NL174791B - PIEZO ELECTRIC FILTER WITH A VERY NARROW BAND. - Google Patents
PIEZO ELECTRIC FILTER WITH A VERY NARROW BAND.Info
- Publication number
- NL174791B NL174791B NLAANVRAGE7405011,A NL7405011A NL174791B NL 174791 B NL174791 B NL 174791B NL 7405011 A NL7405011 A NL 7405011A NL 174791 B NL174791 B NL 174791B
- Authority
- NL
- Netherlands
- Prior art keywords
- narrow band
- piezo electric
- electric filter
- filter
- piezo
- 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
- H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
- H03H9/542—Filters comprising resonators of piezoelectric or electrostrictive material including passive elements
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NLAANVRAGE7405011,A NL174791C (en) | 1974-04-11 | 1974-04-11 | PIEZO ELECTRIC FILTER WITH A VERY NARROW BAND. |
GB13547/75A GB1499774A (en) | 1974-04-11 | 1975-04-02 | Filter chain |
DE2514403A DE2514403C2 (en) | 1974-04-11 | 1975-04-02 | Semi-monolithic filter |
JP50042385A JPS5830767B2 (en) | 1974-04-11 | 1975-04-09 | filter chain |
SE7504134A SE408513B (en) | 1974-04-11 | 1975-04-10 | FILTER CHAIN |
FR7511444A FR2275068A1 (en) | 1974-04-11 | 1975-04-11 | FILTER CHAIN |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NLAANVRAGE7405011,A NL174791C (en) | 1974-04-11 | 1974-04-11 | PIEZO ELECTRIC FILTER WITH A VERY NARROW BAND. |
Publications (3)
Publication Number | Publication Date |
---|---|
NL7405011A NL7405011A (en) | 1975-10-14 |
NL174791B true NL174791B (en) | 1984-03-01 |
NL174791C NL174791C (en) | 1984-08-01 |
Family
ID=19821162
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NLAANVRAGE7405011,A NL174791C (en) | 1974-04-11 | 1974-04-11 | PIEZO ELECTRIC FILTER WITH A VERY NARROW BAND. |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS5830767B2 (en) |
DE (1) | DE2514403C2 (en) |
FR (1) | FR2275068A1 (en) |
GB (1) | GB1499774A (en) |
NL (1) | NL174791C (en) |
SE (1) | SE408513B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52101337U (en) * | 1976-01-28 | 1977-08-01 | ||
EP0328602B1 (en) * | 1987-08-12 | 1992-06-17 | AVL Gesellschaft für Verbrennungskraftmaschinen und Messtechnik mbH.Prof.Dr.Dr.h.c. Hans List | Device for introducing fuel into the combustion chamber of an internal combustion engine |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3585537A (en) * | 1969-02-10 | 1971-06-15 | Bell Telephone Labor Inc | Electric wave filters |
US3716808A (en) * | 1971-05-20 | 1973-02-13 | Motorola Inc | Bandpass filter including monolithic crystal elements with resonating portions selected for symmetrical response |
FR2186175A5 (en) * | 1972-05-24 | 1974-01-04 | Thomson Csf |
-
1974
- 1974-04-11 NL NLAANVRAGE7405011,A patent/NL174791C/en not_active IP Right Cessation
-
1975
- 1975-04-02 GB GB13547/75A patent/GB1499774A/en not_active Expired
- 1975-04-02 DE DE2514403A patent/DE2514403C2/en not_active Expired
- 1975-04-09 JP JP50042385A patent/JPS5830767B2/en not_active Expired
- 1975-04-10 SE SE7504134A patent/SE408513B/en unknown
- 1975-04-11 FR FR7511444A patent/FR2275068A1/en active Granted
Also Published As
Publication number | Publication date |
---|---|
NL174791C (en) | 1984-08-01 |
FR2275068B1 (en) | 1977-04-15 |
DE2514403A1 (en) | 1976-03-04 |
JPS5830767B2 (en) | 1983-07-01 |
SE7504134L (en) | 1975-10-13 |
NL7405011A (en) | 1975-10-14 |
DE2514403C2 (en) | 1984-12-20 |
GB1499774A (en) | 1978-02-01 |
JPS50138754A (en) | 1975-11-05 |
FR2275068A1 (en) | 1976-01-09 |
SE408513B (en) | 1979-06-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BC | A request for examination has been filed | ||
V1 | Lapsed because of non-payment of the annual fee |