JPS5477040A - Data transmitter - Google Patents
Data transmitterInfo
- Publication number
- JPS5477040A JPS5477040A JP14387177A JP14387177A JPS5477040A JP S5477040 A JPS5477040 A JP S5477040A JP 14387177 A JP14387177 A JP 14387177A JP 14387177 A JP14387177 A JP 14387177A JP S5477040 A JPS5477040 A JP S5477040A
- Authority
- JP
- Japan
- Prior art keywords
- answer
- reception
- code
- transmission
- detects
- 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
- Small-Scale Networks (AREA)
- Communication Control (AREA)
Abstract
PURPOSE: To improve reliability by adding the procedure of making a reception answer temporarily before the transmission and reception of data to transmission procedures on the answerback system.
CONSTITUTION: If reception answer detector 13 detects a reception answer-back signal in an answer waiting mode while transmitter 1 at the center side is receiving an output command from CPU3, ST control circuit 18 sends data from transmission memory 29 via gate 26 and also sends its check code from check-code generator 21 via gate 25. As a result, its mode changes into the end waiting one of supervising the reception data of the transmitter at the terminal side. Once detector 14 detects the end code, CE control part 27 is informed of the end. When detector 13 detects the answer-back signal indicating the continuation of the operation, code generator 20 sends out the transmission request code and the mode changes into the end waiting one again.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14387177A JPS5477040A (en) | 1977-12-02 | 1977-12-02 | Data transmitter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14387177A JPS5477040A (en) | 1977-12-02 | 1977-12-02 | Data transmitter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5477040A true JPS5477040A (en) | 1979-06-20 |
Family
ID=15348927
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14387177A Pending JPS5477040A (en) | 1977-12-02 | 1977-12-02 | Data transmitter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5477040A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5646351A (en) * | 1979-09-21 | 1981-04-27 | Ricoh Co Ltd | Serial interface device |
JPS5759233A (en) * | 1980-09-29 | 1982-04-09 | Hitachi Ltd | Signal transmitting circuit |
JPS5834651A (en) * | 1981-08-24 | 1983-03-01 | Nec Corp | Communication control system of terminal equipment |
JPS60198942A (en) * | 1984-03-22 | 1985-10-08 | Nec Corp | Remote magnetic tape control system |
JPS61278956A (en) * | 1985-06-04 | 1986-12-09 | Yokogawa Hewlett Packard Ltd | Serial bus system |
-
1977
- 1977-12-02 JP JP14387177A patent/JPS5477040A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5646351A (en) * | 1979-09-21 | 1981-04-27 | Ricoh Co Ltd | Serial interface device |
JPS5759233A (en) * | 1980-09-29 | 1982-04-09 | Hitachi Ltd | Signal transmitting circuit |
JPS5834651A (en) * | 1981-08-24 | 1983-03-01 | Nec Corp | Communication control system of terminal equipment |
JPS60198942A (en) * | 1984-03-22 | 1985-10-08 | Nec Corp | Remote magnetic tape control system |
JPS61278956A (en) * | 1985-06-04 | 1986-12-09 | Yokogawa Hewlett Packard Ltd | Serial bus system |
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