Data logging apparatus

Details Data logging apparatus Data logging apparatus

1989-01-17

1991-04-23

Heyman, John S.

Electrical pulse counters, pulse dividers, or shift registers: c

Applications

Measuring or testing

364569, 368118, G04F 1000

Patent

active

050105604

ABSTRACT:
In data logging applications an apparatus for real-time stamping data includes a reference time base, a short stopwatch circuit operative for generating a short-time stamp, and a long stopwatch circuit operative for generating at intervals a long-time stamp. Data to be logged with the short-time stamp is combined therewith and stored. A controller circuit controls the storage of the data and of the long-time and the short-time stamps. The controller circuit stores the long-time stamp at predetermined intervals.

REFERENCES:
patent: 4166360 (1979-09-01), Yamaguchi
patent: 4168531 (1979-09-01), Eichelberger et al.
patent: 4195220 (1980-03-01), Bristol et al.
patent: 4598375 (1986-07-01), Hiramatsu et al.
patent: 4677580 (1987-06-01), Suluski
patent: 4685061 (1987-08-01), Whitaker
patent: 4712072 (1987-12-01), Kawanabe

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