04001785 is referenced by 40 patents and cites 10 patents.

A scanning circuit successively scans a multiplicity of input points, producing respective binary signals representing corresponding status in a chemical or electrical industry. The scanned output is stored in an update memory at an address which corresponds to each of the input points. Each of the scanned output is also compared with a signal read out from this memory which stores the result of the previous scanning, and in the absence of coincidence therebetween, the address corresponding to that input point and its associated status are stored in a temporary store. A second or main memory is accessed by an address signal which comprises the address of that input point and its associated status which are read out from the temporary store, so as to supply information representative of that input point, for example, the name of a particular instrument and its associated status, to a recorder for the purpose of recording.

Title
Apparatus for monitoring changes of multiple inputs
Application Number
5/550076
Publication Number
4001785
Application Date
February 14, 1975
Publication Date
January 4, 1977
Inventor
Mamoru Omino
Musashino
JA
Kazutoshi Takahashi
Yokohama
JA
Ken Miyazaki
Yokohama
JA
Agent
Sughrue Rothwell Mion Zinn & Macpeak
Assignee
Asahi Kasei Kogyo Kabushiki Kaisha
JA
IPC
G06F 11/00
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