摘要:
An improved windsurfing spreader having at least one pulley mounted thereon to rotatably engage the harness line and mounted in a manner to facilitate disengagement of the harness line from the pulley, when desired, and which is very light in weight and which is strong enough and rigid enough to withstand the stresses of windsurfing, yet which is sufficiently flexible to provide a shock-absorbing function to prevent injury to the surfer.
摘要:
An interprocessor interrupt hardware unit ("IIU") for processing interrupts between a remote processor and a host processor on a multiprocessor system. The IIU off loads tasks involved in processing interrupts from the operating kernel of the remote processor. Control blocks of interrupt information and commands are stored in Data Random Access Memory (DRAM) by the remote processor. The remote processor sets up a buffer of control block memory addresses in DRAM for the IIU to access to retrieve the control blocks from DRAM. The IIU retrieves a control block and loads the control block into registers. The IIU then issues an interrupt request to the host processor. The host processor receives the interrupt request and reads the registers to obtain the control block. The host processor clears the interrupt request and indicates to the IIU that the interrupt has been processed. The IIU then notifies the remote processor that the interrupt has been processed. The IIU may be programmed to notify the remote processor of completion either by an interrupt or by setting a status flag in the DRAM.
摘要:
The present invention is directed to tamper resistant devices for discouraging and/or preventing unauthorized persons, such as patients, from tampering with access to in-situ intravenous (IV) medical catheter devices (placed either centrally or peripherally) and their corresponding medical fluid lines with access ports. The tamper resistant devices are particularly designed to prevent unauthorized patient access to the IV and to prevent any insertion/injection of non-prescribed medications/foreign substances through their IV access and associated ports.
摘要:
There is provided a Direct Access Memory Unit (DAu) that is associated with a remote processor module in a multi-processing system. The DAU performs Direct Memory Access (DMA) operations independently of a Central Processing Unit (CPU) in the remote processor module. The CPU requests a DMA by writing information relevant to the DMA to the remote processor's memory. The address of each control block is written to a circular queue, also in the remote processor's memory. The DAU determines if there are any control blocks to process and if so, the DAU will perform the DMA operation (reading data from or writing data to the memory of the host processor), all without the intervention of the CPU of the remote processor module. The CPU adds a new control block by loading its address in a location in the circular queue that is ahead of the circular queue location that the DAU is processing. The CPU can abort a pending DMA request during DAU operations by setting a skip bit in the control block. Upon the completion of performing a DMA request, the DAU will set a complete bit in the control block in the remote processor's memory. An interrupt can also be sent to the CPU, wherein the CPU is advised that a DMA request has been completed. The data in a DMA operation is sent in bursts to a buffer located between two busses having different data transmission rates.
摘要:
A manually operable creep control mechanism for a tractor of the like having multiple direct drive gears and a creep clutch. The mechanism comprises an elongated arm pivotally mounted on the control box cover plate adjacent the slot through which the gear shift lever travels to shift into the direct drive gear positions. In a first position, the arm is clear of the slot and the gear shift lever is free to move through the entire range of gear positions, while preventing inadvertent pivoting of the arm out of the first position once the lever is in a predetermined low gear, such a fourth. When pivoted to a second position, the arm lies across the slot and limits shifting of the lever to a predetermined higher gear, such as twelfth, while preventing inadvertent movement of the arm out of the second position once the lever is at or beyond the fourth gear position. A flexible switching cable is connected to the arm and an electrical switch for actuating the creep clutch. When the arm is in the first position, the switch is off and when the arm is in the second position the switch is on.