Resistive fuse circuits for image segmentation and smoothing
US5223754A · kind A · utility
7Cited by
2References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 14, 1990 |
| Grant date | Jun 29, 1993 |
| Priority date | — |
| Expiry date | Dec 14, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D84/83
Abstract
A simple transistor circuit which acts as a linear resistor for small applied voltages, but becomes extremely resistive for large applied voltages is disclosed. Two-dimensional resistive grids comprising these resistive fuses can be employed to smooth and segment discretized images in machine vision. Existing and previously proposed VLSI implementations of resistive fuses have required at least thirty-three transistors. The resistive fuse circuit of the present invention uses only four transistors in its simplest embodiment, thus making it possible to design much denser vision arrays.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.