Precise digital generator producing clock signals
US6731178B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2001 |
| Grant date | May 4, 2004 |
| Priority date | — |
| Expiry date | Apr 3, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/08
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A generator includes an oscillator for producing a clock signal from an N-bit control number. The oscillator includes a first group of cells, with each cell including at least one series connected inverter. A first selection circuit selects a variable number of the cells as a function of the most significant bits of the control number. The oscillator also includes a second group of cells, with each cell including at least one series connected inverter. A second selection circuit selects one of the cells as a function of the least significant bits of the control number. The selected cells of the first and second groups of cells are series connected to form a chain of inverters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.