1
Ken Miyazaki, Kazutoshi Takahashi, Mamoru Omino: Apparatus for monitoring changes of multiple inputs. Asahi Kasei Kogyo Kabushiki Kaisha, Sughrue Rothwell Mion Zinn & Macpeak, January 4, 1977: US04001785 (40 worldwide citation)

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 ...


2
Apparatus for monitoring changes of multiple inputs. Asahi Chemical, September 28, 1977: GB1487266-A

1487266 Selective signalling ASAHI KASEI KOGYO KK 12 Feb 1975 [15 Feb 1974] 5950/75 Heading G4H Apparatus for monitoring a change in a plurality of inputs scans the inputs, compares the scanned outputs with the scanned outputs of the same inputs in a previous scan from an update memory and, in the e ...