Static information storage and retrieval – Floating gate – Multiple values
Patent
1995-10-10
1998-09-29
Nelms, David C.
Static information storage and retrieval
Floating gate
Multiple values
36518511, 36518523, 36518524, G11C 1134
Patent
active
058154353
ABSTRACT:
A gate-follower storage cell and a diode-connected storage cell for use in integrated circuit analog signal recording and playback is disclosed. The gate-follower storage cell is used in negative feedback mode to provide a one to one variation between the cell threshold and the gate voltage in the read mode. The diode-connected storage cell is connected in a diode configuration to provide a one-to-one variation between the cell threshold and the gate voltage in the read mode. The gate-follower or diode-connected storage cells may be implemented in a memory array for storing analog signals. In a preferred embodiment, the memory array provides wordlines which are accessible through column drivers. Each row or wordline is divided into a plurality of sector wordlines by inserting select transistors in the array. Each sector is driven by a column driver. In the read and programming modes, the sector wordlines are isolated from each other and are provided to the column drivers through additional select transistors. Only one memory cell from each sector wordline is read or programmed at a given time. In the erase mode, all sectors of a wordline are connected together through the select transistors, so that the erase operation may be accomplished for a complete row at a given time.
REFERENCES:
patent: 4989179 (1991-01-01), Simko
patent: 5126967 (1992-06-01), Simko
patent: 5164915 (1992-11-01), Blyth
patent: 5220531 (1993-06-01), Blyth et al.
Information Storage Devices, Inc.
Nelms David C.
Phan Trong
LandOfFree
Storage cell for analog recording and playback does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Storage cell for analog recording and playback, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Storage cell for analog recording and playback will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-692607