Abstract: A system and method for distributing multi-program audio over a network includes the use of a Local Area Network, Wide Area Network, an Intranet and the Internet. The system includes a network audio source, a network distribution system and end devices. The method, for distributing multi-program audio over a network includes creating a network audio frame from a plurality of blocks of data from at least one audio program, placing each network audio frame within a transport structure for transport across the network and assigning an address to the transport structure prior to delivering the transport structure to a physical media.

Abstract: While one node (such as a wireless mobile node) facilitates a point-to-multipoint communication via a communications network (10), communication requests from other nodes in the multipoint audience are queued in a node queue (17). At some point (in a preferred approach, at the conclusion of the transmission by the one node), and typically for a predetermined amount of time, communication requests are further noted. These more recent indicia of a desire to communicate are then utilized to modify the node queue. Subsequent communications are then arranged, at least in part, based upon the modified node queue.

Abstract: A system and method for proxying Dynamic Host Configuration Protocol (“DHCP”) network services for a network device, such as, a customer premise equipment entity, on a network device, such as, a cable modem, include creating a specialized proxy task for the customer premise equipment entity on the cable modem. One method of the present invention includes intercepting DHCP message flow between a customer premise equipment having a specialized proxy task created on the cable modem and a DHCP server selected by the customer premise equipment entity. The methods further include modifying lease time intervals prior to providing a routable network address lease to a customer premise equipment entity and renewing an initial lease for the customer premise equipment entity by a cable modem prior to expiration of the lease time interval provided by a DHCP server. The methods include using known protocols, such as, for example, the Dynamic Host Configuration Protocol.

Abstract: A mobile unit (14) that seeks to make use of near-real-time multicast communication services via a corresponding services server (13) can effect at least a measure of authentication with a session initiation protocol infrastructure via a RADIUS server (12) through intermediation of a mediation server (10). In addition, or in lieu thereof, billing for such services can be facilitated through the mediation server (10).

Abstract: While one node (such as a wireless mobile node) facilitates a point-to-multipoint communication via a communications network (10), communication requests from other nodes in the multipoint audience are queued in a node queue (17). At some point (in a preferred approach, at the conclusion of the transmission by the one node), and typically for a predetermined amount of time, communication requests are further noted. These more recent indicia of a desire to communicate are then utilized to modify the node queue. Subsequent communications are then arranged, at least in part, based upon the modified node queue.

Abstract: A magnetic resonance imaging assembly for generating a substantially homogenous magnetic field within an imaging-field-zone to produce an image of a region (anatomy-of-interest (2)) in a patient (1) comprises a bore into which the region of the patient can be placed, and a plurality of coaxially arranged coils (30a, b, c, d) surrounding the bore. The coils are arranged to generate a substantially homogenous magnetic field in the imaging-field-zone in the bore. The bore has a diameter (38) substantially larger than the axial length (39) of the bore. The large bore enables any region of the patient to be imaged to be placed in the region of highest homogeneity within the imaging field zone (11) and provides for access to the region of the patient being imaged to a health-care professional (5) during the imaging process.

Abstract: A head-end in a data-over-cable system transmits a multicast message in a downstream channel to all the cable modems in a particular MAC layer. The message includes an address field that contains an upstream channel multicast MAC address that identifies a particular channel, and is used to send a multicast message for which only cable modems transmitting in the upstream direction in that channel are to respond. When the message is received by the cable modems, the cable modems compare the upstream channel multicast MAC address with addresses stored in a memory. If a match is found, indicating that the cable modem happens to transmit in the upstream direction in the particular channel, it processes the message. If no match is found, the message is discarded.

Abstract: The present embodiments provide a system and method for seamlessly roaming between different wireless access technologies. In an exemplary embodiment, a universal wireless access gateway (UWAG) may include a shared component and a first environment access module (EAM) that communicates with the shared component to enable access to a first network using a first wireless access technology. Additionally, the UWAG may include a second EAM that communicates with the shared component. The second EAM and shared component may enable access to a second network using a second wireless access technology that differs from the first wireless access technology. An exemplary data structure including various pointer blocks and data blocks may also be provided for switching between different wireless access technologies.

Abstract: A method and system for provisioning network addresses in a data-over-cable system. Provisioning of network addresses allows multiple “always-on” network devices with multiple associated devices to be used on a data-over-cable system with a limited public network address pool. The “always-on” network devices provide services, such as, Voice over Internet Protocol (“VoIP”), that typically require instant access to data-over-cable system. Network devices such as “always-on” cable modems may allocated private network addresses (e.g., Internet Protocol addresses) on the data-over-cable system. The private network addresses are not addressable outside the data-over-cable system. Other network devices associated with the cable modems, such as customer premise equipment, may be allocated public network addresses (e.g., Internet Protocol Addresses) on the data-over-cable system. The public network addresses are addressable outside the data-over-cable system.

Abstract: A magnetic resonance imaging assembly for generating a substantially homogenous magnetic field within an imaging-field-zone to produce an image of a region (anatomy-of-interest (2)) in a patient (1) comprises a bore into which the region of the patient can be placed, and a plurality of coaxially arranged coils (30a, b, c, d) surrounding the bore. The coils are arranged to generate a substantially homogenous magnetic field in the imaging-field-zone in the bore. The bore has a diameter (38) substantially larger than the axial length (39) of the bore. The large bore enables any region of the patient to be imaged to be placed in the region of highest homogeneity within the imaging field zone (11) and provides for access to the region of the patient being imaged to a health-care professional (5) during the imaging process.

Abstract: A magnet structure particularly suitable for partial human body magnetic resonance imaging. A superconductive magnet assembly consisting of a plurality of axially symmetric low and/or high temperature superconductors through which currents are induced to flow. One or more of the superconductors are at locations close to the region of homogeneous field. Geometry and locations of the superconductors and current through the superconductors are such that a substantially homogenous magnetic field results in a selected region.

Abstract: An r.f. antenna for use in a magnetic resonance method or apparatus comprising two sub-systems (17A, 17B) each comprising a relatively large area conductor means (29A, 29B) and a return current path conductor means (33A, 33B) which together act as a transmission line tuned to the frequency of the r.f. The two sub-systems are placed on opposite sides of a body (7) under examination with the large area conductor means in facing relationship, and when used to apply an r.f. field to the body, are excited so that the r.f. currents in the two large area conductor means at any given instant are in opposite directions. The large area conductor means of each sub-system may be planar or convexly or concavely curved, and may comprise a single sheet of conducting material or an array of conducting strips in spaced relationship.