Oscillation circuit
US7560999B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 23, 2007 |
| Grant date | Jul 14, 2009 |
| Priority date | — |
| Expiry date | Jul 4, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B5/364
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An oscillation circuit, including: a complementary metal oxide semiconductor (CMOS) inverter coupled between a first potential and a second potential; a first element unit whose one terminal is coupled to an input terminal of the CMOS inverter; a second element unit whose one terminal is coupled to the input terminal of the CMOS inverter and whose other terminal is coupled to an output terminal of the CMOS inverter; a third element unit whose one terminal is coupled to the output terminal of the CMOS inverter; and a fourth element unit whose one terminal is coupled to the other terminal of the first element unit and to the other terminal of the third element unit, and whose other terminal is coupled to either the first potential or the second potential; in that: the first, second, third, and fourth element units are any of a quartz crystal resonator, a resistor, an inductor, and a capacitor; the oscillation circuit oscillating at a frequency determined by the first, second, and third element units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.