FR2457049A1 - A single cable time switching information transmission system - using respective pulse series for each terminal with unique pulses in series identifying interconnected terminals and carrying information - Google Patents
A single cable time switching information transmission system - using respective pulse series for each terminal with unique pulses in series identifying interconnected terminals and carrying informationInfo
- Publication number
- FR2457049A1 FR2457049A1 FR7912658A FR7912658A FR2457049A1 FR 2457049 A1 FR2457049 A1 FR 2457049A1 FR 7912658 A FR7912658 A FR 7912658A FR 7912658 A FR7912658 A FR 7912658A FR 2457049 A1 FR2457049 A1 FR 2457049A1
- Authority
- FR
- France
- Prior art keywords
- series
- pulse
- terminal
- pulses
- transmission system
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/02—Arrangements for interconnection not involving centralised switching involving a common line for all parties
- H04M9/022—Multiplex systems
- H04M9/025—Time division multiplex systems, e.g. loop systems
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Small-Scale Networks (AREA)
Abstract
In an internal information transmission system using a time switching procedure, several terminals are interconnected by a single cable (S1,...,S69) along which a time base pulse generator transmits successive series of pulses, each series identifying a respective terminal with an additional series serving as a time base. The first pulse (Io) of each series also serves as a time base. A calling terminal is identified by increasing the pulse width of the last pulse (In) of the pulse series associated with that terminal and each subsequent series of pulses has a first reference pulse (I1) immediately following its time base pulse (Io) allocated to carry the information from the calling terminal. The called terminal is identified in the same manner and each series of pulses immediately following the pulse series associated with the called terminal has a reference pulse (I2) immediately following the first reference pulse allocated for carrying information from the called terminal. In a system of 100 terminals 20 independent conversations can be carried on.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7912658A FR2457049A1 (en) | 1979-05-14 | 1979-05-14 | A single cable time switching information transmission system - using respective pulse series for each terminal with unique pulses in series identifying interconnected terminals and carrying information |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7912658A FR2457049A1 (en) | 1979-05-14 | 1979-05-14 | A single cable time switching information transmission system - using respective pulse series for each terminal with unique pulses in series identifying interconnected terminals and carrying information |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2457049A1 true FR2457049A1 (en) | 1980-12-12 |
Family
ID=9225612
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7912658A Pending FR2457049A1 (en) | 1979-05-14 | 1979-05-14 | A single cable time switching information transmission system - using respective pulse series for each terminal with unique pulses in series identifying interconnected terminals and carrying information |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2457049A1 (en) |
-
1979
- 1979-05-14 FR FR7912658A patent/FR2457049A1/en active Pending
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