FR866862A - Electrical communication system - Google Patents
Electrical communication systemInfo
- Publication number
- FR866862A FR866862A FR866862DA FR866862A FR 866862 A FR866862 A FR 866862A FR 866862D A FR866862D A FR 866862DA FR 866862 A FR866862 A FR 866862A
- Authority
- FR
- France
- Prior art keywords
- communication system
- electrical communication
- electrical
- 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
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/22—Automatic control in amplifiers having discharge tubes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/62—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for providing a predistortion of the signal in the transmitter and corresponding correction in the receiver, e.g. for improving the signal/noise ratio
- H04B1/64—Volume compression or expansion arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
-
- 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
- H04L27/08—Amplitude regulation arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Relay Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US283369A US2207711A (en) | 1939-07-08 | 1939-07-08 | Convoy current timing arrangement |
Publications (1)
Publication Number | Publication Date |
---|---|
FR866862A true FR866862A (en) | 1941-09-15 |
Family
ID=23085714
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR866862D Expired FR866862A (en) | 1939-07-08 | 1940-08-24 | Electrical communication system |
Country Status (3)
Country | Link |
---|---|
US (1) | US2207711A (en) |
FR (1) | FR866862A (en) |
NL (1) | NL62781C (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3213200A (en) * | 1960-02-25 | 1965-10-19 | Joseph H Vogelman | Multiple-service communication system |
US3200201A (en) * | 1961-12-29 | 1965-08-10 | Bell Telephone Labor Inc | Interpolation signaling |
US3310631A (en) * | 1963-06-03 | 1967-03-21 | Itt | Communication system for the selective transmission of speech and data |
US3303285A (en) * | 1963-05-29 | 1967-02-07 | Itt | Communication system for the selective transmission of speech and data |
US3311704A (en) * | 1963-06-28 | 1967-03-28 | Ibm | Voice-data multiplexing system for transmitting data during pauses in the voice signals |
US3304372A (en) * | 1963-06-28 | 1967-02-14 | Ibm | Voice-data multiplexing system for transmitting data during pauses in the voice signals |
-
0
- NL NL62781D patent/NL62781C/xx active
-
1939
- 1939-07-08 US US283369A patent/US2207711A/en not_active Expired - Lifetime
-
1940
- 1940-08-24 FR FR866862D patent/FR866862A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL62781C (en) | |
US2207711A (en) | 1940-07-16 |
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