| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b94f11dfc5cf2dcc6f5bee507180b6e3 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04H60-58
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G10L25-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04H60-29 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04H60-37
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04H60-31
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04M1-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G10L11-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04N7-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04H60-58
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04H60-43
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G10L19-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04H60-29
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04H1-00 |
| filingDate |
2000-06-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cac1eb4bc2e1db2808fe1c47bea7bab2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d9439e8756300c08c18b2c07cd11a525
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bc2a512c764acc1fa0876d8699768e20 |
| publicationDate |
2001-04-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-2809775-A1 |
| titleOfInvention |
Audio signature extraction and correlation |
| abstract |
A signature is extracted from the audio of a program received by a tunable receiver such that the signature characterizes the program. In order to extract the signature, blocks of the audio are converted to corresponding spectral moments. At least one of the spectral moments is then converted to the signature. Also, a test audio signal from a receiver is correlated to a reference audio signal by converting the test audio signal and the reference audio signal to corresponding test and reference spectra, determining test slopes corresponding to coefficients of the test spectrum and reference slopes corresponding to coefficients of the reference spectrum, and comparing the test slopes to the reference slopes in order to determine a match between the test audio signal and the reference audio signal. |
| priorityDate |
1999-10-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |