Abstract: Pressure control systems and methods are provided that aid in the control of fluidic or pneumatic devices, by improving the ability to control pressure independently and simultaneously on multiple channels, which in turn permits pressure changes on the channels to occur more quickly and more precisely. In order to match rise/fall times between steps on different channels that may be of different magnitudes, various embodiments slow down fast steps such that they match the “default” rate of slower steps, such as by using a step partitioning method or breaking a single step into substeps with a pause inserted between substeps of necessary duration such that the complete step time matches the target step time. The provided systems and methods may utilize a combination of proportional-integral-derivative (PID) control loop and discrete pressure steps to achieve faster, more accurate control over pressure rises and pressure falls.

Abstract: Helmets for applying a magnetic field to the head of a subject, comprising: a housing comprising a concave surface configured to receive a portion of the head of the subject; a motor coupled to one or more of: a first permanent magnet via a first axle along a first axis of rotation, wherein the first axle drives movement of the first magnet; a second magnet via a second axle along a second axis of rotation wherein the second axle drives movement of the second magnet; and a third magnet via a third axle along the third axis of rotation wherein the third axle drives movement of the third magnet, wherein the axes are parallel; and a fit mechanism comprising a adjuster coupled to the first magnet, wherein movement of the adjustor moves the first magnet independently of the second or the third magnet.

Abstract: Facilitating Bi-Directional PIM communication between hosts in different multicast domains. A first rendezvous point (RP) router contained in a first multicast domain receives a first control packet. The first control packet includes a first multicast destination address G1. In response to receiving the first control packet, the first RP router generates a second control packet. This second control packet includes a second multicast destination address G2, wherein the second multicast destination address G2 is distinct from the first multicast IP address G1. After the second control packet is generated, the first RP router transmitting the second control packet toward a second RP router contained in a second multicast domain. The second control packet initiates a distribution tree building process between the first and second RP routers. This distribution tree can be used to transmit multicast data packets between the first and second RP routers.

Abstract: A system and method to facilitate Bi-Directional PIM communication between hosts in different multicast domains. In one embodiment of the method, a first rendezvous point (RP) router contained in a first multicast domain receives a first control packet. The first control packet includes a first multicast destination address G1. In response to receiving the first control packet, the first RP router generates a second control packet. This second control packet includes a second multicast destination address G2, wherein the second multicast destination address G2 is distinct from the first multicast IP address G1. After the second control packet is generated, the first RP router transmitting the second control packet toward a second RP router contained in a second multicast domain. In one embodiment, the second control packet initiates a distribution tree building process between the first and second RP routers.