JPS54109709A - Verification system - Google Patents
Verification systemInfo
- Publication number
- JPS54109709A JPS54109709A JP1658878A JP1658878A JPS54109709A JP S54109709 A JPS54109709 A JP S54109709A JP 1658878 A JP1658878 A JP 1658878A JP 1658878 A JP1658878 A JP 1658878A JP S54109709 A JPS54109709 A JP S54109709A
- Authority
- JP
- Japan
- Prior art keywords
- operator
- voice
- converted
- transmitted
- digital signal
- 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 enable the iterruption of the operator for the timedivision electronic exchange by connecting the 3-terminal trunk to the time switch via the coder/ decoder.
CONSTITUTION: The voice of subscriber A is supplied to time switch T1 in the form of the digital signal via the A/D conversion function of coder/decoder CODEC. This digital signal is then converted into the analog signal through CODECc, supplied to 3-terminal trunk TWT, then distributed to incoming circuit j and k, and also converted into the digital signal to be delivered to outgoing circuit n of subscriber B as well as to outgoing circuit r of the operator. Each of these delivered digital signals is converted to the analog signal through CODECb and f to be transmitted to B and the operator. In the same way, the voice of B is transmitted to A and the operator, and the voice of the operator is transmitted to A and B.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1658878A JPS54109709A (en) | 1978-02-17 | 1978-02-17 | Verification system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1658878A JPS54109709A (en) | 1978-02-17 | 1978-02-17 | Verification system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54109709A true JPS54109709A (en) | 1979-08-28 |
Family
ID=11920424
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1658878A Pending JPS54109709A (en) | 1978-02-17 | 1978-02-17 | Verification system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54109709A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57154964A (en) * | 1981-03-19 | 1982-09-24 | Fujitsu Ltd | Call monitoring system |
JPS59165555A (en) * | 1983-03-09 | 1984-09-18 | Nec Corp | Circuit monitoring system |
-
1978
- 1978-02-17 JP JP1658878A patent/JPS54109709A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57154964A (en) * | 1981-03-19 | 1982-09-24 | Fujitsu Ltd | Call monitoring system |
JPS59165555A (en) * | 1983-03-09 | 1984-09-18 | Nec Corp | Circuit monitoring system |
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