http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104123945-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G10L19-018 |
| filingDate | 2014-06-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2017-01-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2017-01-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104123945-B |
| titleOfInvention | Embedding method and extracting method for wav-format audio information |
| abstract | The invention discloses an embedding method for wav-format audio information. The embedding method comprises the following steps of: inputting a wav-format audio, a message needing to be embedded in the wav-format audio, of a user, a first algorithm parameter and a second algorithm parameter; carrying out formatting processing on the message needing to be embedded in the wav-format audio so as to generate a protocol paragraph containing a paragraph header identifier, a checksum, the message needing to be embedded in the wav-format audio, and a paragraph tail identifier; encrypting a random offset number, the first algorithm parameter and the second algorithm parameter to be 16-bit, 16-bit and 32-bit binary bit strings, setting the embedded bit number to 0, selecting the first sampling point of the (64+the random offset number) frame of the wav-format audio as a sampling point i0, taking every k continuous sampling points as a group, wherein k is a step length, and calculating the audio energies EA and EB of the group A={i0, i1, i2...ik-1} and the adjacent group B={ik, ik+1, i k+2...i2k-1} respectively by virtue of the following formulas; circulating the grouping calculation operation. |
| priorityDate | 2014-06-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID5282448 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID419563342 |
Total number of triples: 11.