FR176416A - - Google Patents
Info
- Publication number
- FR176416A FR176416A FR176416DA FR176416A FR 176416 A FR176416 A FR 176416A FR 176416D A FR176416D A FR 176416DA FR 176416 A FR176416 A FR 176416A
- 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.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
- H03J7/02—Automatic frequency control
- H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
- H03J7/042—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant with reactance tube
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/12—Frequency diversity
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
- H04L27/14—Demodulator circuits; Receiver circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
- H04L27/16—Frequency regulation arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Superheterodyne Receivers (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL269957X | 1947-12-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR176416A true FR176416A (US06262066-20010717-C00424.png) |
Family
ID=19781884
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR176416D Active FR176416A (US06262066-20010717-C00424.png) | 1947-12-13 | ||
| FR976416D Expired FR976416A (fr) | 1947-12-13 | 1948-12-10 | Récepteur superhétérodyne pour la réception de signaux télégraphiques caractérisés par des déviations de fréquence |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR976416D Expired FR976416A (fr) | 1947-12-13 | 1948-12-10 | Récepteur superhétérodyne pour la réception de signaux télégraphiques caractérisés par des déviations de fréquence |
Country Status (5)
-
0
- FR FR176416D patent/FR176416A/fr active Active
- BE BE486276D patent/BE486276A/xx unknown
-
1948
- 1948-12-10 FR FR976416D patent/FR976416A/fr not_active Expired
- 1948-12-10 GB GB31994/48A patent/GB681543A/en not_active Expired
- 1948-12-11 CH CH269957D patent/CH269957A/de unknown
- 1948-12-24 DE DEP26482D patent/DE807959C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR976416A (fr) | 1951-03-19 |
| CH269957A (de) | 1950-07-31 |
| GB681543A (en) | 1952-10-29 |
| DE807959C (de) | 1951-07-09 |
| BE486276A (US06262066-20010717-C00424.png) |
