| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e757fd4fedc4fe825bb81b1b466a0947 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G10L25-90
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G10L19-08 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G10L19-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01H3-04 |
| filingDate |
1987-03-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7c88a38e6de08625fe422f84957c700a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_61eb4e8de77034a1efcfe78b11bd83ff
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b45a325144282b0be456c7292c7f3d3d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_68315144bead03ac05e89b16275cf74c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f6b30be6522862cc0259753a39303939
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dc19fbc7794dc6309fbc21df7e963c65 |
| publicationDate |
1988-09-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0280827-A1 |
| titleOfInvention |
Pitch detection process and speech coder using said process |
| abstract |
A pitch data detecting means to be used to adjust long term predictive means in a pulse excitation speech coder. A residual signal r(n) is first derived from the speech signal s(n) through short term filtering then r(n) is processed to provide a prediction error signal e(n) to be pulse excitation encoded. The generation of e(n) involves predicting a residual through Long Term Prediction operations including measuring a pitch related factor M, through a dual steps process with first step providing a coarse M value through peak clipping and sign transition detection, and then second step for adjusting said M to a finer value through autocorrelations operating about the roughly spaced peaks. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0758123-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0415163-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0415163-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0681728-A4
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6243672-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0681728-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1061502-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5727123-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/SG-87819-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0475520-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/AU-725711-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5784532-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0475520-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5528629-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9522819-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/AU-697822-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5926786-A |
| priorityDate |
1987-03-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |