Static information storage and retrieval – Analog storage systems
Patent
1987-06-18
1989-02-28
Popek, Joseph A.
Static information storage and retrieval
Analog storage systems
365222, G11C 2700
Patent
active
048092231
ABSTRACT:
A state analog memory device for storing approximations of analog signals for prolonged periods of time converts the analog signal in an n-ary digitizer to the one of a plurality of a discrete levels which is the next greater in magnitude than the applied signal. This digitized signal is then serially stored in an analog storage element comprising connected master and slave sample and hold circuits by a two stage control signal. Periodically, at intervals shorter in duration than the time in which the stored signals would droop to the next lower n level, the stored signal is refreshed by feeding the signal stored in the slave sample and hold circuit back to the digitizer which boosts it back up to the one level which is reentered in the master/slave sample and hold circuits. A state analog dynamic RAM utilizes an array of the analog store elements and a plurality of n-ary digitizers for simultaneously refreshing rows of the storage elements at a time. In addition a shift register utilizing a number of series connected state analog memory devices is disclosed.
REFERENCES:
patent: 3950733 (1976-04-01), Cooper et al.
patent: 4573142 (1986-02-01), Azegami
patent: 4593370 (1986-06-01), Balkanli
Digital Integrated Electronics, Herbert Taub and Donald Schilling, McGraw-Hill, Inc. Copyright 1977, pp. 420-428.
Electronics for the Modern Scientist, Paul B. Brown, Gunter N. Franz, Howard Moraff, Elsevier Science Publishing Co., Inc., Copyright 1982, pp. 421-425.
Popek Joseph A.
West Virginia University
Westerhoff Richard V.
LandOfFree
Apparatus and method for long term storage of analog signals does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for long term storage of analog signals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for long term storage of analog signals will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1373993