BE539919A - - Google Patents
Info
- Publication number
- BE539919A BE539919A BE539919DA BE539919A BE 539919 A BE539919 A BE 539919A BE 539919D A BE539919D A BE 539919DA BE 539919 A BE539919 A BE 539919A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/12—Arrangements for reducing cross-talk between channels
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C1/00—Amplitude modulation
- H03C1/02—Details
- H03C1/06—Modifications of modulator to reduce distortion, e.g. by feedback, and clearly applicable to more than one type of modulator
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- 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
- H03H9/581—Multiple crystal filters comprising ceramic piezoelectric layers
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Ceramic Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Transmitters (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
- Compositions Of Oxide Ceramics (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US776109XA | 1954-07-19 | 1954-07-19 | |
| US867038XA | 1957-01-08 | 1957-01-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE539919A true BE539919A (cs) |
Family
ID=26759472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE539919D BE539919A (cs) | 1954-07-19 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE539919A (cs) |
| GB (2) | GB776109A (cs) |
-
0
- BE BE539919D patent/BE539919A/xx unknown
-
1955
- 1955-07-15 GB GB20529/55A patent/GB776109A/en not_active Expired
-
1958
- 1958-01-07 GB GB656/58A patent/GB867038A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB776109A (en) | 1957-06-05 |
| GB867038A (en) | 1961-05-03 |