Radio transmission system
US6754474B1 · kind B1 · utility
1Cited by
18References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2000 |
| Grant date | Jun 22, 2004 |
| Priority date | — |
| Expiry date | Jun 29, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2017
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
In a transmission system, a modulator and a fractional frequency divider are introduced into the control loop of a voltage-controlled oscillator. It is shown that the benefit of this is a reduction in noise associated with the reduction of noise due to using a divider with a lower division coefficient. In one embodiment, the fractional divider is obtained by selecting different dividers in turn in accordance with temporal proportions corresponding to a required division fraction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.