Abstract: A barrier system for inhibiting marine growth on a submerged component of a boat operates on the principle that limiting the availability of nutrients that marine organisms need to survive and thrive will inhibit the growth of marine organisms. The barrier system, by restricting the exchange of water between the body of water enclosed within the barrier system and the body of water outside of the barrier system, creates and maintains a body of stagnant water which surrounds the submerged component targeted for protection from fouling growth. The submerged component may be a mounting bracket for an outboard engine and the barrier element may be resiliently adjustable in response to the act of tilting the outboard engine.

Abstract: A barrier system for inhibiting marine growth on a submerged component of a boat operates on the principle that limiting the availability of nutrients that marine organisms need to survive and thrive will inhibit the growth of marine organisms. The barrier system, by restricting the exchange of water between the body of water enclosed within the barrier system and the body of water outside of the barrier system, creates and maintains a body of stagnant water which surrounds the submerged component targeted for protection from fouling growth. The submerged component may be a mounting bracket for an outboard engine and the barrier element may be resiliently adjustable in response to the act of tilting the outboard engine.

Abstract: Initialization of a sensor for monitoring the structural integrity of a building involves the sensor, a gateway and an installer device. An automated initialization brings the sensor online and enables the sensor for remote monitoring without requiring on-site manual configuration. Through the automated initialization, the sensor joins a logical communication group and a GPS location associated with the sensor becomes remotely accessible by a human network administrator.

Abstract: A data switch includes multiple switching modules interconnected over a backplane. The data switch maintains flow integrity while path transitioning. The flow integrity can be maintained by temporarily disabling one or more of the switching modules from transmitting data units over the backplane for a flow undergoing a path transition. The disable condition is imposed when the path transition is commenced, and is lifted after the path transition is completed and an interval has passed ensuring that all data units for the flow transmitted to the backplane prior to imposing the disable condition have cleared the backplane. The backplane includes a multicast fabric and a unicast fabric, wherein flow path transitions are made from the multicast fabric to the unicast fabric upon source learning. All switching modules are temporarily disabled from transmitting data units having as a destination address an address undergoing source learning to the backplane.

Abstract: A switching fabric for a high-speed, high-performance digital traffic switch guarantees a high degree of resource availability and is resource efficient. Each input port associated with the switching fabric is assigned a time slot in a repetitive time cycle. Data cells received on input ports are staggered so that they are transmitted through the switching fabric in conformance with the assigned time slots. The time slot arrangement allows small data units associated with a particular cell, as they are forwarded through the switching fabric, to be converted into larger parallel data units which respect cell boundaries. The time slot arrangement further allows several of such larger data units to be written into an output queue in a single clock cycle. Thus, cell contention is avoided while making efficient use of queue space.

Abstract: A method and apparatus are provided for inverse transforming a matrix of discrete cosine transform (DCT) coefficients. The DCT coefficients are processed at least two bits at a time to obtain the vector dot products thereof with a DCT kernel matrix. A matrix of the vector dot products is transposed to obtain a transposed matrix of dot product elements. The dot product elements of the transposed matrix are processed at least two bits at a time to obtain the vector dot products thereof with the DCT kernel matrix. The resultant dot products are interleaved into a proper order and buffered in a series of output registers. Further efficiencies are achieved by implementing a post-add stage of an IDCT flowgraph prior to the output registers.