http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2249930-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_991b61a0db169beabdd26d4f231ba902 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04N5-257 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04N9-11 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04N3-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04N5-257 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04N9-11 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04N3-20 |
| filingDate | 1990-11-16^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c2d01741b93d17e70a4666b4846ad359 |
| publicationDate | 1992-05-20^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-2249930-A |
| titleOfInvention | Dirt compensated flying spot scanner burn corrector |
| abstract | Two photomultipliers 14, 16 are arranged one on either side of a CRT 10 primary optical axis adjacent the imaging lens. High frequency components of the detected CRT brightness signal from the two photomultipliers are applied to the "gate" 32. When the signals are equal, one or other of the signals will be selected by the "gate". When the signals are unequal, the lower one will be rejected. Thus signals caused by faceplate dirt 20 are eliminated, since they appear displaced in time from the photomultipliers, due to the spacing of the dirt from the scanning beam and the spacing of the photomultipliers. Phosphor grain and blemish signals occur at the outputs of the photomultipliers simultaneously and are allowed through the "gate" to provide correction and attenuation of these unwanted signals. <IMAGE> |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2314988-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2314988-A |
| priorityDate | 1990-11-16^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID419559532 http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID24404 |
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