A container (300) adapted to store a quantity of metal powder (101, 301), the container (300) comprising a container body having an opening and a sensing device (111, 121) for sensing the temperature of the powder (101, 301) and/or the humidity level inside the container (300), wherein a first reading received from the sensing device (111, 121) is compared to a second reading received from a second sensing device configured to sense the temperature and/or humidity level of an environment outside of the container, and based on the first reading and the second reading, a user is provided within an indication about whether the container can be opened.

According to one aspect of the presently disclosed subject there is provided a system implemented in a mobile carrier for determining a position of the mobile carrier by using a processing and memory circuitry (PMC) and a satellite communications on the move (SOTM) antenna system, being configured to maintain a communications link from a satellite communications (SATCOM) having a spatial position. The system is configured to obtain data indicative of the spatial position of the SATCOM, the estimated altitude of the mobile carrier and the direction of the antenna towards the SATCOM spatial position and to determine the position of the mobile carrier.

A unique electronic communications account is generated and linked to a physical address of a user. A network of electronic mail addresses linked to physical addresses can be used for the transmission of information in electronic or physical form. Users can send information to a single recipient or multiple recipients by selecting the recipient or an area of recipients on a map generated by the system. A plurality of users can use a single e-mail address linked to a physical address through creation and storage of user profiles. Users can deactivate and transfer their unique electronic mail address upon relocation to a new physical address. The communication platform can overcome technical problems and limitations of electronic mail existing today. The communication platform can create a transparent global communication that can be achieved via an electronic communications account that can be created for every physical address in the world.

A unique electronic communications account is generated and linked to a physical address of a user. A network of electronic mail addresses linked to physical addresses can be used for the transmission of information in electronic or physical form. Users can send information to a single recipient or multiple recipients by selecting the recipient or an area of recipients on a map generated by the system. A plurality of users can use a single e-mail address linked to a physical address through creation and storage of user profiles. Users can deactivate and transfer their unique electronic mail address upon relocation to a new physical address. The communication platform can overcome technical problems and limitations of electronic mail existing today. The communication platform can create a transparent global communication that can be achieved via an electronic communications account that can be created for every physical address in the world.

A radio frequency (RF) imaging device comprises an RF sensor assembly, a position sensor, a processor, and a memory. The RF sensor assembly receives an RF signal for capturing an RF image of a portion of a space behind a surface. The position sensor receives a plurality of signals respectively emitted by a plurality of position markers at known positions relative to the surface. The processor determines a plurality of angles at which the plurality of signals respectively arrive at the position sensor and determines, based on the plurality of angles and the known positions of the plurality of position markers, a position of the RF imaging device relative to the surface. The memory stores the RF image in association with the determined position of the RF imaging device. A time-of-flight or triangulation of signal data may be used for position determination.

Several embodiments of the invention provide for a system and processes for joint entity and object tracking using RFID and a detection network. The use of RFID and a detection network allows for the efficient detection, tracking, and recording of an entity path. Various embodiments of the invention allow the system to track the paths of entities through a space and to monitor the entities' interactions with objects in the space. In addition to tracking entities' paths, the system of some embodiments associates each entity with various objects that each entity interacts with, and uses targeted reads of the associated objects to distinguish and verify the paths associated with each entity. The paths and interactions of the entities with objects in the space are then recorded and analyzed to provide insight about the different entities and about their interactions within the space.

A method and apparatus for an angle meter cooperatively using two or more non-contact distance meters for measuring distances to a surface along substantially parallel lines. The measured distances are used for estimating or calculating the angle to the surface and the distance to the surface. The distance meters may use optical means, where a visible or non-visible light or laser beam is emitted and received, acoustical means, where an audible or ultrasound sound is emitted and received, or an electromagnetic scheme, where radar beam is transmitted and received. The distances may be estimated using a Time-of-Flight (TOF), homodyne or heterodyne phase detection schemes. The distance meters may share the same correlator, signal conditioning circuits, or the same sensor. Two or more angle meters may be used defining parallel or perpendicular measurement planes, for measuring angles between surfaces, and for estimating physical dimensions such as length, area or volume.

A process and systems for constructing arbitrarily large virtual arrays using two or more collection platforms (e.g. AUX and MOV systems) having differing velocity vectors. Referred to as Motion Extended Array Synthesis (MXAS), the resultant imaging system is comprised of the collection of baselines that are created between the two collection systems as a function of time. Because of the unequal velocity vectors, the process yields a continuum of baselines over some range, which constitutes an offset imaging system (OIS) in that the baselines engendered are similar to those for a real aperture of the same size as that swept out by the relative motion, but which are offset by some (potentially very large) distance.

A system and method for locating radio-frequency identification tags within a predetermined area. The method can incorporate sub-threshold superposition response mapping techniques, alone, or in combination with other methods for locating radio-frequency identification tags such as but not limited to time differential on arrival (TDOA), frequency domain phase difference on arrival (FD-PDOA), and radio signal strength indication (RSSI). The system can include a plurality of antennas dispersed in a predefined area; one or more radio-frequency identification tags; a radio-frequency transceiver in communication with said antennas; a phase modulator coupled to the ra-dio-frequency transceiver; and a system controller in communication with said transceiver and said phase modulator. Calibration techniques can be employed to map con-structive interference zones for improved accuracy.

An apparatus includes left and right shoe sensor systems. A shoe sensor system includes pressure sensing elements, an accelerometer, and a control circuit that includes a power source circuit, a clock circuit, a processing module, memory, a wireless communication transceiver, sensor communication links, and an accelerometer communication link. The processing module samples data from the pressure sensing element to produce foot force data and samples data from the first accelerometer to produce three-dimensional foot data. The wireless communication transmits as outbound radio frequency (RF) signals regarding the foot force data and the three-dimensional foot data.