Title: Analog and digital data recorder

Abstract: A data recorder for recording and simultaneously printing both analog and gital data on the same strip chart. The simultaneous recording of both the analog and digital data provides a permanent time base correlation of the event(s) represented thereby which is extremely useful for instant analysis of later study. In a preferred embodiment, two channels of analog information are recorded by pen styli and are representative of the output of a pair of condensation nuclei counters for monitoring atmospheric pollution. The digital data is recorded simultaneously adjacent the analog information in its own channel and represents position coordinates corresponding to the location of the airborne counters at any given point in time and may, for example, comprise the digital output of a LORAN-C navigator. The simultaneous output allows immediate correlation between the maxima and minima of the analog traces and position.

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Inventors: Germanowski, Frank (Pittsfield, MA, US)
Kazura, John A. (Pittsfield, MA, US)

Application Number: 647386
Filing Date: 1976-01-08
Publication_date: 1977-08-16
Assignee: The United States of America as represented by the Secretary of the Army (Washington, DC)
Primary Class(es): 346/61 346/141
Other Classes:
US Patent Ref:

2544919	Mar, 1951	Dueringer	346/66.
2587079	Feb, 1952	Woods et al.	346/66.
2611802	Sep, 1952	Jensen	346/61.
3388404	Jun, 1968	Bush	346/61.
3631506	Dec, 1971	Nielsen	346/98.
3754279	Aug, 1973	Valenti et al.	346/61.
3757350	Sep, 1973	Fliegner et al.	346/50.

Other Refs:
Primary Examiner: Hartary, Joseph W.
Assistant Examiner:
Attorney: Edelberg; Nathan, Gibson; Robert P., Elbaum; Saul