Abstract: An improved system for data card emulation involves a phone that can emulate any one of multiple data cards corresponding to multiple entities. The phone includes a memory for storing bar code information corresponding to data cards of the multiple entities. It provides an interface for identifying an entity and a display for displaying a bar code corresponding to a data card of the entity. The interface may include at least one of a bar code reader or a bar code emulator. The interface may include at least one of a magnetic stripe reader or a magnetic stripe emulator. The interface may be a transceiver such as a pulsed light transceiver.

Abstract: A compressed gas system component coupling device and method are described herein that use correlated magnets to enable a first component to be secured and removed from the second component. Some examples of components of the compressed gas system include a first stage regulator, a second stage regulator, an air pressure gauge, a dive computer, an air hose, a tank valve and a buoyancy control device. Furthermore the compression force created by the correlated magnets mounted on the first and second components create a hermetic seal therebetween.

Abstract: An improved field emission system and method. The invention pertains to field emission structures comprising electric or magnetic field sources having magnitudes, polarities, and positions corresponding to a desired spatial force function where a spatial force is created based upon the relative alignment of the field emission structures and the spatial force function. The invention herein is sometimes referred to as correlated magnetism, correlated field emissions, correlated magnets, coded magnetism, or coded field emissions. The magnetic field sources may be arranged according to a code having a desired autocorrelation function. In particular, a high peak to sidelobe autocorrelation performance may be found desirable. Specific exemplary embodiments are described with magnetic field sources arranged in a ring structure. Exemplary codes are described and applied to magnetic field source arrangements. Specific codes found by the inventors are described.

Abstract: An improved system and method for monitoring objects, people, animals, or places uses a passive Modulating Reflector (MR) tag where an antenna is alternately short and open circuited according to a time-varying pattern by a modulating network thereby causing the reflective characteristics of the antenna to vary in accordance with the time-varying pattern. When an interrogator transmits an RF waveform that impinges on the antenna, the return signal reflecting off the antenna is modulated in accordance with the time-varying pattern allowing a remote receiver to demodulate information from the modulated return signal. The MR tag can be used with a wide variety of tag-interrogator configurations employing monostatic and/or bistatic radar techniques to allow monitoring, locating, and/or tracking of objects, people, animals, or place with which MR tags are associated.