CH270402A - Installation de télécommunication électrique. - Google Patents
Installation de télécommunication électrique.Info
- Publication number
- CH270402A CH270402A CH270402DA CH270402A CH 270402 A CH270402 A CH 270402A CH 270402D A CH270402D A CH 270402DA CH 270402 A CH270402 A CH 270402A
- Authority
- CH
- Switzerland
- Prior art keywords
- telecommunications installation
- electrical telecommunications
- electrical
- installation
- telecommunications
- Prior art date
Links
- 238000009434 installation Methods 0.000 title 1
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
- 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
- H04M11/062—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors using different frequency bands for speech and other data
 
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title | 
|---|---|---|---|
| FR270402X | 1941-01-31 | 
Publications (1)
| Publication Number | Publication Date | 
|---|---|
| CH270402A true CH270402A (fr) | 1950-08-31 | 
Family
ID=8885881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date | 
|---|---|---|---|
| CH270402D CH270402A (fr) | 1941-01-31 | 1947-10-03 | Installation de télécommunication électrique. | 
Country Status (4)
| Country | Link | 
|---|---|
| US (1) | US2426223A (en:Method) | 
| BE (1) | BE480134A (en:Method) | 
| CH (1) | CH270402A (en:Method) | 
| FR (1) | FR959321A (en:Method) | 
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title | 
|---|---|---|---|---|
| KR102342740B1 (ko) * | 2014-09-15 | 2021-12-23 | 삼성전자주식회사 | 신호 송수신 방법 및 장치 | 
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title | 
|---|---|---|---|---|
| US1621557A (en) * | 1923-06-27 | 1927-03-22 | American Telephone & Telegraph | Combined resonant shunt device for telegraph circuits | 
| US2106352A (en) * | 1935-03-15 | 1938-01-25 | Bell Telephone Labor Inc | Teletypewriter station | 
| BE435784A (en:Method) * | 1938-08-04 | |||
| US2254342A (en) * | 1939-11-02 | 1941-09-02 | Teletype Corp | Receiver selection system | 
- 
        0
        - FR FR959321D patent/FR959321A/fr not_active Expired
- BE BE480134D patent/BE480134A/xx unknown
 
- 
        1943
        - 1943-04-13 US US482904A patent/US2426223A/en not_active Expired - Lifetime
 
- 
        1947
        - 1947-10-03 CH CH270402D patent/CH270402A/fr unknown
 
Also Published As
| Publication number | Publication date | 
|---|---|
| FR959321A (en:Method) | 1950-03-29 | 
| US2426223A (en) | 1947-08-26 | 
| BE480134A (en:Method) | 
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