FR2245128B1 - - Google Patents
Info
- Publication number
- FR2245128B1 FR2245128B1 FR7431078A FR7431078A FR2245128B1 FR 2245128 B1 FR2245128 B1 FR 2245128B1 FR 7431078 A FR7431078 A FR 7431078A FR 7431078 A FR7431078 A FR 7431078A FR 2245128 B1 FR2245128 B1 FR 2245128B1
- Authority
- FR
- France
- 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
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
-
- 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
- H03H9/56—Monolithic crystal filters
- H03H9/566—Electric coupling means therefor
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
- Filters And Equalizers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19732347685 DE2347685C3 (de) | 1973-09-21 | Bandsperre für elektrische Schwingungen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2245128A1 FR2245128A1 (xx) | 1975-04-18 |
| FR2245128B1 true FR2245128B1 (xx) | 1978-11-24 |
Family
ID=5893324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7431078A Expired FR2245128B1 (xx) | 1973-09-21 | 1974-09-13 |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS5525736B2 (xx) |
| AT (1) | AT346388B (xx) |
| BE (1) | BE820166A (xx) |
| FR (1) | FR2245128B1 (xx) |
| GB (1) | GB1479171A (xx) |
| IT (1) | IT1021493B (xx) |
| NL (1) | NL7412500A (xx) |
| SE (1) | SE7411869L (xx) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5885612A (ja) * | 1981-11-17 | 1983-05-23 | Tohoku Metal Ind Ltd | エツジモ−ドセラミツクフイルタ |
| JPS6426309A (en) * | 1987-07-21 | 1989-01-27 | Matsushita Electric Works Ltd | Box assembly having stepped rim |
-
1974
- 1974-09-09 GB GB39238/74A patent/GB1479171A/en not_active Expired
- 1974-09-13 FR FR7431078A patent/FR2245128B1/fr not_active Expired
- 1974-09-18 IT IT27422/74A patent/IT1021493B/it active
- 1974-09-19 AT AT754574A patent/AT346388B/de not_active IP Right Cessation
- 1974-09-20 SE SE7411869A patent/SE7411869L/xx unknown
- 1974-09-20 JP JP10870474A patent/JPS5525736B2/ja not_active Expired
- 1974-09-20 NL NL7412500A patent/NL7412500A/xx unknown
- 1974-09-20 BE BE148748A patent/BE820166A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5078247A (xx) | 1975-06-26 |
| FR2245128A1 (xx) | 1975-04-18 |
| IT1021493B (it) | 1978-01-30 |
| AT346388B (de) | 1978-11-10 |
| NL7412500A (nl) | 1975-03-25 |
| JPS5525736B2 (xx) | 1980-07-08 |
| GB1479171A (en) | 1977-07-06 |
| DE2347685B2 (de) | 1976-01-22 |
| BE820166A (fr) | 1975-01-16 |
| AU7354274A (en) | 1976-03-25 |
| ATA754574A (de) | 1978-03-15 |
| DE2347685A1 (de) | 1975-04-17 |
| SE7411869L (xx) | 1975-03-24 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |