Abstract:
The presence or absence of objects is determined by interrogating or exciting transponders coupled to the objects using pulsed wide band frequency signals. Interrogation is broken down into a number of subsample scan cycles each having interrogation cycles a start time forward in time by a fraction of a period of an expected transponder response signal. Ambient or background noise is evaluated and a threshold adjusted based on the level of noise. Adjustment may be based on multiple noise measurements or samples. Noise detection may be limited, with emphasis placed on interrogation to increase the signal to noise ratio. Matched filtering may be employed. Presence/absence determination may take into account frequency and/or Q value to limit false detections. Appropriate acts may be taken if detected noise is out of defined limits of operation, for example shutting down interrogation and/or providing an appropriate indication.
Abstract:
The invention provides an image display processing device and an image display processing program for displaying information concerning diagnosis of correspondence with an RF tag. The image display processing device includes a unit for obtaining diagnostic information concerning correspondence when correspondence between the RF tag and an RFID reader/writer has been successful, and a display controller configured to make a display unit display an image based on the diagnostic information. The diagnostic information includes correspondence margin based on a characteristic value obtained from the correspondence signal.
Abstract:
A device and method for identification of at least one object in an image registered with an image registration device, wherein each of the at least one object is provided with a wireless tag. The device includes at least one sensor for registering a wireless signal from the wireless tag and for registering at least one direction to the wireless tag, wherein the wireless signal includes identification for the object.
Abstract:
During the data reading process, data is stored in an electronic device (10) incorporated into a tyre identified by a registration number and a week of manufacture number, the device (10) comprising data storage means (20), the storage means (20) comprising a data storage zone comprising a storage interval in the form of bits, this interval being known as a restricted interval and comprising a number of bits less than or equal to 38. During the process: the data stored in the restricted interval is read; and the read data is decoded in order to determine the registration number and the week number of the tyre.
Abstract:
Provided are an RFID tag movement distinguishing method and an RFID tag movement distinguishing program with which are an RFID tag that has moved in front of an antenna and an RFID tag that is static are identified based on chronological data of received radio wave strength, a phase, or a Doppler frequency of a read RFID tag obtained from a general RFID reader and a general antenna. Chronological read data of a plurality of RFID tags including a moving RFID tag and a static RFID tag is acquired by an RFID reader, and the static RFID tag is specified by a static RFID tag filter based on information of a plurality of read RFID tags based on a certain parameter. In the RFID tag movement distinguishing method, the static RFID tag filter identifies the moving RFID tag by identifying the static RFID tag and the moving RFID tag using at least one or more of individual static RFID tag filter among a quick-read filter, an RSSI absolute value filter, an RSSI non-contiguous increase filter, an RSSI valley-shaped filter, an excess read filter, a phase shift reduction filter, and a vertical direction movement filter.
Abstract:
A system having first and second disposable or rechargeable batteries with outer surfaces. RFID tags having similar resonant frequencies are positioned on the outer surfaces of the batteries. The RFID tags in the system are positioned adjacent to one another to increase signal coupling with a reader.
Abstract:
Methods and apparatuses, including computer program products, are described for developing workflow processes associated with data-encoded tags. A server receives tag data associated with each of a plurality of data-encoded tags from one or more mobile devices capable of reading data-encoded tags. The server generates a collection of tags to include each of the plurality of data-encoded tags. The server develops a workflow process associated with the collection of tags using the received tag data, and stores the workflow process in a data storage module.
Abstract:
A system for controlling shopping carts usage in the vicinity of a parking lot, the system comprising: a device that repeatedly transmits a lock command from a directional antenna (282), said directional antenna mounted above ground and angled downward to create a lock zone (286) in which shopping cart use is restricted, said lock zone encompassing an exit area associated with the parking lot; and a plurality of shopping carts, each shopping cart comprising a brake mechanism, and comprising an RF communication circuit that is responsive to the lock command by activating the brake mechanism.