JPS5784645A - By-pass circuit - Google Patents
By-pass circuitInfo
- Publication number
- JPS5784645A JPS5784645A JP55161744A JP16174480A JPS5784645A JP S5784645 A JPS5784645 A JP S5784645A JP 55161744 A JP55161744 A JP 55161744A JP 16174480 A JP16174480 A JP 16174480A JP S5784645 A JPS5784645 A JP S5784645A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- synchronism
- communication controller
- circuit
- reception 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/0079—Receiver details
- H04L7/0083—Receiver details taking measures against momentary loss of synchronisation, e.g. inhibiting the synchronisation, using idle words or using redundant clocks
Landscapes
- Small-Scale Networks (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
PURPOSE:To suppress the effet and extension to a communication controller and terminator on and after the next stage, by by-passing the communication controller when the out of synchronism of frame of a reception signal is caused. CONSTITUTION:A signal 9 which is normally selected at a selection circuit 15 in a transmission section 4 and processed at a data processor 6 is transmitted. When the out of synchronism of the reception signal is detected at a synchronizing circuit 5, the selection circuit 15 is controlled with an out-of-synchronism signal 10, its forming signal 16, and a selecting circuit control signal 8 to transmit a reception signal 7 transmitted via a delay circuit 3. Thus, if the out of synchronism is caused in the communication controller, the communication controller is by-passed for transmission.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55161744A JPS5784645A (en) | 1980-11-17 | 1980-11-17 | By-pass circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55161744A JPS5784645A (en) | 1980-11-17 | 1980-11-17 | By-pass circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5784645A true JPS5784645A (en) | 1982-05-27 |
JPS6367377B2 JPS6367377B2 (en) | 1988-12-26 |
Family
ID=15741054
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55161744A Granted JPS5784645A (en) | 1980-11-17 | 1980-11-17 | By-pass circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5784645A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59172864A (en) * | 1983-02-07 | 1984-09-29 | エヌ・ベー・フイリップス・フルーイランペンファブリケン | Time division multiplex loop electric communication system |
JPS60232738A (en) * | 1984-05-04 | 1985-11-19 | Iwatsu Electric Co Ltd | Loop type transmission system |
JPS61255142A (en) * | 1985-05-08 | 1986-11-12 | Nec Corp | Bit addition device |
JPS6462929A (en) * | 1987-09-02 | 1989-03-09 | Nec Corp | Repeater |
JPH02143737A (en) * | 1988-11-25 | 1990-06-01 | Nec Corp | Digital radio repeater |
JPH0433438A (en) * | 1990-05-30 | 1992-02-04 | Fujitsu Ltd | Transmission line changeover system for local area network |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4940640A (en) * | 1972-08-24 | 1974-04-16 | ||
JPS5231629A (en) * | 1975-06-20 | 1977-03-10 | Fuji Electric Co Ltd | Data communiction system |
JPS5336118A (en) * | 1976-09-16 | 1978-04-04 | Fujitsu Ltd | Loop transmission system |
-
1980
- 1980-11-17 JP JP55161744A patent/JPS5784645A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4940640A (en) * | 1972-08-24 | 1974-04-16 | ||
JPS5231629A (en) * | 1975-06-20 | 1977-03-10 | Fuji Electric Co Ltd | Data communiction system |
JPS5336118A (en) * | 1976-09-16 | 1978-04-04 | Fujitsu Ltd | Loop transmission system |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59172864A (en) * | 1983-02-07 | 1984-09-29 | エヌ・ベー・フイリップス・フルーイランペンファブリケン | Time division multiplex loop electric communication system |
JPS60232738A (en) * | 1984-05-04 | 1985-11-19 | Iwatsu Electric Co Ltd | Loop type transmission system |
JPS61255142A (en) * | 1985-05-08 | 1986-11-12 | Nec Corp | Bit addition device |
JPH0548977B2 (en) * | 1985-05-08 | 1993-07-23 | Nippon Electric Co | |
JPS6462929A (en) * | 1987-09-02 | 1989-03-09 | Nec Corp | Repeater |
JPH02143737A (en) * | 1988-11-25 | 1990-06-01 | Nec Corp | Digital radio repeater |
JPH0433438A (en) * | 1990-05-30 | 1992-02-04 | Fujitsu Ltd | Transmission line changeover system for local area network |
Also Published As
Publication number | Publication date |
---|---|
JPS6367377B2 (en) | 1988-12-26 |
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