Multiple reduced-bandwidth processing paths to achieve a full and continuous output band for multiple channel CATV upconversion
US8839331B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2011 |
| Grant date | Sep 16, 2014 |
| Priority date | — |
| Expiry date | Jul 13, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/6118
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of channel processing is provided wherein multiple reduced-bandwidth “processing blocks” may be combined at RF to allow for the continuous and flexible placement of multiple-channels across the full or partial CATV output band. Each reduced-bandwidth processing block is associated with a fixed-frequency upconversion. In order to allow for continuous agile channel placement, the processing blocks overlap one another in frequency at RF. In the case where it is not necessary that the full CATV band be available to the combined output, the number of required processing blocks and upconversion paths is reduced and individual processing blocks and upconversion paths may be used to cover multiple non-contiguous frequency bands.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.