Abstract: A system comprises a plurality of devices which communicate over a network. At least one of the devices transmits information to at least one other of the devices in information messages over a virtual circuit established therebetween using the network. The other device can transmit information concerning, for example, predetermined conditions in the other device in connection with the virtual circuit using signalling messages, which are transmitted by the other device over the virtual circuit to the one device. The one device includes a plurality of mailboxes associated with the virtual circuit, and the other device, that is, the device that is to transmit signalling messages, includes a transmit signal queue including a plurality of entries each associated with one of the mailboxes.

Abstract: Water miscible pharmaceutical compositions containing up to about 40% of a macrolide antibiotic are prepared by reaction of the macrolide with acid in a non-aqueous water miscible organic solvent system.

Abstract: A data communication system for communicating data between a bus running at a first clock frequency and a circuit block operating synchronously with the data bus at a second clock frequency. The system includes a clock generator for generating a bus clock signal at the first clock frequency and a chip clock signal at the second clock frequency wherein the first and second clock signal frequencies are in the ratio of (N-1):N where N is an integer greater than 1 and wherein the bus and chip clock signals are synchronized once every N cycles of the chip clock signal. The clock generator also generates a synchronization signal indicating the chip clock signal cycle in which the bus and chip clock signals are synchronized. The circuit block includes an interface circuit for receiving and transmitting data on the bus.

Abstract: The present invention is concerned with an oral pharmaceutical formulation containing a proton pump inhibitor (PPI) which is suitable for the treatment of gastric acid related diseases in man and animals. More specifically, the composition is a paste, and is particularly suitable for delivery of a proton pump inhibitor to horses.

Abstract: A memory controller receives reads, memory writes, and cache writes. A pending read is selected and issued to memory. When a response is received from memory, all cache writes are checked to determine whether any correspond to the pending read. If there is a corresponding cache write, the data from the corresponding cache write is used to respond to the pending read. Otherwise, prior memory writes arc checked to determine whether any correspond to the pending read. If there is a corresponding prior memory write, the data from the corresponding prior memory write is used to respond to the pending read. A coherency check from associated caches may also be performed, and the appropriate data returned to the processor that requested the read. Three queues may control the order in which memory access is performed. A read queue that contains read requests is typically given highest priority, and therefore reads are generally serviced first.

Abstract: A data communication system for communicating data between a bus running at a first clock frequency and a circuit block operating synchronously with the data bus at a second clock frequency. The system includes a clock generator for generating a bus clock signal at the first clock frequency and a chip clock signal at the second clock frequency wherein the first and second clock signal frequencies are in the ratio of (N-1):N where N is an integer greater than 1 and wherein the bus and chip clock signals are synchronized once every N cycles of the chip clock signal. The clock generator also generates a synchronization signal indicating the chip clock signal cycle in which the bus and chip clock signals are synchronized. The circuit block includes an interface circuit for receiving and transmitting data on the bus.

Abstract: A coherency scheme of use with a system having a bus, a main memory, a main memory controller for accessing main memory in response to transactions received on the bus, and a set of processor modules coupled to the bus. Each processor module has a cache memory and is capable of transmitting coherent transactions on the bus to other processor modules and to the main memory controller. Each processor module detects coherent transactions issued on the bus and performs cache coherency checks for each of the coherent transactions. Each processor module has a coherency queue for storing all transactions issued on the bus and for performing coherency checks for the transactions in first-in, first-out order. When a module transmits a coherent transaction on a bus, it places its own transaction into its own coherency queue.

Abstract: A bus system having a bus arbitration scheme. The bus system includes a bus and a plurality of client modules coupled to the bus. Each of the client modules is capable of transmitting information on the bus to another of client module, and only one client module is entitled to transmit information on the bus at any time. A module entitled to transmit information on the bus has control of the bus for a minimum period of time defining a cycle. To determine which module is entitled to use the bus, each client module generates an arbitration signal when it seeks to transmit information on the bus. Each client module has an arbitration signal processor responsive to the arbitration signals for determining whether the module is entitled to transmit information on said bus. The system preferably also contains a host module that informs the client modules what types of transactions allowed on the bus in a given cycle.

Abstract: There is disclosed a topical multiple-point-application formulation containing a solution of a polymeric material and an avermectin compound (active ingredient) which has been discovered to provide superior efficacy against ectoparasites, such as fleas and ticks and endoparasites such as nematodes and heartworms, when compared to conventional formulations. The formulation contains the avermectin active ingredient and up to 50% of the polymeric material.

Abstract: A method and apparatus for coaxing a novice operator into dialogue with a touch screen display and for directing the operator to program the machine including a soft display actuator displayed on the first frame of the touch screen display of the user interface, a pointer displayed adjacent to the acutator, the pointer simulating a human action with respect to the actuator, the human action suggesting to the operator the manual engagement of the actuator, and a control responsive to the manual engagement of the actuator to provide a subsequent frame on the touch screen display of the user interface, the subsequent frames providing progressively more complex operator options.

Abstract: A fault tolerant power supply comprises a first rectifier and a second rectifier with a boost circuit for correcting line current harmonics. The second rectifier, the boost circuit and output diodes are connected in parallel with the first rectifier. A capacitor circuit is charged through the second rectifier and boost converter when a 240 volt line input is present, but the circuit is charged through the first rectifier when a 120 volt line input is present. With failure of the boost converter circuit or with removal of the boost converter circuit from the system, the capacitor circuit is charged through the first rectifier.

Abstract: A fault tolerant power supply comprises a first rectifier and a second rectifier with a boost circuit for correcting line current harmonics. The second rectifier, the boost circuit and output diodes are connected in parallel with the first rectifier. A capacitor circuit is charged through the second rectifier and boost converter when a 240 volt line input is present, but the circuit is charged through the first rectifier when a 120 volt line input is present. With failure of the boost converter circuit or with removal of the boost converter circuit from the system, the capacitor circuit is charged through the first rectifier.

Abstract: Touch dialogue User Interface (U.I.) for programming a reproduction machine using a touch control CRT screen with display providing a message area, U.I. state selections, and plural tabbed file folders, each file folder when opened in turn displaying a smaller card file of tabbed cards with adjacent work area, each card in the card file when opened providing a display of icons representing first level machine programming selections for touch selection, each icon when touched displaying further icons representing second level programming selections in the work area for touch selection.

Abstract: An AC to DC converter comprises a bridge rectifier followed by a boost circuit. The boost circuit includes an inductor, diode and load capacitor in series and a shunting switch connected to shunt the diode and load capacitor. The control circuit for switching the shunting switch comprises a differential circuit, a multiplier and a duty cycle generator in a feedback loop which maintains a constant output voltage on the capacitor. To eliminate the response to ripple on the output voltage, the differential circuit does not respond to voltages within a dead band.

Abstract: A liquid container is shown having improved pouring and stacking qualities. The container has a body with a cylindrical exterior and opposed end walls. A bottom support extends tangentially from a first point on the cylindrical exterior surface and includes a planar portion which forms a base for supporting the body in an upright position. A transport handle extends from a second point on the cylindrical exterior surface for use in rotating the container between the upright position and the pouring position in which the cylindrical exterior surface rolls over the surrounding support surface during use.

Abstract: Ivermectin, an antiparasitic agent which is insoluble and unstable in water, is formulated in glycerol formal and propylene glycol. These liquid formulations are suitable for parenteral administration for the treatment of parasitic infections and demonstrate improved efficacy and a broadened spectrum over previous formulations.