IE42756B1 - Improvements in or relating to electromechanical filters - Google Patents
Improvements in or relating to electromechanical filtersInfo
- Publication number
- IE42756B1 IE42756B1 IE2432/75A IE243275A IE42756B1 IE 42756 B1 IE42756 B1 IE 42756B1 IE 2432/75 A IE2432/75 A IE 2432/75A IE 243275 A IE243275 A IE 243275A IE 42756 B1 IE42756 B1 IE 42756B1
- Authority
- IE
- Ireland
- Prior art keywords
- resonators
- filter
- transducer
- wire
- resonator
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/46—Filters
- H03H9/48—Coupling means therefor
- H03H9/50—Mechanical coupling means
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
- Electrophonic Musical Instruments (AREA)
- Centrifugal Separators (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19742453122 DE2453122A1 (de) | 1974-11-08 | 1974-11-08 | Filter fuer elektrische schwingungen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE42756L IE42756L (en) | 1976-05-08 |
| IE42756B1 true IE42756B1 (en) | 1980-10-08 |
Family
ID=5930393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE2432/75A IE42756B1 (en) | 1974-11-08 | 1975-11-07 | Improvements in or relating to electromechanical filters |
Country Status (16)
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2396456A1 (fr) * | 1977-07-01 | 1979-01-26 | Telecommunications Sa | Perfectionnements aux filtres electromecaniques |
| US10790801B2 (en) * | 2018-09-07 | 2020-09-29 | Vtt Technical Research Centre Of Finland Ltd | Loaded resonators for adjusting frequency response of acoustic wave resonators |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL243515A (US07642317-20100105-C00010.png) * | 1959-09-18 | |||
| DE2112041A1 (de) * | 1971-03-12 | 1972-09-28 | Siemens Ag | Schaltungsanordnung zur Frequenzumsetzung elektrischer Nachrichtensignale |
| JPS5020126B2 (US07642317-20100105-C00010.png) * | 1971-09-13 | 1975-07-12 | ||
| US3878487A (en) * | 1973-08-02 | 1975-04-15 | Alexandr Lvovich Irzhavsky | Electromechanical disc filter |
-
1974
- 1974-11-08 DE DE19742453122 patent/DE2453122A1/de not_active Withdrawn
-
1975
- 1975-11-03 AT AT834475A patent/AT348592B/de not_active IP Right Cessation
- 1975-11-05 CH CH1428075A patent/CH595014A5/xx not_active IP Right Cessation
- 1975-11-06 SE SE7512464A patent/SE411283B/xx unknown
- 1975-11-06 LU LU73747A patent/LU73747A1/xx unknown
- 1975-11-06 GB GB45986/75A patent/GB1531759A/en not_active Expired
- 1975-11-07 FR FR7534133A patent/FR2290788A1/fr active Granted
- 1975-11-07 NO NO753740A patent/NO143687C/no unknown
- 1975-11-07 IT IT29066/75A patent/IT1048771B/it active
- 1975-11-07 BE BE161709A patent/BE835385A/xx unknown
- 1975-11-07 DK DK502975A patent/DK502975A/da unknown
- 1975-11-07 NL NL7513106.A patent/NL163918C/xx not_active IP Right Cessation
- 1975-11-07 AU AU86429/75A patent/AU473205B2/en not_active Expired
- 1975-11-07 JP JP50133917A patent/JPS5171046A/ja active Pending
- 1975-11-07 IE IE2432/75A patent/IE42756B1/en unknown
- 1975-11-07 FI FI753135A patent/FI753135A/fi not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| NO143687B (no) | 1980-12-15 |
| SE7512464L (sv) | 1976-05-10 |
| FI753135A (US07642317-20100105-C00010.png) | 1976-05-09 |
| GB1531759A (en) | 1978-11-08 |
| CH595014A5 (US07642317-20100105-C00010.png) | 1978-01-31 |
| DK502975A (da) | 1976-05-09 |
| IT1048771B (it) | 1980-12-20 |
| NL163918B (nl) | 1980-05-16 |
| IE42756L (en) | 1976-05-08 |
| FR2290788A1 (fr) | 1976-06-04 |
| DE2453122A1 (de) | 1976-05-20 |
| NL7513106A (nl) | 1976-05-11 |
| AU8642975A (en) | 1976-06-17 |
| ATA834475A (de) | 1978-07-15 |
| SE411283B (sv) | 1979-12-10 |
| AT348592B (de) | 1979-02-26 |
| BE835385A (fr) | 1976-05-07 |
| NL163918C (nl) | 1980-10-15 |
| FR2290788B1 (US07642317-20100105-C00010.png) | 1979-05-04 |
| JPS5171046A (US07642317-20100105-C00010.png) | 1976-06-19 |
| AU473205B2 (en) | 1976-06-17 |
| LU73747A1 (US07642317-20100105-C00010.png) | 1976-09-06 |
| NO143687C (no) | 1981-03-25 |
| NO753740L (US07642317-20100105-C00010.png) | 1976-05-11 |
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