Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Memory system which enables storage and retrieval of more than two states in a memory cell










Image Number 7 for United States Patent #5808932.

A memory circuit which enables storage of more than two logic states in a memory cell. Since the additional logic states may be used to represent additional information bits, this memory circuit increases the number of bits that may be stored per memory cell, thereby increasing the storage density and reducing the cost per bit. The disclosed memory circuit comprises an analog-to-digital converter coupled to detect a current through a transistor in a memory cell. The current is determined by a charge stored on the transistor's gate. By enabling the current to be detected in discrete increments, it becomes possible to represent more than one bit of information with the charge stored in the memory cell. Usage of additional increments necessitates more precise storage and detection circuitry. In one embodiment, the storage circuitry uses feedback to obtain a greater logic state retrieval accuracy.








 
 
  Recently Added Patents
Method for generating codewords
Profile and template based dynamic portable user workflow
Contact sensor, driver device, and care bed
Optical analysis device, optical analysis method and computer program for optical analysis
Avirulent oncolytic herpes simplex virus strains engineered to counter the innate host response
Frothable aqueous composition for use in a carpet backing composition
Method and apparatus for providing contention-based resource zones in a wireless network
  Randomly Featured Patents
Propylene resin composition including isotactic polypropylene and polyolefin resin
Control system and method for controlling actual fuel delivered by individual fuel injectors
3-(Tert-alkylthio)-1,3-thiazolidin-2,4-dione used to inhibit premature vulcanization of diene rubbers
Reconfigurable multichip module stack interface
Frequency tunable resonant scanner with auxiliary arms
Vascular dilating catheter
Forming improved metal nitrides
Modulators of retinoid-related orphan receptor gamma
Method and apparatus for a frequency domain echo suppression filter
Photographic roll film