04149142 is referenced by 23 patents and cites 7 patents.

A signal transmission system embodying this invention which can control errors comprises a selective automatic repeat request (ARQ) system for controlling errors occurring in transmission of data on telephone data communication channels. With this selective ARQ system, an error-controlling signal conducted through a backward channel does not contain a check bit for detection or correction of errors, thereby preventing a time loss which might occur if a error-control signal was repeatedly issued between the transmission and receiving sides. The subject signal-transmitting apparatus is adapted to be used in a static image transmission having a large amount of data and has such a circuit arrangement as attains the efficient transmission of data and the display of an error-free image of good picture quality.

Title
Signal transmission system with an error control technique
Application Number
5/826053
Publication Number
4149142
Application Date
August 19, 1977
Publication Date
April 10, 1979
Inventor
Keisuke Ogi
Tokyo
JP
Keiji Takeuchi
Yokohama
JP
Satoshi Kageyama
Yokohama
JP
Agent
Oblon Fisher Spivak McClelland & Maier
Assignee
Tokyo Shibaura Electric
JP
IPC
G08C 25/02
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