Oscillation circuit and electronic equipment
US7230501B2 · kind B2 · utility
3Cited by
5References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 31, 2005 |
| Grant date | Jun 12, 2007 |
| Priority date | — |
| Expiry date | Jul 16, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B5/326
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An oscillation circuit comprises a SAW resonator having a pair of reflectors disposed on a piezoelectric substrate and a pair of IDTs which are set up in parallel between the pair of reflectors and which are constituted by teeth-of-a-comb electrodes; an inverter to which the pair of IDTs are connected in parallel; and a change-over unit which is provided between each of a pair of the teeth-of-a-comb electrodes constituting either of the IDTs of the pair of IDTs and the inverter and which changes over and connects an input side and an output side of the inverter connected to each of the pair of the teeth-of-a-comb electrodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.