Transponder Detection System and Method
A transponder detection system (50) for detecting the presence at a detection area (22) of a vehicle (100) on which the transponder (3) is mounted. Two antenna arrays (32, 34) are located on opposite sides of the detection area (22), and have their boresights (B) directed to the detection area. For...
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| creator | KNITTLE, ROBERT C O'CONNOR, ROGER J |
| description | A transponder detection system (50) for detecting the presence at a detection area (22) of a vehicle (100) on which the transponder (3) is mounted. Two antenna arrays (32, 34) are located on opposite sides of the detection area (22), and have their boresights (B) directed to the detection area. For each array, a sum and difference signal of signals received from the transponder are measured. The sum channel signal is used to establish whether a transmission has occurred, and the difference channel signal is used to isolate any transponder that is at the detection area. |
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Two antenna arrays (32, 34) are located on opposite sides of the detection area (22), and have their boresights (B) directed to the detection area. For each array, a sum and difference signal of signals received from the transponder are measured. The sum channel signal is used to establish whether a transmission has occurred, and the difference channel signal is used to isolate any transponder that is at the detection area.</description><edition>6</edition><language>eng ; fre</language><subject>ANALOGOUS ARRANGEMENTS USING OTHER WAVES ; ANTENNAS, i.e. RADIO AERIALS ; BASIC ELECTRIC ELEMENTS ; CHECKING-DEVICES ; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ; ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRICITY ; FARE-REGISTERING APPARATUS ; FRANKING APPARATUS ; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES ; MEASURING ; PHYSICS ; RADIO DIRECTION-FINDING ; RADIO NAVIGATION ; TESTING ; TICKET-ISSUING APPARATUS ; TRANSMISSION</subject><creationdate>1996</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=19960531&DB=EPODOC&CC=CA&NR=2164031A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19960531&DB=EPODOC&CC=CA&NR=2164031A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KNITTLE, ROBERT C</creatorcontrib><creatorcontrib>O'CONNOR, ROGER J</creatorcontrib><title>Transponder Detection System and Method</title><description>A transponder detection system (50) for detecting the presence at a detection area (22) of a vehicle (100) on which the transponder (3) is mounted. 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| language | eng ; fre |
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| subjects | ANALOGOUS ARRANGEMENTS USING OTHER WAVES ANTENNAS, i.e. RADIO AERIALS BASIC ELECTRIC ELEMENTS CHECKING-DEVICES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY FARE-REGISTERING APPARATUS FRANKING APPARATUS LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING TICKET-ISSUING APPARATUS TRANSMISSION |
| title | Transponder Detection System and Method |
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