JPS6420796A - Time switch circuit - Google Patents
Time switch circuitInfo
- Publication number
- JPS6420796A JPS6420796A JP17801587A JP17801587A JPS6420796A JP S6420796 A JPS6420796 A JP S6420796A JP 17801587 A JP17801587 A JP 17801587A JP 17801587 A JP17801587 A JP 17801587A JP S6420796 A JPS6420796 A JP S6420796A
- Authority
- JP
- Japan
- Prior art keywords
- data
- reading
- time
- memory
- time slot
- 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.)
- Granted
Links
Landscapes
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
Abstract
PURPOSE:To prevent a nonconformity that data in a time slot are re-written during reading and the data destroyed by changing over respectively one side memory for reading and the other one for writing, at the time of reading the data in the initial part of one frame data to be outputted of a time slot. CONSTITUTION:A write read switching means 100 is provided, and a switching timing by the instruction of a memory 6A which in made writable by a write instructing signal is delayed by a delay time (tau) from a switching timing instructed by a memory 6B which is made readable by a read instructing signal. Accordingly, during a time to cause a lag by the delay, one side memory 6A is exclusively used for the writing and the other side memory 6B for a reading without fail. Namely, since the period to cause the lag is equivalent to the time of a data reading in the time slot of the initial part of the data of one frame to be outputted, such a nonconformity that the data to be inserted into the time slot are re-written while reading at the memory is not caused.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62178015A JP2637105B2 (en) | 1987-07-16 | 1987-07-16 | Time switch circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62178015A JP2637105B2 (en) | 1987-07-16 | 1987-07-16 | Time switch circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6420796A true JPS6420796A (en) | 1989-01-24 |
JP2637105B2 JP2637105B2 (en) | 1997-08-06 |
Family
ID=16041074
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62178015A Expired - Fee Related JP2637105B2 (en) | 1987-07-16 | 1987-07-16 | Time switch circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2637105B2 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59226593A (en) * | 1983-06-08 | 1984-12-19 | Iwatsu Electric Co Ltd | Time division type switch circuit |
-
1987
- 1987-07-16 JP JP62178015A patent/JP2637105B2/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59226593A (en) * | 1983-06-08 | 1984-12-19 | Iwatsu Electric Co Ltd | Time division type switch circuit |
Also Published As
Publication number | Publication date |
---|---|
JP2637105B2 (en) | 1997-08-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |