http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H07333680-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_03d0f52bb4069f8a19d70dcfb697c67a |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03B9-08 |
| filingDate | 1994-06-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_84c8d5a52b143693fef9f7bd3dae10b9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8e9062cb95e2e7b6178e8ddc9eadcc4f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cbffff859293cfd6ae9de5d88ea056c8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_51354cd9d0928660c7fa04618f7ae3ba http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_071ff1b18445d5d3bf85b4f177ca1a1e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9d97c3640a14985f37a7df89142bfd84 |
| publicationDate | 1995-12-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H07333680-A |
| titleOfInvention | Drive control device for shutter blades |
| abstract | (57) [Summary] [Purpose] To keep the moving speed stable when the shutter blades move in the opening direction. [Structure] On a shutter blade 24, a plurality of slits 28 are arranged at a constant pitch along the moving direction thereof. A timing pulse having a pulse interval corresponding to the moving speed of the shutter blade 24 is obtained from the photo interrupter 30. The pulse interval comparison circuit 38 measures the pulse interval of the timing pulse and compares it with the reference pulse interval stored in the reference pulse interval storage memory 42. The speed correction signal ΔR N corresponding to the difference is corrected by the drive current correction circuit 39. Converted to V N. The drive correction signal ΔV N is added to the drive signal V 0 output from the drive current setting circuit 40 and input to the motor driver 36. The motor driver 36 supplies the drive current corresponding to “V 0 + ΔV N ” to the motor 35. The drive correction signal ΔV N corresponding to the moving speed of the shutter blades 24 is fed back to the motor driver 36, and the moving speed of the shutter blades 24 is kept stable. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2009229862-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2010152085-A |
| priorityDate | 1994-06-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 28.