PATTERN RECOGNITION SYSTEM
A star pattern recognition system ( 1 ) comprises an optical filter arrangement ( 10 ) in the form of an array ( 12 ) of independently tiltable mirrors (M 1 ), (M 2 ). Light from a distant starfield ( 2 ) is incident upon the mirror array ( 12 ). Each mirror (M 1 ), (M 2 ) reflects a respective imag...
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| creator | KOURIS, ARISTODIMOS CHATWIN, CHRISTOPHER REGINALD |
| description | A star pattern recognition system ( 1 ) comprises an optical filter arrangement ( 10 ) in the form of an array ( 12 ) of independently tiltable mirrors (M 1 ), (M 2 ). Light from a distant starfield ( 2 ) is incident upon the mirror array ( 12 ). Each mirror (M 1 ), (M 2 ) reflects a respective image of the starfield, and these images are brought to a common overlapping focus at a detector ( 18 ) by a parabolic mirror ( 14 ). The mirrors M 1 , M 2 are tilted relative to each other such that when a given star pattern to be recognised is present in the field of view of the filter, each mirror reflects the image of a different star in the pattern onto a common point on a detector ( 18 ), thereby providing a detectable output intensity peak that indicates the presence of the star pattern in the field of view of the filter arrangement. |
| format | Patent |
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Light from a distant starfield ( 2 ) is incident upon the mirror array ( 12 ). Each mirror (M 1 ), (M 2 ) reflects a respective image of the starfield, and these images are brought to a common overlapping focus at a detector ( 18 ) by a parabolic mirror ( 14 ). The mirrors M 1 , M 2 are tilted relative to each other such that when a given star pattern to be recognised is present in the field of view of the filter, each mirror reflects the image of a different star in the pattern onto a common point on a detector ( 18 ), thereby providing a detectable output intensity peak that indicates the presence of the star pattern in the field of view of the filter arrangement.</description><edition>7</edition><language>eng ; fre ; ger</language><subject>AIRCRAFT ; ANALOGOUS ARRANGEMENTS USING OTHER WAVES ; AVIATION ; CALCULATING ; COMPUTING ; COSMONAUTICS ; COUNTING ; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ; GYROSCOPIC INSTRUMENTS ; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL ; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES ; MEASURING ; MEASURING ANGLES ; MEASURING AREAS ; MEASURING DISTANCES, LEVELS OR BEARINGS ; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS ; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS ; NAVIGATION ; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS ; OPTICS ; PERFORMING OPERATIONS ; PHOTOGRAMMETRY OR VIDEOGRAMMETRY ; PHYSICS ; RADIO DIRECTION-FINDING ; RADIO NAVIGATION ; SURVEYING ; TESTING ; TRANSPORTING ; VEHICLES OR EQUIPMENT THEREFOR</subject><creationdate>2004</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20041124&DB=EPODOC&CC=EP&NR=1479037A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20041124&DB=EPODOC&CC=EP&NR=1479037A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KOURIS, ARISTODIMOS</creatorcontrib><creatorcontrib>CHATWIN, CHRISTOPHER REGINALD</creatorcontrib><title>PATTERN RECOGNITION SYSTEM</title><description>A star pattern recognition system ( 1 ) comprises an optical filter arrangement ( 10 ) in the form of an array ( 12 ) of independently tiltable mirrors (M 1 ), (M 2 ). Light from a distant starfield ( 2 ) is incident upon the mirror array ( 12 ). Each mirror (M 1 ), (M 2 ) reflects a respective image of the starfield, and these images are brought to a common overlapping focus at a detector ( 18 ) by a parabolic mirror ( 14 ). The mirrors M 1 , M 2 are tilted relative to each other such that when a given star pattern to be recognised is present in the field of view of the filter, each mirror reflects the image of a different star in the pattern onto a common point on a detector ( 18 ), thereby providing a detectable output intensity peak that indicates the presence of the star pattern in the field of view of the filter arrangement.</description><subject>AIRCRAFT</subject><subject>ANALOGOUS ARRANGEMENTS USING OTHER WAVES</subject><subject>AVIATION</subject><subject>CALCULATING</subject><subject>COMPUTING</subject><subject>COSMONAUTICS</subject><subject>COUNTING</subject><subject>DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES</subject><subject>GYROSCOPIC INSTRUMENTS</subject><subject>IMAGE DATA PROCESSING OR GENERATION, IN GENERAL</subject><subject>LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES</subject><subject>MEASURING</subject><subject>MEASURING ANGLES</subject><subject>MEASURING AREAS</subject><subject>MEASURING DISTANCES, LEVELS OR BEARINGS</subject><subject>MEASURING IRREGULARITIES OF SURFACES OR CONTOURS</subject><subject>MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS</subject><subject>NAVIGATION</subject><subject>OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS</subject><subject>OPTICS</subject><subject>PERFORMING OPERATIONS</subject><subject>PHOTOGRAMMETRY OR VIDEOGRAMMETRY</subject><subject>PHYSICS</subject><subject>RADIO DIRECTION-FINDING</subject><subject>RADIO NAVIGATION</subject><subject>SURVEYING</subject><subject>TESTING</subject><subject>TRANSPORTING</subject><subject>VEHICLES OR EQUIPMENT THEREFOR</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2004</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJAKcAwJcQ3yUwhydfZ39_MM8fT3UwiODA5x9eVhYE1LzClO5YXS3AwKbq4hzh66qQX58anFBYnJqXmpJfGuAYYm5pYGxuaOhsZEKAEAEXYgKw</recordid><startdate>20041124</startdate><enddate>20041124</enddate><creator>KOURIS, ARISTODIMOS</creator><creator>CHATWIN, CHRISTOPHER REGINALD</creator><scope>EVB</scope></search><sort><creationdate>20041124</creationdate><title>PATTERN RECOGNITION SYSTEM</title><author>KOURIS, ARISTODIMOS ; CHATWIN, CHRISTOPHER REGINALD</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP1479037A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2004</creationdate><topic>AIRCRAFT</topic><topic>ANALOGOUS ARRANGEMENTS USING OTHER WAVES</topic><topic>AVIATION</topic><topic>CALCULATING</topic><topic>COMPUTING</topic><topic>COSMONAUTICS</topic><topic>COUNTING</topic><topic>DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES</topic><topic>GYROSCOPIC INSTRUMENTS</topic><topic>IMAGE DATA PROCESSING OR GENERATION, IN GENERAL</topic><topic>LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES</topic><topic>MEASURING</topic><topic>MEASURING ANGLES</topic><topic>MEASURING AREAS</topic><topic>MEASURING DISTANCES, LEVELS OR BEARINGS</topic><topic>MEASURING IRREGULARITIES OF SURFACES OR CONTOURS</topic><topic>MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS</topic><topic>NAVIGATION</topic><topic>OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS</topic><topic>OPTICS</topic><topic>PERFORMING OPERATIONS</topic><topic>PHOTOGRAMMETRY OR VIDEOGRAMMETRY</topic><topic>PHYSICS</topic><topic>RADIO DIRECTION-FINDING</topic><topic>RADIO NAVIGATION</topic><topic>SURVEYING</topic><topic>TESTING</topic><topic>TRANSPORTING</topic><topic>VEHICLES OR EQUIPMENT THEREFOR</topic><toplevel>online_resources</toplevel><creatorcontrib>KOURIS, ARISTODIMOS</creatorcontrib><creatorcontrib>CHATWIN, CHRISTOPHER REGINALD</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KOURIS, ARISTODIMOS</au><au>CHATWIN, CHRISTOPHER REGINALD</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>PATTERN RECOGNITION SYSTEM</title><date>2004-11-24</date><risdate>2004</risdate><abstract>A star pattern recognition system ( 1 ) comprises an optical filter arrangement ( 10 ) in the form of an array ( 12 ) of independently tiltable mirrors (M 1 ), (M 2 ). Light from a distant starfield ( 2 ) is incident upon the mirror array ( 12 ). Each mirror (M 1 ), (M 2 ) reflects a respective image of the starfield, and these images are brought to a common overlapping focus at a detector ( 18 ) by a parabolic mirror ( 14 ). The mirrors M 1 , M 2 are tilted relative to each other such that when a given star pattern to be recognised is present in the field of view of the filter, each mirror reflects the image of a different star in the pattern onto a common point on a detector ( 18 ), thereby providing a detectable output intensity peak that indicates the presence of the star pattern in the field of view of the filter arrangement.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre ; ger |
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| subjects | AIRCRAFT ANALOGOUS ARRANGEMENTS USING OTHER WAVES AVIATION CALCULATING COMPUTING COSMONAUTICS COUNTING DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES GYROSCOPIC INSTRUMENTS IMAGE DATA PROCESSING OR GENERATION, IN GENERAL LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING MEASURING ANGLES MEASURING AREAS MEASURING DISTANCES, LEVELS OR BEARINGS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS NAVIGATION OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PERFORMING OPERATIONS PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION SURVEYING TESTING TRANSPORTING VEHICLES OR EQUIPMENT THEREFOR |
| title | PATTERN RECOGNITION SYSTEM |
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