Abstract: A videoconferencing system has a plurality of displays arranged side-by-side. Top loudspeakers are arranged adjacent the tops of the displays, and bottom loudspeakers are arranged adjacent the bottoms of the displays. A control unit operatively coupled to the displays and the loudspeakers routes video to each of the displays and routes audio corresponding to each display to any of the top and bottom loudspeakers arranged adjacent the display. Thus, the top and bottom loudspeakers form a vertical pair of loudspeakers that output the corresponding audio for its respective display. In this way, the audio for the video of a given display is perceived by participants to originate from the center of the given display. If one of the loudspeakers is not provided, gain setting and mixing between adjacent sets of loudspeakers can produce a virtual loudspeaker for the one that is missing.

Abstract: A videoconferencing system has a plurality of displays arranged side-by-side. Top loudspeakers are arranged adjacent the tops of the displays, and bottom loudspeakers are arranged adjacent the bottoms of the displays. A control unit operatively coupled to the displays and the loudspeakers routes video to each of the displays and routes audio corresponding to each display to any of the top and bottom loudspeakers arranged adjacent the display. Thus, the top and bottom loudspeakers form a vertical pair of loudspeakers that output the corresponding audio for its respective display. In this way, the audio for the video of a given display is perceived by participants to originate from the center of the given display. If one of the loudspeakers is not provided, gain setting and mixing between adjacent sets of loudspeakers can produce a virtual loudspeaker for the one that is missing.

Abstract: An apparatus and method for reducing pulsation-induced errors in the secondary system of orifice meters or other differential pressure flow measuring devices. The apparatus of the present invention comprising means for reducing the distance between the flow meter and the differential pressure detector for reducing pulsation-induced errors as well as reducing errors caused by rectification and energy redistribution, and means for maintaining a constant cross section between the orifice meter or the like and the differential pressure detector for reducing the pulsation-induced errors and, particularly for reducing errors caused by rectification and energy redistribution.

Abstract: An integral handset supporting hook and number card cover for supporting a handset for a wall or desk mounted telephone subset comprises a hook portion which can be mounted in either a wall or desk mounting position and a number card cover portion for protectively covering the local telephone number card. The hook/cover is comprised of a clear plastic or polymeric material thereby allowing a user to see the number through the hook/cover. The hook/cover is easily adaptable for use with a wall mounted unit utilizing a protruding hook for supporting a handset or with a desk mounted unit employing the same hook in an inverted position where the hook is recessed and does not interfere with the lifting of the handset.

Abstract: A telephone subset with a desk and wall mount capability employs an east-to-west oriented handset. The subset base has a bearing at a first axis on which the subset housing pivots. The base has slots for the tabs of a bracket to engage and hold the subset in the desk or wall positions. The housing provides a cylindrical well in which a spring loaded pin is mounted, and also provides surfaces on which the subset handset cradle, which houses the hookswitch, rests in the desk and wall configurations. To prevent the bracket from translating, the spring loaded pin engages a hole in the bracket. As the pin is depressed, it disengages the hole and allows the smaller diameter section of the pin to enter the slot so the bracket can translate. The bracket provides an axle on which the cradle mounts, forming a pivot at a second axis, for pivoting from a desk position to a wall position.

Abstract: A key assembly having a line button and a hold button includes a release plate which engages pins on the buttons extending transversely of the buttons to a plane of the plate. The plate includes a first tongue having an undercut for receiving the pin of the line button for locking the line button, the first tongue having an inclined edge for urging the plate back from a rest position thereof for insertion of the line button pin in the undercut. The plate includes a second tongue having an inclined edge positioned on a lower portion of said tongue for engagement with the hold button pin on an upstroke of the hold button. A bypass path is provided for the hold button pin, which pin is spring loaded, to enable the pin to travel from the top of the second tongue to the bottom of said second tongue without introducing a translatory motion to the plate.

Abstract: A player piano recording system has photosensor flags secured to the undersides of the piano keys, vertical movement of which is detected by horizontally adjustable photosensors to produce "key played" and key velocity signals which supplied to a microprocessor for deriving expression signals for recording on magnetic tape. The microprocessor provides output expression values and key play information. According to the invention, the expression values are a direct function of key velocity and key play information and switch selected boost (an enhanced initial frame expression for overcoming solenoid inertia) and add (for trill) values. Key play data is dependent upon key play inputs and the frame extension switch value. The unique structure of the key flag permits horizontal adjustment of the photosensors for vertical misalignments etc. of the piano keys.

Abstract: A pasteurella vaccine e.g. for use with cattle or particularly sheep, comprises antigenic material derived from the A1 and A2 serotypes of Pasteurella haemolytica, the A1 serotype antigenic material comprising capsular extract, e.g. especially salicylate extract, and the A2 serotype antigenic material comprising heat-killed whole organisms, and a process for the production of a pasteurellosis vaccine comprises preparing said antigenic material from P. haemolytica organisms and formulating the antigenic material into a vaccine, e.g. especially an aluminium hydroxide gel/oil adjuvant vaccine. Also a method for use in agricultural animal husbandry for the prevention and control of pasteurellosis in sheep, cattle and other animals comprises vaccinating the animals with a vaccine according to the invention.