Oscillator circuit
US8669820B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2012 |
| Grant date | Mar 11, 2014 |
| Priority date | — |
| Expiry date | Apr 19, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K4/501
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An oscillator circuit includes a clock oscillator which outputs a main clock signal having an oscillating frequency switched between a high frequency and a low frequency in response to a frequency selection signal, and a frequency divider circuit which outputs a sub-clock signal having a divided frequency equivalent to a frequency division ratio of the oscillating frequency of the main clock signal, the frequency division ratio being switched in response to the frequency selection signal. The divided frequency of the sub-clock signal is predetermined for each of the high frequency and the low frequency to which the oscillating frequency is switched in response to the frequency selection signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.