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164results about How to "Quickly and accurately determine" patented technology

Object identification system with adaptive transceivers and methods of operation

InactiveUS6982646B2Quickly and accurately receivedQuickly dissipating energySimultaneous aerial operationsFrequency-division multiplex detailsTransceiverEngineering
An object identification system includes a monitor and a plurality of transceivers that communicate over a common medium. The monitor includes a first transmitter, a first receiver, and a processor. Each transceiver includes a resonant circuit, a transmitter, a receiver, and an antenna coupled to the resonant circuit. The processor performs a method for performing transceiver communication that includes the steps of: (a) transmitting from the first transmitter a first frequency for a first duration; (b) after lapse of the first duration, receiving via the first receiver a response signal from at least one of the resonant circuits; (c) determining a second frequency from the received response signal; and (d) performing transceiver communication using the second frequency. Transceivers of the type having a resonant circuit coupled to an antenna, when operating in close proximity to each other, may interfere with the response from a single transceiver by absorbing the energy intended to be received by the transceiver, absorbing the energy transmitted by the transceiver, or altering the resonant frequency of the resonant circuit. By determining the second frequency for transceiver communication, the monitor may establish communication with the single transceiver at a frequency better suited for transferring operative power to the transceiver, conducting an interrogation protocol for identifying the transceiver, or for data transfer.
Owner:RF CODE +1

Method and apparatus for automatic pin detection in microarray spotting instruments

A method and apparatus are provided for automatically sensing the presence (or absence) of spot dispensers such as pins in various possible mounting locations in the printhead of a microarray spotting instrument. Pin-location data obtained by the method and apparatus is provided to the computer controller of the instrument, which uses the data to control the motion of the printhead during operation of the instrument. A pin detection apparatus includes one or more sensor elements that automatically sense possible pin locations in the printhead for the presence of pins. The sensor elements are preferably arranged in an array corresponding to the array of pin locations in the printhead so that pin detection at each pin location can be performed simultaneously. Various types of sensor elements can be used to locate pins in a printhead. For example, sensors can be used that are remote from or attached to a printhead. Pin sensors can be used that sense pin locations from various positions relative to the printhead including above or below the printhead. Also, pin sensing can be by contact or non-contact mechanisms. The method and apparatus allow pin positions in a printhead to be quickly and accurately determined, and without significant risk of damaging the pins, which are fragile.
Owner:PERKINELMER HEALTH SCIENCES INC

Lane Determining Device and Navigation System

Provided is a lane determining device that is capable of quickly and accurately determining the lane traveled by a host vehicle traveling on a road with a plurality of lanes in each direction. A lane determining device that determines the lane traveled by the host vehicle traveling on a road with a plurality of lanes in each direction comprises: road geometry obtaining means that obtains road geometry; imaging means that images the road; division line recognition means that recognizes a division line from an image imaged by the imaging means; first path computation means that computes a path of the host vehicle by repeatedly computing a distance from the division line recognized by the division line recognition means to the imaging means; second path computation means that computes a path of the host vehicle based on the road geometry obtained by the road geometry obtaining means and on autonomous navigation; third path computation means that computes a path of the host vehicle based on a first path computed by the first path computation means and on a second path computed by the second path computation means; and traveled lane determination means that determines the lane traveled by the host vehicle based on a third path computed by the third path computation means.
Owner:CLARION CO LTD
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