NL12751C - - Google Patents
Info
- Publication number
- NL12751C NL12751C NL21520A NL21520A NL12751C NL 12751 C NL12751 C NL 12751C NL 21520 A NL21520 A NL 21520A NL 21520 A NL21520 A NL 21520A NL 12751 C NL12751 C NL 12751C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/65—Arrangements characterised by transmission systems for broadcast
- H04H20/67—Common-wave systems, i.e. using separate transmitters operating on substantially the same frequency
-
- 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
- H03B21/00—Generation of oscillations by combining unmodulated signals of different frequencies
- H03B21/01—Generation of oscillations by combining unmodulated signals of different frequencies by beating unmodulated signals of different frequencies
- H03B21/02—Generation of oscillations by combining unmodulated signals of different frequencies by beating unmodulated signals of different frequencies by plural beating, i.e. for frequency synthesis ; Beating in combination with multiplication or division of frequency
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Transmitters (AREA)
- Radio Relay Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB580022A GB195838A (en) | 1922-02-27 | 1922-02-27 | Improvements in high frequency signalling systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL12751C true NL12751C (fr) | 1925-07-15 |
Family
ID=9802842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL21520A NL12751C (fr) | 1922-02-27 | 1922-03-02 |
Country Status (3)
| Country | Link |
|---|---|
| FR (1) | FR549901A (fr) |
| GB (1) | GB195838A (fr) |
| NL (1) | NL12751C (fr) |
-
1922
- 1922-02-27 GB GB580022A patent/GB195838A/en not_active Expired
- 1922-03-02 NL NL21520A patent/NL12751C/xx active
- 1922-04-07 FR FR549901D patent/FR549901A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR549901A (fr) | 1923-02-22 |
| GB195838A (en) | 1923-04-12 |