Comparator
US5289414A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 25, 1992 |
| Grant date | Feb 22, 1994 |
| Priority date | — |
| Expiry date | Sep 25, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0895
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A comparator for comparing the voltage of an address pair signals in complement with the voltages of bit pair signals in complement includes a pair of transistors for receiving the bit pair signals and a pair of MOSFETs for receiving the address pair signals. One transistor and one MOSFET are connected in series to define a first current path and other transistor and other MOSFET are connected in series to define a second current path. When the address signal and the bit signal are the same, both the first and second current paths close, but when they are different; either the first or the second current path opens to permit a current to pass therethrough. By detecting the current in the path, the coincidence and non-coincidence between the address pair signals and bit pair signals are detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.