05189409 is referenced by 11 patents and cites 9 patents.

A terminal equipment control system which controls the operation state of multiple terminals having data communication with master equipment. A control signal of a specified duration is output from the master equipment to each of a plurality of multiple terminals, and the duration of the each control signal is measured by a measuring device provided in each terminal such that the current operation state of each terminal is changed when the measurement by the measuring device becomes equal to or larger than the specified duration.

Title
System for controlling terminal equipment
Application Number
186084
Publication Number
5189409
Application Date
September 20, 1991
Publication Date
February 23, 1993
Inventor
Yasuo Okuno
Nara
JP
Assignee
Sharp Kabushiki Kaisha
JP
IPC
G05B 23/00
View Original Source