Abstract: An x-ray tube disclosed here in includes an emitter arranged to emit electrons on to a focal spot on a rotatable anode. The x-ray tube also includes a hollow tube arranged to receive electromagnetic radiation from the focal spot at one end of the hollow tube and transmit it to another end. The x-ray tube also includes two or more sensors arranged to detect the electromagnetic radiation through the hollow tube.

Abstract: Disclosed is a method of embedding both a robust and a fragile watermark in an information signal which is compressed so as to include first signal samples having a first given value and further signal samples having a different value, wherein embedding the robust watermark. The method comprises the steps of: modifying signal samples in accordance with a watermark pattern if the act of modifying results in the modified signal sample assuming the first value; and wherein embedding the fragile watermark comprises the steps of: counting the number of ‘ones’ remaining (R) in the signal as a result of embedding the robust watermark; counting the number of ‘ones’ discarded (D) from the signal as a result of embedding the robust watermark; and determining a fragile payload on the basis of said remaining (R) and discarded (D) ‘ones’.

Abstract: The present invention relates to a method, for a receiver adapted for receiving broadcasted signal from a broadcaster, of handling the execution of a first independent feature, where at least a part of the feature data needed to execute said first independent feature is comprised in said broadcaster signal together with feature data needed to execute at least a second independent feature, and wherein said feature data are broadcasted as ata carousels, the method comprising the steps of: receiving instructions identifying said first feature, wherein the instructions further comprise an identification that the identified first feature is to be executed, loading, from the data carousel, the feature data related to said first feature, into memory of said receiver, executing said identified feature.

Abstract: The navigation support through interaction fields in XML documents such as XHTML and SMIL is supported by the so-called tabindex attribute. In order to enable two dimensional navigation through the interaction fields, a method is proposed that divides the interaction fields into a plurality of sub-sets. Navigation according to one dimension navigates through the interaction fields across the plurality of sub-sets. Navigation according to the other dimension navigates through the interaction fields within a plurality of sub-sets.

Abstract: A resolved component of a multi-path signal is assigned to a rake finger of a spread spectrum rake receiver. The resolved component is variably delayed. On the variably delayed resolved component, an early-late detection is performed so as to determine whether the resolved component arrived early or late with respect to an optimum arrival time. A first pulse is generated if the early-late detection determines that said resolved component arrived early. A second pulse is generated if the early-late detection determines that the resolved component arrived late. The first and second pulses are counted. The first pulse causes counting in a first direction and the second pulse causes counting in a second direction. From the counting, a fractional-chip delay timing adjustment signal is derived, and fed back to adjust the variably delaying of the resolved component. Also from the counting a chip delay phase adjustment signal is derived, and fed back to control a phase of a pseudo-noise generator.

Abstract: An electronic assistant, incorporates electronic functions in a personal object that the user finds indispensable. Examples of personal objects include a cane, a walking stick, a walker, a wheelchair, a personal transportation vehicle, a purse, a key holder, a watch, a pendant, a hearing aid, an eyeglass frame, or a crutch. Electronics may include a PDA, a cell phone, a navigation module, a biosensor module, and an emergency alert module. The navigation module might include a GPS, an altimeter, an electronic compass, and/or a stored map. Biosensors may be directly incorporated into the personal device or communicate with a receiver therein if the biosensor is required to be attached directly to the user's body or surgically implanted. The emergency alert module may include an emergency button, and an emergency notification sequence stored in the electronic assistant capable of calling for assistance through the cell phone.