Apparatus for transmitting broadcast signals, apparatus for receiving broadcast signals, method for transmitting broadcast signals and method for receiving broadcast signals
US9854412B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2016 |
| Grant date | Dec 26, 2017 |
| Priority date | — |
| Expiry date | Mar 8, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/18
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and an apparatus for transmitting broadcast signals thereof are disclosed. The apparatus for transmitting broadcast signals, the apparatus comprises an encoder to encode service data, a mapper to map the encoded service data into constellations, a MIMO (Multi Input Multi Output) processor to process a pair of symbols of the mapped service data based on a rotation matrix with a rotation angle, a frame builder to build signal frames including the MIMO processed service data, a modulator to modulate data in the signal frames by an OFDM (Orthogonal Frequency Division Multiplex) scheme and a transmitter to transmit the broadcast signals having the modulated data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.