JPS6441547A - Compressed voice data exchange system - Google Patents
Compressed voice data exchange systemInfo
- Publication number
- JPS6441547A JPS6441547A JP19838487A JP19838487A JPS6441547A JP S6441547 A JPS6441547 A JP S6441547A JP 19838487 A JP19838487 A JP 19838487A JP 19838487 A JP19838487 A JP 19838487A JP S6441547 A JPS6441547 A JP S6441547A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- talking
- station
- path
- relay exchange
- 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
Abstract
PURPOSE:To eliminate need for dividing a digital interface signal line into the talking of its own station and the relay exchange portion by adopting the constitution such that a CODEC and a format conversion section are switched depending whether or not a path is for its own station talking portion or a relay exchange portion so as to eliminate need for an analog interface line. CONSTITUTION:A path discrimination section 4 is provided to a digital relay exchange 1 and the path deciding section 4 decides whether or not the path is for its own station talking portion or a relay exchange portion and a changeover means 7 of a multiplexer 2 is turned to the position show in solid lines in case of the own station talking, the signal is through a digital interface signal line 3 and a CODEC 5 to compress the signal at the sender side into a signal rate of 16Kbps or below and to unpack the signal at the receiver side into a rate of 64Kbps for the talking purpose. In case of relay exchange, the changeover means 7 is turned to the position shown in dotted lines, the signal is through a format conversion section 6 at the reception side to bring the signal of 16Kbps or below into a signal of 64Kbps through the addition of a dummy signal, the result is sent to the exchange 1 via the digital interface signal line 3 and exchanged and then sent to the format exchange section 6 of the multiplexer 2 via the digital interface signal line 3, where the dummy signal is excluded and the signal is restored to the original 16Kbps signal and the result is sent to an opposite station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19838487A JPS6441547A (en) | 1987-08-07 | 1987-08-07 | Compressed voice data exchange system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19838487A JPS6441547A (en) | 1987-08-07 | 1987-08-07 | Compressed voice data exchange system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6441547A true JPS6441547A (en) | 1989-02-13 |
Family
ID=16390228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19838487A Pending JPS6441547A (en) | 1987-08-07 | 1987-08-07 | Compressed voice data exchange system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6441547A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05136897A (en) * | 1991-03-18 | 1993-06-01 | Fujitsu Ltd | Trunk line identification system |
-
1987
- 1987-08-07 JP JP19838487A patent/JPS6441547A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05136897A (en) * | 1991-03-18 | 1993-06-01 | Fujitsu Ltd | Trunk line identification system |
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