Abstract: A method for dynamically associating, by a server, access rights with a resource includes the step of receiving, by the server, a request for a resource from a client. The server requests, from a policy engine, an identification of a plurality of access rights to associate with the resource, the plurality of access rights identified responsive to an application of a policy to the client. The server associates the resource with the plurality of access rights via a rights markup language. The server transmits the resource to the client with the identification of the associated plurality of access rights. An application program on the client makes an access control decision responsive to the associated plurality of access rights. The application program provides restricted access to the resource responsive to the access control decision.

Abstract: An apparatus in one example comprises a differential amplifier and a differential mixer. The differential amplifier is configured to receive a multi-octave differential input signal and output an amplified multi-octave differential output signal. The differential amplifier is also configured to substantially reduce second order harmonic distortion of the amplified multi-octave differential output signal through common mode rejection. The differential mixer configured to multiply the amplified multi-octave differential output signal with a local oscillator input signal and output an up-converted sub-octave differential output signal. The multi-octave differential input signal and the up-converted sub-octave differential output signal comprise a substantially same bandwidth.

Abstract: A phased array antenna structure capable of operation at millimeter-wave frequencies and having multiple ring slot radiator elements (10). The RF feed structure for each radiator element includes a feed via (28) extending part-way through a multi-layer structure (FIG. 3) on which the radiator elements (10) are formed and a strip line feed probe (30) extending from the via (28) toward the radiator element. A key feature facilitating high-frequency operation is the inclusion of multiple mode suppressors (32) surrounding the via (28) and providing a smooth transition from a coaxial mode of RF transmission to a strip line mode of RF transmission. The feed probe (30) is tailored to provide either a narrow-band or a wideband frequency characteristic.

Abstract: An exercise cycle apparatus displays audio/visual data while in use. The apparatus includes means for displaying audio/visual data positioned at the handlebars of the cycle. A pedal mechanism generates rotational energy and energy converter is connected between the pedal mechanism and the audio/video display means. The energy converter converts the generated rotational energy into electrical energy and the electrical energy is provided to the audio/video display means for displaying the audio/video data thereon.

Abstract: A phased array antenna structure capable of operation at millimeter-wave frequencies and having multiple ring slot radiator elements (10). The RF feed structure for each radiator element includes a feed via (28) extending part-way through a multi-layer structure (FIG. 3) on which the radiator elements (10) are formed and a strip line feed probe (30) extending from the via (28) toward the radiator element. A key feature facilitating high-frequency operation is the inclusion of multiple mode suppressors (32) surrounding the via (28) and providing a smooth transition from a coaxial mode of RF transmission to a strip line mode of RF transmission. The feed probe (30) is tailored to provide either a narrow-band or a wideband frequency characteristic.