Abstract: Devices, systems and methods for cleaning a surface of as elongated instrument held within a cavity. In particular embodiments of the device, a longitudinal wire member extends along an elongated instrument (e.g. a laparoscope) and a rotatable transverse member removes matter from a surface of the instrument (e.g. a lens).

Abstract: A system and method for protecting the rights and DRM technology of a content owner while increasing the convenience for users in a networked environment, e.g., a home network. By redirecting relevant DRM installation requests (e.g., for protected music, video, books, software, etc.) from a user's client device to his home server, and then acting upon authenticated client requests for the installed content strictly via the server, the user gains the convenience of limited client independence while the content owners retain assurance that their content will not be illicitly used by or redistributed to unauthorized users.

Abstract: A digitally controlled media multicasting system containing a signal processing system accepting and optionally modifying one or more independent single- or multi-channel baseband signals (typically, but by no means necessarily, audio or video signals); amplitude-, frequency-, or phase-modulating specified RF, IF, or LF carrier wave(s) in accord with said baseband signal(s); and then compositing the modulated carrier waves into a smaller quantity of waveform(s), said waveform(s) being (as necessary) frequency-multiplied or -shifted, and amplified for wireless transmission.