JPS6474842A - Method and device for switching transmission data length in data transfer - Google Patents
Method and device for switching transmission data length in data transferInfo
- Publication number
- JPS6474842A JPS6474842A JP23115987A JP23115987A JPS6474842A JP S6474842 A JPS6474842 A JP S6474842A JP 23115987 A JP23115987 A JP 23115987A JP 23115987 A JP23115987 A JP 23115987A JP S6474842 A JPS6474842 A JP S6474842A
- Authority
- JP
- Japan
- Prior art keywords
- data
- data length
- transfer
- length
- errors
- 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
- Detection And Prevention Of Errors In Transmission (AREA)
Abstract
PURPOSE:To improve the efficiency of data transfer, by detecting a ratio of error generation in transferring data, and switching length of information to be transferred corresponding to the quality of a line to be used based on a detected result. CONSTITUTION:Transfer data sent from a CPU13 is inputted to a communication control part 14, and is counted by a transmission counter 15. The counter 15 outputs a count value to the control part 14, and is reset at every value M. A data length setting part 18 inputs the transfer error information of a terminal equipment 12, and accumulates the number of times of errors, and tabulates the number of times of errors simultaneously with the clearing of the counter 15. The number of times of errors is compared with a decided number of times, and the data length is set based on the result, and the result is informed to a data generation part 17. The generation part 17 switches the data length dynamically by cutting the data length when the quality of the line is worse based on the signal from the setting part 18, and extending the data length when satisfactory quality is obtained. Thereby, it is possible to improve the efficiency of the data transfer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23115987A JPS6474842A (en) | 1987-09-17 | 1987-09-17 | Method and device for switching transmission data length in data transfer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23115987A JPS6474842A (en) | 1987-09-17 | 1987-09-17 | Method and device for switching transmission data length in data transfer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6474842A true JPS6474842A (en) | 1989-03-20 |
Family
ID=16919227
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23115987A Pending JPS6474842A (en) | 1987-09-17 | 1987-09-17 | Method and device for switching transmission data length in data transfer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6474842A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002064473A (en) * | 2000-07-18 | 2002-02-28 | Eastman Kodak Co | Packet data transmission system for sending wireless image data |
US9160483B2 (en) | 2011-08-25 | 2015-10-13 | Mitsubishi Electric Corporation | Signal transmission device with data length changer |
-
1987
- 1987-09-17 JP JP23115987A patent/JPS6474842A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002064473A (en) * | 2000-07-18 | 2002-02-28 | Eastman Kodak Co | Packet data transmission system for sending wireless image data |
US9160483B2 (en) | 2011-08-25 | 2015-10-13 | Mitsubishi Electric Corporation | Signal transmission device with data length changer |
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