Digital logic devices with extremely skewed trip points and reset circuitry for rapidly propagating signal edges
US6628139B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 3, 2001 |
| Grant date | Sep 30, 2003 |
| Priority date | — |
| Expiry date | Aug 3, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/01721
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The invention includes digital logic devices with extremely skewed trip points and reset circuitry for rapidly propagating signal edges. Embodiments of skewed logic devices in accordance with the present invention included inverters, buffers, NOR gates, NAND gates for rapidly propagating a selected “fast” edge of an input signal. Additional embodiments include pulse stretchers, memory devices, substrates, computer systems and methods incorporating the skewed logic devices of the present invention. Each embodiment of a skewed logic device of the present invention is configured to propagate a either a fast rising edge or fast falling edge of an output signal, i.e., the “fast” edge, at rates comparable to those of domino logic. An advantage of the skewed logic devices of the present invention over conventional CMOS logic devices is rapid edge propagation. Additionally, virtually all of the input gate loading is devoted to the fast edge being propagated. Additionally, the reset networks, as disclosed herein, are buffered by at least two gates, thus reducing loading seen by the input or the output of the skewed logic device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.