Abstract: A system obtains a domain-specific language (DSL) behavior document corresponding to a network appliance and including a plurality of functions, compiles using a lexer and parser the DSL behavior document into an abstract syntax tree (AST) including a plurality of function branches, interprets using a treewalker the plurality of function branches, chains into a composite behavior model a plurality of behavior groups respectively corresponding to the plurality of function branches based on the interpreting, and stores the composite behavior model in a database associated with the network appliance.

Abstract: An image transfer apparatus comprises an input operable to receive a signal comprising two images for different respective non-stereoscopic viewpoints of a virtual environment, a first output operable to transmit a signal comprising the two images formatted as a stereoscopic image to at least a first display, and a transmitter operable to transmit control signals to at least two active shutter glasses, the control signals arranged to allow respective wearers of the glasses to only view a respective one of the two images.

Abstract: An image transfer apparatus comprises an input operable to receive a signal comprising two non-stereoscopic images for different respective viewpoints of a virtual environment, a first output and a second output, and a signal splitter logic, and in which the signal splitter logic is operable to extract and separate the two non-stereoscopic images from the received signal, to format each of the two separated images for reception by a respective conventional 2D display, and to output to the first output and the second output a respective signal comprising one of the two separate images.

Abstract: A device for conversion or amplification of the frequency of optical radiation, both continuous wave and pulsed, with a cheap and compact structure. The device includes a multilayer structure including a metal layer and a dielectric layer, and a transparent dielectric material disposed on the top layer of the multilayer structure. An incident beam is coupled by a coupling device, utilizing a specific surface plasmon-polariton mode, and thereby output beams reflected from a sample are modulated or amplified.

Abstract: A horn loudspeaker comprises: a horn (22) having a throat (26) and a mouth (30); a primary electro-acoustic driver (24) mounted at or adjacent the throat of the horn and directed generally along the horn; and at least one secondary electro-acoustic driver (32T, 32B, 32L, 32R) mounted part-way along the horn and directed generally across the horn. The secondary driver(s) can be used to change the local impedance conditions in the horn and therefore to change the polar response of the horn loudspeaker. At least one filter (12A, 12E) is provided for filtering an input signal (34) for the primary driver to produce a filtered signal for the primary driver or each of the secondary drivers. Such a filter may be chosen or designed so as to optimize some aspect of the polar response of the horn loudspeaker, for example to increase directivity, or flatten the polar response within a specified included radiation angle, or to increase omnidirectionality.

Abstract: An optical sensor for measuring physical magnitudes, such as a differential pressure, is described. The pressure sensor comprises a deformable diaphragm (24) which separates two measurement chambers (26,28) where pressures P1 and P2 exist. An optical conductor (34) is attached to the diaphragm (24). A light source (40) allows a light beam to be radiated towards the conductor (34). An optoelectrical converter (42) performs a detection of the light energy (1) output from the light guide (34), and thus of the difference between both pressures (P1,P2).