Static information storage and retrieval – Floating gate – Multiple values
Patent
1996-11-26
1998-05-19
Nelms, David C.
Static information storage and retrieval
Floating gate
Multiple values
365 45, 36518907, 327 94, G11C 1134, G11C 2700
Patent
active
057544700
ABSTRACT:
The present invention is an apparatus for storing a voltage level within a storage element such as an EEPROM. The apparatus includes a track and hold circuit that receives the voltage level to be stored and an integrator that determines a target voltage to be applied to the storage element representative of a voltage level less than the received voltage level. The apparatus further includes a voltage ramp circuit that applies a voltage ramp signal to the storage element for increasing an amount of voltage held in the storage element while simultaneously reading a voltage level of the storage element to determine whether the voltage of the storage element matches the target voltage and a comparator that deactivates the voltage ramp signal when the voltage of the storage element matches the target voltage. The integrator also reads a resulting stored voltage of the storage element, determines a new target voltage, and controls the voltage ramp circuit and the comparator to apply the new target voltage to the storage element a predetermined number of times.
REFERENCES:
patent: 4054864 (1977-10-01), Audaire et al.
patent: 4094007 (1978-06-01), Minami
patent: 4890259 (1989-12-01), Simko
patent: 4989179 (1991-01-01), Simko
patent: 5126967 (1992-06-01), Simko
patent: 5164915 (1992-11-01), Blyth
patent: 5175706 (1992-12-01), Edme
patent: 5218571 (1993-06-01), Norris
patent: 5220531 (1993-06-01), Blyth et al.
patent: 5239500 (1993-08-01), Oguey
patent: 5241494 (1993-08-01), Blyth et al.
patent: 5243239 (1993-09-01), Khan et al.
patent: 5289401 (1994-02-01), Shima
patent: 5294819 (1994-03-01), Simko
patent: 5352934 (1994-10-01), Khan
patent: 5388064 (1995-02-01), Khan
patent: 5444656 (1995-08-01), Bauer et al.
patent: 5526301 (1996-06-01), Saxe
patent: 5553020 (1996-09-01), Keeneay et al.
patent: 5606522 (1997-02-01), Chai
Blyth Trevor
Engh Lawrence D.
Hoang Huan
Information Storage Devices, Inc.
Nelms David C.
LandOfFree
Apparatus for programming a voltage within a storage element 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 for programming a voltage within a storage element, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for programming a voltage within a storage element will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1859851