JPS5631237A - Information transmission system - Google Patents
Information transmission systemInfo
- Publication number
- JPS5631237A JPS5631237A JP10743079A JP10743079A JPS5631237A JP S5631237 A JPS5631237 A JP S5631237A JP 10743079 A JP10743079 A JP 10743079A JP 10743079 A JP10743079 A JP 10743079A JP S5631237 A JPS5631237 A JP S5631237A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- transmitted
- transmission
- picture information
- time
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/1874—Buffer management
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/1887—Scheduling and prioritising arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
- Communication Control (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
PURPOSE:To perform retransmission without a complicated picture information memory circuit for the retransmission signal, by transmitting a dummy signal for a fixed time before transmission of the picture information signal after the training signal is transmitted from the transmitter side. CONSTITUTION:After transmission of training signal T, dummy signal D independent of picture information signal P is transmitted for fixed time t0 which is longer than time (t) obtained by adding the transfer time of signal T from the transmitter to the receiver and the transmission time of retransmission request signal R from the receiver to the transmitter, and after that, blocks of signal P are transmitted. Thus, since several blocks of signal P are not transmitted, it is unnecessary to retransmit signal P and it is sufficient if signals T and D are transmitted again even if a trouble occurs. Signal R does not come in transmission of signal D until signal P is transmitted following signal D.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10743079A JPS5631237A (en) | 1979-08-22 | 1979-08-22 | Information transmission system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10743079A JPS5631237A (en) | 1979-08-22 | 1979-08-22 | Information transmission system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5631237A true JPS5631237A (en) | 1981-03-30 |
Family
ID=14458936
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10743079A Pending JPS5631237A (en) | 1979-08-22 | 1979-08-22 | Information transmission system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5631237A (en) |
-
1979
- 1979-08-22 JP JP10743079A patent/JPS5631237A/en active Pending
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