NL61184C - - Google Patents
Info
- Publication number
- NL61184C NL61184C NL61184DA NL61184C NL 61184 C NL61184 C NL 61184C NL 61184D A NL61184D A NL 61184DA NL 61184 C NL61184 C NL 61184C
- 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 devices; Electromechanical resonators
- H03H9/46—Filters
- H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
- H03H9/545—Filters comprising resonators of piezoelectric or electrostrictive material including active elements
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
- H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
- H03B5/34—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being vacuum tube
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C1/00—Amplitude modulation
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/10—Angle modulation by means of variable impedance
- H03C3/12—Angle modulation by means of variable impedance by means of a variable reactive element
- H03C3/14—Angle modulation by means of variable impedance by means of a variable reactive element simulated by circuit comprising active element with at least three electrodes, e.g. reactance-tube circuit
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Oscillators With Electromechanical Resonators (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US335963A US2274486A (en) | 1940-05-18 | 1940-05-18 | Piezoelectric resonator circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL61184C true NL61184C (fr) |
Family
ID=23313988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL61184D NL61184C (fr) | 1940-05-18 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2274486A (fr) |
| GB (1) | GB546319A (fr) |
| NL (1) | NL61184C (fr) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2424246A (en) * | 1943-09-16 | 1947-07-22 | Bell Telephone Labor Inc | Frequency-modulated crystal oscillator |
| US2577297A (en) * | 1944-01-22 | 1951-12-04 | Antranikian Haig | Signaling system |
| US2539268A (en) * | 1945-04-25 | 1951-01-23 | Motorola Inc | Oscillator |
| US2881390A (en) * | 1952-04-21 | 1959-04-07 | Gen Electric | Piezo-electric type frequency changer |
| NL176583B (nl) * | 1953-03-04 | Lummus Co | Werkwijze voor de bereiding van een straalmotorbrandstof. | |
| US2872577A (en) * | 1956-08-13 | 1959-02-03 | Robert W Hart | High frequency integrating signal detector |
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0
- NL NL61184D patent/NL61184C/xx active
-
1940
- 1940-05-18 US US335963A patent/US2274486A/en not_active Expired - Lifetime
-
1941
- 1941-05-19 GB GB6427/41A patent/GB546319A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2274486A (en) | 1942-02-24 |
| GB546319A (en) | 1942-07-07 |