NL49647C - - Google Patents
Info
- Publication number
- NL49647C NL49647C NL49647DA NL49647C NL 49647 C NL49647 C NL 49647C NL 49647D A NL49647D A NL 49647DA NL 49647 C NL49647 C NL 49647C
- Authority
- NL
- Netherlands
Links
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
- H03H9/0023—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns, or networks having balanced input and output
- H03H9/0095—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns, or networks having balanced input and output using bulk acoustic wave devices
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/02—Details
- H03H9/05—Holders or supports
- H03H9/0504—Holders or supports for bulk acoustic wave devices
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
- H03H9/21—Crystal tuning forks
- H03H9/215—Crystal tuning forks consisting of quartz
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/46—Filters
- H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
- H03H9/56—Monolithic crystal filters
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/46—Filters
- H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
- H03H9/58—Multiple crystal filters
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Surgical Instruments (AREA)
- Electrotherapy Devices (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3180536A GB467724A (en) | 1936-11-20 | 1936-11-20 | Piezo electric crystal apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL49647C true NL49647C (OSRAM) |
Family
ID=10328672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL49647D NL49647C (OSRAM) | 1936-11-20 |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE750584C (OSRAM) |
| FR (1) | FR817131A (OSRAM) |
| GB (1) | GB467724A (OSRAM) |
| NL (1) | NL49647C (OSRAM) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE753524C (de) * | 1940-08-02 | 1952-10-27 | Siemens & Halske A G | Piezoelektrischer Schwingkristall, der zwischen Schneiden, Spitzen oder Kugeln gelagert ist |
| FR2257153B1 (OSRAM) * | 1974-01-09 | 1978-06-30 | Suwa Seikosha Kk | |
| FR2363825A1 (fr) * | 1976-09-07 | 1978-03-31 | Seikosha Kk | Oscillateur a quartz, et procede pour sa fabrication |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE484340C (de) * | 1927-03-30 | 1929-10-14 | Lorenz Akt Ges C | Quarz-Oszillator |
| US2005083A (en) * | 1927-07-07 | 1935-06-18 | Rca Corp | Filter |
| DE494716C (de) * | 1927-07-08 | 1930-04-29 | Elektrotechnischer Trust Der S | Piezoelektrischer Schwingungserzeuger |
| DE596744C (de) * | 1932-07-22 | 1934-05-09 | Telefunken Gmbh | Schwingquarzanordnung |
| US1978188A (en) * | 1933-01-06 | 1934-10-23 | Bell Telephone Labor Inc | Piezoelectric crystal apparatus |
-
0
- NL NL49647D patent/NL49647C/xx active
-
1936
- 1936-11-20 GB GB3180536A patent/GB467724A/en not_active Expired
- 1936-12-18 DE DEI56657D patent/DE750584C/de not_active Expired
- 1936-12-31 FR FR817131D patent/FR817131A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR817131A (fr) | 1937-08-26 |
| DE750584C (de) | 1945-01-19 |
| GB467724A (en) | 1937-06-22 |