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Primary Examiner: Miller, Jr., Stanley D.
Assistant Examiner:
Attorney: Christoffersen; H., Cohen; S., Limberg; A. L.

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Title: Capacitance memories operated with intermittently-energized integrated circuits

Abstract: Capacitance memories operated with intermittently-energized monolithic integrated circuits tend to lose information during periods between the spaced intervals the integrated-circuits are energized. This tendency, attributable to sneak conduction paths in the un-energized integrated circuit, is forestalled by inserting the channel of a field-effect transistor in series with the memory capacitance, which channel is rendered conductive when only the energizing potential is supplied to the integrated circuit.

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Inventors: Schade, Jr., Otto Heinrich (North Caldwell, NJ, US)

Application Number: 702400
Filing Date: 1976-07-06
Publication_date: 1977-07-05
Assignee: RCA Corporation (New York, NY)
Primary Class(es): 327/91 257/296, 327/190
Other Classes:
US Patent Ref:

3521141	Jul, 1970	Walton	307/251.
3524996	Aug, 1970	Raper et al.	307/251.
3551698	Dec, 1970	Smith	307/238.

Other Refs: Other References: "Analog Storage Circuit" by Beck, IBM Tech. Disclo. Bull., vol. 9, No. 7, Dec. 1966, pp. 916-917.
"M.o.s.t,s Store Analogue Voltages for Long Periods" by Dunlop in Electronic Engineering, Nov. 1971, pp. 34-35.
"Analog Sample/Hold Circuit for Physiological Signal Monitoring" by Johnson, IEEE Transactions on Biomedical Engineering, Sept. 1975, pp. 420-422.