摘要:
A method for forming a radio frequency responsive target formed of a pattern of thin dipoles, each of which has a position and angular orientation within the pattern, which produce a composite analog radio frequency signal in response to an interrogating signal. A first metallic film layer is deposited on top of a non-conductive substrate, an etchant resistant pattern correspondent to the thin dipole pattern is deposited on top of the first metallic film layer, and a second metallic layer occupying the first metallic layer in at least one area without etchant is applied on top of the first metallic film layer. The etchant resistant pattern is removed to expose portions of the first metallic film layer, and the second metallic layer and the exposed portions of the first metallic film layer are etched simultaneously.
摘要:
A radio frequency automatic identification system detects targets which include a plurality of radio frequency resonators. Information is attributed to the target in accordance with the radio frequency response characteristics of the target, such as the resonant frequencies of resonators present, and/or the spatial locations within the target of the resonators. Preferred resonators include thin dipoles, which may be metallizations on a plastic film substrate. Information may be attributed to a target by fabricating the target with resonators disposed at locations to encode information in accordance with a predetermined encoding system; alternatively, resonators may be randomly disposed, and a translation code applied to convert the radio frequency information to particular information in a particular format. Readers for use in the system read the radio frequency response characteristics of a target in the near field of a radiating aperture which is illuminated by a radio frequency source. Items which may be encoded with radio frequency readable information include documents, credit cards, and computer diskettes.
摘要:
A bio-sensor device for the electro-chemical detection of a bacterial pathogen, the device including a sample chamber and an electronic data module. The sample chamber includes electrical probes to detect pathogenic antigens in a sample containing the bacterial pathogen. The electrical probes detect a reaction voltage corresponding to an antigen-antibody reaction occurring when the pathogenic antigens come into contact with an antibody specific for pathogenic antigens present in a reaction medium in the sample chamber and contacted by the electrical probes. The electronic data module detects and processes electrical signals from the conductive electrical probes corresponding to an amount of the antigen present in the sample, wherein the reaction voltage is detected at the time of the reaction.
摘要:
A disposable container for use with a system for dispensing a predetermined amount of a liquid. The container is filled with a dry beverage or the like and sealed, and has printed thereon using a metallic ink a plurality of lines or rings, each configured to generate a distinctive response to an imposed electromagnetic signal as a data bit detectable by a sensor proximate to the container. The sensor outputs to a processor a plurality of bits as a series of sequential bits. The processor initiates an action based on the sequence of bits.
摘要:
A label for tracking and tracing baggage in a baggage handling system is disclosed. The label includes resonators doped into the label. The resonators providing the label with a unique signature and are capable of being read from approximately 2 meters. A baggage handling system incorporating a resonator based label system is also disclosed. The system includes at least one piece of baggage, a label for tracking and tracing baggage in the baggage handling system, at least one reader for reading the label in order to properly direct the attached at least one piece of baggage, and at least one baggage mover suitable for moving the at least one piece of baggage within the baggage handling system. The label includes resonators doped into the label that provide the label with a unique signature, the label being attached to and referenced with said at least one piece of baggage.
摘要:
A system and method for verifying that a document is included in a document management system is disclosed. This system and method includes scanning of a scan track of a document, generating document data dependently upon the scanning, comparing the generated document data to stored document data, the stored document data generated dependently upon a prior scanning of the scan track of the document, and outputting an indication of the document being included in the document management system as determined by the comparing.
摘要:
A system and method for verifying that a document is included in a document management system is disclosed. This system and method includes radio frequency scanning at least a portion of the document, generating document data dependently upon the radio frequency scanning, comparing the generated document data to stored document data, the stored document data generated dependently upon a prior radio frequency scanning of at least a portion of the document, and outputting an indication of the document being included in the document management system as determined by the comparing.
摘要:
An apparatus, system and method that assesses the number and location of persons in a building. The invention may include none, one, two or more emitters, at least one sensor that senses reflected radiation indicative of a modification to the emitted radiation from multiple ones of the at least two emitters, and a communicative network, wherein sensing data from the at least one doppler sensor is forwarded to a remote central hub that manipulates the sensing data to an indication of the number and the location of the persons in the building. The sensors of the present invention may be, for example, doppler sensors, or any like sensor that senses biologically caused fluctuations within a monitored environment.
摘要:
A method for authenticating a document including: radio frequency scanning at least a portion of the document; optically scanning the document; generating a document data dependently upon the radio frequency scanning and optical scanning; comparing the generated data to stored data, the stored data being previously generated dependently upon a prior radio frequency scanning of the portion of the document and prior optical scanning of the document; and providing an output indicative of the document being authentic if the generated data is sufficiently identical to the stored data as determined by the comparing.
摘要:
A radio frequency automatic identification system detects targets which include solid resonators resonating at several frequencies, attributing information to the frequencies at which the target resonates. Preferred resonators are quartz crystals, which may be made by a process of heating quartz to soften it and cutting crystals to approximate size and resonant frequency. Resonators produced by such a process are measured to determine their actual resonant frequency, and preferably the crystals are sorted into predetermined frequency windows in accordance with their measured resonant frequency. A set of resonators having frequencies corresponding to predetermined data is selected from the sorted groups of resonators and incorporated into a target. The preferred target is an ink-like material having a plurality of resonators disposed in a matrix which is radio frequency transparent at the frequency of interest. Targets are preferably detected by repetitively sweeping the frequency of the interrogating signal through a range which includes the information-bearing range of the system.