Digital tuner
US7177622B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2004 |
| Grant date | Feb 13, 2007 |
| Priority date | — |
| Expiry date | Aug 4, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03J2200/10
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A digital tuner of the invention has: a filter section that selects a desired reception signal from inputted reception signals; a converter section that performs frequency conversion on the desired reception signal selected by the filter section; a level monitor section that monitors, with respect to a signal based on the signal outputted from the filter section, the signal levels thereof at two or more frequencies within the reception band; and a waveform shaper section that varies the waveform inclination of signals based on the inputted reception signals within the reception band according to the results of monitoring by the level monitor section. This configuration helps reduce the waveform inclination of the output signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.