Abstract: A planar sign (16) is retained by a sign holder (1) suitable for mounting on a shelf (18). The sign holder includes a prong (8) that fits within an orifice (11) so that the sign is gripped between panel 7 and the half 12, thereby securing the sign to the shelf 18. The sign includes a tab (20) that is formed with a series of edges (23, 25, 27, 29) that define a circuitous pathway leading to a radius (34) that prevents the further advance of the prong (8). By aligning the circuitous pathway of the sign (16) with the prong (8) and advancing the sign so as to guide the prong through the pathway, the sign may be inserted into the holder (1) even if the holder has been folded and the prong secured while previously used to hold a sign.

Abstract: A centralized multipoint conferencing arrangement uses a combination of multicast and unicast transmissions that is bandwidth efficient. A method of conferencing includes transmitting multimedia streams from endpoint terminals to a central resource such as a multipoint control unit (MCU) using unicast transmission. The multimedia streams are processed in the MCU and transmitted back to the endpoint terminals using multicast transmission. In addition, the MCU transmits other multimedia streams to selected endpoint terminals using unicast transmission. At the selected endpoint terminals, processing of the multimedia streams is inhibited in favor of processing the other multimedia streams.

Abstract: A centralized multipoint conferencing arrangement uses a combination of multicast and unicast transmissions that is bandwidth efficient. A method of conferencing includes transmitting multimedia streams from endpoint terminals to a central resource such as a multipoint control unit (MCU) using unicast transmission. The multimedia streams are processed in the MCU and transmitted back to the endpoint terminals using multicast transmission. In addition, the MCU transmits other multimedia streams to selected endpoint terminals using unicast transmission. At the selected endpoint terminals, processing of the multimedia streams is inhibited in favor of processing the other multimedia streams.

Abstract: A portable automatic disappearing filament optical pyrometer having low power demand incorporating a solid state line scanner as a sensing element is controlled by a microprocessor to perform a balance between the radiation from a target and a lamp filament to provide a digital indication of the temperature of the target including compensation for emissivity of the target.