Abstract: A drive control apparatus for an electric car as can correct a synchronizing frequency without employing beacons, is proposed. A wheel-diameter correction information output means includes wheel-diameter information calculation means for calculating wheel-diameter calculation information expressive of a wheel diameter of an electric car, on the basis of two-phase current information. The wheel-diameter correction information output means also includes selection output means. The selection output means selects a wheel-diameter data output WD1, the wheel-diameter calculation information WD2 based on the wheel-diameter calculation means, or wheel-diameter default information WD0, and it outputs wheel-diameter correction information WD. A synchronizing-frequency calculation means outputs synchronizing frequency information FM on the basis of axle rotational-frequency information FR and the wheel-diameter correction information WD.

Abstract: A tag mounting device can temporarily mount a tag transmitter on a shipping container or trailer for tracking location of the shipping container or trailer. The tag mounting device includes a mounting frame having a support leg with opposing ends. A clamp mechanism is carried by the support leg for clamping the support leg onto a rim of a container or trailer such that the support leg extends against a surface of the container or trailer. A tag support member extends outward from the support leg. A tag transmitter is carried by the tag support member and operative for transmitting wireless signals to at least one receiver for subsequent processing to determine the location of the tag transmitter and a container or trailer on which the tag mounting device is mounted.

Abstract: A laser scanning device for scanning an interface surface of a product item is provided. The interface surface has visible information relating to the product item and a plurality of tags disposed thereon. Each tag contains coded data indicative of an identity of the product item and a plurality of locations on the interface surface. At least some of the tags are coincident with the visible information. The scanning device comprises: (a) a housing; (b) a laser for emitting a scanning beam from the housing; (c) a sensor for sensing the coded data contained a tag exposed by the scanning beam; and (d) a processor for determining, using the sensed coded data, product identity data indicative of the identity of the product item and location data indicative of a location of the exposed tag on the interface surface.

Abstract: A system for printing video information on a print medium, the system comprising: a mobile telecommunications device which comprises: a printer module to print the video information on the print medium; and, a sensor module to sense a print media identifier of the print medium.