http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2484895-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_294881271413951a95f284b588a68e66 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04L5-0023 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04L27-2604 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04L27-3472 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04L27-3488 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04L5-0048 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04L27-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04N5-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04L27-26 |
| filingDate | 2010-10-18^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d584d9f7108cb6308d5249c20dc3919b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2a07b28c674ef8a5ce53ed0b0cf4f274 |
| publicationDate | 2012-05-02^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-2484895-A |
| titleOfInvention | An OFDM transmitter selects between two modulation schemes for the transmission of national broadcast channel only or national broadcast and local service cha |
| abstract | An OFDM transmitter preferably for use with a Next Generation Handheld (NGH) standard comprises: a first input from a first data pipe 82 according to a national broadcast channel; a second input from a local service insertion data pipe 84 according to a local service channel; and a modulator which modulates the sub-carrier signals of OFDM symbols with either the data symbols from the first data pipe y0y1y2y3, using a first lower order modulation scheme 94 (e.g. M-QAM), or the data symbols form the first data pipe and the local service insertion data pipe h0h1, using a second higher order modulation scheme 96 (e.g. at least 2M-QAM). The OFDM symbols include a plurality of sub-carrier symbols including symbols to be modulated with pilot sub-carriers. Local pilots may be inserted into the local service data by puncturing the local service data symbols by replacing the local service data symbols with local pilot symbols. |
| priorityDate | 2010-10-18^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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