Dual layer signal processing in a layered modulation digital signal system
US7173981B1 · kind B1 · utility
32Cited by
130References
36Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 5, 2002 |
| Grant date | Feb 6, 2007 |
| Priority date | — |
| Expiry date | Jan 7, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/426
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for receiving layered modulation for digital signals are presented. An exemplary apparatus comprises a tuner for receiving a layered signal and producing a layered in-phase signal and a layered quadrature signal therefrom, an analog-to-digital converter for digitizing the layered in-phase signal and the layered quadrature signal and a processor for decoding the layered in-phase signal and the layered quadrature signal to produce one or more discrete layer signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.