FR931429A - Improvements to radio-telegraph systems - Google Patents
Improvements to radio-telegraph systemsInfo
- Publication number
- FR931429A FR931429A FR931429DA FR931429A FR 931429 A FR931429 A FR 931429A FR 931429D A FR931429D A FR 931429DA FR 931429 A FR931429 A FR 931429A
- Authority
- FR
- France
- Prior art keywords
- radio
- telegraph systems
- telegraph
- systems
- Prior art date
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/02—Channels characterised by the type of signal
- H04L5/06—Channels characterised by the type of signal the signals being represented by different frequencies
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
- H04L27/06—Demodulator circuits; Receiver circuits
- H04L27/063—Superheterodyne receivers
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2737439A GB535388A (en) | 1939-10-06 | 1939-10-06 | Improvements in or relating to radio telegraph systems |
Publications (1)
Publication Number | Publication Date |
---|---|
FR931429A true FR931429A (en) | 1948-02-23 |
Family
ID=10258570
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR931429D Expired FR931429A (en) | 1939-10-06 | 1946-07-26 | Improvements to radio-telegraph systems |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR931429A (en) |
GB (1) | GB535388A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3317670A (en) * | 1963-05-28 | 1967-05-02 | Bell Telephone Labor Inc | Receiver for detecting supervisory tones superimposed on fsk binary data signals |
-
1939
- 1939-10-06 GB GB2737439A patent/GB535388A/en not_active Expired
-
1946
- 1946-07-26 FR FR931429D patent/FR931429A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3317670A (en) * | 1963-05-28 | 1967-05-02 | Bell Telephone Labor Inc | Receiver for detecting supervisory tones superimposed on fsk binary data signals |
Also Published As
Publication number | Publication date |
---|---|
GB535388A (en) | 1941-04-08 |
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