| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_75b86e50a7529f6158517db14a0b81df |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01S15-8925
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B06B2201-76
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B06B2201-51
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B8-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N29-2406 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B06B1-0292
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B8-488
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01S7-5208
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01S15-895
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01S7-52026
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B8-4483 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61B8-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N29-24 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61B8-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61B8-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01S15-89
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B06B1-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01S7-52 |
| filingDate |
2016-08-02^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2021-09-14^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_72e116a39593d96beb27961eea406f42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f8f785d80b2d797a4a1fd1d3069ad696 |
| publicationDate |
2021-09-14^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-11117165-B2 |
| titleOfInvention |
Capacitive micromachined ultrasonic transducers with overcurrent protection |
| abstract |
An array of CMUT cells has a DC bias voltage coupled to the top electrodes of the cells to bias the electrode to a desired collapsed or partially collapsed state. In the event of a short-circuit failure of a CMUT cell a protection circuit for the cell senses an over-current condition and responds by opening the DC current path through the failed cell. The protection circuit further disables the transmit and receive circuitry of the cell. In another implementation a sense circuit senses an over-current condition of the n DC bias supply and responds by disabling all of the CMUT cells of the array, then sequentially re-enabling them, except that an attempt to re-enable a failed cell results in that cell remaining in a disabled state. |
| priorityDate |
2015-08-11^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |