Frequency modulation (FM) clear channel scanning system and method of using same
US8478218B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 11, 2008 |
| Grant date | Jul 2, 2013 |
| Priority date | — |
| Expiry date | Aug 17, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03J1/0091
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A scan system receives signals within a band from an antenna and divides the band into sub-bands and scans the channels of each sub-band to determine a candidate channel based on the lowest figure of merit (FOM) and includes an on-channel selection block responsive to a received digital signal and operative to select only the on-channel frequencies and to substantially disregard the out-of-channel frequencies from the digital signal. The scan system generates a FOM on-channel signal representing a measurement of the signal quality of the on-channel signal and includes an out-of-channel selection block responsive to the digital signal and operative to select only the out-of-channel frequencies and to substantially disregard the on-channel frequencies from the digital signal and operative to generate a FOM out-of-channel signal representing a measurement of the signal quality of the out-of-channel signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.