G - Physics – 08 – C
Patent
G - Physics
08
C
73/168, 375/5
G08C 15/06 (2006.01) B05C 9/14 (2006.01) G01K 1/02 (2006.01) G01K 7/00 (2006.01)
Patent
CA 1213683
SCANNING TEMPERATURE DISPLAY SYSTEM Abstract of the Disclosure A scanning display system for providing a sequential display of a number of temperature signal inputs. The inputs are coupled through a multiplexer to sequentially produce single output signals, which are in turn scaled and displayed in a digital display. Some of the inputs to the multiplexer may not be used, leaving certain unused inputs which are sequentially coupled to the output of the multiplexer. The multiplexer normally advances through the inputs at a particu- lar clocking rate, as determined by a first clocking signal, at a selected frequency. The scanning display system recognizes the coupling of an unused input to the multiplexer output and advances the multiplexer using a second, higher frequency, clocking signal until the next used input is reached. In this way, only temperature inputs for used channels are displayed in the digital temperature display. A manually operated switch is also provided to advance the multiplexer through the sequence of input temperature signals.
448424
Corporation Nordson
Macrae & Co.
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