Abstract: A device, for capacitive measurement of a height of a fluid in a tank, comprises at least one pair of capacitors extending in a longitudinal direction. A first capacitor forms first geometric patterns defining a first line capacitance. A second capacitor is opposite the first capacitor and forms second geometric patterns defining a second line capacitance. The first and second geometric patterns are arranged so that the first and second line capacitances, integrated in the longitudinal direction, have a sum that depends on the position of the fluid in the longitudinal direction. The first and second line capacitances, integrated in the longitudinal direction, have a difference that is a constant for reference positions of the fluid in the longitudinal direction.

Abstract: Methods for processing a video stream are provided. One embodiment comprises generating a comparison signature for a frame of a video stream and comparing the comparison signature to a reference signature. In another embodiment, a method comprises generating a reference signature for a frame of a video stream and assigning an action to the frame containing the reference signature. Example system embodiments for implementing the aforementioned methods are also provided.

Abstract: Methods for processing a video stream are provided. One embodiment comprises generating a comparison signature for a frame of a video stream and comparing the comparison signature to a reference signature. In another embodiment, a method comprises generating a reference signature for a frame of a video stream and assigning an action to the frame containing the reference signature. Example system embodiments for implementing the aforementioned methods are also provided.

Abstract: An apparatus for disconnecting an external data storage device from a computer. More specifically, there is provided an external data storage device comprising an activatable component to transmit a request to disconnect the external data storage device from a computer, wherein the activatable component comprises an apparatus capable of being physically or electrically activated.

Abstract: Apparatus according to one embodiment of the invention comprises a substrate, a processor provided on the substrate, and a computer-readable medium provided on the substrate. An access device operatively associated with the substrate interfaces with the processor and the computer-readable medium provided on the substrate.

Abstract: Data processing apparatus is described comprising a processor and at least one peripheral device. The processor is arranged to service the peripheral device either in an interrupt mode in which the peripheral device is serviced in response to interrupt signals generated by the peripheral device or in a timed mode in which the peripheral device is periodically polled and serviced if required. The apparatus has a dynamic switching arrangement for switching from the interrupt mode to the timed mode depending upon conditions dynamically determined within the apparatus, at least one of said conditions being that the rate at which the peripheral device generates interrupt signals exceeds a predefined or programmable threshold frequency. The rate of polling in the timed mode is less than the threshold frequency.