Abstract
This paper presents a 4-vaIued contentaddressable memory (CAM) for fully parallel template-matching operations in real-time cellular logic image processing with fixed templates. A universal literal is essential to perform a multiplevalued template-matching operation. It is decomposed of a pair of a threshold operation in a CAM cell and a logic-value conversion shared by CAM cells in the same column of a CAM cellular array, which makes a CAM cell function simple. Since a threshold operation together with a 4-valued storage element can be designed by using a single floating-gate MOS transistor, a highdensity 4-valued universal-literal CAM with a single-transistor cell can be implemented by using a multi-layer interconnection technology. It is demonstrated that the performance of the proposed CAM is much superior to that of conventional CAMs under the same function.
Original language | English |
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Pages (from-to) | 948-954 |
Number of pages | 7 |
Journal | IEICE Transactions on Electronics |
Volume | E80-C |
Issue number | 7 |
Publication status | Published - 1997 Jan 1 |
Externally published | Yes |
Keywords
- Floating-gate mos transistor
- Fully parallel template matching
- Logic value conversion (LVC)
- Single-transistor cell
- Threshold operation
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering