP0482033A1 (de)	1992-04-29
JPH05503611A (ja)	1993-06-10
WO1991001593A1 (en)	1991-02-07

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Legal Events

Date	Code	Title	Description
1995-01-12	8364	No opposition during term of opposition
2005-05-12	8339	Ceased/non-payment of the annual fee