| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_73ebc284a55d5daf0e209d6186c9e65c |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03B21-2066
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B7-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03B21-006 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B41J2-04581
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L21-67706
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B41J2-04541
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03B21-142
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H10N30-802
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H10N30-1071
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B7-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H02N2-103
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03B21-53
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H02N2-142
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H02N2-147 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L41-09
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L41-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H02N2-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H02N2-14 |
| filingDate |
2017-09-29^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_99d17427c11a398e91ce0ee980756b88 |
| publicationDate |
2019-04-25^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-2019068587-A |
| titleOfInvention |
Control device of piezoelectric drive device and control method of piezoelectric drive device |
| abstract |
A control device of a piezoelectric drive device capable of detecting a vibration state with high accuracy and a control method of the piezoelectric drive device are provided. A control device of a piezoelectric drive device includes a drive pulse signal generation unit that generates a binarized drive pulse signal, and a drive signal that generates a drive signal to be applied to a drive piezoelectric element from the drive pulse signal. A generation unit, a detection pulse signal generation unit that generates a detection pulse signal by binarizing a detection signal output from the detection piezoelectric element, rising and falling of the drive pulse signal, rising of the detection pulse signal, and And a phase difference acquisition unit that acquires a phase difference between the drive pulse signal and the detection pulse signal based on the falling edge. [Selected figure] Figure 7 |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112312107-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112312107-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-7318300-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110176873-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110176873-B |
| priorityDate |
2017-09-29^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |