Clock detect indicator
US6707320B2 · kind B2 · utility
9Cited by
12References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2001 |
| Grant date | Mar 16, 2004 |
| Priority date | — |
| Expiry date | Nov 30, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/04
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A clock detect indicator capable of determining the presence of high and low frequency clock signals is provided. The clock detect indicator, which operates independent of a reference clock, has detection circuitry that determines whether a particular clock signal has alternating high-to-low and low-to-high transitions. Based on the determination, the clock detect indicator outputs a transition on a clock detect indication signal. Further, a method for detecting a clock signal in an integrated circuit is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.