JPS642498A - Time slot replacing circuit - Google Patents
Time slot replacing circuitInfo
- Publication number
- JPS642498A JPS642498A JP15854887A JP15854887A JPS642498A JP S642498 A JPS642498 A JP S642498A JP 15854887 A JP15854887 A JP 15854887A JP 15854887 A JP15854887 A JP 15854887A JP S642498 A JPS642498 A JP S642498A
- Authority
- JP
- Japan
- Prior art keywords
- memory
- time slots
- output
- replaced
- frequency
- 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
Landscapes
- Time-Division Multiplex Systems (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
Abstract
PURPOSE: To reduce the scale of hardware by allowing an exchange and a transmitter to use one memory for data exchange by switching it by time slots in a system wherein a single buffer system and a double buffer system coexist.
CONSTITUTION: When time slots of a multiplex signal arriving as a data input are replaced on a double basis, the value of the output of a two-frequency- dividing counter 5 is added to the value of a sequential counter 3 to generate a write address and the data is written in the memory 14 for data exchange. Further, when time slots are replaced on a single buffer basis, the output of the two-frequency-dividing counter 5 is inhibited by an inhibit gate 8 with the output of a memory 7 for single buffer/double buffer switching indication and written in one of two divided memory areas. When time slots are replaced on the double buffer basis on a read side, the value of the two-frequency-dividing counter 5 is added to the output of a memory 4 for address control to read the memory 1 for data exchange, thereby replacing the time slots.
COPYRIGHT: (C)1989,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15854887A JPS642498A (en) | 1987-06-24 | 1987-06-24 | Time slot replacing circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15854887A JPS642498A (en) | 1987-06-24 | 1987-06-24 | Time slot replacing circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH012498A JPH012498A (en) | 1989-01-06 |
JPS642498A true JPS642498A (en) | 1989-01-06 |
Family
ID=15674114
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15854887A Pending JPS642498A (en) | 1987-06-24 | 1987-06-24 | Time slot replacing circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS642498A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07193844A (en) * | 1993-12-27 | 1995-07-28 | Nec Corp | Time switch |
-
1987
- 1987-06-24 JP JP15854887A patent/JPS642498A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07193844A (en) * | 1993-12-27 | 1995-07-28 | Nec Corp | Time switch |
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