PLL circuit for radar
US10536154B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 8, 2019 |
| Grant date | Jan 14, 2020 |
| Priority date | — |
| Expiry date | Jul 8, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L2207/50
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a PLL circuit, a multi-band control oscillator includes multiple bands gradually increasing or decreasing a frequency in accordance with a control signal and being separated from each other, is capable of selectively switching one band among the multiple bands, and generates a signal of a frequency corresponding to the control signal in the band that is switched as a reference signal. A band setting unit sets the band of the multi-band control oscillator. The band setting unit sets the band for a present or subsequent time after a control command generator finishes outputting the control command to gradually increase or decrease from a previous start frequency to a previous stop frequency and before the control command generator starts outputting the control command to gradually increase or decrease from a present start frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.