Analog content addressable memory (CAM) employing analog...

Details Analog content addressable memory (CAM) employing analog... Analog content addressable memory (CAM) employing analog...

2006-01-10

2006-01-10

Le, Thong Q. (Department: 2827)

Static information storage and retrieval

Analog storage systems

C365S189070, C365S236000

Reexamination Certificate

active

06985372

ABSTRACT:
The invention discloses an analog content addressable memory (CAM) that employs analog storage cells with programmable analog transfer function capability. The analog CAM scans and/or compares its memory array contents to determine if an analog voltage applied at Vin matches a value stored in the memory array. If the value applied to Vin matches a value stored in the analog CAM, the analog data stored at a different and corresponding location in an analog storage cell is coupled to the Vout output. An analog content addressable memory, comprising a first array A of analog memory cells for storing and generating a VA voltage; and a comparator having a first input for receiving a Vin voltage, a second input for receiving the VA voltage from the first array A of analog memory cells. Analog-to-Digital and Digital-to-Analog Converters comprising an array of analog memory cells.

REFERENCES:
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patent: 6038166 (2000-03-01), Wong
patent: 6208542 (2001-03-01), Wang et al.
patent: 6324087 (2001-11-01), Pereira
patent: 6353554 (2002-03-01), Banks
Blyth, Trevor, A non-volatile Analog Storage Device Using EEPROM Technology 1991 IEEE International Solid State Circuits Conference, Feb. 14, 1991.

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