Low-power crystal oscillator
US5155453A · kind A · utility
10Cited by
1References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 23, 1991 |
| Grant date | Oct 13, 1992 |
| Priority date | — |
| Expiry date | May 23, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L3/00
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An improved crystal oscillator and output circuit is disclosed. The oscillator has a normal operating mode and a low-power mode. In the low-power mode, a reduced current which is sufficient to maintain oscillation is supplied to the oscillator and the output circuit is disabled. The oscillator can subsequently be returned to normal mode and the output circuit enabled. Since the oscillator is never shut completely off, the time required to resume normal mode oscillations is reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.