Abstract: An expandable matrix switching system for use in routing video and other signals transmitted over twisted pair cables from a variable number of inputs to a variable number of outputs, the matrix switching system including at least one switch frame having a plurality of input ports for receiving input signals and a plurality of output ports. Each switch frame including a processor for selectively coupling the input ports to one or more of the output ports in response to routing commands from a controller. Each switch frame also including a plurality of cascade output ports coupled to the input ports for cascading input signals to the corresponding input ports of another switch frame in the system. A plurality of the switch frames are connectable one to another providing a scalable matrix switch having a variable number of input ports and output ports controllable as a unitary matrix switch.

Abstract: An improved clamp-type garment hanger includes: a hook, a cross-bar, and at least two clamp assemblies for securing a garment to the garment hanger. Each clamp assembly includes a pair of clamping member, at least one clamping member having an inner clamping surface defined at least in part by at least one gripping pad. A first side of the gripping pad is carried by an inner clamping surface of the one clamping member, and a second side of the gripping pad is presented for contact with a garment to be hung from the garment hanger. The second side is fabricated from gripping friction material, the coefficient of friction thereof being sufficiently high to preclude movement under the weight of the garment when a normal clamping force is applied to two clamping members to move them into clamping position. The gripping pad is secured to, but preferably manually releasable from, the one clamping member for movement as a unit into and from the clamping position.