http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2667702-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c72d118f5664072de841f9c5c34b9d99 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01J9-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B5-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L27-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01J9-02 |
| filingDate | 1991-09-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_323a81ebc5d461ac478c528cf0d4cea9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fd6e56ffc47af4e8f55893d2d1c2145e |
| publicationDate | 1992-04-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | FR-2667702-A1 |
| titleOfInvention | PLANAR NETWORK OF LOAD TRANSFER DEVICES FOR DETECTING THE PHASE OF COHERENT LIGHT. |
| abstract | Respective processors (40) for pairs of photodetector elements (36, 37) are incorporated in an imaging device employed to detect the patterns of the fringes of a hologram in an optical interferometer. The processors remove the DC base from the in-phase and quadrature field images, then perform partial correlations of the resulting images on a pixel-by-pixel basis, and then add the partial correlations to complete the image correlation process and for providing an output signal from the imaging device or the basis for such a signal. This localized processing greatly reduces the number of samples that must be taken out of the imaging device during each complete frame when this device is used in an optical interferometer to detect the phase modulation of an optical signal, allowing for increased frame speeds. in accordance with another aspect of the invention. The correlation of the images is carried out according to a new algorithm which avoids having to multiply together the pixels located in correspondence in each pair of successive fields forming a following frame without overlapping. The multiplier-free processors are compact enough to be located inside the solid body imaging device near the pairs of photodetectors they respectively serve in the imaging device. Applications to interferometers. |
| priorityDate | 1990-10-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 21.