http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2010180808-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_24f54aefd7a75822ce9d6a7759e20068 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F02D45-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01H17-00 |
| filingDate | 2009-02-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8b3ef72c325845db06f74db11bf37b4e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_822b22da8ff93ea93e4cdbddd95a00b2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0c667522f942cb9beb0e12766b9cd076 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_55fda1313cab537a14d90f2cdea127b7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a088390029361c479b0217521d7a190c |
| publicationDate | 2010-08-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2010180808-A |
| titleOfInvention | Frequency component analyzer |
| abstract | PROBLEM TO BE SOLVED: To perform a frequency component intensity calculation more appropriately when performing frequency component analysis of detection parameters in synchronization with rotation of an internal combustion engine, and to reduce a required calculation amount while ensuring calculation accuracy A component analyzer is provided. A sine wave component intensity DMFTS and a cosine wave component intensity DMFTC are calculated using an A / D converted knock sensor output VKNK (S2), and a CRK interrupt occurs every time a crankshaft rotates by a predetermined angle. Then, the frequency component intensity value STFT is calculated using the sine wave component intensity DMFTS and the cosine wave component intensity DMFTC (S3 to S6). In calculating the sine wave component intensity DMFTS and the cosine wave component intensity DMFTC, a ternary sine wave signal is applied to reduce the calculation load. [Selection] FIG. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2021055600-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112576397-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-7133527-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115442883-A |
| priorityDate | 2009-02-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 23.