Abstract: A single pass inkjet printer that utilizes a modular printing system with one or more self-contained printing modules, where each printing module is easy to remove and replace from a large printing machine, thus resulting in an overall system that is easy to service and maintain Each module is a self-contained printer including an ink supply, printhead drive electronics, and printhead assembly in order to provide one color or fluid of inkjet printing capability. Each module includes a precise three-point compliant self-aligning mount system to obtain accurate printhead positioning, and a unique integrated printhead tending system that includes a compact movable vacuum knife for cleaning the printheads, and a printhead capping station for sealing and protecting the printheads from the ambient environment when not in use.

Abstract: A self-contained collision warning device warns of possible collisions between people and between people and moving objects on opposite sides of doors and other visual barriers. Motion sensors detect the presence of people or moving objects and activate indicators that warn of the presence of unseen people and moving objects. The device can be mounted to a door or wall without modification to the door or wall or access to electrical power.

Abstract: A self-contained collision warning device warns of possible collisions between people and between people and moving objects on opposite sides of doors and other visual barriers. Motion sensors detect the presence of people or moving objects and activate indicators that warn of the presence of unseen people and moving objects. The device can be mounted to a door or wall without modification to the door or wall or access to electrical power.

Abstract: A method using radio frequency identification (RFID) tags for managing a promotional merchandise display at locational spots in a store includes providing a locational spot in the store with a locational RFID tag uniquely identifying the locational spot, providing the locational spot with the promotional merchandise display associated with merchandise RFID tags, wherein each of the merchandise RFID tags uniquely identifies one or more products in the promotional merchandise display, scanning for radio frequency signals from the locational RFID tag and the merchandise RFID tags at or near the locational spot, transmitting information obtained from the scanning to a server, analyzing the information at the server for a determination of whether the promotional merchandise display is in compliance with a promotional display plan; and if not, generating a notice to the store, the notice including information relating to the locational spot and the promotional merchandise display.

Abstract: A method using radio frequency identification (RFID) tags for managing a promotional merchandise display at locational spots in a store includes providing a locational spot in the store with a locational RFID tag uniquely identifying the locational spot, providing the locational spot with the promotional merchandise display associated with merchandise RFID tags, wherein each of the merchandise RFID tags uniquely identifies one or more products in the promotional merchandise display, scanning for radio frequency signals from the locational RFID tag and the merchandise RFID tags at or near the locational spot, transmitting information obtained from the scanning to a server, analyzing the information at the server for a determination of whether the promotional merchandise display is in compliance with a promotional display plan; and if not, generating a notice to the store, the notice including information relating to the locational spot and the promotional merchandise display.

Abstract: An unknown location for a transmitter/receiver is determined using a calibration process. An area is established with reference receivers at known locations and a mobile transmitter provides a location signal. An alternative embodiment uses reference transmitters and a mobile receiver. For calibration, the transmitter is placed at multiple measured locations and signal measurements are taken to generate a calibration map. Multiple signal measurements may be taken at each receiver, and multiple receivers may be used. In one embodiment, signal measurements include a near-field phase. In operation, one or more location signals are measured at one or more receivers. The measured signals are compared with the calibration maps to generate a set of comparison maps which are combined to generate a likelihood map. A likely region and most likely location are determined from the likelihood map and may be displayed relative to a map of the environment.

Abstract: A system and method for electromagnetic position determination utilizing a calibration process. For calibration, a transmitter is positioned at multiple locations in an area of interest and multiple receivers receive and record signal characteristics from the transmitter to generate a calibration data set. The unknown position of a transmitter may be determined by receiving signals from the transmitter by multiple receivers. A locator data set is generated based on the comparison between two received signal characteristics determined for each receiver. The locator data set is compared with the calibration data set to determine the unknown position. In one embodiment, the signal comparisons are the differences between electric and magnetic field phase. Further embodiments utilize signal amplitude differences. A reciprocal method utilizing a single receiver and multiple transmitter locations is disclosed.