FR812431A - Improvements to communication systems - Google Patents
Improvements to communication systemsInfo
- Publication number
- FR812431A FR812431A FR812431DA FR812431A FR 812431 A FR812431 A FR 812431A FR 812431D A FR812431D A FR 812431DA FR 812431 A FR812431 A FR 812431A
- Authority
- FR
- France
- Prior art keywords
- communication systems
- systems
- communication
- 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
- H04L25/00—Baseband systems
- H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
- H04L25/40—Transmitting circuits; Receiving circuits
- H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
- H04L25/4902—Pulse width modulation; Pulse position modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
- H04L25/40—Transmitting circuits; Receiving circuits
- H04L25/42—Transmitting circuits; Receiving circuits using mechanical distributors
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Electrotherapy Devices (AREA)
- Transmitters (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US5768A US2079440A (en) | 1935-02-09 | 1935-02-09 | Communication system |
Publications (1)
Publication Number | Publication Date |
---|---|
FR812431A true FR812431A (en) | 1937-05-10 |
Family
ID=10219603
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR812431D Expired FR812431A (en) | 1935-02-09 | 1936-09-19 | Improvements to communication systems |
Country Status (4)
Country | Link |
---|---|
US (1) | US2079440A (en) |
DE (1) | DE700868C (en) |
FR (1) | FR812431A (en) |
GB (1) | GB478447A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2434681A (en) * | 1943-02-13 | 1948-01-20 | Bell Telephone Labor Inc | Remotely controlled electrical calculator |
-
1935
- 1935-02-09 US US5768A patent/US2079440A/en not_active Expired - Lifetime
-
1936
- 1936-09-12 GB GB24935/36A patent/GB478447A/en not_active Expired
- 1936-09-17 DE DE1936I0055963 patent/DE700868C/en not_active Expired
- 1936-09-19 FR FR812431D patent/FR812431A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE700868C (en) | 1941-01-02 |
US2079440A (en) | 1937-05-04 |
GB478447A (en) | 1938-01-19 |
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